Datasheet VHTP2506 Reference Drawing (Teco)

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ISSUED MODEL

AEEHNH

APR. 30 2015

REVISED

HIGH THRUST HOLLOWSHAFT PUMP MOTORS

PERFORMANCE DATA

LOW VOLTAGE SQUIRREL CAGE

TEFC, NEMA T-FRAME DESIGN B, CODE G, CLASS F, 40℃ AMBIENT,

CONTINUOUS DUTY, 1.15 S.F. 230/460V 60HZ

TYPICAL PERFORMANCE (460V)

FULL FRAME

LOAD SIZE

EFFICIENCY POWER FACTOR CURRENT

FULL 3/4 1/2 FULL 3/4 1/2 FULL

LOAD %

LOAD LOAD LOAD LOAD LOAD LOAD ROTOR LOAD ROTOR

LOCKED FULL

TORQUE

LOCKED

ROTOR APPROX. REED

BREAK-

DOWN

THRUST

DOWN

APPROX.

ROTOR

WEIGHT

WEIGHT FREQ.

RPM (EHV)

1186 442.995.0 94.9 94.5 74.879.8

100

890

1781

125

1186

889

1781.

150 1188

890

1781

200

1188 1783

250

1188

300 1783

NOTE：

NOM. MIN. 444TP 447TP

95.4 445TP 447TP 445TP 447TP 449TP 447TP 449TP 449TP 449TP 328 1977 449TP

95.0

95.8

95.8 77.2

95.0 94.9 94.5

96.2

95.8

96.2

THE ABOVE ARE TYPICAL VALUES BASED ON TEST ACCORDING TO ANSI／IEEE STANDARD 112 METHOD B.

BREAKDOWN & LOCKED ROTOR TORQUES ARE SHOWN AS AVERAGE EXPECTED VALUES. EFFICIENCY, POWER FACTOR, SPEED AND TORQUE ARE THE SAME FOR OTHER VOLTAGES.

CURRENT VALUES VARY INVERSELY WITH VOLTAGE.

4. DECLARED EFFICIENCY HAVN`T TAKEN INTO ACCOUNT OF THRUST LOAD LOSSES

5. TOLERANCE ACCORDING TO NEMA MG1-12& IEC 34-1

6. THRUST LOAD LOSSES ESTIMATED OF ANGULAR CONTACT BALL BEARING AS FOLLOWS：(ACCORDING TO NEMA STANDARD MG1-12.7)

NOM. NOM.

94.1

94.4 94.0 76.0

93.694.5

95.3 94.9444TP

94.5

94.1 94.9 94.5 64.0

94.9

94.1

95.7 166 1186

95.0

95.7 95.3

95.0

94.1

95.4 96.1

95.0

95.7 76.6

95.4

96.1 95.7

95.0

95.7 95.3

95.4

FRAME SIZE 444TP~445TP 447TP~449TP

7. REDUCING THE THRUST LOAD WILL INCREASE BEARING LIFE AS FOLLOWS：

THRUST(%) 100 82 73 63 56 51

BEARING LIFE(Hrs.) 8800 15000 20000 30000 40000 50000

8. DATA SUBJECT TO CHANGE WITHOUT NOTICE

9. IS SUITABLE FOR 4, 6 POLE UP TO 200HP.

10. 230/460 V UP TO 125HP, 150HP AND ABOVE, APPLY 460/(800) V ONLY

% % % A A lb-ft %FLT %FLT

791

988

1186 1581

590.2791

553.7

738.6988

663.3

885.4

589.9

884.4

736.6292 1977

1105.5

130 143 155 988 10100 161

189 1186 192 235 254 1581

351 2372 883.9

85.6

79.0

76.294.5

95.3

88.0

76.6 71.6 61.6

82.5

95.395.8

83.1

74.3

83.1

64.8 123 100 220 56.8

71.0 61.0

70.6

80.6 8900368.7 100

74.0

71.2 61.2

83.0 73.0

72.2 62.2

77.595.7

61.6

71.6

78.1 68.1

69.3 59.3

68.1

78.196.1 95.7

LOSS HP /100 RPM RPM/1000 LB THRUST

100

220 210

100

220

100

220 140.4

100442.4

210 210

100 100 100

200

100

210

100

210 100 210 100

220

0.0180

0.0194

lb-ft

119.6

36.1

66.9

47.9

97.7

189.6220

62.2

123.2

79.3 10100 2840

93.0

LBS 10100 490 12600

12600

8900 1990 11500 2440 12600 2990 10100 2420 11500 2850

11500 3110145.1 10100 3070

LBS

690 400 550 770 470 640 970

53067.5 750 620 840 690

LBS Hz 1950 2390 1960 2060 2570

43 44 43 40 43 41 44 35 44 36 36 34 34

APPD.

CHKD.

DWN.

M.Y.HSU

H.Y.WANG

JUL. 30 2013

TECO Electric & Machinery Co., Ltd.

DWG NO.

3A057M068E

REV.00 1/1

DATE：

May

.01.200

LOW VOLTAGE

LINE RUN (

)△

△△

△

LINE START (

2Y)

HIGH VOLTAGE

LINE RUN (

)△

△△

△

LINE START (

RUN

( 2

)△

△△

△

12 10 9

7 2 5

6 8 11

1 4 3

12 10 9

7 2 5

6 8 11

1 4 3

12 10 11

6 4 5

7 8 9

1 2 3

9 7 8

6 4 5

12 10 11

1 2 3

12 10 11

4 5 6

7 8 9

1 2 3

12 10 11

6 4 5

7 8 9

1 2 3

CONNECTION DIAGRAM

4P 2 /△ 2Y/△/Y 12 leads

For Y-△start or PWS on Low Voltage

MODEL

DAC-1705

T10

T11

T12

SCHEMATIC － 2△/2Y/△ /Y CONNECTION

Y-△ start Connection

APPD. CHKD.

DWN.

START ( )△

M.C.Tsai May,01,’09

C.L.Huang May,01,’09

J.C.Lan May,01,’09

PWS on Low Voltage Connection

△

△△

DWG NO：

DAC-1705

Instructions For

Three Phase Induction Motors

Vertical High Thrust Type

IEC Frame 112 (NEMA Frame 182) and above

Addendum A

INDEX

Page

1. INTRODUCTION ..................................................................................................................... 3

1.1 General ............................................................................................................................. 3

1.2 Serial Number of the Machine ........................................................................................ 4

1.3 Mounting Position ........................................................................................................... 4

1.4 Direction of Rotation ....................................................................................................... 4

2. ACCEPTING, INSPECTION, STORAGE, TRANSPORTATION ......................................... 5

2.1 Inspection Upon Receipt ................................................................................................. 5

2.2 Storage ............................................................................................................................. 5

2.3 Transportation ................................................................................................................. 9

3. INSTALLATION ..................................................................................................................... 10

3.1 Site and Environment for Motor Installation ............................................................... 10

3.2 Foundation ..................................................................................................................... 11

3.3 Installation of Shaft Coupling ....................................................................................... 12

3.4 Electrical Connections ................................................................................................... 15

4. OPERATION........................................................................................................................... 17

4.1 Examination Before Start .............................................................................................. 17

4.2 Starting Operation ......................................................................................................... 21

5. MAINTENANCE .................................................................................................................... 25

5.1 Major Points in Regular Inspection and Maintenance ................................................ 25

5.2 Motor Windings ............................................................................................................. 25

5.3 Clean the Interior of the Motor ..................................................................................... 26

5.4 Clean the Exterior of the Motor .................................................................................... 27

5.5 Maintenance of Anti-friction Bearing ........................................................................... 28

5.5.1 Frequency of Relubrication ................................................................................... 28

5.5.2 Kinds of Grease .................................................................................................... 28

5.5.3 Grease Quantity .................................................................................................... 30

5.5.4 Re-Greasing .......................................................................................................... 30

5.5.5 Oil Relubrication (For oil lubrication types only) .................................................. 31

5.5.6 Cleaning and Installation of Bearings .................................................................... 32

5.6 Maintenance of Non-Reverse Ratchet Mechanism ...................................................... 32

5.7 Dismantling and Assembly Procedure .......................................................................... 40

5.8 Records of Operation and Maintenance ....................................................................... 42

6. FAULT FINDING AND RECOGNITION ............................................................................. 37

7. RECYCLE ............................................................................................................................... 39

Appendix 1. Daily Inspection ...................................................................................................... 42

Appendix 2. Monthly Inspection ................................................................................................ 43

Appendix 3. Regular Inspection ................................................................................................. 44

Appendix 4. Typical Motor Cross Sectional Drawings

Appendix 4-1. Typical Motor Cross Sectional Drawings

Appendix 4-2. Typical Motor Cross Sectional Drawings

Appendix 5.Typical Motor Cross Sectional Drawings

Appendix 5-2. Typical Motor Cross Sectional Drawings

Appendix 6. Typical Motor Cross Sectional Drawings

：：：：

SCIM, TEFC .................................... 47

：：：：

SCIM, TEFC ......................... 48

：：：：

SCIM, TEFC ......................... 49

：：：：

ODP ................................................... 50

：：：：

ODP ....................................... 52

：：：：

SCIM, TEWC ................................... 53

Appendix 7. Typical Ball Bearing Construction Drawing ......................................................... 54

Appendix 7-1. Typical Ball Bearing Construction Drawing .............................................. 55

Appendix 8. Typical Roller Bearing Construction Drawing...................................................... 56

Appendix 9. Typical Ball Bearing with Insulation Bushing Construction Drawing ................. 57

Appendix 10. Typical Thrust Bearing Assembly Drawing (Vertical Machine) ......................... 58

Appendix 11. Shaft Earth Brush Assembly Drawing (TAC) ..................................................... 59

Appendix 12. Shaft Earth Brush Assembly Drawing (TECO) .................................................. 60

Appendix 13. Bolt Torque (kg-cm) ............................................................................................. 61

Appendix 14. TECO Worldwide Operations ............................................................................. 62

Addendum A

1. INTRODUCTION

1.1 General

TECO-Westinghouse high thrust vertical motors covered in this instruction manual are high quality materials and designed to give long and trouble free service when properly installed, maintained and operated in strict accordance with the outline drawing, motor nameplates and this instruction manual. These motors, including both hollow shaft and solid shaft, are generally used to drive pumps and must not be altered or modified in any unauthorized manner.

High voltage and rotating machinery could cause serious injury or loss of life. Installation, operation, and maintenance must be performed by qualified and competent personnel only.

Since this instruction manual cannot cover every eventuality of installation, operation and maintenance, the following points should however be considered and checked.

● Technical data and information on permissible use such as assembly, connection, ambient, area classification and operating conditions given in the related catalogue, operating instructions, nameplates and other production documentation.

● General assembly/installation and safety regulations

● Local (job site) and plant-specific specifications and requirements

● Proper use of transport, lifting devices and tools

● Use of personal protective equipment

The following safety indications should be observed when reading these instructions:

Electric Hazard.

Danger.

ATTENTION！！！！

Warning of possible damage to the motor or installation.

This instruction manual is for TECHNICAL USE ONLY, NOT FOR COMMERCIAL PURPOSE. The warranty is limited to coverage expressed in your sales contract. Documentation of storage, transportation, installation and examination, if required, shall be obtained from TECO-Westinghouse service centers before start and maintenance.

1.2 Serial Number of the Machine

Each electric motor is identified with a serial number. Serial number is stamped on a main name

plate which is attached to the frame by rivets.

1.3 Mounting Position

All vertical motors covered in this instruction manual, shall be arranged vertically as shown below

during storage, transportation, handling and installation.

IM3011

Vertical flange mounting (VFM)

Fig. 1 Mounting Arrangement

1.4 Direction of Rotation

The arrow on the direction nameplate indicates the direction of the rotation, view from Non Drive

End (or top). The motor must be operated in the direction shown.

Fig. 2 Direction nameplate

ATTENTION！！！！

Operating the motor in the incorrect direction may cause serious damage to both the motor and driven equipment.

Addendum A

2. ACCEPTING, INSPECTION, STORAGE, TRANSPORTATION

2.1 Inspection Upon Receipt

Check the following upon receipt:

● Is there any visible damage to the motor or case? Any damage should be photographed, documented and reported to the carrier and TECO-Westinghouse immediately.

● Are the nameplate ratings identical with your confirmed order？

● Are dimensions and color in compliance with your specifications？

● Are the nameplate ratings for heater, thermal protector, temperature detector, etc. identical with

your confirmed order？

● Are all accessories and accompanying instruction manuals in good order？

● Does the arrow head indicate the correct direction of rotation?

● If there are any specific requirements, please ensure they are in conformity with your

specification.

● Motor stator housing may be outfitted with condensation drain holes that are either open holes, drain holes with plugs or drain holes with breather drains. For horizontally mounted motors position the drain holes at the lowest point possible to allow for the egress of condensation. For vertical shaft installations the lower end bracket must be outfitted with drains at the lowest point possible. Prior to installation remove drain plugs if fitted.

2.2 Storage

2.2.1 General

When motors are not in operation, the following precautionary measures must be taken to insure the motors do not suffer deterioration or damage from moisture, dust and dirt, or careless handling. The climate, length of time the equipment is to be stored, and the adequacy of the storage facilities will determine the storage precautions required.

Any deterioration or damage of the motors due to customer's incorrect storage of the motors is not covered by the warranty. This includes all periods of time when the motor is installed on site but has not been placed into operation.

The following procedures must be followed and a maintenance log must be kept to keep from voiding factory warranty. The records are also useful to decide if a motor is suitable or not to be put into service.

2.2.2 Location

The ideal storage area is a clean, heated, and well-ventilated building.

(a) High and dry, well-ventilated indoor, without exposure to direct sun lights, free from dust,

corrosive gas (such as chlorine, sulfur, dioxide, and nitrous oxides) and fumes, and infestation by vermin or insects.

(b) The ideal storage temperature range is from 10 ℃to 50℃ (50 to 12℉5℉), and relative

humidity is

≦60%.

(d) Precautions should be taken to prevent rodents, snakes, birds or other small animals from

nesting inside the motors. In area where they are prevalent, precautions must be taken to prevent insects, such as dauber wasps, from gaining access to the interior of motors.

(e) Entirely free from vibration. Vibration levels above 3.8 mm/s (0.15 in/sec) velocity could

damage the bearings and cause “false brinelling” of the bearing races.

(f) Motors should be put on pallets to prevent moisture from accumulating underneath.

(g) Motors should be stored in a heated building, outdoor storage is not suitable for motors.

(h) If motors have to be stored outdoors for some reasons, they should be well covered with a

tarpaulin and protected from contamination and moisture. The cover should extend to the ground however it should not tightly wrap the motor. This will allow the captive air space to breath, minimizing formation of condensation. Motors should be well shielded from dust, but under well-ventilated conditions. Outdoor storage should be for a very short period of time (less than one month) only and the risk of deterioration is the responsibility of the users.

2.2.3 Motor Position

Motors must be stored in vertical position. Where motors are mounted to machinery, the mounting must be such that drains and breathers are fully operable and are at the lowest point of the motor.

2.2.4 Moisture Prevention

Since moisture can be very detrimental to electrical components, the motor temperature should be maintained about 5℃ above the dew point temperature by providing either external or internal heat. If the motor is equipped with space heaters, they should be energized at the voltage shown by the space heater nameplate attached to the motor. Check weekly that the space heaters are operating.

Incandescent light bulbs can be placed within the motor to provide heat, if the anti-condensation space heaters are not fitted. However, if used, incandescent bulbs must not be allowed to come in contact with any parts of the motor because of the concentrated hot spot that could result.

2.2.5 Prevent Corrosion and Frost Damage

When motors are shipped from the factory, external machined surfaces, including the shaft extension and bearing journals on sleeve bearing motors, are covered with a protective coating. This coating should be examined periodically to make sure that it has not been accidently removed. If necessary, re-coat the surfaces with a rust inhibiting material, such as Rust Veto No.342 or an equivalent. Care should be taken to keep parts such as fitted surface, key, shaft extension, mounting feet or face, and axial central hole from any collision with foreign matters, and to have rust preventative in place. It is a good practice to seal any shaft openings with silicone, rubber caulking, or tape. If any rust is observed, measures should be taken to remove the rust and protect against it. Grease or anti-corrosion agent should also be generously applied to prevent rusting.

ATTENTION！！！！

Immediately remove any shrink wrap that may have been used during shipping. Never wrap any motor in plastic for storage. This can turn the motor into a moisture trap causing severe damage.

For water-cooled motors or motors using bearings with water-cooling coils, please make sure the water is dried off of the coils to prevent tube corrosion or frost damage.

TECO-Westinghouse reserves the right to void warranties based upon evidence of rust or other indications of moisture inside the motor that indicate that the motor was improperly stored.

Addendum A

2.2.6 Insulation Resistance Test

Even during storage, the insulation resistance should be kept above the specified values.

(a) For measurement of insulation resistance and acceptable standard values, please refer to

measures stated in 4.1.2 "Measurement of insulation resistance".

(b) Insulation resistance test should be performed once every three months.

0Ω/℃)

is necessary once every

three months.

2.2.7 Long Period of Idle (storage)

If the motor is not in operation for a long period of time (one week and above) after installation or has been in operation but stopped for a period of time, the following precautions must be taken.

(a) Protect the motor as stated in 2.2.4 and 2.2.5.

(b) Insulation resistance test should be performed as stated in 2.2.6.

(d) Operation test should be performed once every three (3) months.

(e) If external vibration is present, the shaft coupling should be opened.

(f) If motors are equipped with drain plugs, they should be removed.

(g) When motors equipped with brushes, the brushes should be lifted in the brush holder, if there is

no protective strip (such as MYLAR) between the brushes and collector rings.

(h) For water-cooled motors or motors using bearings with water-cooled coils, ensure the water is

dried off the coils to prevent tube corrosion or frost damage.

(i) Storage maintenance must be documented for warranty and reference purposes.

2.2.8 Bearing Protection

(a) If the motor has been provided with a shaft shipping brace to prevent shaft movement during

transit, it must be removed before operating the motor. It is very important that this brace be reinstalled exactly as it was originally, before the motor is moved from storage or any time when the motor is being transported. This prevents axial rotor movement that might damage the bearings.

Shaft Shipping

Brace

Shaft Shipping

Brace

ent

sloshing and possible damage. Refill oil when motor has been moved to the new

Fig. 3-1 Fig.3-2

Shaft Shipping Brace

(b) Motors equipped with oil lubricated bearings are shipped from the factory with the bearing oil

reservoirs drained. In storage, the oil reservoirs should be properly filled to the center of the oil level gauge with a good grade of rust inhibiting oil. To keep the bearing well oiled and prevent rusting, the motor shaft should be rotated several revolutions every month ensuring the shaft does not come to rest in its original position. If the motor is not in operation for over six months, dismount the upper cover of the bearing housing and check the anti-corrosion protection.

Fig. 4 Upper and lower bearing

Motor must not be moved with oil in reservoir. Drain oil before moving to prev

location.

Addendum A

factory and no further greasing is required in storage. If the motor is not in operation for over three months, add grease to each bearing per lubrication nameplate. The shaft should be rotated at least 15-20 revolutions every month to maintain proper distribution of the grease within the bearings.

(d) If the storage is over two years, it is recommended that the bearing assembly be dismantled and

that the bearing parts are inspected before commissioning. Any corrosion has to be removed with fine emery cloth.

2.2.9 Removal From Storage

After long period of idle or storage, and, prior to energizing the motor, a thorough inspection and megger test of windings is required. The bearings should be inspected for corrosion, false brinelling and deformation.

If any of the following conditions exist, then re-conditioning may be required before putting a motor into service.

(a) Winding resistance is less than recommended.

(b) Evidence of rust or other indications of moisture inside the motor.

(d) Idle or storage longer than the warranty period.

(e) Idle or storage in dirty or damp surroundings.

(f) Storage in unheated area where the temperature and humidity fluctuate.

(g) Idle or storage where it has been subject to vibration, such as from nearby machinery or passing

traffic.

(h) Outdoor storage.

(i) No maintenance records showing that the storage procedures have been followed.

Any reconditioning required, as noted by the inspections after removal from storage, should be performed prior to putting the motor into service. Such inspection and testing or re-conditioning are available from local TECO-Westinghouse service/facilities. Reconditioning after idle or storage is not covered by factory warranty. Any parts that must be replaced due to damage or deterioration will be at customer’s cost.

2.3 Transportation

ATTENTION！！！！

To keep the rotating parts of motors from moving, thus preventing damage and scratching during transportation, they should be held securely with a locking device. Ensure all locking devices are removed before operating the motor. This device must be reinstalled, exactly as it was originally, before the motor is moved from storage or any time when the motor is being transported.

Vertical mount type motors should be transported in a safe stable and vertical position only.

Do not use the hoisting hook/eyebolts to lift more than the motor itself. They are designed to support the motor only.

Make sure the hoisting hook is correctly attached to the eyebolt(s) or lug(s) of the motor and that the eyebolt(s)/lug(s) are fully threaded in before hoisting. Also note such parts as fan cover, ventilation box, bracket, slip-ring covers, etc. may have their own hoisting lugs which can only carry their own weight. Nothing extra should be attached while hoisting.

Do not twist or cross the steel cables. Make sure the eyebolts have been securely threaded with the shoulder flush and the sling angle is correct.

Suspension Rod

Fig. 5

3. INSTALLATION

3.1 Site and Environment for Motor Installation

3.1.1 General

Standard environment and site conditions for the installation of motors are usually set as follows:

(a) Ambient temperature: -20 ~ +40 ℃

(b) Humidity: Relative humidity shall be below 95%RH for totally-enclosed types, and below

80%RH for semi-enclosed types.

(d) Harmful gases, liquids, dusts and high moisture levels should be absent.

(e) Foundations should be strong and free of vibration.

For water-cooled motors or motors using bearings with water-cooling coils, the ambient temperature must not drop below 5 (℃41℉) to prevent frost damage. If lifting a motor under -20

℃

Addendum A

is required, or there are any special environmental conditions, please inform us at time of order.

3.1.2 Ventilation and Space

(a) Installation area should be well-ventilated.

(b) The installation space should be large enough to facilitate heat dissipation and maintenance.

3.2 Foundation

Motor manufacturer is not responsible for the foundation design. Motor weight, thrust load, twisting moments, seismic forces and other external applied loads must be considered in foundation design by others.

3.2.1 Reactions of Vertical Motor

For a vertical motor with N pcs hold down bolts, the reactions necessary for foundation design are as follows – kgs per bolt at centerline of hold down bolt holes:

(a) Rated motor torque（T

(b) Maximum motor torque（T

Reactions = T

/ bolt number/ PCD/2

max

）

, reactions = TR / bolt number/( PCD/2 )

）

max

Fig. 6

3.2.2 The foundation of vertical induction motor (Also the foundation of pump)

(a) Foundation of motor/pump must be rigid and secure to provide adequate support. There must be

no vibration, twisting, misalignment etc. due to inadequate foundations.

(b) A massive concrete foundation is preferred in order to minimize vibration. Rigidity and stability

are enhanced by prop plate and foundation bolt. As shown in Fig.7 and Fig.8.

Foundation bolt

(SS41)

Pump

Prop plate

Hex nut

Motor

Base plate

Motor support

Concrete

Base foundation

Fig. 7

3.2.3 Installation of vertical motor

(a) All mounting surfaces must be clean and level. (b) Foundation must be leveled at least at 4 points and guaranteed to be below 0.04mm flat and

level.

acceptable, then set the motor on the mounting foundation.

(d) Accurately install shaft couplings.

Fig. 8

3.3 Installation of Shaft Coupling

3.3.1 General

ATTENTION！！！！

Motors must always be accurately aligned, and this applies especially where they are directly coupled.

Incorrect alignment can lead to bearing failure, vibration and even shaft fracture. As soon as bearing failure or vibration is detected, the alignment should be checked.

3.3.2 Mounting procedure

Field installation of a coupling to the motor shaft should follow the procedures recommended by the coupling manufacturer. The motor shaft extension must not be subjected to either extreme heat or cold during coupling installation.

3.3.3 Alignment

The motor shaft and the driven shaft should be aligned within the following tolerances in both angular and parallel alignment:

Addendum A

TIR Range of rotating speed

Solid coupling

Flexible coupling

C 2500rpm and above

0.03 0.03

“A” TIR

indicator

Indicator

base

“C” TIR

indicator

base

Below 2500rpm 0.04 0.05

A 2500rpm and above 0.03 0.03

Below 2500rpm 0.03 0.04

Unit：mm

Angular misalignment is the amount by which the centerlines of driver and driven shaft are skewed. It can be measured using a dial indicator set up as shown in Fig.9. The couplings are rotated together through 360 degrees so that the indicator does not measure run out of the coupling hub face. The shafts should be forced against either the in or out extreme of their end float while being rotated.

Parallel misalignment is the amount by which the centerlines of the driver and driven shafts are out of parallel. It can be measured using a dial indicator set up as shown in Fig.10. Again, the couplings are rotated together through 360 degrees so that the indicator does not measure runout of the coupling hub outside diameter.

TIR = Total indicator reading (by dial indicator)

Indicator

Coupling Hubs

Fig. 9 Fig. 10

Coupling Hubs

ATTENTION！！！！

Measurements should be made only after shimming and with hold-down bolts properly tightened.

3.3.4 Dowel for Motor

After the motor has been properly aligned with the driven equipment and the hold-down bolts have been installed and tightened, for motors with fabricated frame, at least two dowel pins should be installed in two diagonally opposite motor feet.

3.3.5 Installation of Shaft Coupling (Vertical Hollow Shaft Motor Only)

Bolted coupling as Fig.11 (a) Bearings are provided to absorb some upward shaft thrust when the coupling is fitted. (b) The coupling is fastened with bolts.

bolt

Pump

Driv

Note：Standard high thrust motors can absorb momentary up thrust load up to 30% of the standard

down thrust load. If the up thrust is long duration (over 10 seconds) and/or exceeds 30% of the standard high thrust rating, special design arrangements are required and a standard motor is not suitable.

Up thrust

shaft

coupling

Drive pin

Ratchet pin

Fig. 11

3.3.6 Non-Reverse Ratchet/Coupling, as Fig. 11 (If fitted)

The non-reverse coupling is also a bolted type and,

(a) It prevents the pump and motor from rotating in the reverse direction.

(b) It also prevents damage from over speeding and damage to pump shaft and bearings.

friction as the motor comes up to speed.

(d) When power is removed, speed decreases, and the pins or balls fall. At the instant of reversal, a

pin or ball will catch in a ratchet tooth and prevent backward rotation.

(e) When installing the non-reverse coupling, do not use lubricant. Lubrication will interfere with

proper operation. The top half of the coupling should seat solidly on the lower half and the pins or balls should touch the bottom of the pockets between the teeth in the plate.

(f) As with the bolted coupling, the up thrust capabilities are 30% of the standard high thrust rating

for down thrust.

ATTENTION！！！！

Do not apply non-reverse ratchets on applications in which the pump reversal time from shutdown (the instant the stop button is pressed) to zero speed is less than one second.

3.3.7 Manual Rotation of Large Vertical Rotor with Sleeve Bearing During Alignment

(a) If there is a thread in the non-drive end shaft center, the breakaway torque can be overcome by

the use of torque wrench provided there is no ratchet. Remove the top cover, insert a bolt in the threaded shaft center and use a torque wrench to apply the rotating force. The breakaway torque value will determine the size of torque wrench required.

Addendum A

Coupling

shaft

Torque [kg-mm] = Rotor Wt [kg] * Thrust Pad Center Radius [mm] * 0.4

0.4 = coefficient of friction for dry lubrication

(b) An alternate is to use a long bar bolted to the coupling to apply the torque.

below using a jack, then the rotor weight is reduced and the torque needed to breakaway is much less. This does not always work, as sometimes the pads adhere to the thrust collar face due to cohesion.

There is no danger of Babbitt damage due to breakaway because it only takes a small revolution of

the rotor to lubricate all shoe surfaces.

3.3.8 Removal of Redundant Shaft Key

When the length of coupling hub is different from the length of shaft key, the motor may have a high vibration level due to this unbalance condition. The removal of redundant shaft key is necessary, shown as Fig.12.

Method (1):

After installing the coupling, use a grinding wheel to remove the redundant key (hatch area).

Method (2):

Before installing the coupling, calculate the different length between coupling hub and shaft key, then cut the half of this different value (hatch area) to achieve approximate-balance condition.

Redundant key

Drive-end

Method (2) Method (1)

Redundant key

Drive-end

Fig. 12

3.4 Electrical Connections

All interconnecting wiring for controls and grounding should be in strict accordance with local requirements such as the USA National Electrical Code and UK IEE wiring regulations.

Wiring of motor and control, overload protection and grounding should follow the instructions of connection diagrams where provided.

The bolted joints between the motor lead and the power cables must be made and

ing

3.4.1 Power

The rated conditions of operation for the motor are as shown on the nameplate. Within the limits, given below, of voltage and frequency variation from the nameplate values, the motor will continue to operate but with performance characteristics that may differ from those at the rated conditions：

+/- 10% of rated voltage

+/- 5% of rated frequency

+/- 10% combined voltage and frequency variation so long as frequency variation is no

more than +/- 5% of rated

ATTENTION！！！！

Operating the motor at voltages and frequencies outside of the above limits can result in both unsatisfactory motor performance and damage to or failure of the motor.

3.4.2 Main Lead Box

The main lead box furnished with the motor has been sized to provide adequate space for the make-up of the connections between the motor lead cables and the incoming power cables.

insulated in accordance with the best industry practices.

3.4.3 Grounding

Both fabricated steel motors and fan cooled cast frame motors are provided with grounding pads or bolts.

The motor must be grounded by a proper connection to the electrical ground system.

3.4.4 Rotation Direction

The rotation direction of the motor will be as shown by a nameplate on the motor, specification table or the outline drawing. The required phase rotation of the incoming power for this motor rotation may also be stated. If either is unknown, the correct sequence can be determined by the following method.

Make sure the motor is uncoupled and the non-reverse ratchet (if installed) has been disabled according to 5.6.3., start the motor and observe the direction of rotation. Allow the motor to achieve full speed before disconnecting it from the power source. Refer to the operation section of this manual for information concerning initial start-up. If resulting rotation is incorrect, it can be reversed by interchanging any two (2) incoming cables.

3.4.5 Auxiliary Devices

Auxiliary devices such as resistance temperature detectors, thermocouples, thermoguards, etc., will generally terminate on terminal blocks located in the auxiliary terminal box on the motor. Other devices may terminate in their own enclosures elsewhere on the motor. Such information can be obtained by referring to the outline drawing. Information regarding terminal designation and the

Addendum A

During and immediately after measuring, the terminals must not be touched as they

nected and there are no moving

connection of auxiliary devices can be obtained from auxiliary drawings or attached nameplates.

If the motor is provided with internal space heaters, the incoming voltage supplied to them must be exactly as shown by either a nameplate on the motor or the outline drawing for proper heater operation.

ATTENTION！！！！

Caution must be exercised anytime contact is made with the incoming space heater circuit as space heater voltage is often automatically applied when the motor is shutdown.

4. OPERATION

4.1 Examination Before Start

4.1.1 Wiring Check

For proper motor installation, ensure the wiring diagram is followed and the points below are adhered to:

(a) Make sure all wiring is correct.

(b) Ensure the sizes of cable wires are appropriate and all connections are well made for the

currents they will carry.

experience.

(d) Ensure the capacity of fuse, switches, magnetic switches and thermo relays etc. are appropriate

and the contactors are in good condition.

(e) Make sure that frame and terminal box are grounded.

(f) Make sure the starting method for the motor in question is followed correctly.

(g) Make sure switches and starters are set at the correct positions.

(h) Motor heaters must be switched off when the motor is running.

4.1.2 Measurement of Insulation Resistance

may carry dangerous residual voltages. Furthermore, if power cables are connected make sure that the power supplies are clearly discon parts.

(a) For rated voltage below 1000V, measure with a 500VDC megger.

For rated voltage above 1000V, measure with a 1000VDC megger.

(b) In accordance with IEEE 43-2000, there are three recommendation minimum insulation

resistance values. These values corrected to 40℃ are：

(1) kV+1 in Megohms for most windings made before 1970, all field windings and windings not

otherwise described.

(2) 100 Megohms for most DC armatures and AC windings built after about 1970 with form

wound coils.

(3) 5 Megohms for machines with random wound stator coils and for form wound coils rated

below 1kV.

ATTENTION！！！！

After measurement the winding must be grounded or shunted to discharge residual voltages.

moisture, drying the winding through the proper application of heat will normally increase the insulation resistance to an acceptable level. The following are several accepted methods for applying heat to a winding：

(1) If the motor is equipped with space heaters, they can be energized to heat the winding.

(2) Direct current (as from a welding equipment) can be passed through the winding. The total

current should not exceed approximately 20% of rated full load current. If the motor has only three leads, two must be connected together to form one circuit through the winding. In this case, one phase will carry the full applied current and each of the others, one-half each. If the motor has six leads (3 mains and 3 neutrals), the three phases should be connected into one series circuit.

Ensure there is adequate guarding so live parts cannot be touched.

(3) Heated air can be either blown directly into the motor or into a temporary enclosure

surrounding the motor. The source of heated air should preferably be electrical as opposed to fueled (such as kerosene) where a malfunction of the fuel burner could result in carbon entering the motor.

ATTENTION！！！！

Caution must be exercised, when heating the motor with any source of heat other than self contained space heaters, to raise the winding temperature at a gradual rate to allow any entrapped moisture to vaporize and escape without rupturing the insulation. The entire heating cycle should extend over 15-20 hours.

Insulation resistance measurements can be made while the winding is being heated. However, they must be corrected to 40℃ for evaluation since the actual insulation resistance will decrease with increasing temperature. As an approximation for a new winding, the insulation resistance will be approximately halved for each 10°C increase in insulation temperature above the dew point temperature.

(d) Should the resistance fail to attain the specified value even after drying, careful examination

should be undertaken to eliminate all other possible causes, if any.

4.1.3 Power Source

Addendum A

(a) Ensure the capacity of the power source is sufficient.

(b) Ensure the supply voltage and frequency ratings are identical to those on the nameplate.

should be balanced.

4.1.4 Bearing Lubrication

(a) For oil lubricated bearing motors, the oil reservoir must be filled with oil to the correct level. On

self-lubricated bearings, the standstill oil level will be at the center of the oil gauge. The proper oil is a rust and oxidation inhibiting, turbine grade oil. Refer to the lubrication nameplate for the recommended viscosity.

(b) Motors which are supplied with provision for flood lubrication have an inlet regulator to meter

the oil flow to the bearing. Refer to the outline drawing for this accessory. If the supply oil quantity does not match that stated on the outline, the oil regulator must be adjusted to the specified flow rate. In line with operation conditions (degree of contamination of the oil) filters must be cleaned according to the instructions of the manufacturer. The recommendation mesh size of the filters is 15~20μm.

Oil inlet temperature：

Normal Alarm Trip

20℃ (70℉) ~ 49℃ (120℉) 60℃ (140℉) 65℃ (150℉)

undertaken before operation to prevent bearing damage due to dry friction. The oil level should be kept at the center of the oil gauge. If necessary, drain some oil after refilling.

(d) Grease lubricant type

(1) The bearings have been well greased at factory before delivery. However, regreasing is

required if a significant period has elapsed between manufacture and use or in storage. Fill new grease until it overflows and the old grease is entirely replaced.

(2) Unless otherwise specified and shown on nameplate, ExxonMobil Polyrex EM is the

standard applied to TECO-Westinghouse motors.

(3) If roller bearing is used, add a small amount of grease if abnormal sound occurs in the

bearings. If this sound, disappears temporarily after regreasing, it is a normal condition and can operate as it is, as long as the temperature rise of the bearing is normal.

4.1.5 Cooling Water for the Cooler on Water-Cooled Motors

Make sure the quality, volume and inlet temperature of cooling water for the motors are normal before the machine is in operation.

Water：General tower water or industrial water, the suspended solid shall be below 20μm/l Volume：Please see outline drawing Inlet temperature：Normal below 30℃ (86℉)；above 5℃ (41℉)

Alarm Trip

35℃ (95℉) 40℃ (104℉)

Special temperature settings will be noted in outline drawings.

The keys fitted to the shaft extensions are held by plastic tape only to prevent them

falling out during transportation or handling. The shaft key shall be removed to

being

4.1.6 For Motors Equipped with Independent Force-Ventilating Blower Unit

(a) Ensure the voltage and frequency of the power source are identical to the ratings shown on

blower motor name plate.

(b) Ensure the wiring to blower motor is according to the connection diagram.

(d) Ensure the cooling air flow direction is correct. Refer to motor outline for cooling air flow

direction.

(e) Blower motor should be started prior to operating the main motor.

(f) Do not switch off the blower motor immediately after the main motor is shut off. It must be left

running for 15 minutes after the main motor is shut down.

(g) For small blower motor, double shield and pre-lubricated ball bearings are used and

re-lubrication is not necessary.

4.1.7 Remove All Locks

ATTENTION！！！！

Make sure all locks which fasten the movable parts of the motor during transportation are dismantled and removed so the shaft can rotate freely.

4.1.8 Clean Before Starting

ATTENTION！！！！

Ensure there are no foreign objects or tools inside the motor before starting.

4.1.9 Transmission System Check

Make sure the transmission system, including belts, screws, bolts, nuts and set pins are in good condition.

from prevent it from flying out when the motor is operated prior to the couplings fitted to the shaft extension.

4.1.10 Test Run

Make sure the items above are examined. Test the motor running with or without load. Record and check according to the statement of 5.8 "Records of operation and maintenance" at 15 minute intervals during the first three hours of operation. Then regular examinations should take place at longer intervals. If everything goes well, the motor can be classified as "in good order".

ATTENTION！！！！

To avoid the abnormal bearing temperature and vibration level increases, it is not recommended to run a vertical high thrust motor continuously without load.

Addendum A

4.2 Starting Operation

4.2.1 Starting Load

Initially run the motor unloaded prior to coupling to the driven machine. Unless otherwise specified, a motor usually starts with light load which is then gradually increased proportional to the square of speed and at last reaches 100% load at full load speed.

4.2.2 Starting

Too frequent starts can harm the motors. The following restrictions should be observed：

(a) Motor can be restarted should the initial start fail. Two starts are generally permissible when the

motor is cold.

(b) Motor can be started only once when it is at normal running temperature.

restrictions should be noted：

(1) Let the motor cool down for 60 minutes before restarting, fully loaded. (2) Let the motor cool down for 30 minutes before restarting, unloaded. (3) Two inching starts can be regarded as one normal start.

ATTENTION！！！！

If the motor rotor fails to start turning within one or two seconds, shut off the power supply immediately. Investigate thoroughly and take corrective action before attempting a restart.

Possible reasons for not starting are：

(1) Voltage drop at the motor terminals is more than allowed (look to confirmed data sheet).

(2) The counter torque is too large to accelerate the rotor.

(3) The driven machine is stuck, jammed or blocked.

(4) The electrical connections have not been made according to drawings and standards.

(5) One phase is missing or single phase power has been applied.

(6) Any combination of the above.

4.2.3 Rotating Direction

(a) Most TECO-Westinghouse motors can be operated in bi-directional rotation. However, when

some special types, such as high speed 2P, certain large capacity motors, those with a non-reverse ratchet etc. should rotate in one direction, please ensure the rotation is in conformity with the directional arrow-mark shown on the attached nameplate.

(b) To reverse a bi-directional motor, cut the power and wait until the motor stops. Then interchange

any two of the three phases.

4.2.4 Power Source, Voltage, Current

(a) Ensure the voltage and frequency of the power source are identical to the ratings shown on the

nameplate.

(b) Voltage variation should be confined to ±10% of the rating and the three phase voltages should

be in full balance.

average values.

4.2.5 Power Source, Frequency

The variation of the frequency should be confined to ±5% of the rating. The aggregate variation of voltage and frequency should be confined to ±10% of the absolute value of the ratings.

4.2.6 Starting Time and Unusual Noises

ATTENTION！！！！

Starting time is longer for the motors with large inertia. However, if starting time is longer than usual or if there is difficulty in starting, or there is abnormal noise, do not run the motor and refer to TECO-Westinghouse.

4.2.7 Bearing Temperature Rise

Following the initial start-up, the bearing temperatures should be closely monitored. The rise rate of bearing temperature is more indicative of impending trouble than is the actual temperature.

ATTENTION！！！！

If the rise rate of the temperature is excessive; the motor exhibits excessive vibration and/or unusual noise, shut down the motor immediately. Before starting up the motor again a thorough investigation must be made to determine the cause.

If the bearing temperature rise and motor operation appear to be normal, operation should continue until the bearing temperature is stabilized.

Recommended limits on bearing temperature are as follows：

Alarm Trip

95°C (203°F) 100° C (212°F)

When special synthetic lubrication oil was used under high ambient temperature case, such as 50~55℃, above temperature setting could by adjusted to alarm 110℃ & trip 115℃ after checking with factory engineers.

Addendum A

1200

0.15 (3.8)

900 15 0.12 (3.0)

720 12 0.09 (2.

ATTENTION！！！！ (For sleeve bearing)

(1) Flood lubrication sleeve bearings without external lubrication supply, the bearing

temperature must not be allowed to exceed 85

(2) Self-lube bearing or self-lube with water cooled, the rate of temperature rise should be

from 11K to 14K for the first ten (10) minutes after starting up and approximately 22K at thirty (30) minutes. The rate of bearing temperature rise is a function of the natural ventilation and operating conditions.

(3) When the rate of bearing temperature rise is less than

bearing temperature is considered to steady conditions.

(4) If the total bearing temperature exceeds 95

immediately and a thorough investigation must be made to determine the cause.

℃℃℃℃

in total.

±±±±

1K per (30) minutes, the

℃℃℃℃

, the motor should be shut down

ATTENTION！！！！

If the rise rate of the temperature is excessive; the motor exhibits excessive vibration and/or unusual noise, shut down the motor immediately. Before starting up the motor again, a thorough investigation must be made to determine the cause.

4.2.8 Noise and Vibration

ATTENTION！！！！

Any abnormal noise or vibration should be immediately investigated and corrected. Increased vibration can be indicative of a change in balance due to mechanical failure of a rotor part, a stator winding problem or a change in motor alignment.

(a) NEMA MG1, vibration limits at no load

Unfiltered Vibration Limits

Speed, rpm Rotational

Frequency, Hz 3600 60 0.15 (3.8) 1800 30 0.15 (3.8)

600 10 0.08 (2.0)

Velocity, in./s peak

(mm/s)

(b) ISO 10816, overall vibration severity chart for customer’s reference

4.2.9 Recommended Winding Temperature Settings

An electric motor normally has built in “over temperature protection devices” such as thermistors and RTD’s. They are set to trip at levels dependent upon the Class of Insulation of the motor windings. Motors designated Class F insulation have an allowable total temperature of 155°C in total. For those motors, the recommended alarm and trip settings are as below:

Alarm Trip

140°C (284°F) 155°C (311°F)

4.2.10 Additional Points to Note

(a) The motor characteristic data includes values for the acceleration and safe stall times, when

specified by the customer. If the motor fails to reach full speed, shut off the power immediately. Investigate thoroughly and take corrective action before attempting to restart.

(b) Each start of an induction motor subjects the motor to full inrush current with resulting heating

of the stator and rotor windings. Each acceleration and repeated start can produce more heat than that produced and dissipated by the motor under full load.

The starting duty for which the motor is designed is shown by a nameplate mounted on the motor and must not be exceeded, if long motor life is expected. Abnormally terminal voltage drop and/or excessive load torque during motor start-up can cause extended acceleration time during which rotor speed is reduced and ventilation is minimized. This can cause rotor destroying or can lead to extreme shortening of the rotor life.

an ambient temperature. If there is a service factor, it is also shown.

If the motor does not have stator winding temperature detectors and abnormal winding temperatures (as might be indicated by high discharge air temperature, odor, etc.) are suspected, the motor should be shut down immediately and an investigation made before further operation is attempted.

Addendum A

Some testing, such as insulation resistance, usually requires the motor to be stopped

5. MAINTENANCE

5.1 Major Points in Regular Inspection and Maintenance

Maintenance and repairs must only be carried out by properly trained personnel.

and isolated from power supply(ies).

Routine inspection and maintenance are usually performed visually, audibly, by odor, and by means of simple meters.

High temperatures may arise under normal operating conditions on the motor surfaces, so touching should be prevented or avoided. Keep away from moving and live parts. Unless deemed necessary, do not remove guards while assessing the motor.

Timely replacement of worn parts can assure longevity and prevent breakdown.

Routine and regular inspection and maintenance are important in preventing breakdown and lengthening service life.

Owing to the varied time and circumstances in which motors are used, it is difficult to set the items and periods for regular inspection and maintenance. However, as a guide, it is recommended to be performed periodically according to factory maintenance program. Generally, the inspection scope is determined by the following factors:

(a) Ambient temperature and ambient conditions (dust, humidity, other contamination). (b) Starting and stop frequency. (c) Troublesome parts usually affect motor operation. (d) Easily worn parts (ground brushes). (e) The importance of motors in the operational system should be duly recognized. Therefore,

regular inspection and maintenance will prolong the life of the motor, especially when it is operating in severe conditions.

5.2 Motor Windings

(a) Measurement of insulation resistance and standards to determine quality of insulation resistance,

please refer to measures stated in 4.1.2 "Measurement of insulation resistance".

(b) Inspection of coil-ends:

(1) Grease and dust accumulated on coils may cause insulation deterioration and poor cooling

effect.

(2) Moisture must not accumulate. Keep coils warm when motor is not in use (use space heater,

if it’s installed).

(3) Discoloring. This is mainly caused by overheating.

(d) Ensure the binding at the coil end is in its normal position.

Adequate ventilation must always be provided in any area where solvents are being

used to avoid the danger of fire, explosion or health hazards. In confined areas (such

an air line respirator, a hose mask or a

contained breathing apparatus. Operators should wear goggles, aprons and

suitable gloves. Solvents and their vapors should never be exposed to open flames or

5.3 Clean the Interior of the Motor

(a) After a motor has been in operation for some time, accumulation of dust, carbon powder and

grease etc., on the inside is unavoidable, and may cause damage. Regular cleaning and examination is necessary to assure top performance.

(b) Points to note during cleaning:

(1) If using compressed air or a blower:

a) Compressed air should be free of moisture. Be sure, that the dust and other materials can

come out of motor housing, iron core and windings.

b) Maintain air pressure below 4 kg/cm2, since high pressure can cause damage to coils.

(2) Vacuum

Vacuum cleaning can be used before and after other methods of cleaning, to remove loose dirt and debris. It is a very effective way to remove loose surface contamination from the winding without scattering. Vacuum cleaning tools should be non-metallic to avoid any damage to the winding insulation.

(3) Wiping

Surface contamination on the winding can be removed by wiping using a soft, lint-free wiping material. If the contamination is oily, the wiping material can be moistened (not dripping wet) with a safety type petroleum solvent.

In hazardous locations, a solvent such as inhibited methyl chloroform may be used, but must be used sparingly and immediately removed. While this solvent is non-flammable under ordinary conditions, it is toxic and proper health and safety precautions should be followed while using it.

ATTENTION！！！！

Solvents of any type should never be used on windings provided with abrasion protection. Abrasion protection is a gray, rubber-like coating applied to the winding end-turns.

as pits) each operator should be provided with self-

sparks and should always be stored in approved safety containers.

Addendum A

because any dislodged dirt or debris can be drawn directly into the motor.

(4) Keep core ducts completely clean. The difference in temperature rise could be around 10℃

before and after cleaning.

(A) Riveted

Core ducts

(B) Welded with riveting films

Fig. 14

5.4 Clean the Exterior of the Motor

(a) On open ventilated motors, screens and louvers over the inlet air openings should not be allowed

to accumulate any build-up of dirt, lint, etc. that could restrict free air movement.

ATTENTION！！！！

Screens and louvers should never be cleaned or disturbed while the motor is in operation

(b) If the motor is equipped with air filters, they should be replaced (disposable type) or cleaned and

reconditioned (permanent type) at a frequency that is dictated by conditions. It is better to replace or recondition filters too often than not often enough. The Permanent type air filters can be cleaned with fresh water, make sure to let them dry before reinstalling.

Disposable type filter fitted into two filter supports. Permanent type filter.

Fig. 15 Fig. 16

considerations. The external fan must be cleaned thoroughly since any dirt build-up not removed can lead to unbalance and vibration. All of the tubes of the air-to-air heat exchanger should be cleaned using a suitable tube brush having synthetic fiber bristles (not wire of any type).

(d) It is important to keep the external surfaces of any motor clean and free from buildup of dirt and

debris as this can function as an insulating blanket causing the motor to overheat drastically and could reducing the life of the motor. Methods of cleaning external surfaces are: Scraping, brushing, dry ice blasting etc.

5.5 Maintenance of anti-friction bearing

5.5.1 Frequency of relubrication

The life of grease varies greatly as a result of types of model, revolution speed, temperature, operational conditions etc. It is, therefore, impossible to be precise about replenishment intervals. However, for normal direct coupling transmission, the periods shown in Table 1 may be used as a guide.

Remarks:

(a) The periods shown in Table 1 should be halved where bearings are used for belt drive

and/or in dirty, high ambient temperature or high humidity environments.

(b) Please refer to the lubrication nameplate, if attached to the motor.

(d) If the periods referred to Table 1 for drive-end bearing and opposite drive-end bearing are

different, for the convenience of maintenance operation, one could take the shorter one for re-greasing schedule.

5.5.2 Kinds of grease

ExxonMobil Polyrex EM grease is standard for TECO-Westinghouse motors except some special models for which special grease will be shown on the lubrication nameplate. Please use identical grease or its equivalents when maintaining.

ATTENTION！！！！

Do not mix different kinds of grease. Mixing grease with different types of thickeners may destroy its composition and physical properties. Even if the thickeners are of the same type, possible differences in the additive may cause detrimental effects.

Table 1

Bearing

number 62XX 63XX 72XX 73XX

Bearing

number NU2XX NU3XX

Bearing

number 222XX 223XX

Addendum A

600 RPM

6206~10

12 2000Hrs 13 14 1000Hrs 15 16 720 Hrs 17 2000Hrs 18 3000Hrs 500 Hrs 20 22 24 1500Hrs 26 28 2000Hrs 1000Hrs 30 32 500 Hrs 34 1500Hrs 36 38 2000Hrs 1000Hrs

NU214

15 2000Hrs 16 17 18 3000Hrs 1500Hrs 20 22 1000Hrs 24 26 2000Hrs 28 500 Hrs 30 32 34 2000Hrs 1000Hrs 36 38 2000Hrs 40 44 1000Hrs 500 Hrs 48 1000Hrs

600 RPM

22220 300Hrs

22 24 1000Hrs 500 Hrs 26 28 30 300 Hrs 32 500 Hrs 34 36 38 500 Hrs 40 300 Hrs 44 48 300 Hrs

600 RPM

720 RPM

750 RPM

900 RPM

1000

RPM

1000

RPM

1000

RPM

1200

RPM

1200

RPM

1200

RPM

1500

RPM

1500

RPM

1500

RPM

1800

RPM

1800

RPM

1800

RPM

3000

RPM

3600

RPM

If relubrication is to be performed when the motor is running, stay clear of rotating

5.5.3 Grease quantity

The amount of grease per replenishment depends on the type, size and construction of the bearings. The minimum amount for replenishment of each bearing is shown in Table 2. This replenishment

amount is also the amount used at the time the motor is initially started.

Table 2

Bearing No. Amount of

replenishment 62XX 72XX

NU2XX 222XX

6209~6210 30g 63XX

6212 40 6312 60 6213 50 6313 80 6214 50 6314 80 6215 60 6315 100 6216 60 6316 100 6217 80 6317 120 6218 80 6318 120 6220 100 6320 160 6222 120 6322 220 6224 120 6324 270 6226 140 6326 300 6228 160 6328 400 6230 180 6330 450 6232 200 6332 500 6234 250 6334 600 6236 300 6336 700 6238 350 6338 800 6240 400 6340 900 6244 450 6344 900 6248 500 6348 900

Bearing No. Amount of

replenishment

6308~6311 40g

73XX NU3XX 223XX

Suggested fill desirable, however, regrease until it replaces and the old grease entirely. The temperature of the bearing will initially increase because of the excess grease. After a few hours, the excess grease will be expelled through the exit tube and the bearing temperature will return to normal.

See Additional Greasing Information in Addendum A.

5.5.4 Re-Greasing

parts.

It is advisable to re-grease while the motor is running to allow the new grease to be evenly distributed inside the bearing.

Before re-greasing, the inlet fitting should be thoroughly cleaned to prevent any accumulated dirt from being carried into the bearing with the new grease. The outlet or grease drain should be opened to allow the proper venting of old grease.

Use a grease gun to pump grease through grease nipple into bearings slowly. After re-greasing, operate the motor for 10-30 minutes to allow any excess grease to vent out.

Addendum A

5.5.5 Oil Re-lubrication (For oil lubrication types only)

Maintain proper lubrication by checking the oil level periodically and adding oil when necessary. Because of the initial clearing action of the bearing and the expansion of the oil as it comes up to operating temperature, the oil level will be higher after the motor has been in operation for a while than it is with the motor at standstill.

Overfilling should be avoided not only because of the possibility that expansion may force the oil over the oil sleeve and on to the rotor, but also because too high an operating oil level prevents the bearing from clearing itself of excess oil. The resultant churning can cause extra loss, high temperatures, and oxidized oil. If, the oil level goes above the maximum shown on the sight gauge during operation, drain enough oil to bring the level back within the recommended operating range.

Do not permit the operating level to fall below the minimum shown on the sight gauge.

ATTENTION！！！！

Should it ever become necessary to add excessive amount of make-up oil, investigate immediately for oil leaks.

Change the oil at regular intervals. The time between oil changes depends upon the severity of operating conditions and, hence, must be determined by the motor user. Two or three changes a year is typical, but special conditions, such as high ambient temperature, may require more frequent changes. Avoid operating the motor with oxidized oil.

Use only good quality, oxidation-corrosion-inhibiting turbine oils produced by reputable oil companies. The viscosity of the oil to be used depends upon the type and size of the bearing, its load and speed, the ambient temperature, and the amount and temperature of the cooling water (if used). The lubrication nameplate or instructions with each motor specifies the viscosity range of oil suitable for average conditions. The usual oil viscosity recommendations are summarized in Table 3. Operation in ambient temperatures that are near or below freezing may require preheating the oil or the use of special oil. Whenever the motor is disassembled for general cleaning and reconditioning, the bearing housing may be washed out with a suitable cleaning solvent. Be sure that the oil metering hole is clear, and then dry the housing thoroughly before reassembly, and ensure all traces of cleaning solvent has been removed.

Table 3 oil viscosity for vertical motors**

Bearing Type Oil viscosity Range of pole

Angular contact ball

(72XX，73XX)

Spherical roller

(293XX，294XX)

ISO VG32

(150 SSU/100℉)

ISO VG68

(300 SSU/100℉)

ISO VG68

(300 SSU/100℉)

ISO VG150

(700 SSU/100℉)

2 pole

4 pole and above

4、6

pole

8 pole and above

**Note: Where a lubrication nameplate is attached to the motor, use the lubrication oil it stipulates.

5.5.6 Cleaning and Installation of Bearings

(a) Apply the proper amount of grease to disassembled parts of the bearing after they have been

thoroughly cleaned with high quality cleaning oil. Then protect them from contamination before and during assembly.

(b) Bearing installation

ATTENTION！！！！

Before installing the bearings, make sure that the shaft mounted parts behind the bearings are in place before installation.

Since the bearing is a high precision component, it is important to avoid ingression of dust and foreign matter and hammering during cleaning and installation. Be extremely careful and ensure clean conditions exist during installation and assembly.

ATTENTION！！！！

The best way for bearing installation is heat shrinking. Knocking and hammering during installation should be absolutely avoided.

The bearing should be heated in a bath of clean oil to a temperature of approx. 80℃ or using an induction bearing heater with a temperature probe. After warming, slide the bearings in place quickly and nimbly so that it does not shrink onto the shaft before being fully in position. Take care to keep the bearing straight during installation and ensure it is properly seated against the shoulder. Maintain pressure against the shoulder for several seconds to ensure it does not slide back from the shoulder, or become “cocked” on the journal.

Grease the bearing after the temperature returns to normal, and then reassemble the motor.

5.6 Maintenance of Non-Reverse Ratchet Mechanism

5.6.1 Non-Reverse Ratchet Mechanism

In the pump piping system, a check valve and a stop valve should be installed in the discharge line. The check valve, placed between the pump and the stop valve, is to protect the pump from reverse flow and excessive back pressure. The stop valve is used in priming, starting and when shutting down the pump. It is advisable to close the stop valve before stopping the pump. This is especially important when the pump is operated against a high static head.

TECO-Westinghouse vertical high thrust motors are equipped with non-reverse ratchet (N.R.R.) mechanism only when requested by the pump manufacturer. The NRR may consist of a pin type assembly – see illustration (A), or a ball type assembly – see illustration (B). Typical construction of N.R.R. mechanism is shown as Fig.19 below.

Addendum A

(A) Pin type N.R.R.

ITEM NAME

104 RATCHET

214 BEARING SEAT

402 EXTERNAL FAN

704 RATCHET PIN CARRIER

816 RATCHET PIN(BALL)

(B) Ball type N.R.R.

Fig. 19

The N.R.R. mechanism keeps the pump and motor from rotating in the reverse direction. Thus prevents damage from over speeding and damage to water-lubricated pump shaft bearings when, on shutdown, the falling water column tends to drive the pump in the reverse direction.

In normal operation, the ratchet pins or balls are lifted by the ratchet teeth and are held clear by centrifugal force and friction as the motor comes up to speed. When power is removed, the speed decreases and the pins or balls fall. At the instant of reversal, a pin or ball will catch in a ratchet tooth and prevent backward rotation.

5.6.2 Service Life

The service life of ratchet pins or balls depends not only on the reverse shock load between the pin or ball and ratchet tooth when pump stopped but also the frequency of pump starting and stop in application.

Over time pins specifically can become deformed due to this reverse shock load, causing the up and down motion of ratchet pins to become sluggish or jammed and unusual noises will arise.

The recommended replacement period for these ratchet pins is every three (3) years. If the reverse shock load is greater than 30% of motor rated torque or the starting frequency is more than twice

per day, then the replacement period is to be halved.

ATTENTION！！！！

The check valve and stop valve in the discharge line should be regularly inspected and maintained to ensure the normal operation of these valves. This is important to protect the pump and motor from damage and increase the service life of the N.R.R. mechanism.

5.6.3 Disable the N.R.R. mechanism

Motor with N.R.R. mechanism only can run in uni-direction. The motor can change to suitable for bi-directions by disabling the N.R.R. mechanism. The N.R.R. mechanism can be disable in the following manner:

(a) Remove the fan cover or weather cover on the top of motor.

(b) Remove the external fan or cover on the top of ratchet pin carrier.

(d) Replace the external fan or cover

(e) Replace the fan cover or weather cover

ATTENTION！！！！

The N.R.R. mechanism is refine-balanced by adding weights to the external fan or cover. Before removing the external fan or cover, it should be marked and replaced in the same position to retain proper balance.

Addendum A

Brackets

friction

Dismantling brackets

Assembly

5.7 Dismantling and Assembly Procedure

5.7.1 Dismantling and Assembly Procedure

Please see the drawing in Appendix 4.

w/antibearing TEFC

(一) Upper bearing

1. Remove the fan cover (01) & external fan

(02).

2. Remove LK nut (18) and pull out ratchet

pin carrier (17) .

3. Remove ratchet (16),then you can pull out

bearing seat(15).

4. Take off bearing(13) from bearing seat by

Remove outside retaining ring.

(二) Lower bearing

1. Remove LK nut(18) and out bearing

cover-outer(21) and grease flinger(20) ,then remove flange bracket(11) bolts and pull out

2. Pull out from bearing cover-inner(22),then

lower bearing come out from shaft.

1. Check the bearing assembly. Keep each part very clean.

2. Tighten securing bolts by reverse step of dismantling.

3. Refer to 5.7.2 to adjust the endplay.

5.7.2 Endplay Adjustment

Endplay is defined as the total axial float of the rotor. When motor is dismantled for any reason, the rotor endplay must be adjusted. During reassemble the bearing, it is necessary to make sure that endplay must be within the proper range.

In order to adjust the endplay setting correctly, a dial indicator should be used to read the axial float of rotor. The upper bearing lock nut should be turned until no further upward movement of the shaft is indicated. Then loosen the lock nut until 0.005” to 0.008” endplay is shown. Finally, lock the lock nut with lock washer.

5.8 Records of Operation and Maintenance

5.8.1 Objective

(a) Fully understand the purpose of the motors in operation and discover any abnormalities in

advance.

(b) Prevent negligence and omissions in maintenance.

(d) Know the lifespan of the depreciating parts to determine the amount of spare parts to be kept.

(e) Plan the amount of spare motors and replacement parts to repair the motors in operation

according to actual situation and schedule.

5.8.2 Records of Operation

(a) It is advisable to use a primed form with yes/no or right/wrong selections for the operator to

easily fill out.

(b) Principle contents：

(1) Serial number of machine. (2) Load machine type. (3) Models and specifications of motors. (4) Three-phase voltage. (5) Three-phase current. (6) Temperature of a motor and bearings when in operation. (7) Ambient temperature, humidity, weather, date and time. (8) Time of start and stop. (9) Special remarks. (10) Operator’s name.

5.8.3 Records of Maintenance

(a) It is advisable to use a primed form with yes/no or right/wrong selections for the operator to

easily fill out.

(b) Principle contents：

(1) Serial number of machine. (2) Load machine type. (3) Models and specifications of motors. (4) Ordinary operating conditions and data. (5) Cause, date and disposition measures at breakdown.

Addendum A

Power

off Consult power company

No fuse

Install fuse

h trips off,

slow start with

Incorrect wiring

Check wiring according to nameplate

Windings grounded

Factory repair

Poor contact of circuit switches

Check and repair

Short circuit of starting switches

Check and repair

starting

off of

k circuit capacity and reduce

Check circuit capacity and power

matter in the

Correct insulation class F, or lower

Friction between rotor and stator

Factory repair

(6) Quantity and name of replaced spare parts. (7) Date of maintenance and initial operation. (8) Items and date of maintenance. (9) Special remarks. (10) Name of maintenance personnel.

6. FAULT FINDING AND RECOGNITION

Type of

Breakdown

Symptoms Possible causes Remedies

Switch-off Switch-on

Motionless and

soundless

Broken wiring Check wiring and repair Broken lead Check wiring and repair Broken windings Check windings and repair Short circuit of circuit switches Check circuit switches and replace

Fail to start

without load

after start

Fuse blowing. (Automatic switc

electromagnetic noise)

Fuse blowing.

Fail to restart

due to trip-

automatic switch

Overheating

motor

Poor contact at terminals Lock tightly

Broken windings Factory repair

Broken wiring Check and repair Poor contact of starting switches Check and repair

Incorrect connections of switches Insufficient capacity of fuse Replace fuse if wiring permits Overload Lighten load High load at low voltage Chec

Overload or intermittent overload Lighten load Under-voltage

Over-voltage Check power source Ventilation duct clogged Remove the foreign

Ambient temperature exceeds 40°C

Fuse blown (Single-phase rotating) Install the specified fuse Poor contact of circuit switches Check and repair Poor contact of circuit starting switches Unbalanced three-phase voltage Check circuit or consult power

Connect according to nameplate

load

source

duct

ambient temperature.

Check and repair

company

Breakdown

Single

phase rotating

Check circuit and repair

High load

Lighten load

Electromagnetic

noise induced by

Loose belt sheave

Adjust key and lock the screw

Electromagnetic

Unbalanced rotor

Factory repair

Brok

en fan blade

Replace fan

belt sheaves

alignment

and driven equipment

Kinds of

Symptoms Possible causes Remedies

after start

Noise

Speed falls

sharply

Switch overheat

Bearing

overheating

electricity

Bearing noise

Mechanical

noise caused

by machinery

vibration

Voltage drop Check circuit and power source Sudden overload Check machine

Insufficient capacity of switch Replace switch

Lack of oil Add oil Lack of grease Add grease Misalignment between motor and machine shafts Over speed of bearing outer-ring Adjust bracket High bearing noise Replace the damaged bearing Occurrence from its first operation May be normal Sudden sharp noise and smoking Short circuit of windings

Churning sound May be normal noise from grease

Rattling noise as result of poor lubrication Larger noise

Loose coupling or skip Adjust the position of couplings, lock

Loose screw on fan cover Lock fan cover screw tightly Fan rubbing Adjust fan position Rubbing as a result of ingression of foreign matters Wind noise Noise induced by air flowing through

Induced by conveyance machine Repair machine Short circuit of windings Factory repair Open circuit of rotor Factory repair

Re-align

Should be repaired at factory

circulating through the bearing Add Grease

Inspect cause -replace the damaged bearing

key and screw

Clean motor interior and ventilation ducts

ventilation ducts

Vibration

Remarks:

connection switch etc.

Unbalanced fan Factory repair

Unsymmetrical centers between

Mechanical

vibration

(1) Circuit switches: These include knife switches, electromagnetic switches, fuse and other

(2) Starting switches: These include Delta-Star starters, compensate starters, reactance starters, resistor starters, starting controllers etc.

Central points of couplings not in

Improper mounting installation Check mounting and alignment Motor mounting bed is not strong enough Mounting bed vibration caused by near machines

Align central points

Adjust the alignment between motor

Reinforce mounting bed

Eliminate the vibration source near motor

Addendum A

Material

Die-casting frame

Steel plate frame Induction

7. RECYCLE

7.1 Introduction

TECO-Westinghouse obeys its environmental and protection policies. TECO-Westinghouse has

always been committed, through the use of recyclable and life cycle analysis of the results, to

improve environmental protection products. Products, production processes or flow designs all

reflect the concept of environmental protection. TECO-Westinghouse’s environmental management

system through the ISO 14001 certification is used to implement an environmental policy tool.

The following guidelines only deal with the suggestions of environmental treatment on the

equipments. Customer shall be responsible for compliance with local regulations. This manual may

not include some of the customer's specific content. Project document provides additional

documentation.

7.2 Materials Average Content

When producing electrical equipments, the average material content used are as follows:

Induction machinery

Steel 45 – 56 % 79 - 83 %

Copper 8 – 10 % 12 – 14 %

Cast iron 32 – 43 % 1 – 3 %

Aluminum 0 – 5 % 0 - 1 %

Insulation materials

Stainless steel Below 1 % Below 1 %

Other Below 1 % Below 1 %

7.3 Packing Materials Recycling

When the equipment arrives to the site/destination, the packing materials should be removed.

•

All wood-made packing materials can be burned.

•

The packing materials used in sea shipping (impregnated wood) if applicable, must be recycled

according to local regulations.

•

The plastic materials around equipments can be recycled.

•

The anticorrosive agent covering the surface of equipment can be cleaned by gasoline-based

cleaner or wipers. Treating the wipers must comply with local regulations.

1 - 2 % 2 – 4 %

Machinery

7.4 Disassembly of Equipment

Disassembling equipment is a basic operation because equipment is assembled by bolts. However,

due to the heavy weight of equipment, the operator must be required to have received training in

handling the transportation of heavy loads to avoid any danger.

7.5 Classification of Different Materials

7.5.1 Frame, Bracket (bearing housing), Cover and Fan

These parts are made of structural steel and can be recycled according to local regulations. All of

auxiliary equipment, cables and bearings must be removed before melting.

7.5.2 Parts with Electrical Insulation

The stator and rotor are the main part of machinery that include electrical material. Some auxiliary

parts also include similar materials and should use the same methods of disposal. These materials

include each insulator in outlet box, exciter, transformer with adjustable voltage and current

function, cables, wires, corona discharger and capacitor. Some parts are used for synchronous

machinery and some are used for other equipment.

All of these parts are in an inert state when equipments are completed.

Some parts (especially stator and rotor components) include a large amount of copper and can be

separated by appropriate heat treatment. The organic adhesive materials in insulation materials can

be gasified. In order to ensure proper gas combustion, burner should provide an appropriate

supplementary burner. In the combustion process of heat treatment, the following conditions are

recommended to minimize the material distributed processing:

Temperature of Heat treatment：380- 420°C （716- 788°F）

Duration：Processing object should be kept at that temperature for at least 5 hours when reaching to

90% of target temperature.

Supplementary gas combustion temperature for adhesives smoke begin between: 850-920 ° C

(1562-1688 ° F) Flow rate: adhesives smoke in the combustion chamber should be kept at least

three seconds.

Note: The distribution of substances include O2, CO, CO2, NOx, CxHy gas and micro-particles. The

user shall be responsible to make ensure that the process complies with local regulations.

Note: You should pay particular attention to thermal processes and heat treatment equipment

maintenance, so as not to cause a fire or create an explosion hazard. Since this work will use a

variety of devices, TECO-Westinghouse cannot provide a detailed maintenance guideline for

treatment process or equipment. Customers will be responsible for dealing with these issues.

7.5.3 Permanent Magnet

If permanent magnet synchronous machineries will be totally melted, it’s not necessary to deal with

the permanent magnets.

Addendum A

may interfere

other electrical or electromagnetic devices and components, such as

In order to achieve a more complete recovery and removal of equipment or if the rotor will be sent

out after recovery, we suggest doing permanent magnet demagnetization. Rotor can be heated in the

furnace until the temperature of a permanent magnet reaches 300 °C (572 °F) to achieve degaussing

purpose.

Opening or disassembly of permanent magnet synchronous machinery or removal of the rotor of such equipment will produce stray magnetic fields. This with or damage cardiac pacemakers, credit cards, etc.

7.5.4 Hazardous Waste

The grease in the oil lubrication system is hazardous waste and must be treated by local regulations.

7.5.5 Buried Waste

All insulation materials can be treated as landfill waste.

hecking

Checking

Description or

Method

Criteria or

otes

1. Bearing

Oil supply

Oil quantity

Check oil level from oil

n the middle of oil

sight

Oil ring rotation

Check oil ring from

Rotating s

moothly

oil accumulation on floor

End play

Axial

fluctuation

Inspect by eye.

The shaft shoulder

Noise

Ref to 4.2.9

Listen for unusual noise

Assess noise, stop and

Load

Check the value from

3. Cooler

Water supply

Water quantity

Check the water flow

The water flow rate and

Appendix 1. Daily Inspection

Point

Item

Oil leakage

Temperature Bearing temperature

Vibration Ref to 4.2.9 If the vibration level is

inspection parts

sight gauge.

Oil pressure (forced oil lubrication only)

(horizontal sleeve bearing only)

Shaft、labyrinth seal、piping connection、parting line of housing

detector

shaft

Magnetic center Inspect the magnetic

Check oil supply pressure gauge near inlet pipe or supply unit.

window at 12 o’clock.

Inspect by eye and touch by hand.

Check the value is the same as normal.

center pointer on drive end.

higher than normal, please measure the spectrum by instrument.

gauge. Within ±20% of

specified pressure.

Dampness around housing is normal. But

should be checked.

Recommendation： See 4.2.8

should not touch the liner.

3mm

Analyze the spectrum.

2. Stator Temperature Winding temperature detector

Voltage、current

4. Filter Dust or

pollution

5. Others Odor Windings &

Clean filter Clean by fresh water Clean filter

Bearings

Check the value is the same as normal.

control panel

relay or indicator & temperature.

Check winding and bearing temperature monitors

inspect if necessary

Recommendation： See 4.2.10 Voltage variation＜10% Current＜rated current

temperature limitations are shown on outline drawing.

Check load / cooling air flow, oil condition.

Appendix 2. Monthly Inspection

hecking

Checking

Description or

Method

Criteria or

otes

1. Bearing

Oil supply

Oil quantity

Check oil level from oil

n the middle of oil

parting

important to find the root

Check the water flow relay

Addendum A

Point

2. Stator Temperature Winding

3. Cooler Water

4.Coupling Appearance Bolts/nuts Inspect by eye and touch

5. Space

Heater

Item

Oil leakage

Appearance Bolts/nuts for

Resistance Winding 500VDC/1000VDC

supply

Resistance Heater wire 500VDC megger. Ref to “Operation” 4.1.2

inspection parts

Shaft、labyrinth seal、piping connection line of housing

temperature detector

bracket or frame etc.

Water quantity

、

gauge.

Inspect by eye and touch by hand.

Check the value if the same as normal.

Inspect by eye and touch by hand.

megger. Once every three months at least.

or indicator & temperature.

by hand.

gauge. If the oil quantity is low , please add oil and check for leaks

If oil is leaking, it is

cause.

Recommendation：See

4.2.10

Re-tighten all loose.

Ref to “Operation” 4.1.2 measurement of insulation resistance.

The water flow rate and temperature limitations are shown on outline drawing. Re-tighten all loose bolts.

measurement of insulation resistance.

tem C

hecking

Description

Regular

nspection

Removed for

Disassembly

Check and record the alignment for

(5) Anchor bolt,

Check if

there are

any parts loose.

(7) Shaft

Measure the shaft

vibration value

(9) Air gap

Measure this value and record

in 3

2. Sleeve

Sleeve

According to RENK

“

Instructions

(1) Winding

Use 500VDC/1000VDC megger to

(4) Coil

Check coil insulation material

for

(6) Terminal

Check for

oose

or damaged lugs

if any

Appendix 3. Regular Inspection

Point

(1) Vibration Measure and record the vibration

levels for reference

(2) Temperature Record bearing, winding &

ambient temperature for reference.

(3) Coupling Measure the mounting and shaft

1. Inspection before disassembly end dimensions. Check if any bolts

are loose. Check if there are any mounting hole, key & keyway deformation.

(4) Alignment

reference

mounting bolt & nut

(6) Adjusting

shims

vibration

(8) Foundation

level

Check condition of all nuts , bolts, Replace if defective.

Check if rusty, damaged and replace if damaged.

and record. Check for any deformation that

may have occurred.

places at least for each end.

bearing

for Maintenance and Inspection”.

inspection

resistance

(2) Winding

appearance

3. Stator inspection

(3) Coil end Check coils for loose blocking,

measure and record results. Check if any dust or oil

contamination on winding coil

lashings, end rings.

insulation

wear, discolouration or damage

(5) Cable lead Check if lead insulation broken,

cracked or damaged.

lug

or terminals.

(7) Coil wedge Check for loose or damaged slot

wedges.

(8) Air guide Check each bolt & nut to see

is loose.

In situ

Exterior

surface

inspection

○

In situ

Open

inspection

○

inspection

○

Addendum A

tem C

hecking

Description

Regular

nspec

tion

Removed for

Disassembly

inspection

(4) Vibration

Check

vibration

is normal

(6) Oil level

Check oil level.

Appendix 3. Regular Inspection (continue)

Point

In situ

Exterior

surface

inspection

(1) Rotor

4. Rotor

appearance

(2) Rotor bar Check for loose or damaged bars

Check if any dust or oil contamination is on rotor.

Check rotor bar end ring welds.

(3) Rotor core Check for loose or damaged

laminations.

5. Fan Fan Check welded portions for cracks, bolts & nuts, any built up dirt or rust.

(1) Winding

resistance

(2) Supply lead

6. Inspection before operation

connection

(3) Protection

relay

(4) Lubrication

oil

Use 500VDC/1000VDC megger to measure, record results.

Check all incoming supply leads correctly connected.

Check protection relay in normal operation.

Oil level at the middle of oil gauge. Oil inlet pressure correct and oil

○

drains smoothly.

(5) Alignment Check and record the alignment.

(6) Anchor bolt

& mounting

Check all mounting bolts are securely tightened.

bolt

(7) Driven

equipment

(8) Cooling

water

(1) Rotational

7. Inspection before starting

Check if all driven equipment is ready for operation.

Check cooling water flow rate & quantity. Check rotational direction.

○

direction

(2) Oil ring Check if oil ring runs smoothly.

(3) Noise Check there is no abnormal noise.

○ ○ ○

In situ

Open

inspection

○

○ ○ ○

inspection

○

○ ○

○

○ ○ ○

(5) Bearing

temperature

For test run, please keep monitoring for 2hrs at least.

(7) Current Make sure current is below rated

value shown on nameplate.

○

○ ○

○

○ ○

○

○ ○

Note

：：：：

(a) Disassembly inspection：removing the rotor to inspect the stator & rotor.

Recommendation：every four (4) years, but depends on operation environment conditions & machine type.

(b) Open inspection：inspect the maximum possible portions without removing rotor.

Recommendation：every two (2) years, but depends on operation environment conditions & machine type.

Recommendation：every year.

Addendum A

Appendix 4.Typical Motor Cross Sectional Drawings: SCIM, TEFC

Item Name Item Name

01 FAN COVER(N.D.E) 14 OIL SEPARATOR

02 EXTERNAL FAN 15 BEARING SEAT

03 VERTICAL PLASH COVER 16 RATCHET

05 COVER 18 LK NUT

06 INSULATION BRACKET

07 INNER FAN

08 HOOK

09 ROTOR

10 S CORE

11 FLANGE BRACKET

PLUG 17

RATCHET PIN OR BALL CARRIER

12 LOWER BEARING

13 UPPER BEARING

Appendix 4-1.Typical Motor Cross Sectional Drawings: SCIM, TEFC

Addendum A

Appendix 4-2.Typical Motor Cross Sectional Drawings

：：：：

SCIM, TEFC

Appendix 5.Typical Motor Cross Sectional Drawings

：：：：

ODP

Item Name Item Name

01 FAN COVER 13 FLANGE BRACKET

02 EXTERNAL FAN 14 AIR GUIDE

03 RATCHET 15 GREASE NIPPLE

04 PLUG

05 BRACKET

06 OIL GAUGE

07 WINDOW COVER

08 SCREWED GLOBE VALVE

09 S CORE

10 ROTOR 22 OIL DRAIN COVER ASSY

11 WINDOW 23 COUPLING

INNER FAN 24 LK NUT

17 OIL BAFFLE

18 COVER

19 UPPER BEARING

20 OIL SEPARATOR

BEARING SEAT

LOWER BEARING

Addendum A

Appendix 5-1.Typical Motor Cross Sectional Drawings

：：：：

ODP

Appendix 5-2.Typical Motor Cross Sectional Drawings

：：：：

ODP

Addendum A

Appendix 6.Typical Motor Cross Sectional Drawings

：：：：

SCIM, TEWC

Item Name Item Name

01 FAN COVER 12 LOWER BEARING

02 EXTERNAL FAN 13 OIL DRAIN COVER ASSY

03 OIL BAFFLE 14 LK NUT

05 BEARING HOUSING 16 RATCHET

06 BRACKET

07 SCORE

08 COOLER

09 ROTOR

COVER 15

17 BEARING SEAT

18 SPRING

19 OIL SEPARATOR

20 UPPER BEARING

FLANGE BRACKET 21 SCREWED GLOBE VALVE

GREASE PIPE

RATCHET PIN OR BALL CARRIER

Appendix 7. Typical Ball Bearing Construction Drawing

Item Name Item Name

1 Ball Bearing 6 Grease Nipple & Pipe

2 Grease Flinger-Inner 7 Shaft

3 Bearing Cover-Inner 8 Bracket

4 Grease Flinger-Outer

5 Bearing Cover-Outer

9 Dust Flinger

Please be noted：

1. Use sealing compound on screws (A) and the surface between parts (B).

2. In order to avoid abnormal bearing noise, please fill new grease as full as possible between races

during the change process of bearing.

Addendum A

Appendix 7-1. Typical Ball Bearing Construction Drawing

Appendix 8. Typical Roller Bearing Construction Drawing

Item Name Item Name 1 Roller Bearing 5 Bearing Cover-Outer 2 Grease Flinger-Inner 6 Grease Nipple & Pipe 3 Bearing Cover-Inner 7 Shaft 4 Grease Flinger-Outer 8 Bracket

Please be noted：

1. Use sealing compound on screws (A) and the surface between parts (B).

2. In order to avoid abnormal bearing noise, please fill new grease as full as possible between races

during the change process of bearing.

Addendum A

Appendix 9.Typical Ball Bearing with Insulation Bushing Construction Drawing

Item Name Item Name

1 Ball Bearing 7 Shaft

2 Grease Flinger-Inner 8 Bracket

3 Bearing Cover-Inner 9 Insulation Plate

4 Grease Flinger-Outer 10 Insulation Bushing

5 Bearing Cover-Outer

6 Grease Nipple & Pipe

11 Dust Flinger

Please be noted：

1. Use sealing compound on screws (A) and the surface between parts (B).

2. In order to avoid abnormal bearing noise, please fill new grease as full as possible between races

during the change process of bearing.

Appendix 10. Typical Thrust Bearing Assembly Drawing (Vertical Machine)

Item Name Item Name

1 Thrust Bearing 8 Ratchet Pin Carrier

2 Ball Bearing 9 Ratchet Pin or Ball

3 Spring 10 Lock Nut

4 Insulation Bushing

5 Oil Standpipe

6 Upper Bearing Runner

7 Non-Reverse Ratchet

11 External Fan

12 Oil Lever Gauge

13 Upper Bracket

Please be noted：

Use sealing compound on spigot of oil tank (A), between non-reverse ratchet (item 7) and upper

bracket (item 13).

Addendum A

Appendix 11. Shaft Earth Brush Assembly Drawing (TAC)

Item Name Item Name

010 Brush 030 Plain Washer

020 CR C SCREW 040 T Lock Washer

Appendix 12. Shaft Earth Brush Assembly Drawing (TECO)

Item Name Item Name

010 Support 060 Plain Washer

020 Hex Bolt 070 S Washer

030 S Washer 080 Hex Nut

040 Brush Holder 090 Brush Spring Assembly

050 Hex Bolt 100 Brush

Please be noted：

Directly connect grounding by a separate wire between one of M6 tap holes (A) on brush holder (item 040) and earth is highly recommended.

Addendum A

Appendix 13. Bolt Torque (kg-cm)

BOLD

SIZE

M4 0.7 25~34 10~13 8.4~11.3

M5 0.8 38~52 20~25 16.2~22.0

M6 1.0 68~97 40~50 28~38

M8 1.25 161~230 90~110 68~91

M10 1.5 288~416 180~230 125~183

M12 1.75 462~660 320~400 230~310

M16 2.0 1010~1440 800~1000 560~760

M20 2.5 2100~3000 1600~2000 1090~1470

M24 3.0 3800~5400 2800~3500 1870~2500

M30 3.5 8000~11500 5800~7250 3800~5100

M36 4.0 14000~20000 10000~12500 6500~8800

THREAD

PITCH

MILD STEEL (property class 4.6 or 4.8) BRASS

WITHOUT SPRING

WASHER

WITH SPRING

WASHER

WITHOUT SPRING

WASHER

Appendix 14. TECO Worldwide Operations

HEAD OFFICE

Teco Electric & Machinery Co. Ltd 10F. No. 3-1 Yuan Cyu St. Nan-Kang, Taipei 115 Taiwan R.O.C. Tel: +886 2 6615 9111 Fax: +886 2 6615 2253 www.tecomotor.com.tw

UNITED STATES

PO Box 227 (78680-0277), 5100 N.IH35 Round Rock Texas USA Tel: +1 512 255 4141 +1 800 873 8326 www.tecowestinghouse.com

CANADA

Teco-Westinghouse Motors Inc. (Canada) 18060-109th Ave Edmonton, Alberta T5S 2K2 Canada Tel: +1 780 444 8933 Fax: (780) 486-4575 24 HR Emergency Pager: (780) 419-7734 Toll Free: 800-661-4023 Fax Toll Free: 888-USE-TWMI www.twmi.com

MEXICO

S.A. de C.V. CIRCUITO MEXIAMORA PONIENTE 321 PARQUE SANTA FE GUANAJUATO PUERTO INTERIOR SILAO, GUANJUATO CP 36275, Mexico E-mail: ventas@tecowestinghouse.com Tel: +52 (472) 748 9016 al 20

CHINA

Suzhou Teco Electric & Machinery Co., Ltd No. 1 Changjiang W.Rd.South-Dam Industrial Park Liuhe Zhen, Taicang City, Suzhou Jiangsu Province, PRC Tel: +86 512 5361 9901 Fax: +86 512 5396 1058

Wuxi Teco Electric & Machinery Co., Ltd. No. 9 South Of Changjiang Road, New Zone, Wuxi Jiangsu Province. PRC Tel: + 86 510 8534 2005 Fax: +86 510 8534 2001 www.wuxiteco.com

Jiangxi Teco Electric & Machinery Co., Ltd. 1328 Jinggangshan Rd., Nanchang Jiangxi, PRC Tel:+86 791 641 3690 Fax:+86 791 641 4228

Shanghai Office: Rm 321 Building No.6 Lane 1279 Zhongshan W. Rd. Shanghai P.R.C Tel: +86 21 5116 8255 Fax: +86 21 6278 8761

HONG KONG

Tecoson Industrial Development (HK) Co., Ltd. Rm 3712 Hong Kong Plaza 186-191 Connaught Rd West, Hong Kong Tel: +852 2858 3220

Addendum A

SINGAPORE

Teco Electric & Machinery (PTE) Ltd. 18 Chin Bee Drive Singapore 619865 Tel: +65 6 265 4622 Fax: +65 6265 7354 www.teco.com.sg

INDONESIA

P.T. Teco Multiguna Elektro JL Bandengan Utara No. 83/1-2-3 Jakarta Utara-14400 Indonesia Tel: +62 21 662 2201 Fax: +62 21 6697029

MALAYSIA

STE Marketing SdN Bhd. Plo 52, Jalan Firma 2/1 Kawasan Perind. Tebrau 1, 81100 Johor Bahru Johor Malaysia Tel: +60 7 351 8862 Fax: +607 354 6107

THAILAND

Teco Electric & Machinery (Thai) Co. Ltd. 128/1 Soi Watsrivareenoi Moo 7 Bangna-Trad Road Km 18 Bangchalong Bangplee Samuthprakarn 10540 Thailand Tel: +662 3371630-1

VIETNAM

TECO(Vietnam)Electric & Machinery Co., Ltd. KCN LONG Thanh, Huyen Long Thanh, Tinh Dong Nai. Tel: 84-061-3514108 Fax: 84-061-3514410

JAPAN

Sankyo Co., Ltd. 26

2-4-1 Hamamatsucho Minato-ku Tokyo Japan 105-6126 Tel: +81 3 3435 9729 Fax: +81 3 3578 8381

fl. World Trading Center Bldg.

AUSTRALIA

Sydney Office Teco Australia Pty Ltd. 335-337 Woodpark Road Smithfield NSW 2164 Australia Tel: +61 2 9765 8118 www.teco.com.au

Melbourne Office Teco Australia Pty Ltd. 16 Longstaff Road Bayswater VIC 3153 Australia Tel: +61 3 9720 4411

Brisbane Office Teco Australia Pty. Ltd. 50 Murdoch Circuit, Acacia Ridge QLD 4110 Australia Tel: +61 7 3373 9600

Perth Office Teco Australia Pty Ltd. 28 Belgravia Street, Belmont WA 6104 Australia Tel : +61 8 9479 4879

NEW ZEALAND

Teco New Zealand Pty Ltd. Unit 3 / 477 Great South Road Penrose Auckland New Zealand Tel: +64 9 526 8480

MIDDLE EAST

Teco Middle East Electric & Machinery Co., Ltd. Kingdom of Saudi Arabia Dammam City P.O. Box 708 - Dammam 31421 Tel: +966 3 835 2619 Fax: +966 3 834 1678 www.teco-me.com

NETHERLANDS

Teco Electvic & Machinery B.V. Teco’s European Head Office Rivium 3e Straat 27 2909 LH Capelle a/d Ijssel Netherlands Tel: +31 10 266 6633 Fax: +31 10 202 6415

UNITED KINGDOM

Teco Electric Europe Limited 7 Dakota Avenue, Salford. M50 2PU England Tel: +44 161 877 8025 Fax: +44 161 877 8030 www.teco.co.uk

GERMANY

Teco Electvic & Machinery B.V. Niederlassung Deutschland Marktstrasse 69 37441 Bad Sachsa Germany Tel: +49 5523 95340 Fax: +49 5523 953424 www.teco-westinghouse.de

SPAIN

Teco Electric & Machinery B.V. Spain Office C/Apostol Santiago, 38, 1º-1 28017 Madrid, Spain Tel: +34 91 326 3091 Fax: +34 91 326 3091

Addendum A

TECO Worldwide Operations - Agents

KOREA

Seorim Corporation #915,Woolim Lion's Valley I, 311-3,Sangdaewon- dong, Jungwon-gu,Seongnam-city, Gyeonggi-do, Korea Tel: 82-31-737-2311 Fax: 82-31-737-2312 www.seorimcorp.co.kr

PHILIPPINES

Trade One No. 56 Aragon Street San Francisco Del Monte 1170 Quezon City Metro Manila, Philippines Tel:(632) 371-3032 Fax:(632) 371-1175 www.tradeoneinc.com

TAIAN.(SUBIC) Phase I, Subic Bay Industrial Park Argonaut Highway Corner Brave Heart St., Subic Bay Freeport Zone Philippines 2222. Tel: 63-47-252-1668 Fax: 63-47-252-3234 www.taian.com.ph

SOUTH AFRICA

ArmCoil Afrika (Pty) Ltd. Unit 3 Prestige Park 127 Main Reef Road Technikon Roodepoort PO Box 500 Maraisburg 1700 Gauteng South Africa Tel:+2711 763 2351 Fax:+086 502 0086 www.armcoil.co.za

TUNISIA

AFRICA COMPANY RUE ENNASRIA, IMM. NAFOURA BLOC A-2-1 SFAX EL JADIDA 3027 SFAX TUNSIE (TUNISIA) Tel: +216 74 40 28 85 Fax: +216 74 4028 84

SAUDI ARABIA

Al-Quraishi Electrical Services of Saudi Arabia P.O.Box 7386-Dammam 31462 Kingdom of Saudi Arabia Phone : +966-3-857-2537 Fax : +966-3-857-2541 www.aqesa.com

EGYPT

Automation Management Solutions 38 Mossadak Street, Dokki, Giza, Egypt Tel:+202 333 79 774 Fax:+202 376 20 307

JORDAN

Sham Project’s Solutions P.O. Box 2001 Amman 11821-Jordan Tel: 962-6-5526-227 Fax: 962-6-5526-228

For more information, please contact your local agent

or branch office of TECO-Westinghouse.

3A057H03062014E REV.00

2014. Mar.

Addendum A

BRG# d D B G Full Qty

mm mm mm grams grams

NU205/6205 25 52 15 4 15

NU206/6206 30 62 16 5 15

NU207/6207 35 72 17 6 15

NU208/6208 40 80 18 7 20

NU209/6209 45 85 19 8 25

NU210/6210 50 90 20 9 30

NU211/6211 55 100 21 11 35

NU212/6212 60 110 22 12 40

NU213/6213 65 120 23 14 50

NU214/6214 70 125 24 15 50

NU215/6215 75 130 25 16 60

NU216/6216 80 140 26 18 60

NU217/6217 85 150 28 21 80

NU218/6218 90 160 30 24 80

NU219/6219 95 170 32 27 90

NU220/6220 100 180 34 31 100

NU221/6221 105 190 36 34 110

NU222/6222 110 200 38 38 120

NU224/6224 120 215 40 43 120

NU226/6226 130 230 40 46 140

NU305/6305 25 62 17 5 17

NU306/6306 30 72 19 7 25

NU307/6307 35 80 21 8 25

NU308/6308 40 90 23 10 30

NU309/6309 45 100 25 13 35

NU310/6310 50 110 27 15 40

NU311/6311 55 120 29 17 50

NU312/6312 60 130 31 20 60

NU313/6313 65 140 33 23 80

NU314/6314 70 150 35 26 80

NU315/6315 75 160 37 30 100

NU316/6316 80 170 39 33 100

NU317/6317 85 180 41 37 120

NU318/6318 90 190 43 41 120

NU319/6319 95 200 45 45 140

NU320/6320 100 215 47 51 160

NU321/6321 105 225 49 55 190

NU322/6322 110 240 50 60 220

NU324/6324 120 260 55 72 270

NU326/6326 130 280 58 81 300

2 SERIES

3 SERIES

d = Bore (mm)

D = OD (mm)

B = Width (mm)

G = Grease Qty (g)

G = D*B*0.005

Grease Type

Polyrex EM

Datasheet VHTP2506 Reference Drawing (Teco)

Specifications and Main Features

Frequently Asked Questions

User Manual