Datasheet EPY2504 Reference Drawing (Teco)

TORQUE

TORQUE

CURRENTS

NEMA

POWER FACTOR

EFFICIENCY

TORQUE

ISSUED

MAX

8/15/2014

TYPE

OUTPUT

HP KW

250 186.5

AEHHSY

POLE

4

PERFORMANCE DATA

3-PHASE INDUCTION MOTOR

FRAME

SIZE

449TY

VARIABLE TORQUE

VOLTAGE

460

VARIABLE FREQUENCY DRIVE SERVICE

NAMEPLATE INFORMATION

HZ

60

RATED

AMBIENT

40oC

INS.

CLASS

F

OHMS/PHASE EQUIVALENT WYE CIRCUIT
(AT RATED OPERATING TEMPERATURE 25

NEMA

DESIGN

B

ENCLOSURE

CATALOG#

TIME

RATING

CONT.

TEFC

EPY2504

SERVICE

FACTOR

1.15

o

C)

3~60

6~60

FULL

LOAD

RPM

1787

HZ

HZ

FULL LOAD

MIN.% NOM.%

HP

CONSTANT TORQUE

HP

25~250 60~90734

RPM

90~18000.0313~250

RPM

180~1800 250 1800-2700 734~489.33

3/4 LOAD%1/2 LOAD

95.4 96.2 95.8 95 88 84.5 80

NO LOAD FULL LOAD

AT

460

VOLT

(lb-ft)

1.826~734

(lb-ft)

HZ HP RPM

0.0179 0.018

TYPICAL PERFORMANCE

FULL LOAD%3/4 LOAD%1/2 LOAD

%

LOCKED ROTOR

AT

460

VOLT

R1 R2 X1

0.76 0.3753

CONSTANT HORSEPOWER

%

NEMA

KVA

AT

460

VOLT

1825277.0053.8

CODE

LETTER

G

X2

X

9.6

(lb-ft)

SOUND

PRESSURE

LEVEL @ 3 FT

Db(A)

81

SAFE STALL

TIME IN

SECONDS

COLD HOT

19 13

m

FULL

LOAD

(lb-ft)

734.00 110 90 210 83 1017

APPROVED:

TORQUE

LOCKED

ROTOR

%FLT

PULL

UP

%FLT

BREAK

DOWN

%FLT

M. PRATER

INERTIA

ROTOR

WR

(lb-ft2)

DRAWING NO.

LOAD

2

WK

(lb-ft2)

ALLOWABLE

2

ACCEL TIME (DOL)

NEMA

LOAD

WK

Sec

2

WK

(lb-ft2)

2

2034

31057EPY2504

MAX

ALLOWABLE

WK

Sec

2

10.575.49

ALLOWABLE

STARTS

PER HOUR

COLD

2

REVISION:

HOT

1

1

DATE: CATALOG NO.:

T

December 2, 2005

ACROSS THE LINE CONNECTION

CONNECTION DIAGRAM

SCHEMATIC - Δ / Y CONNECTION

EPY2504

460 VOLT CONNECTION

WYE START-DELTA RUN CONNECTION

LINE LINE

460 VOLT STAR

460 VOLT RUN

DWG NO.

DAC-1545-3

INSTALLATION AND
MAINTENANCE INSTRUCTIONS
FOR THREE PHASE
INDUCTION MOTORS

Frames 143T - 449TZ

RECEIVING

1. Check nameplate data.

2. Check whether any damage has occurred during transportation.

3. After removal of shaft clamp, turn shaft by hand to check that it turns freely.

4. If motor is to be reshipped(alone or installedto another piece of equipment) the shaft must again
be clamped to prevent axial movement.

Note: Remove the bearing clamp before turning the shaft on 284T-449TZ frame motors.

WARNING
THE FOLLOWING SAFETY PRECAUTIONS MUST BE OBSERVED:

1. Electric rotating machinery and highvoltage can cause serious or fatal injury if improperly

installed, operated or maintained. Responsible personnel should be familiarized with
NEMA MG-1; Safety Standards for Construction and Guide Selection. Installation and Use of
Electric Motors and Generators; National Electric Code and all local safetyrequirements.

2. Whenservicing,all powersources to the motorandto the accessorydevicesshould be
de-energized and disconnected and all rotating parts should be at standstill.

3. Liftingmeans, when supplied, are intended for lifting the motor only. Whentwo lifting
devices are supplied with the motor a dual chain must be used.

4. Suitable protection must be used when working near machinery with high noise levels.

5. Safeguard or protective devices must not be by-passed or rendered inoperative.

6. The frame of this machine must be grounded in accordance with the National Electric Code and
applicable local codes.

7. A suitable enclosure should be providedto prevent access to the motor by other than

authorized personnel. Extra caution should be observed around motors that are
automatically or have automatic re-setting relays as they may restart unexpectedly.

8. Shaft key must be fully captive or removed before motor is started.

9. Provide proper safeguards for personnel against possible failure of motor-mounted brake,
particularly on applications involving overhauling loads.

10.Explosion proof motors are constructed to comply with the label service procedure manual, repair
of these motors must be made by TECO-Westinghouse Motor Company or U/L listed service
center in order to maintain U/L listing.

LOCATION

1. Drip-proof motors are intended for use where atmosphereis relativelyclean, dry,well
ventilated and non-corrosive.

2. Totallyenclosedmotors may be installedwhere dirt, moisture, or dust are present and in outdoor
locations.

3. Explosion-proof motors are built for use in hazardous locations as indicated by
Underwriters’ label on the motor.

4. Chemical duty enclosed motors are designed for installationin high corrosionor excessive
moisture locations.

Note: in all cases, no surrounding structure should obstruct normal flow or
ventilating air through or over the motor.

MOUNTING

2/82537

1/26090

5/8

120

180

1. Mount motor securely on a firm, flat base. All ball bearing normal thrust motors up to and
including 256T framesize may be side-wall or ceiling mounted; all others check nearest
TECO-Westinghouse office for mounting recommendations.

2. Align motor accurately, using a flexiblecouplingif possible. For driverecommendations,

consult with drive or equipment manufacturer, or TECO-Westinghouse.

3. Mounting bolts mustbe carefully tightened to prevent changes in alignment and possible

damageto the equipment. The recommended tightening torque’s for medium carbonsteel bolts,
identified by three radial lines at 120 degrees on the head, are:

Bolt Size

Recommended Torque (Ft-lb.)

Minimum Maximum

3/4 210 320

4. V-beltsSheave PitchDiameters should not be lessthanthose shownin Table 1 (NEMA
recommended values)

5. Tighten belts only enough to prevent slippage. Belt speed should not exceed 5000 ft. per
min.

TABLE 1. V-Belt Sheave Pitch Diameters (MG1-14.42)

V-Belt Sheave

Conventional

A, B, C, D AND E

Minimum

Horsepower at

Frame

Number 3600 1800 1200 900

143T 1.5 1 .75 .5 2.2 4.25 2.2 2.25
145T 2-3 1.5-2 1 .75 2.4 4.25 2.4 2.25
182T 3 3 1.5 1 2.4 5.25 2.4 2.75

182T 5 ... ... ... 2.6 5.25 2.4 2.75

184T ... ... 2 1.5 2.4 5.25 2.4 2.75

184T 5 ... ... ... 2.6 5.25 2.4 2.75

184T 7.5 5 ... ... 3.0 5.25 3.0 2.75

213T 7.5-10 7.5 3 2 3.0 6.5 3.0 3.375
215T 10 ... 5 3 3.0 6.5 3.0 3.375

215T 15 10 ... ... 3.8 6.5 3.8 3.375

254T 15 ... 7.5 5 3.8 7.75 3.8 4

254T 20 15 ... ... 4.4 7.75 4.4 4

256T 20-25 ... 10 7.5 4.4 7.75 4.4 4

256T ... 20 ... ... 4.6 7.75 4.4 4

284T ... ... 15 10 4.6 9 4.4 4.625

284T ... 25 ... ... 5.0 9 4.4 4.625

286T ... 30 20 15 5.4 9 5.2 4.625

Synchronous Speed, RPM

Pitch

Diameter

Inches

*Maximum

Width

Inches

Minimum
Outside
Diameter
Inches

Narrow

3V, 5V, AND 8V

**Maximum

Width

Inches

TABLE 1. V-Belt Sheave Pitch Diameters (MG1-14.42)

V-Belt Sheave

Conventional

A, B, C, D AND E

Minimum

Horsepower at

Frame

Number 3600 1800 1200 900

324T ... 40 25 20 6.0 10.25 6.0 5.25
326T ... 50 30 25 6.8 10.25 6.8 5.25

364T ... ... 40 30 6.8 11.5 6.8 5

364T ... 60 ... ... 7.4 11.5 7.4 5.785

365T ... ... 50 40 8.2 11.5 8.2 5.785

365T ... 75 ... ... 9.0 11.5 8.6 5.785

404T ... ... 60 ... 9.0 14.25 8.0 7.25

404T ... ... ... 50 9.0 14.25 8.4 7.25

404T ... 100 ... ... 10.0 14.25 8.6 7.25

405T ... ... 75 60 10.0 14.25 10.0 7.25

405T ... 100 ... ... 10.0 14.25 8.6 7.25

405T ... 125 ... ... 11.5 14.25 10.5 7.25

444T ... ... 100 ... 11.0 16.75 10.0 8.5

444T ... ... ... 75 10.5 16.75 9.5 8.5

444T ... 125 ... ... 11.0 16.75 9.5 8.5

444T ... 150 ... ... ... 16.75 10.5 8.5

445T ... ... 125 ... 12.5 16.75 12.0 8.5

445T ... ... ... 100 12.5 16.75 12.0 8.5

445T ... 150 ... ... ... 16.75 10.5 8.5

Synchronous Speed, RPM

Pitch

Diameter

Inches

*Maximum

Width

Inches

Minimum
Outside
Diameter
Inches

Narrow

3V, 5V, AND 8V

**Maximum

*Max. Sheave width = 2(N-W) - .25
**Max Sheave width = N-W
***Sheave ratios grater than 5:1 and center-to-center distanceless than the diameter of the

large sheave should be referred to TECO-Westinghouse.

Width

Inches

POWER SUPPLY & CONNECTIONS

1. Wiring of motor and control, overload protection and grounding should be in accordancewith
National Electrical Code and all local safety requirements.

2. Nameplate voltage andfrequency should agree with power supply. Motor will operate
satisfactorilyon line voltage within ±10% of nameplate voltage; or frequency with ±5% and
with a combined variation not to exceed ±10%. 230-volt motors can be used on208-volt
networksystems,but with slightly modified performancecharacteristics as shown on the
nameplate.

3. Dual voltage and single voltage motors can be connectedfor the desired voltage by
following connection diagram shown on the nameplate or inside of the conduit box.

4. All Explosion Proofmotors have Temperature LimitingDevicesin themotor enclosureto
preventexcessiveexternal surface temperature of the motor in accordance with U/L
standards. Terminals of thermal protectors (P1 & P2) should be connected to the motor
control equipment, according to the connection diagram inside of the conduit box.

5. Standard connection diagram for three phase, not thermally protected, dual rotation motors

are shown in diagrams A through E. (Note: To change rotation, Interchange any two line

leads)

*Important: For Part Winding Start, M2 contactor should be closed within two (2) seconds

after M1 contactor is closed.
Only 4 pole and above (e.g., 6P, 8P...)motors are satisfactoryfor Part WindingStart
at low voltage.

START UP

1. Disconnect load and start motor. Check direction of rotation. If rotation must be changed,
ALLOW THE MOTOR TO STOP COMPLETLEY. Interchange any two leads of a three-phase
motor.

2. Connect load. The motor should start quickly and run smoothly. If no, shut power off at once.
Recheck the assembly including all connections before restarting.

3. If excessivevibration is noted,check for loose mountingbolts too flexible motorsupport
structure or transmitted vibration from adjacent machinery. Periodic vibration checks should
be made; foundations often settle.

4. Operate under load for short period of time and check operating current against nameplate.

TESTING

If the motor has beenin storage for an extensiveperiodor has been subjectedto adverse moisture
conditions,it is best to checktheinsulationresistance of the statorwindingwitha megometer.
Depending on the length and conditions of storage it may be necessary to regrease or change
rusted bearings.
If the resistance is lower than one megohm the windings should be dried in one of the following two
ways:

1. Bakein oven at temperaturesnot exceeding 194°F until insulationresistancebecomes
constant.

2. With rotor locked, apply low voltage and gradually increase the current through windings until
temperature measured with a thermometerreaches 194°F. Do not exceed this temperature.

MAINTENANCE

1 Thru 30 Hp, 1800 rpm and below

7 years

3 years

180 days

1 Thru 20 Hp, 3600 rpm

5 years

2 years

90 days

INSPECTION

Inspect motor at regular intervals. Keep motor clean and ventilation openings clear.

LUBRICATION

1. Frame 143T-256T: Double shielded and pre-lubricatedball-bearing motors withoutgrease
fittings and don’t need re-lubrication, except on MAX-E1®and MAX-E2®products which
have re-greasable features.

2. Frames 280TS, 320-449TZ(TS): Motors having grease fittings and grease discharge

devices at brackets. Motors are shipped with grease for initial running. It is necessary to
re-lubricate anti-friction bearing motors periodically, depending on size and type of service. See
Table 2 to provide maximum bearing life. Excessive or too frequent lubrication may damage
the motor.

TABLE 2

Horsepower

40 Thru 75 Hp, 1800 rpm and below 210 days 70 days 30 days
100 Thru 150 Hp, 1800 rpm and below 90 days 30 days 15 days

25 Thru 75 Hp, 3600 rpm 180 days 60 days 30 days
100 Thru 150 Hp, 3600 rpm 90 days 30 days 15 days

Note:

A. Standard conditions: 8 hours operation per day, normal or light loading, clear and 40°C

ambient conditions.

B. Severe conditions: 24-hour operation per day or light shock loading, vibration or in dirty or

dusty conditions.
C. Extreme conditions:With heavy shock loading or vibration or dusty conditions.
D. For double shielded bearings, above data (lubricationfrequency)meansthat the

bearing must be replaced.

3. Be sure fittings are clean and free from dirt. Using a low-pressure grease gun, pump in the
recommended grease until new grease appears at grease discharge hole.

4. Use the POLYUREA grease unless special grease is specified on the nameplate.

5. If re-lubrication is to be performed with the motor running, stay clear of rotating parts. After

re-greasing, allow the motor to run for ten to thirty minutes.

Standard

Conditions

Severe

Conditions

Extreme

Conditions

RENEWAL PARTS

1. Use onlygenuineTECO-Westinghouse renewal partsor as recommended by TECO­Westinghouse Motor Company.

2. Whenyouorder renewal partsplease specify completeinformationto TECO-Westinghouse

office/agent such as type, frame no., poles, horsepower, voltage, series no., quantity, etc.

FOR FURTHER INFORMATION PLEASE CONTACT

TECO-WESTINGHOUSE MOTOR COMPANY

Round Rock, TX