Cooper Lighting S260-75-1 User Manual

Safety Information . . . . . . . . . . . . . . . . . . . . . . . . .2

Hazard Statement Definitions . . . . . . . . . . . . . . . .2

Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . .2

Product Information . . . . . . . . . . . . . . . . . . . . . . .3

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Acceptance and Initial Inspection . . . . . . . . . . . . .3

Handling and Storage . . . . . . . . . . . . . . . . . . . . . .3

ANSI Standards . . . . . . . . . . . . . . . . . . . . . . . . . .3

Quality Standards . . . . . . . . . . . . . . . . . . . . . . . . .3

Description of Operation . . . . . . . . . . . . . . . . . . . .4

Time Delay Selection . . . . . . . . . . . . . . . . . . . . . .4

Pre-Installation Check . . . . . . . . . . . . . . . . . . . . . .5

Pre-lnstallation . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Installation Instructions . . . . . . . . . . . . . . . . . . . .6

Initial Programming . . . . . . . . . . . . . . . . . . . . . . .6

Mounting the Control . . . . . . . . . . . . . . . . . . . . . .6

Grounding the Control . . . . . . . . . . . . . . . . . . . . .6

Before Placing the Control and Switchgear

in Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Equipment Required . . . . . . . . . . . . . . . . . . . . . . .6

Customer Connections . . . . . . . . . . . . . . . . . . . . .8

Interconnecting Cables . . . . . . . . . . . . . . . . . . . . .13

Operating Instructions . . . . . . . . . . . . . . . . . . . . .16

Initial Operation . . . . . . . . . . . . . . . . . . . . . . . . . .16

Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . .17

Theory of Operation—Basic S Control . . . . . . . . .17

Voltage Sensing . . . . . . . . . . . . . . . . . . . . . . . . . .17

Automatic Transfer, Preferred to Alternate . . . . . .18

Return Transfer, Parallel Transition . . . . . . . . . . . .18

Return Transfer, Non-Parallel Transition . . . . . . . .18

No Preference Mode . . . . . . . . . . . . . . . . . . . . . .19

Preferred Source II Mode . . . . . . . . . . . . . . . . . . .19

Control Mode Switch, S5 . . . . . . . . . . . . . . . . . . .19

Manual Control . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Indicating Lamps . . . . . . . . . . . . . . . . . . . . . . . . .19

Remove the Control from Service . . . . . . . . . . . . .20

Troubleshooting—Basic S Control . . . . . . . . . . . .20

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Basic Troubleshooting . . . . . . . . . . . . . . . . . . . . .20

Advanced Troubleshooting . . . . . . . . . . . . . . . . . .21

Fault Block Accessory . . . . . . . . . . . . . . . . . . . . .28

General Description . . . . . . . . . . . . . . . . . . . . . . .28

Accessory Settings . . . . . . . . . . . . . . . . . . . . . . . .28

Operating Instructions . . . . . . . . . . . . . . . . . . . . .29

Theory of Operation—Fault Block Accessory . . . .29

Overcurrent Sensing . . . . . . . . . . . . . . . . . . . . . .29

Phase Fault Operation . . . . . . . . . . . . . . . . . . . . .29

Ground Fault Operation . . . . . . . . . . . . . . . . . . . .32

Reset Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . .32

Inrush Restraint Feature . . . . . . . . . . . . . . . . . . . .32

Testing Fault Block Operation . . . . . . . . . . . . . . . .33

Returning the Control to Service . . . . . . . . . . . . . .35

Wiring Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . .40

Front Panel—Replacement Parts List . . . . . . . . . .41

Back Panel—Replacement Parts List . . . . . . . . . .42

Fault Block Accessory—Replacement Parts List . .43

Type S Automatic Load-Transfer Control Installation, Operation, and Maintenance Instructions

Oil- and Vacuum-Break Switches

Service Information

Contents

S260-75-1

Printed in USA

October 2002 • Supersedes 1/90

Figure 1. Kyle®Type S automatic load-transfer control.

020076KM

Type S Automatic Load-Transfer Control Installation, Operation, and Maintenance Instructions

The instructions in this manual are not intended as a substitute for proper training or adequate experience in the safe operation of the equipment described. Only competent technicians who are familiar with this equipment should install, operate, and service it.

A competent technician has these qualifications:

• Is thoroughly familiar with these instructions.

• Is trained in industry-accepted high- and low-voltage safe operating practices and procedures.

• Is trained and authorized to energize, de-energize, clear, and ground power distribution equipment.

• Is trained in the care and use of protective equipment such as flash clothing, safety glasses, face shield, hard hat, rubber gloves, hotstick, etc.

Following is important safety information. For safe installation and operation of this equipment, be sure to read and understand all cautions and warnings.

Safety Instructions

Following are general caution and warning statements that apply to this equipment. Additional statements, related to specific tasks and procedures, are located throughout the manual.

SAFETY INFORMATION

WARNING: This equipment is not intended to

protect human life. Follow all locally approved procedures and safety practices when installing or operating this equipment. Failure to comply can result in death, severe personal injury, and equipment damage.

G102.1

DANGER: Hazardous voltage. Contact with

hazardous voltage will cause death or severe personal injury. Follow all locally approved safety procedures when working around high and low voltage lines and equipment. G103.3

WARNING: Before installing, operating, main-

taining, or testing this equipment, carefully read and understand the contents of this manual. Improper operation, handling or maintenance can result in death, severe personal injury, and equipment damage. G101.0

WARNING: Power distribution equipment must

be properly selected for the intended application. It must be installed and serviced by competent personnel who have been trained and understand proper safety procedures. These instructions are written for such personnel and are not a substitute for adequate training and experience in safety procedures. Failure to properly select, install, or maintain power distribution equipment can result in death, severe personal injury, and equipment damage.

G122.2

SAFETY FOR LIFE

Cooper Power Systems products meet or exceed all applicable industry standards relating to product safety. We actively promote safe practices in the use and maintenance of our products through our service literature, instructional training programs, and the continuous efforts of all Cooper Power Systems employees involved in product design, manufacture, marketing, and service.

We strongly urge that you always follow all locally approved safety procedures and safety instructions when working around high voltage lines and equipment and support our “Safety For Life” mission.

This manual may contain four types of hazard statements:

DANGER: Indicates an imminently hazardous situation which, if not avoided, will

result in death or serious injury.

WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in

death or serious injury.

CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in

minor or moderate injury.

CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in equipment damage only.

Hazard Statement Definitions

SAFETY

FOR LIFE

SAFETY

FOR LIFE

Introduction

Service Information S260-75-1 provides installation, operation, and maintenance instructions for the Kyle

Type S automatic load-transfer control.

Read This Manual First

Read and understand the contents of this manual and follow all locally approved procedures and safety practices before installing or operating this equipment.

Additional Information

These instructions cannot cover all details or variations in the equipment, procedures, or process described, nor to provide directions for meeting every possible contingency during installation, operation, or maintenance. For additional information, contact your Cooper Power Systems representative.

Acceptance and Initial Inspection

Each Type S control is completely assembled, tested, and inspected at the factory. It is carefully calibrated, adjusted, and in good condition when accepted by the carrier for shipment.

Upon receipt, inspect the carton for signs of damage. Unpack the control and inspect it thoroughly for damage incurred during shipment. If damage is discovered, file a claim with the carrier immediately.

Handling and Storage

Use care during handling and storage of the control. If the control is to be stored for any length of time prior to installation, provide a clean, dry storage area to minimize the possibility of mechanical damage.

ANSI Standards

Kyle reclosers are designed and tested in accordance with ANSI standards C37.60 and C37.85 and ANSI guideline C37.61.

Quality Standards

The Quality System at the Cooper Power Systems, Kyle Distribution Switchgear plant is

ISO 9001 certified.

ISO 9001 CAN/CSA ISO 9001 BS EN ISO 9001 ANSI/ASQC Q9001

S260-75-1

PRODUCT INFORMATION

SAFETY

FOR LIFE

Description of Operation

The Type S control is designed for use primarily with Kyle Type VR, VLR, VR V, TSC, and C three-phase, load-break switches in automatic load-transfer schemes. In a typical scheme, service to a critical load is normally supplied from a preferred source. It is automatically switched to an alternate, standby source if the preferred source voltage is lost for any reason for a preset period of time. Upon restoration of the preferred source voltage, the load is automatically switched back to the preferred source, again after a predetermined time delay.

Typical Automatic Load-transfer Sequence using the Type S Control

• The load is transferred to the alternate source after a preset time delay, when the preferred source voltage is lost and normal voltage is present on the alternate source. Either Source I or Source II can be selected as the preferred source by a setting on the SOURCE PREFERENCE Switch, S4.

• The load is transferred back to the preferred source— after another preset time delay—when normal voltage is restored to the preferred source. The return transfer (from Source II to Source I) can be either non-parallel (alternate-source switch opens before preferred-source switch closes) or parallel (preferredsource switch closes before alternate-source switch opens). With parallel return the second interruption is eliminated; however, both sources must be in synchronism. The return transfer mode is selected by a setting on the SOURCE PREFERENCE switch, S4.

Variations in the Operation of the Type S Control

•No-Preference Operation. When either source is acceptable for continuous critical load supply. Upon loss of Source I voltage—and after a preset time delay—the load is automatically transferred to Source II, provided normal voltage is present on Source II. However, the load is not transferred back to Source I when voltage is restored, but remains on Source II until such time as Source II voltage is lost. Then an automatic nonparallel transfer to Source I is performed. (Accomplished by setting SOURCE PREFERENCE switch, S4, to NO PREF position.)

•Hold on Alternate Source. When placed to the HOLD ON ALTERNA TE position, the S control will not automatically return to the preferred feeder. If the preferred feeder is energized, the S control can be manually transferred to the preferred feeder by momentarily moving S3 to the NORMAL position.

•Manual Operation of the S control. The Source I and Source II high-voltage switches can be opened and closed independently to effect manual transfer from one source to the other. (Accomplished by setting OPERA TION SELECT OR switch, S3, to MANUALand operating MANUAL OPER. SOURCE I (S1) and MANUAL OPER. SOURCE II (S2) switches as required.)

In addition, a factory-installed fault block accessory will Block Transfer if loss of voltage is due to a fault on the load side of the high-voltage switches. When preferred source voltage is lost (due to the opening of the backup protective device)—and after the preset time delay—the preferred source switch will open and the fault block accessory will disable the S control to prevent closing either high-voltage switch into the fault. The S control must be manually reset before service to the load can be restored. The fault block option is a factory-installed accessory. The accessory is activated by over-current signals supplied by load-sensing current transformers built into special factory-modified Type VR, VLR, VRV, TSC, and CS high-voltage switches. It is also compatible with the PST-6 switchgear. The PST-9 switchgear does not require fault block.

Time Delay Selection

The time delay setting for preferred to alternate source transfer must be long enough to allow discrimination between permanent loss of voltage and temporary loss of voltage due to transient effects or reclosing intervals of backup protective reclosers or breakers. The time-delay required to override reclosing intervals is difficult to determine since voltage may be subnormal during the retarded timing operations of the backup device due to the presence of the fault. It is recommended that the time delay before transfer from preferred to alternate source is set to exceed the maximum cumulative time to lockout of the backup protective device. This approach assures that the transfer switch will not interrupt the current of a fault occurring on the load side of the switch.

The time delay for return from alternate to preferred source upon restoration of preferred source voltage should be set for an interval long enough to assure that service on the preferred source has been permanently restored.

When the control is programmed to operate in the “nopreference” mode, there are no preferred or alternate sources. Time delay intervals for transfer from Source I to Source II are governed by the left-hand Preferred to Alternate timer and for transfer from Source II to Source I by the right-hand Alternate to Preferred Timer. Settings of the two timers may be different because of difference in backup protection on the two sources.

Type S Automatic Load-Transfer Control Installation, Operation, and Maintenance Instructions

IMPORTANT: If Control Mode Switch S3 is placed in

the “AUTO” position, the S-control will place the highvoltage transfer switches into the configuration that is currently selected by the Source Preference Switch S4. This may result in an unintended transfer. Make sure the desired state of the high-voltage transfer switches match the setting of S4 before returning S3 to the “AUTO” position.

Pre-Installation

The Type S automatic load-transfer control is programmed to customer’s specifications and thoroughly tested before shipment from the factory. Perform the following pre-installation test setup and procedure to verify the operation of the standard S control.

Note: This procedure does not test complete control opera-

tion. This can be done only on a complete installation basis with the S control operating the high-voltage transfer switches.

Test Set–up

1. Connect a 120 Vac, 60 Hz power supply to terminals Z and G2 of TB2 being absolutely certain that the grounded side of the power supply is connected to G2.

2. Jumper terminal Z to Y to X to C to B to A.

3. When the 120 Vac power supply is turned on, all six

phases are energized.

4. To simulate loss of voltage on any phase of either source, simply unscrew the appropriate fuse “FU” in the control.

Test Procedure

1. Check the indicating lamps by depressing the LAMP TEST switch (S6). All lamps on the front panel of the control (including fault block accessory if installed) should light with equal brilliance.

2. With phase Y and/or phase B energized, terminals 11 and 21 of TB1 will always show 120 Vac to ground (G1or G2).

3. With OPERATIONS SELECTOR switch (S3) set to MANUAL, terminal 13 of TB1 will respond to the operation of MANUAL OPER. SOURCE I switch (S1) showing 120 Vac to ground when S1 is in the open position and 10 Vac, or less, when S1 is in the OFF and CLOSE positions. Terminal 23 of TB1 will show similar voltages to ground in response to the operation of MANUAL OPER.

4. When MANUAL OPER. SOURCE I switch (S1) is in the CLOSE position there should be 120 Vac

between terminal 15 of TB1 and ground. Similarly, when MANUAL OPER. SOURCE II switch (S2) is in the CLOSE position there should be 120 Vac between terminal 25 of TB1 and ground.

5. To check the response of the latching relay to automatic operation, proceed as follows:

A. Set OPERATION SELECT OR switch (S3) to AUTO. B. Select the desired source preference and return

mode with switch S4.

C. After waiting for a time in excess of the maximum

transfer delay timer setting (to make sure the control is at rest), simulate a “lost” phase by unscrewing one of the preferred source fuses. Listen for relay clatter to recognize breaking the circuit.

D. As soon as phase voltage is lost, the PREFERRED

TO ALTERNATE TIMER will start to run. Verify the LED timer is illuminated during operation.

E. When timing is complete, the latching relay (R1)

will operate. Its position can be checked by the presence of 120 V ac at test terminals T-1 or T -2 on the front panel. 120 Vac between T-2 and T-3 (ground) means the latching relay has moved to that position which would connect the load to Source II if HV switches were connected to the control. 120 Vac at T-1 means the load would be connected to Source I.

F. Replace the removed fuse to restore preferred

source power, observe operation of the ALTERNATE TO PREFERRED TIMER, and check the status of the latching relay (R1) when timing is completed.

Note: SOURCE PREFERENCE switch S4 cannot be

in NO PREF position for this test.

G. Other modes of transfer can be checked by pro-

gramming the control for the desired sequence, simulating loss of source voltage, observing resultant control operation, and checking the final position of the latching relay (R1).

6. Timer settings can be verified with a watch while performing the checks in preceding Step 5.

7. Switch I and Switch II position indicating lamps will not operate during this preinstallation check since the high-voltage transfer switches are not connected to the control.

Their operation can be verified by connecting a 100 ohm, 1 watt, resistor from TB1 terminals to ground as follows:

SWITCH I OPEN lamp—terminal 15 to ground SWITCH I CLOSED lamp—terminal 24 to ground SWITCH II OPEN lamp—terminal 25 to ground SWITCH II CLOSED lamp—terminal 14 to ground

S260-75-1

PRE-INSTALLATION CHECK

WARNING: This equipment is not intended to

protect human life. Follow all locally approved procedures and safety practices when installing or operating this equipment. Failure to comply can result in death, several personal injury and equipment damage.

G102.1

WARNING: Hazardous voltage. Never rely on

the open position of the operating handle or the

contact position indicator; it does not ensure that the line is deenergized. Follow all locally approved safety practices. Failure to comply can result in contact with high voltage, which will cause death or severe personal injury. G123.1

SAFETY

FOR LIFE

Atypical automatic transfer scheme is illustrated in Figure 2.

Initial Programming

The control must be programmed with all necessary operating settings prior to operation with energized switchgear. For the desired settings refer to the Operating Instructions section in this manual.

Mounting the Control

Mount the S control in a convenient, accessible location. Maximum distances between the high-voltage transfer switches and potential sensing transformers and the control depends upon the size of the control cable wire and the length of various cable combinations. (See the Interconnecting Cables section in this manual.) Keep in mind that the longer the cable lengths, the greater the susceptibility to surge damage. Therefore, for optimum reliability and economy, locate the switches and transformers as near as possible to the control.

Mounting dimensions are provided in Figure 3.

• For pole-mounted installation, a hole and keyway in the control mounting bracket accommodates a 5/8” bolt.

• For substation installation, the control is factory installed. Leveling is not required.

Grounding the Control

The control cabinet must be grounded. Agrounding connector on the underside of the cabinet will accommodate No. 14 solid through No. 4 stranded conductors.

For efffective surge protection all control and power conductors for the S control must be routed parallel to a corresponding ground path. For example, the AC power supply for the control should be parallel to and equal in length to the transformer ground path. The control cable should be parallel to and routed close to the switchgear ground path.

Before Placing the Control and Switchgear into Service

Prior to placing the control and switchgear into service, the following installation procedures must be properly completed and verified:

1. Control properly mounted for the installation.

2. Equipment installed according to all locally approved

standards and practices.

3. Control and switchgear properly grounded in accordance with guidelines in this manual.

4. AC power connected to the control.

5. All control programming entered and verified by

appropriate personnel.

Equipment Required

The following equipment is required for a load-transfer installation:

Type S Load-Transfer Control

The control, with or without the fault block accessory, is housed in a cabinet whose outline and mounting dimensions are shown in Figure 3. The control cabinet can be mounted on a pole or substation structure. Leveling is not required. Both the cabinet door and the hinged front panel are equipped with hold-open latches to prevent them from swinging in the open position.

Motor Operated Switches

The three-phase, load break switches require a special wiring accessory for operation with the Type S control. In addition, if fault block is provided, the switches must be equipped with 1000:1 ratio current transformers also available as a factory-installed switch accessory . See the switch installation manual for overall and mounting dimensions and for wiring diagrams.

Potential Transformers

Three-phase voltage sensing is required for control operation. Transformer connections and voltages for various distribution system connections are shown in Figure 5. The voltage sensing relays of the T ype S control drop out on a decreasing voltage at 75 volts (min) and pick up on an increasing voltage at 97 volts (max). The control requires 120 Vac, 60 Hz, 500 VA (min) to operate the transformer switches. Quiescent power dissipation at 120 Vac is 18 watts.

Type S Automatic Load-Transfer Control Installation, Operation, and Maintenance Instructions

INSTALLATION INSTRUCTIONS

WARNING: Hazardous voltage. Solidly ground

all equipment. Failure to comply can result in

death, severe personal injury , and equipment damage.

T223.2

CAUTION: Equipment misoperation. Do not

energize this equipment until all control settings have been properly programmed and verified. Refer to the Control Programming and Operation section of this manual for programming procedures. Failure to comply can result in misoperation (unintended operation), equipment damage, and personal injury. G118.1

S260-75-1

Figure 2. Typical Type S control load-transfer scheme.

Figure 3. Outline and mounting dimensions.

Direction of

Transfer

First Switch Transition (Source to

Switch Reaction Time* Time** Source) Type of Transition

VR, VLR, VRV (standard) 2.5 to 3.5 cycles 10 sec (approx) I to II No paralleling of sources VR, VLR, VRV (standard) 2.5 to 3.5 cycles 10 sec (approx) II to I No paralleling of sources VR, VLR, VRV (standard) 10 sec (approx) 1.0 to 1.5 cycles II to I Paralleling of sources on return to preferred source

VR, VLR, VRV (quick close) 2.5 to 3.5 cycles 6 to 7 cycles I to II No paralleling of sources VR, VLR, VRV (quick close) 2.5 to 3.5 cycles 6 to 7 cycles II to I No paralleling of sources VR, VLR, VRV (quick close) 4.0 to 5.5 cycles 1.0 to 1.5 cycles II to I Paralleling of sources on return to preferred source

TSC 7 to 8 sec 7 to 8 sec I to II No paralleling of sources TSC 7 to 8 sec 7 to 8 sec II to I No paralleling of sources TSC 7 to 8 sec 7 to 8 sec II to I Paralleling of sources on return to preferred source

PST-6, PST-9 2.0 to 3.0 cycles 5.0 to 6.0 cycles I to II No paralleling of sources PST-6, PST-9 2.0 to 3.0 cycles 5.0 to 6.0 cycles II to I No paralleling of sources PST-6, PST-9 5.0 to 6.0 cycles 2.0 to 3.0 cycles II to I Paralleling of sources on return to preferred source

TABLE 1 Reaction and Transition Times of Cooper Power Systems Motor-Operated Switches

* Time from expiration of time delay to first opening (or closing) of high-voltage switch. Add approximately one cycle to the

values shown to allow for Type S control relay operating time.

** Time-load tap is disconnected or paralleled depending on type of transition used.

SAFETY

FOR LIFE

LOAD

SOURCE I

POTENTIAL SENSING TRANSFORMERS

H.V. SWITCH I

TYPE S CONTROL

H.V. SWITCH II

12 13/16"

22 5/32"

5/8" HOLE PROVIDED FOR CUSTOMER LOCK

POTENTIAL SENSING TRANSFORMERS

16"

SOURCE II

MTG HOLES (2) FOR 5/8" MAX BOLT DIA

1 1/2"

20 1/8" MTG DIM

17 7/8"

GROUNDING

1 3/16"

11"

13 1/2"

2 1/2" 2 1/2"

STD CONTROL

CONTROL WITH FAULT BLOCK

1 1/2"

2 1/2" 2 1/2"

TERMINAL LUG (14 TO 4 STRANDED)

1 5/8" DIA HOLES

5 1/4"

Customer Connections

Connection Diagram

Diagrams for interconnecting the load-transfer control with the high-voltage switches and potential transformers are shown in Figures 5 through 8. The diagrams show

the internal wiring between the terminal blocks and the input and output receptacles on the control (available as an accessory) and the external wiring between the control, transfer switches, and potential transformers. If the control is not equipped with the plugs and receptacles accessory, the cables are wired directly to the terminal blocks in the control. For the physical location of terminal blocks, refer to Figure 27.

Note: Internally wired receptacles and mating plugs for the

switch operators and current sensing transformers on the switch end of the cables are provided as standard with the switches.

Type S Automatic Load-Transfer Control Installation, Operation, and Maintenance Instructions

Figure 4. Phase voltage at the three-phase sensing Type S load-transfer control.

CAUTION: Equipment Damage. Do not drill connection holes into the top of the cabinet. Connection holes in the top of the cabinet will allow moisture to seep into the control and damage the components or cause control misoperation. Failure to comply will void the control’s factory warranty.

T249.0

LOAD

H.V.

SOURCE

Phase Voltage at the Three-Phase Sensing Type S Load Transfer Control as Related to System and Sensing Transformer Connections

FEEDER

SWITCH

S CONT

H.V. SWITCH

* Assuming no feedback from the load ** Bank operates open wye-delta; requires two primary phases open for sensing † Voltage may vary from 87 to 58% depending on load

S260-75-1

Figure 5. Connection diagram for Type S load-transfer control (with fault block accessory) operating a Type VR,VLR, or VRV three-phase switch. (The transformer cutouts, tap fuses, reclosers, and arresters are not shown.)

SAFETY

FOR LIFE

SOURCE II

POTENTIAL

SENSING

TRANSFORMERS

500 VA MIN

120 VAC, 60 HZ

SECONDARIES

SOURCE I AND SOURCE II MUST

PRESENT THE SAME PHASE

ROTATION TO THE LOAD.

TYPE VR, VLR, OR VRV

SWITCH WITH KA217VR

WIRING ACCESSORY

LOAD TAP

TYPE VR, VLR, OR VRV

SWITCH WITH KA217VR

WIRING ACCESSORY

2 1

AUX.

SW "a"

CONTACT

(STAGE1)

D C B

ABC

SEE INSERT

RECEPTACLES AND PLUGS

FURNISHED WITH KA217VR

WIRING ACCESSORY

FOR INTERNAL

CONNECTIONS

"SW"

GRN

21 25

2324 26

G2 G1

16 13 14 15 11

S CONTROL

TRANSFER SWITCH OPERATORS

A A

WHT

GRN

A A

B B

"SW"

E D

D C

B A

AUX. SW "a"

CONTACT (STAGE1)

2 1

F E

C B A

H G F E

ABC

SEE INSERT FOR

INTERNAL

CONNECTIONS

C C

RED

WHT

B B

D D

BLK

BLK C C

E E

BLU

ORG

F F

BLU

F F

SELECTOR

SWITCH

MOTOR

TRIP OPEN COIL

FACTORY-WIRED RECEPTACLE

AND PLUG ACCESSORY KCN55SB

(IF ACCESSORY IS NOT SPECIFIED

WIRE SWITCH CONTROL DIRECTLY

TO TB1, PT'S TO TB2 AND CT'S TO TB5.)

"CT"

BLK

RED

GRN

IZ 27 IY IX

IN IN

IB IA

FAULT BLOCK ACCESSORY

BLK

RED

GRN

C C

D D

YEL

D D

E E

BLU

ORG

BLU

ORG

E E

POTENTIAL SENSING

"CT"

"PT" J J

TRANSFORMERS

K K

Z Y X

G C B A

WHT

GRN

A A

B B

BLK

RED

BLK

RED

B B

C C

WHT

K K

J J

"PT"

QUICK

COIL

MOTOR

SELECTOR SWITCH

NOTE: FOR SINGLE-PHASE SENSING

JUMPER TERMINAL A TO B TO C AND

TERMINAL X TO Y TO Z ON TB2

F E

3 2

INTERNAL CONNECTION DIAGRAM:

STANDARD SWITCH OPERATOR

F E

3 2

C B

1 0

TRIP

OPEN

COIL

SOURCE I

POTENTIAL

SENSING

TRANSFORMERS

500 VA MIN

120 VAC, 60 HZ

SECONDARIES

INTERNAL CONNECTION DIAGRAM:

QUICK CLOSE SWITCH OPERATOR

Type S Automatic Load-Transfer Control Installation, Operation, and Maintenance Instructions

Figure 6. Connection diagram for Type S load-transfer control (with fault block accessory) operating the Type TSC three-phase switch. (The transformer cutouts, tap fuses, reclosers, and arresters are not shown.)

SOURCE I AND SOURCE II MUST

PRESENT THE SAME PHASE

ROTATION TO THE LOAD.

SOURCE II

POTENTIAL

SENSING

TRANSFORMERS

500 VA MIN

120 VAC, 60 HZ

SECONDARIES

TYPE TSC SWITCH

WITH KA5TSC1 CT ACCESSORY

LOAD TAP

TYPE TSC SWITCH

WITH KA5TSC1 CT ACCESSORY

b1 a1

RECEPTACLE AND PLUG

FURNISHED WITH KA5TSC1

WIRING ACCESSORY

OPEN

"SW"

A A

TB1

GRN

21 25

24 23 26

G2 G1

16 13

S CONTROL

TRANSFER SWITCH OPERATORS

GRN

OPEN

F E D

ABC

H G

E D

F E D

C B A

H G F E D

"SW"

b1 a1

RED

WHT

BLK

RED

C C

ORG

BLK

D D

E E

BLU

ORG

E E

F F

BLU

F F

FACTORY-WIRED RECEPTACLE

AND PLUG ACCESSORY KCN55SB

(IF ACCESSORY IS NOT SPECIFIED,

WIRE SWITCH CONTROLS DIRECTLY

TO TB1, PT'S TO TB2, AND CT'S TO TB5.)

"PT"

ORG

E E

F F

BLU

G G

POTENTIAL SENSING

TRANSFORMERS

BLK

YEL

RED

GRN

28 27

IZ IY IX IN IN IC IB IA

FAULT BLOCK ACCESSORY

BLK

YEL

RED

GRN

"CT"

NOTE: FOR SINGLE-PHASE SENSING

K K

JUMPER TERMINAL A TO B TO C AND

WHT

TB2

1 G2

G C

WHT

"PT"

TERMINAL X TO Y TO Z ON TB2

A A

RED

GRN

B B

BLK

RED

B B

D D

WHT

D D

SOURCE I

POTENTIAL

SENSING

TRANSFORMERS

500 VA MIN

120 VAC, 60 HZ

SECONDARIES

S260-75-1

Figure 7. Connection diagram for Type S load-transfer control operating the Type PST-6 switch. (The transformer cutouts, tap fuses, reclosers, and arresters are not shown.)

SAFETY

FOR LIFE

SOURCE I AND SOURCE II MUST

PRESENT THE SAME PHASE

ROTATION TO THE LOAD.

TYPE CI SWITCH

SOURCE II

POTENTIAL

SENSING

TRANSFORMERS

500 VA MIN

120 VAC, 60 HZ

SECONDARIES

COIL

LS4

(NC)

R M

LS1

SEE INSERT

FOR INTERNAL

CONNECTIONS

LS3

LS2

LS3

(NC)

(NO)

(NC)

LS4

LS2

(NO)

(NC)

TRIP

COIL

KJH

GFEDCBA

GFEDCB

10 9

GFEDCBA

4 3 2 1

INTERNAL CONNECTION DIAGRAM:

C-INTERRUPTER # 2

LOAD TAP

TYPE CI SWITCH

BCDEF

"SW"

TB5

22 21 20 191817161514131211

GFEDCBA

GFEDCB

10 9

7654321

S CONTROL

TRANSFER SWITCH OPERATORS

TB6

20 191817161514131211

10 9

7654321

BCDEF

GHJ GHJ

"PT"

EEFGH

TB2

Z Y X

2G1CBA

POTENTIAL SENSING TRANSFORMERS

RST

TUV

"PT"

AABCD

COIL

LS4

(NC)

R M

LS1

LS3

LS2

LS3

(NC)

(NO)

(NC)

LS4

LS2

(NO)

(NC)

TRIP

COIL

TSRPNML

7 65

4 3 2 1

INTERNAL CONNECTION DIAGRAM:

C-INTERRUPTER # 1

SEE INSERT FOR

INTERNAL

CONNECTIONS

MNPRS

"SW"

V U

TSRPNML

TSRPNM

NOTE: FOR SINGLE-PHASE SENSING

JUMPER TERMINAL A TO B TO C AND

TERMINAL X TO Y TO Z ON TB2

POTENTIAL

SENSING

TRANSFORMERS

500 VA MIN

120 VAC, 60 HZ

SECONDARIES

KEY:

NC = NORMALLY

CLOSED

NO = NORMALLY

OPEN

M = MOTOR

R = RESISTOR

SOURCE I

Type S Automatic Load-Transfer Control Installation, Operation, and Maintenance Instructions

Figure 8. Connection diagram for Type S load-transfer control operating the Type PST-9 switch. (The transformer cutouts, tap fuses, reclosers, and arresters are not shown.)

SOURCE II

SOURCE I AND SOURCE II MUST

PRESENT THE SAME PHASE

ROTATION TO THE LOAD.

TYPE CI SWITCH

POTENTIAL

SEE INSERT

FOR INTERNAL

CONNECTIONS

SENSING

TRANSFORMERS

500 VA MIN

120 VAC, 60 HZ

SECONDARIES

MLKJHG

LKJHG

LS4

LS1

LS3

LS2

LS3

(NC)

(NO)

(NC)

R M

LS4

LS2

(NC)

TRIP

COIL

(NO)

COIL

10 9

LKJHG

4 3 2 1

INTERNAL CONNECTION DIAGRAM:

C-INTERRUPTER # 2

TPG2

LOAD TAP

TPG1

TYPE CI SWITCH

SEE INSERT FOR

INTERNAL

CONNECTIONS

TB1

21252423

G1 1613

14 15 11

S CONTROL

TRANSFER SWITCH OPERATORS

FEDCBA

FEDCB

"SW"

HJKLM

HJK

BCDEF

"PT"

TB2

Z Y X

2G1CBA

EEFGH

POTENTIAL SENSING TRANSFORMERS

"PT"

AABCD

COIL

LS4

(NC)

R M

LS1

LS3

LS2

LS3

(NC)

(NO)

(NC)

LS4

LS2

(NO)

(NC)

TRIP

COIL

10 9

FEDCBA

7 65

4 3 2 1

INTERNAL CONNECTION DIAGRAM:

C-INTERRUPTER # 1

NOTE: FOR SINGLE-PHASE SENSING

JUMPER TERMINAL A TO B TO C AND

TERMINAL X TO Y TO Z ON TB2

SOURCE I

KEY:

NC = NORMALLY

CLOSED

NO = NORMALLY

OPEN

M = MOTOR

POTENTIAL

SENSING

TRANSFORMERS

500 VA MIN

120 VAC, 60 HZ

SECONDARIES

R = RESISTOR

Interconnecting Cables

Interconnecting cable conductor size is dependent upon the distance between the control, switches, and potential transformers. Maximum lengths of various cable combinations for No. 18 through No. 12 AWG conductors are shown in Table 2. The longest combination for the particular installation will determine the minimum conductor size. All cables are to be the same conductor size.

Note: If the control is equipped with the fault block accesso-

ry, see Table 3 for additional cable length limitations.

On the switch end, the cables are wired to connector plugs provided as standard with the switches. On the S control end, the cables are wired either directly to terminal blocks in the control or to connector plugs provided with the Plugs and Receptacles accessory. Figure 9 shows the location of the accessory plugs and receptacles in the bottom of the control cabinet. See the appropriate switch installation manual for the location of the plugs and receptacles on the switch.

Switch Cable

A conductor cable is required between the S control and each high-voltage switch to operate the switches. This cable is wired to a socket plug at the switch end and to either a plug or TB1 at the control end. Pin identification, and cable OD and maximum conductor size accommodated by the plugs are shown in Figures 10 and 11.

Potential Transformer Cable

A four-conductor cable is required between the S control and the potential transformers to transmit source voltage intelligence and to supply operating power for the control. This cable is wired to a five-pin socket plug or TB2 at the control end. Pin socket identification, cable OD, and maximum conductor size accommodated by the plugs are shown in Figure 12.

Note: Connectors are not supplied for the transformer end of

the cable.

S260-75-1

Maximum Length of

Cable Wire Control Cable Combinations (ft.)

Size VR, VLR, or VRV Switches TSC Switch

(AWG) A+B+D or C+B+D A+B or A+D

or C+B or C+D

18 1450 1250 16 2300 2000 14 3700 3200 12 5900 5050

TABLE 2 Maximum Control Cable Lengths

Figure 9. Plugs and receptacles accessory.

Figure 10. Switch cable plug for VR,VLR,VRV, and TSC.

Figure 12. PT cable plug.

020079KM

Note: The control cable lengths are not applicable for the C

switch and the PST switch.

Figure 11. Switch cable plugs for PST-6 and PST-9.

SAFETY

FOR LIFE

LOAD

HV SW 1

S CONTROL

HV SW 2

KEYWAY

PIN F

VIEW A-A MAX. WIRE SIZE – NO.16 AWG

PST-6 8, 7, & 19 PIN RECEPTACLES PST-9 8 & 19 PIN RECEPTACLES

8 PIN 7 PIN 19 PIN

VIEW A-A

PIN INSERT CONNECTIONS INTO CONTROL

PIN F

KEYWAY

PIN INSERT CONNECTIONS INTO CONTROL

RUBBER GROMMET ACCOMMODATES 1/2" TO 5/8" DIA. CABLE

KEYWAY

MAX. WIRE SIZE – NO.12 AWG

SOCKET INSERT – CONNECTS INTO CONTROL

SOCKET E

RUBBER GROMMET ACCOMMODATES 3/8" TO 1/2" DIA. CABLE

Fault Block Shielded Cable

Table 3 shows the maximum distance between the control and the high-voltage switches for a range of conductor sizes and fault-block settings. The table is based on conductor voltage drop and saturation of the current sensing transformers in the switch. Lower actuating levels and lower multipliers could allow longer lines. However, the limitation on switch control cable lengths, Table 2, preclude their use.

Shielded cable is required between the transfer switches and the S control for operating the fault block accessory.

The shield must be grounded to the equipment housing at both the switch and control ends. Shield connections are made at connector plug pin or socket as shown in Figure 13. This pin mates with the receptacle pin or socket which is grounded in the switch and in the control as shown in Figures 6 and 8.

Type S Automatic Load-Transfer Control Installation, Operation, and Maintenance Instructions

TABLE 3 Fault Block Cable Limitations

Max. Distance in Feet

Phase Between Switch and

Actuating Con- S Control

Current ductor

Level Size For X 8 For X 6 For X 4

(Amps) (AWG) Multi- Multi- Multi-

plier plier plier

640 18 600 1000 1800 640 16 950 1600 2900 640 14 1500 2550 4600 640 12 2400 4000 7300

448 18 1100 1700 – 448 16 1800 2700 – 448 14 2800 4300 – 448 12 4500 6850 –

320 18 1800 –– 320 16 2900 –– 320 14 4600 –– 320 12 7300 ––

Figure 13. Fault block cable plug.

IMPORTANT: Only shielded cable is to be used on fault

block accessory and is mandatory to validate the Cooper Power Systems warranty . Use of a non-shielded cable could result in misoperation.

KEYWAY

PIN G

KEYWAY

SOCKET A

SOLDER #16 AWG JUMPER WIRE FROM SHIELD TO PIN G TO COMPLETE SHIELD CONNECTION

RUBBER GROMMET ACCOMMODATES .50 TO .56 DIA. CABLE

SWITCH END

CONTROL END

STRIP JACKET TO EXPOSE SHIELDING

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