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Cooper GWC Series Installation Instructions Manual

Sectionalizers
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Sectionalizers
Type GWC
Installation Instructions
Applicable to serial number 1088 and above
Figure 1.
Kyle
®
Type GWC Sectionalizer.
Contents
Safety Information .................................................. 2
Hazard Statements .............................................. 2
Safety Instructions ............................................... 2
Additional Information .......................................... 2
Shipment and Acceptance..................................... 2
Handling and Storage ............................................ 2
General ................................................................ 2
Description.............................................................. 3
Ratings .................................................................... 3
Dimensions and Weights....................................... 4
Operating Controls................................................. 4
Remote Control Switch ........................................ 4
115Vac - 5 amp Breaker Switch........................... 4
Manual Control Switch ......................................... 4
One Count to Open Switch .................................. 5
Lamp Test Contact Position Switch ..................... 5
Battery Test Terminals ......................................... 5
Battery Load Test ................................................. 5
Manual Trip Lever ................................................ 5
Indicating Devices .................................................. 5
Settings ................................................................... 5
Minimum Actuating Current ................................. 6
Counts-to-Open ................................................... 6
Count Reset ......................................................... 6
Count Restraint .................................................... 6
Inrush-Current Restraint ...................................... 6
Response Time.................................................... 6
Printed in USA
Installation............................................................... 7
Preliminary Checks .............................................. 7
Lifting the Sectionalizer........................................ 7
Mounting the Sectionalizer .................................. 9
Mounting the Control ........................................... 9
Grounding the Control ......................................... 9
Control Cable ....................................................... 9
Auxiliary Power....................................................... 9
Main Wiring .......................................................... 9
Interconnection Wiring Diagram ........................... 11
Accessories ............................................................13
Auxiliary Switch....................................................13
Operating Instructions ...........................................14
Automatic Operation ............................................14
Manual Electrical Operation.................................15
Manual Non-Electrical Operation .........................15
Control Battery .......................................................15
Battery Connections ............................................15
Battery Check ......................................................15
Testing .....................................................................16
Test Circuit and Equipment ..................................16
Pre-Test Procedures ............................................16
Test Procedures ...................................................16
Post-Test Procedures ..........................................19
Cooper Power Systems
Service Information
S270-21-1
88973KMA

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Summary of Contents for Cooper GWC Series

  • Page 1: Table Of Contents

    Sectionalizers Cooper Power Systems Service Information S270-21-1 Type GWC Installation Instructions Applicable to serial number 1088 and above 88973KMA Figure 1. Kyle ® Type GWC Sectionalizer. Contents Safety Information ..........2 Installation............... 7 Hazard Statements ..........2 Preliminary Checks ..........7 Safety Instructions ..........

  • Page 2: Safety Information

    G103.0 maintenance. When additional information is desired to satisfy a problem not covered sufficiently for the user's purpose, please contact your Cooper Power Systems sales engineer. SHIPMENT AND ACCEPTANCE HANDLING AND STORAGE Each sectionalizer is completely assembled, inspected,...

  • Page 3: Control Battery Charging And Storage

    S270-21-1 Control Battery Charging and Storage val of the backup device. For this reason, it must always be used in series with a fault-interrupting backup protective The control battery is fully charged just prior to shipment and reclosing device. Also, it will reset counts that do not reach is ready for use.

  • Page 4: Dimensions And Weights

    Type GWC Installation Instructions Dimensions and Weights In the OFF position, this switch disables remote con- trol but does not prevent automatic operations (by Figure 2 shows essential dimensional information for a means of the control panel switches). Type GWC sectionalizer, along with its weight and oil An extra set of contacts on this switch can provide capacity.

  • Page 5: One Count To Open Switch

    S270-21-1 One Count-to-Open Switch Once pulled down, the lever stays down and disables the closing circuit to block closing of the sectionalizer. The lever When set to the ONE COUNT TO OPEN position, the section- must be returned manually to its “UP” position to re-activate alizer will open on the completion of the first overcurrent count.

  • Page 6: Minimum Actuating Current

    Type GWC Installation Instructions Minimum Actuating Current Ground current resistors are identified with the ground sym- bol ( ) and the actuating current value in amps. Catalog The minimum actuating current levels for both phase and ground numbers for the available ground current resistors are listed are determined by the selection of the proper plug-in resistors.

  • Page 7: Installation

    S270-21-1 Lifting the Sectionalizer Follow all approved safety practices when making hitches and lifting the equipment. Lift the load smoothly and do not allow the load to shift. This unit has two lifting lugs - both must be used when lifting the sectionalizer. Maximum strength is attained with a vertical lift attached to the lugs.
  • Page 8 Type GWC Installation Instructions Figure 5. Type GWC Sectionalizer in KA146W3 Pole-Mounting Hanger. Figure 6. Figure 7. Standard Cabinet Mounting Dimensions. Double-size Cabinet Mounting Dimensions.

  • Page 9: Mounting The Sectionalizer

    S270-21-1 Mounting the Control spring charging motor, the closing solenoid, the battery charger and the voltage restraint circuit. Remotely mounted, the Electronic Sectionalizer Control Auxiliary power connections and connections from can be located at any convenient, accessible location remote operation are made on a 19-point terminal strip near the sectionalizer.

  • Page 10: Interconnection Wiring Diagram

    Type GWC Installation Instructions Figure 9. Main Wiring connections. INTERCONNECTION WIRING DIAGRAM Figures 10 and 11 show the interconnection wiring of both the sectionalizer and the sectionalizer control.
  • Page 11 S270-21-1 Figure 10. Type GWC sectionalizer interconnection diagram.

  • Page 12: November 1991• Supersedes

    Type GWC Installation Instructions "HTR" HEATER ASSEMBLY Term Color TB1-11 TB2-2 "Z" "TB1" "EC" "BC" BATTERY CHARGER Term Color TB2-2 "RB" BC-4 TB1-17 "BC" BP(+) 3 6 9 TB1-10 "SW3" "SW1" "TCB" BC-1 "VC" "X" "L2" "L1" "SW2" 120-VAC "X" TRANSFORMER 120/25 VAC "TB2"...

  • Page 13: Accessories

    S270-21-1 ACCESSORIES The switch contacts are insulated for 600 volts and have a continuous current rating of 10 amps. Their interrupting rat- ings are shown in Table 7. Auxiliary Switch (KA102GV1) Switching positions can be changed from “a” or “b” opera- The auxiliary switch, mounted to the top of the operator tion by repositioning the cams inside each switch section.

  • Page 14: Bushing-Type, Multi-Ratio Current Transformers

    Type GWC Installation Instructions Figure 13. Cam Positions inside the Auxiliary Switch. Bushing-Type, Multi-Ratio Table 8 Bushing-Type, Multi-Ratio Current Transformer Current Transformers Ratios and Terminal Connection. The multi-ratio current transformers have only one pri- Ratio Terminals mary turn - the bushing rod. They are available with sec- 600:5 X1—X5 ondary windings that provide a primary/secondary-cur-...

  • Page 15: Manual Electrical Operation

    S270-21-1 Type GWC motor-operated sectionalizers do not close CONTROL BATTERY automatically. An electrical signal is required. The closing Power to operate the trip solenoid is provided by a 24- signal is initiated by moving the manual control switch to volt, nickel-cadmium battery located in the back, upper- the “CLOSE”...

  • Page 16: Testing

    Type GWC Installation Instructions 4. Replace and tighten the shorting link between the Test Circuit and Equipment current terminals before removing the ammeter. A suggested test circuit is shown in Figure 16. In this NOTE: Bypass diodes in the battery circuit prevent the control test setup, the test current is obtained by back-feeding a from being disabled if the link is inadvertently left open.
  • Page 17 S280-21-1 7. Close S2 and adjust the test current to the appropri- 6. Release S2 and simulate a backup opening. The ate value shown in Column B of Table 9. sectionalizer should not open. 8. Release S2 to simulate a backup opening. The sec- 7.
  • Page 18 Type GWC Installation Instructions Voltage Restraint Count Reset When energized at 120Vac, the voltage charging board The count reset feature resets the sectionalizer count to provides fast charging times for the trip energy storage zero whenever current below the actuating level flows capacitors.

  • Page 19: Post-Test Procedures

    S270-21-1 Inrush-Current Restraint 6. Close S2 and, in no more than three seconds, adjust the test current to just below twice the The inrush-current restraint feature distinguishes appropriate value shown in Column A of Table 9 between fault currents and inrush currents. For fault to simulate an inrush condition.
  • Page 20 Type GWC Installation Instructions SAFETY FOR LIFE Cooper Power Systems Quality from Cooper Industries P.O. Box 1640, Waukesha, WI 53187 ©1997 Cooper Power Systems, Inc. ® http://www.cooperpower.com/ Kyle is a registered trademark of Cooper Industries, Inc. KA2048-126 Printed on Recycled Paper 3/97...

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