Cooper GWC Series Installation Instructions Manual Download Page 2

SHIPMENT AND ACCEPTANCE

Each sectionalizer is completely assembled, inspected,
tested, and adjusted at the factory and is filled to the cor-
rect level with insulating oil. It is in good condition when
accepted by the carrier for shipment. Upon receipt of a
sectionalizer:

1. Inspect the sectionalizer thoroughly for damage and

loss of parts or oil incurred during shipment. If dam-
age or loss is discovered, file a claim with the carrier
immediately.

2. Check for oil leakage and tighten all bolts that may

have been loosened during shipment, especially the
bolts attaching the head to the tank.

HANDLING AND STORAGE

General

If the sectionalizer is to be stored for an appreciable time
before installation, provide a clean, dry storage area.
Locate the sectionalizer so as to minimize the possibility of
mechanical damage. In particular, protect the bushings and
keep the operator cabinet closed to protect the electronic
control components.

Type GWC Installation Instructions

2

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

Hazard Statements

This manual contains two types of hazard statements:

WARNING: 

Refers to hazards or unsafe practices

which could result in severe personal injury, or

death, and equipment damage.

CAUTION: 

Refers to hazards or unsafe practices

which could result in damage to equipment or in

personal injury.

Safety Instructions

Following are general caution and warning statements
that apply to this equipment. Additional statements, relat-
ed to specific tasks and procedures, are located through-
out the manual.

Additional Information

These instructions do not claim to 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. 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.

!

!

SAFETY INFORMATION

WARNING: 

Follow all locally approved proce-

dures and safety practices when installing or

operating this equipment. Failure to comply may
result in death, severe personal injury, and/or equip-
ment damage.

G111.0

!

WARNING: 

High voltage. Contact with high volt-

age will cause severe personal injury or death.

Follow all locally approved safety procedures when work-
ing around high voltage lines and equipment.

G103.0

!

WARNING: 

This equipment is not intended to

protect human life. Follow all locally approved pro-

cedures and safety practices when installing or operating
this equipment. Failure to comply may result in death,
severe personal injury and/or equipment damage.

G102.0

!

CAUTION: 

Follow all locally approved safety

practices when lifting and mounting the equip-

ment. Use the lifting lugs provided. Lift the load
smoothly and do not allow the load to shift. Improper
lifting may result in equipment damage.

G106.0

!

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: 

Do not operate this equipment out

of oil. Oil is the electrical insulating medium within

this equipment; operation out of oil will result in
flashovers that will damage the equipment and may
cause severe personal injury.

G104.0

!

CAUTION: 

Radiation. At voltages up to the

specified test voltages, the radiation emitted by

the vacuum interrupter is negligible. However, above
these voltages, radiation injurious to personnel may
be emitted. See 

Service Information S280-90-1,

Vacuum Interrupter Radiation Warning, for further
information.

G109.0

CAUTION:

This equipment requires routine inspec-

tion and maintenance to ensure proper operation. If it

is not maintained it may fail to operate properly. Improper
operation may cause equipment damage and possible
personal injury.

G105.0

!

Summary of Contents for GWC Series

Page 1: ...straint 6 Response Time 6 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 Interconnection Wiring Diagram Control 12 Accessories 13 Auxiliary Switch 13 Bushing Type Multi Ratio Current Transformers 14 Operating Instructions 14 ...

Page 2: ...information is desired to satisfy a problem not covered sufficiently for the user s purpose please contact your Cooper Power Systems sales engineer SAFETY INFORMATION WARNING Follow all locally approved proce dures and safety practices when installing or operating this equipment Failure to comply may result in death severe personal injury and or equip ment damage G111 0 WARNING High voltage Contac...

Page 3: ... upon the coordination scheme the sectionalizer will open during the first second and third open interval of the fault interrupting device to isolate per manent faults and confine outages to smaller sections of line The sectionalizer does not interrupt fault current but can be closed into a faulted line It opens during the open inter val of the backup device For this reason it must always be used ...

Page 4: ...he OFF position this switch disables remote con trol but does not prevent automatic operations by means of the control panel switches An extra set of contacts on this switch can provide switch position information to the remote location 115Vac 5amp Breaker Switch In the ON position this switch energizes all 115Vac power to the control cabinet and the operating housing of the sectionalizer Manual C...

Page 5: ...tays down and disables the closing circuit to block closing of the sectionalizer The lever must be returned manually to its UP position to re activate the closing circuit INDICATING DEVICES In addition to the contact position indicator lamps on the con trol panel a contact position indicator and an operations counter are located under the sleet hood on the mechanism operator cabinet The yellow con...

Page 6: ...o values below phase or ground pickup levels Count Restraint The count restraint feature blocks the sectionalizer from generating a count pulse as long as 0 5 amps of load current flows through the sectionalizer Inrush Current Restraint The inrush current restraint feature blocks the phase and ground actuating levels for three seconds after current flow through the sectionalizer has been restored ...

Page 7: ... 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 Use a spreader bar with a fixed attachment point for the hook at the load center If a sling is used it must have a fix...

Page 8: ...Figure 7 Double size Cabinet Mounting Dimensions Figure 6 Standard Cabinet Mounting Dimensions Type GWC Installation Instructions 8 Figure 5 Type GWC Sectionalizer in KA146W3 Pole Mounting Hanger ...

Page 9: ...vent repeated movement due to wind or other out side forces which can damage the cable AUXILIARY POWER All Type GWC sectionalizers require 120Vac auxiliary power to operate The 120Vac supply operates the spring charging motor the closing solenoid the battery charger and the voltage restraint circuit Auxiliary power connections and connections from remote operation are made on a 19 point terminal s...

Page 10: ...e GWC Installation Instructions 10 INTERCONNECTION WIRING DIAGRAM Figures 10 and 11 show the interconnection wiring of both the sectionalizer and the sectionalizer control Figure 9 Main Wiring connections ...

Page 11: ...MBLY VARISTOR CAPACITOR ASSEMBLY GREEN NO 1 NO 2 LS 3 3 NC 4 NC GND 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 GND S P M L F D C A G R N K H E B YELLOW ORANGE GREEN RED BLUE BROWN GVA 197C 2 NOTE CUT JUMPER 2 BLUE BROWN GREEN RED YELLOW ORG BLACK VIOLET G H B A D C F E WHITE WHITE WHITE BLACK BLACK BLACK A Ø B Ø C Ø YEL GROUND C Ø B Ø A Ø RED GROUND SENSING CURRENT TRANSFORMERS REF GWA 17B CONNECTOR PHAS...

Page 12: ... 1 TB1 11 BRN 2 TB2 2 BRN TCB 5A CIRCUIT BREAKER Term To Color 1 TB1 6 RED 2 TB1 11 BRN BP BATTERY PLUG Term To Color BC 2 RED RES 2 BLK X TRANSFORMER 120 25 VAC Term To Color 1 VC A YEL 2 VC B GRN 3 BC 3 BRN 4 BC 4 WHT VC VOLTAGE CHARGING BOARD Term To Color A X 1 YEL B X 2 GRN C GND WHT D EC 18 ORG BC BATTERY CHARGER Term To Color 1 TB2 2 WHT 1 BC 4 WHT 2 TB1 17 RED 2 BP RED 3 TB1 10 BRN 3 X 3 B...

Page 13: ...any cam position 1 Remove the auxiliary switch cover 2 Detach the switch from the switch link by removing the groove pin and C rings 3 Remove the machine screws attaching the assembly to the cabinet 4 With the switch removed unfasten the two hex nuts and lockwashers from the long machine screws that hold the switch sections together 5 Starting with the rear switch section lift the cams off the ope...

Page 14: ...relay contact closes connecting the battery to a 24Vdc trip solenoid in the sectionalizer The trip solenoid breaks the toggle latch mechanism which releases the trip springs and opens the sectionalizer contacts The sectionalizer s opening operation closes a switch which connects 115Vac power to the motor The motor operates a gear reduction and lever mechanism to extend charge both the trip and clo...

Page 15: ...upper right corner of the control cabinet A 120Vac battery charger provides a constant trickle charge to the battery Battery Connections When shipped from the factory the battery is discon nected from the control and its output connector is taped to the side of the battery Plug the connector into the mating receptacle located just below the battery to com plete the battery circuit Battery Check Th...

Page 16: ...s monitor the conti nuity between test points C and D F and H If no conti nuity exists between either set of test points upon clos ing of the sectionalizer apply 6 amps of load current by closing switch S1 for 3 5 seconds Once continuity has been restored open S1 and proceed with the test proce dures Minimum Actuating Current The minimum actuating current can be verified by test ing at the 10 perc...

Page 17: ...ous counts of overcurrents interrupted by downline protective devices by blocking the counting operation as long as a minimum of 0 5 amps of uninterrupted line current flows through the sectionalizer The operation of the count restraint can be verified by superimposing an interruptible overcurrent on a constant minimum line current The sectionalizer will not count or open on the interruption of th...

Page 18: ... number of times The section alizer should open upon the third opening of S2 6 To verify the two counts to open setting set the COUNTS TO OPEN SELECTOR switch to 2 and repeat steps 3 through 5 The sectionalizer should open upon the second opening of S2 Count Reset The count reset feature resets the sectionalizer count to zero whenever current below the actuating level flows through the sectionaliz...

Page 19: ...he appro priate value shown in Column A of Table 9 5 Release S2 to simulate a backup opening with only load current flowing through the sectionaliz er when current was interrupted The sectionaliz er should not open 6 Close S2 and in no more than three seconds adjust the test current to just below twice the appropriate value shown in Column A of Table 9 to simulate an inrush condition Release S2 Th...

Page 20: ...Cooper Power Systems Quality from Cooper Industries P O Box 1640 Waukesha WI 53187 http www cooperpower com 1997 Cooper Power Systems Inc Kyle is a registered trademark of Cooper Industries Inc Printed on Recycled Paper KA2048 126 SAFETY FOR LIFE ...

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