Reclosers
Cooper Power Systems
Service Information
Types RV and WV
Maintenance Instructions
S280-30-9
34.5 Kv • 400 Amp (Type RV) (Serial No. 4111 and after)
34.5 Kv • 560 Amp (Type WV) (Serial No. 901 and after)
NOTICE: This document is also applicable to
Cooper Power Systems product serial numbers
beginning with the characters CP57.
CAUTION
Do not energize this equipment out of oil.
Figure 1.
Type RV oil -interrupting, hydraulically controlled, automatic circuit recloser.
CONTENTS
Introduction .......................................................................2
Description and Operation .............................................2
General ............................................................................2
Manual Operating Handle ..............................................2
Non-Reclosing Lever ......................................................2
Contact Position Indicator ..............................................2
Interrupters ......................................................................2
Closing Solenoid .............................................................3
Closing Solenoid Contactor ...........................................3
Hydraulic Pump and Lockout Piston .............................3
Series Trip Solenoids ......................................................3
Time Delay Unit ...............................................................3
Mechanism Operation .....................................................4
Hydraulic Control System Operation ...........................4
Maintenance.......................................................................5
Frequency of Maintenance ............................................5
Periodic Maintenance Inspection ..................................5
Manual Operation of the Recloser ................................6
Insulation Level Withstand Tests ...................................7
Oil Condition ....................................................................7
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Shop Maintenance Procedures .................................8
Control Lever Overtravel Adjustments ......................8
Bushings ...................................................................8
Interrupters Assembly ...............................................9
Closing Solenoid Contactor ......................................9
Closing Solenoid .......................................................9
Series Trip Solenoid ..................................................10
Solenoid Disassembly .............................................10
Solenoid Replacement ............................................10
Time Delay Unit ..........................................................11
Maintenance .............................................................11
Replacement ............................................................11
Removing Mechanism from Head ............................11
Reinstalling Mechanism into Head ..........................12
Testing .........................................................................12
Service Parts List .......................................................12
Bushing Part (Figure 24) ..........................................13
Head and Tank Assembly (Figure 25) ......................14
Trip Coil and Interrupter Mechanisms (Figure 26) ...16
Closing Solenoid and Hydraulic Control Parts
(Figure 27) ...............................................................18
These instructions do not claim to cover all details or variations in the equipment, procedure, or process described, nor to provide direction 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.
January 1987 ● New Issue
1
Types RV and WV Maintenance Instructions
INTRODUCTION
Service Information S280-30-9 provides the maintenance
instructions for Type RV and WV three-phase, hydraulically controlled, oil reclosers. Included is a general description of the
recloser and its operation, instructions for periodic inspection
and routine maintenance, testing procedures, and instructions
for shop repairs. A service parts list, keyed to exploded-view
drawings of the recloser is included at the back of the manual.
DESCRIPTION AND OPERATION
General
The Type RV and WV reclosers are self-controlled devices that
sense and interrupt distribution system fault currents. They
automatically reclose to restore service if the fault is temporary
and then reset for another programmed sequence of operations. If the fault is permanent the recloser locks open after one,
two, three or four operations, depending upon its operating settings. All three phases open, close, and lock out simultaneously.
Opening sequences of these reclosers can be all fast, all
delayed, or any combination of fast followed by delayed operations; up to the maximum of four operations. On coordinated
systems, fast operations clear temporary faults before branchline fuses can be damaged. Delayed openings allow time for
fuses or other downline protective devices to clear so that permanent faults can be confined to smaller sections of line.
Closing energy, as well as energy to charge the opening
springs, is supplied by a high-voltage closing solenoid which is
momentarily connected phase-to-phase through a high-voltage
contactor.
A “trip-free” yellow operating handle, located under the sleet
hood, will manually lock open the recloser. It cannot manually
close the recloser, but must be in the CLOSED position for the
closing solenoid contactor to operate. A red contact position
indicator, linked to the recloser mechanism but independent of
the yellow operating handle, is also located under the sleet
hood.
Figure 2.
Untanked Type RV recloser.
2
The location of the major components of a RV recloser are
shown in Figure 2. They are similar for the WV recloser. Being
aware of the location of these components and their operation will
provide a quicker and clearer understanding of the recloser maintenance and repair procedures that follow.
Manual Operating Handle
When the recloser operates to lockout, the (yellow) manual operation handle drops down (“trips-free”) from under the sleet hood, to
give a visual indication of recloser lockout. The handle must be
reset manually before the recloser can be closed. Lifting the handle up mechanically closes the closing solenoid contactor, and if
power is available to the closing coil circuit, the closing solenoid
will energize, resetting the recloser.
A closed recloser can be manually opened and locked out by
pulling down the yellow handle.
Non-Reclosing Lever
The non-reclosing lever provides the capability for locking out the
recloser on the first trip operation regardless of the programmed
number of operations to lockout.
Contact Position Indicator
The red arrow-like contact position indicator flag is coupled to the
recloser mechanism to show the position of the main contacts.
When the flag is down, the interrupter contacts are open; when
the flag is up, the contacts are closed.
Interrupters
Circuit opening and fault interruption is achieved by bridge-type
contacts that provide two current breaks in series per phase. The
bayonet-type moving contacts are silverplated tungsten alloy for
erosion resistance and good conductance. The stationary contact
assemblies are tulip-type clusters of silverplated contact fingers
held together by garter springs. The contacts are selfcleaned by
the opening and closing wiping action.
Each current break is provided with a self-generating-type arc
interrupter structure which includes a series of vented chambers.
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S280-30-9
As the contacts open, the arc generates gas pressure in the upper
chamber which blasts oil across the arc and out through the vents.
As a result, arc extinction is fast and arc energy levels do not
increase as fast at higher fault-current levels.
Closing Solenoid
The moving contacts of the interrupters are closed by the closing
solenoid, which also extends the opening springs in the head
mechanism. This solenoid is energized for only a few cycles during each closing operation when it is momentarily connected
across phases B and C.
Closing Solenoid Contactor
Mechanically operated by the head mechanism, the snap-action
contacts of the closing coil contactor complete the high-voltage circuit to the closing solenoid for each closing operation.
Hydraulic Pump and Lockout Piston
The hydraulic pump counts the number of times the recloser trips.
With each trip the pump piston is pushed into the pump cylinder,
oil is forced through the lockout cylinder check valve into the lockout cylinder. This causes the lockout piston to be raised one step.
When the recloser resets the pump piston is pulled back to the
top of the pump cylinder and oil is drawn in through the intake
check valve.
If the recloser trips again the pump piston will actuate causing
the lockout piston to be pushed up another step. This cycle will
repeat until the recloser locks out. Once locked out the quickreset
rod is mechanically raised allowing the lockout piston to quickly
resettle. If the recloser does not lockout, the lockout piston will
resettle gradually (at a rate of approximately 90 seconds per accumulated operation at 25° C).
Figure 3.
Series Trip coil.
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Series Trip Solenoids
Time Delay Unit
The series trip solenoids (Figure 3) are connected in series with
the interrupters, each carries full line current. When line current
exceeds the minimum trip rating of a coil the plunger is drawn into
the solenoid. Near the end of the plunger stroke the recloser
mechanism trips.
When the recloser mechanism is sequenced to the delayed
operation phase, the speed of plunger movement is restrained by
a time-delay unit. The restrained plunger movement provides a
fixed time delay before the recloser mechanism trips.
When the mechanism is sequenced to the delayed operation
phase, the latch assemblies of the trip solenoid plunger linkages are engaged with the arms on the sealed time-delay
units, Figure 4a and 4b. Trip solenoid plunger movement is
then restrained by the time-delay unit, which provides a consistent delay action by forcing hydraulic fluid through a calibrated
orifice within the unit.
Figure 4a.
Time delay unit (old).
Figure 4b.
Time delay unit (new).
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Types RV and WV Maintenance Instructions
MECHANISM OPERATION
The operating mechanism, mounted in the head, opens and
closes the interrupter contacts. Contact opening is initiated by a
series trip solenoid which triggers the trip mechanism to release
the loaded opening springs. Contact closing is performed by the
closing solenoid which also charges the opening springs and
resets the mechanism for the next trip operation. The basic
operation of the mechanism is shown in Figure 5.
With the interrupter contacts closed (a), the opening springs
are fully extended and the mechanism is in the reset state.
When excessive current levels are passing through the series
trip coil the solenoid plunger is actuated. The trip solenoid
plunger operates the toggle latch, releasing the toggle. This
action releases the opening springs (b) which starts the contact
bar assembly in motion. The spring-biased reset lever rotates to
snap the toggle closed. This action of the reset lever also pulls
the plunger out of the closing solenoid. At this point the interrupter contacts are fully open (c) and the mechanism is in the
open state. When the closing solenoid plunger reaches the top
of its stroke it mechanically closes the closing coil contactor
which energizes the closing solenoid. As the plunger is drawn
down into the coil the reset lever is pulled back and latched in
its original position. The interrupter contacts are closed (d) and
the opening springs are extended.The mechanism is now
readyfor another opening operation.
HYDRAULIC CONTROL SYSTEM OPERATION
The hydraulic pump, associated cam, and linkages regulate the
number of fast and delayed operations, count the operations to
lockout, and initiate lockout after a preset numberof operations.
The hydraulic pump (Figure 6) is linked to the closing-solenoid
plunger and is pushed downward with each return operation of
Figure 5.
Head mechanism lever arrangement
4
Figure 6.
Hydraulic pump.
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the plunger. With its downward stroke, the pump forces a
measured amount of oil under the lockout piston (Figure7),
causing it to rise one step. When the closing coil is energized,
the recloser contacts close and the pump returns to its normal position.
Ratings
ELECTRICAL RATINGS
Nominal system voltage, kv
Maximum rated voltage, kv
Rated impulse withstand
voltage (BIL) kv crest
60-Hertz withstand voltage, kv
Dry, one minute
Wet, ten seconds
Rated maximum continuous
current, amps
Type RV
Type WV
34.5
38
34.5
38
150
150
70
60
70
60
400
560
DUTY CYCLE
% of
Interruping
Rating
Maximum
Circuit
X/R Value
15-20
45-55
90-100
4
8
15
Number of Unit Operations
Type RV
Type WV
28
24
10
Total 62
28
20
10
Total 58
MAINTENANCE
Frequency of Maintenance
Figure 7.
Hydraulic pump cross section.
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Because reclosers are applied under widely varying operating and
climatic conditions, maintenance intervals are best determined by
the user, based on actual operating experience. To assure proper
operation, reclosers must be maintained when they have operated
the equivalent of a complete duty cycle and before the dielectric
strength has deteriorated below prescribed levels. In the absence of
specific operating experience, the following procedures are recommended.
• When Type RV and WV reclosers are operated under usual service conditions as defined in ANSI (American National Standards
Institute) C37.60, “Standard Requirements for Automatic Circuit
Reclosers for Alternating Current Systems,” it is recommended
that the following maintenance procedures be performed at the
completion of an equivalent duty cycle.
• However, if the recloser has not completed an equivalent duty
cycle within three years, it is recommended that a Periodic
Maintenance Inspection be performed at that time.
Periodic Maintenance Inspection
The lockout piston is linked to the sequence selector cam
and the lockout bar. Upward movement of the lockout piston
causes the cam to rotate counterclockwise and the lockout
bar to advance one step. The number of fast operations is
preset on the cam. After these operations, the cam engages
the roller and pushes it to the right. A mechanism arm
attached to the roller engages the time-delay mechanism on
each phase. Subsequent operations are then delayed.
When the lockout bar completes its travel, it trips the lockout latch. Another set of linkages and springs then lock the
recloser contacts open. The quick reset rod is raised, allowing
the hydraulic pump and lockout piston assembly to reset
quickly. The entire pump and sequencing mechanism is now
ready for the next full sequence of operations. For temporary
faults that are cleared before the recloser mechanism reaches lockout, the hydraulic pump and lockout piston assembly
resettles gradually (at a rate of approximately 90 seconds per
operation at 25° C) to reset the recloser mechanism.
Each periodic maintenance inspection at the completion of an equivalent duty cycle should include at least the following:
1. Bypass and remove the recloser from service.
2. Thoroughly clean exterior of unit.
3. Inspect external components.
A. Check for broken or cracked bushings. Replace as necessary. (See page 8 for procedure.)
B. Check for paint scratches and other mechanical damage;
paint to inhibit corrosion.
C. Note counter reading and enter in the record log.
4. Perform a dielectric withstand test to check the insulation
level of the recloser. (See page 7 for procedure.)
5. Manually operate mechanism; operation should match configuration noted on the data plate.
A. Partially untank unit and support head and mechanism
assembly with clean wooden blocks.
B. Use manual closing tool to close interrupters.
C. Pull down on strip solenoid trip links until mechanism trips.
NOTE: The force required to pull down the trip-links will be
increased when the time delay units are engaged.
D. Repeat steps B and C until lockout has been reached (yellow
handle will drop).
6. Untank the recloser to expose the internal components.
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Types RV and WV Maintenance Instructions
CAUTION
Be sure the recloser is open (yellow operating handle
under the sleet hood is down) before untanking, so that the
mechanism can not be accidently tripped while out of oil.
7. Clean all internal components.
A. Remove all traces of carbon by wiping with a clean, lintfree cloth.
B. Flush the mechanism with clean transformer oil.
CAUTION
Never use volatile solutions, detergents, or water-soluble
cleaners.
8. Remove bushings, clean and inspect.
NOTE: DO NOT dismantle oil filled bushings.
9. Replace all external seals and gaskets.
10. Inspect mechanism for cracks, carbon tracking, flashovers
or other damage. Repair or replace as required.
11. Check the condition of the closing solenoid contactor contact tips. If the contact tips are eroded replace entire contactor assembly. (See page 9 for replacement procedure.)
12. Inspect closing coil for cracks or other damage.
13. Inspect series trip solenoid.
14. Remove the moving contact assemblies from the bottom of
the contact lift rod, and check the erosion of the contact
load surfaces.
A. Arcing tips of the moving contacts can experience considerable erosion before replacement is necessary.
Slight pitting and discoloration can be dressed with a
piece of crocus cloth.
B. However, erosion of the contact load current surfaces
necessitates replacement of the entire interrupter
assembly.
C. Figure 8 shows a moving contact after it has experienced
severe interrupting duty and a new contact for comparison. The used contact has reached the condition where
interrupter replacement is necessary.
15. Reinstall bushings, use new gaskets. (See page 8 for installation procedures.)
16. Drain the tank, and clean out all sludge and carbon deposits. If
oil is to be reused it must be filtered and the dielectric strength
checked.
17. Fill with new, clean insulating oil up to 2-1/4 inches below the
top of the tank flange. Tank capacity is approximately 41 U.S.
gallons. See Oil Condition on page 7.
18. Clean the head gasket seat and retank the recloser.
A. Move the yellow operating handle under the sleet hood to
the up position to avoid any possible binding during tanking.
B. Replace the head bolts and tighten to 35-55 ft-lbs. torque.
Apply clamping force gradually and equally, in rotation, to
each bolt to achieve an evenly distributed gasket sealing
pressure.
19. Check the oil level with the dipstick in the head and adjust the
level to the upper line on the dipstick.
NOTE: lf the recloser is equipped with an oil-sight gage, the oil level
should be above the sight gage. If the oil surface line is visible in the
window, add oil to raise the level to the upper line on the dipstick.
20. Perform high-potential insulation withstand test (page ) to
make sure the dielectric clearances within the tank have not
been compromised. Also, use a suitable tester to verify that
the recloser is operating per data plate specifications.
Manual Operation of the Recloser
The recloser may be closed and opened manually while the
mechanism is either in or out of oil.
MECHANISM IN OIL
For a tanked recloser (mechanism immersed in oil) use the
following manual operating procedure.
1. To close the recloser.
A. Remove the closing tool port cover and gasket from the side
of the head casting.
B. Insert the KA90R T-handle closing tool (furnished as an
accessory) into the closing tool port (Figure 9) and engage
the pin on the closing shaft.
Figure 9.
Manually closing recloser.
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Figure 8.
Left: new moving conact; right: contact after one full duty
cycle.
6
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C. Lift up the yellow operating handle under the sleet hood to reset
the mechanism.
D. Turn the closing tool one-quarter turn clockwise to close the
main contacts.
S280-30-9
CAUTION
Never use the KA90R closing tool to close an energized
recloser. Forcing the tool beyond the mechanism stop may
shear the pin on the closing shaft.
2. To open the recloser.
A. Pull down the yellow operating handle to trip open the
recloser.
NOTE: If the mechanism is partially untanked, and properly supported, the recloser can be tripped open by pulling down on the
series trip solenoid linkage.
MECHANISM OUT OF OIL
To operate the mechanism out of oil, proceed as follows:
1. To close the recloser.
A. If the mechanism is still mounted in the head use the procedure for a tanked recloser above (Mechanism in 0il).
B. If the mechanism is removed from the head turn the trip
reset shaft (Figure 10) with a pair of needlenose pliers to
reset the mechanism, then turn the closing shaft clockwise with the closing tool to close the main contacts.
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Figure 11.
Trip lever releases mechanism when opening recloser out of
oil.
Figure 10.
Resetting trip reset.
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CAUTION
The mechanism may be damaged if it is "quick-tripped"
with the yellow operating handle while out of oil.
2. To open the recloser contacts while the mechanism is out of
oil, proceed as follows:
A. Using the T-handle closing tool turn the closing shaft
clockwise and hold against the stop.
B. Release the trip lever (Figure 11 ) by moving it to the right.
C. Then slowly allow the closing tool to rotate counterclockwise to open the main contacts.
NOTE: This procedure requires two people; one to operate the
closing tool, the other to operate the trip lever.
Insulation Level Withstand Tests
High-potential withstand tests provide information on the dielectric condition of the recloser. Testing is performed at 75% of the
rated low-frequency withstand voltage (52.5 kv).
TEST 1: Proceed as follows:
1. Manually close main contacts of recloser (see page 6 for procedure).
2. Ground recloser tank and head.
3. Connect all three source-side bushings (1, 3, 5) together.
4. Apply proper test voltage to source-side bushings.
5. The recloser should withstand the test voltage for 60 seconds.
TEST 2: Proceed as follows:
1. Manually close main contacts of the recloser (see page 6 for
procedure).
2. Ground recloser tank and head.
3. Ground Phase A (bushing 2) and Phase C (bushing 6).
4. Apply proper test voltage to Phase B (bushing 3).
5. The recloser should withstand the test voltage for 60 seconds.
TEST 3: Proceed as follows:
1. Open main contacts of recloser (see page 6 for procedure).
2. Ground recloser tank and head.
3. Connect and ground all three load-side bushings (2, 4, 6).
4. Connect all three source-side bushings (1, 3, 5).
5. Apply proper test voltage to source-side bushings.
6. The recloser should withstand the test voltage for 60 seconds.
7. Reverse the connections: ground source-side bushings (1, 3,
5); apply test voltage to load-side bushings (2, 4, 6) for 60 sec
onds.
8. The recloser should withstand the test voltage for 60 seconds.
TEST RESULTS: These high potential withstand tests provide
information on the dielectric condition of the recloser and the
integrity of the interrupters.
A. If the recloser passes the closed-contacts tests (Tests 1 and 2)
but fails the open-contacts test (Test 3) a deterioration of one
or more of the interrupters is likely to be the cause. Check
each interrupter individually to determine the failed phase or
phases, and replace the interrupter(s). Retest to confirm the
repair.
B. If the recloser fails the closed-contacts tests (Test 1 and 2) the
cause is likely to be a diminished electrical clearance or a
failed insulation. After correcting the problem, retest to confirm
the repair.
Oil Condition
Oil provides the internal insulation barrier between phases and
from phase to ground, and must be replaced before it deteriorates
below a safe dielectric level. Replace the oil if its dielectric
strength falls below 22 kv.
7
Types RV and WV Maintenance Instructions
New oil should always be filtered before use, even though it is
obtained from an approved source. Passing the oil through a
blotter press will remove free water and solid contaminants such
as rust, dirt, and lint. Keep aeration to a minimum during filtering
to prevent moisture in the air from condensing in the oil and lowering its dielectric strength.
Used oil must be treated before reusing. FiItering may remove
absorbed and free water and other contaminants to raise the
dielectric strength to acceptable levels. However, filtering does
not always remove water-absorbing contaminants and the
dielectric strength may fall rapidly after being returned to service.
Therefore the recloser should be filled with new oil, or oil that has
been restored to like-new condition. Oil used in these reclosers
conforms to ASTM Standard D3487, Type l; its property limits
are shown in Reference Data R280-90-1, “Oil Specifications and
Tests.”
SHOP MAINTENANCE PROCEDURES
The operations described in this section should be performed
under the cleanest conditions possible. The repair work, except
for bushing replacement, will be simplified if the work bench is
arranged so the mechanism/head assembly can be inverted
(bushings down). No special tools are required for any of the
repair procedures.
Control Lever Overtravel Adjustment
Check for proper adjustment of the control lever by first removing
the sleet hood cover to expose the control lever. From the OPEN
position, slowly push the control lever toward the CLOSED position. As the lever is pushed up, latching of the recloser will be
felt. At this point the dimension between the top of the control
lever and the underside of the sleet hood should be 1/4 inch
(Figure 12).
If the control lever is not adjusted properly, remove the C-ring
and slide the control lever from the shaft. Rotate the control lever
clockwise to reduce the dimension or counterclockwise to
increase the dimension. Slide the control lever back onto the
shaft and recheck the dimension. When the proper dimension
has been obtained replace the C-ring.
Figure 13.
Bushing replacement.
1. Disconnect bushing lead from bottom end of bushing rod.
2. Loosen the clamp securing the corona shield (Figure 14).
Push shield up bushing to expose O-ring, remove O-ring.
Figure 12.
Overtravel adjustment of control lever.
Bushings
Bushing maintenance generalIy consists of a thorough cleaning
and a careful examination for chips, cracks, or other mechanical
damage during the periodic maintenance inspection. Bushings
must be replaced whenever damage is discovered.
The bushings used on Type RV and WV reclosers are oil-filled.
The special fixtures and procedures required to assemble these
bushings is beyond the scope of normal shop maintenance
repair. Therefore if an oil bushing is in any way damaged, the
complete bushing assembly must be replaced. Refer to Figure
13 and proceed as follows:
8
Figure 14.
Corona shield.
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3. Remove the three hex head capscrews and clamps that
secure the bushing to the head and pull corona shield and
clamp off bottom of bushing as it is lifted out.
4. Remove and discard the lower bushing gasket.
5. Twist off the split aluminum clamping ring from the old
bushing and install on the new bushing, if it is in good
condition—replace if damaged.
NOTE: The clamping ring cushions and distributes the pressure
between the ceramic and the clamps. DO NOT OMIT.
6. Install the new bushing through the head and slide corona
shield and clamp over bushing.
7. Position bushing with the stud end of the terminal pointing
outward.
8. Position the clamping ring with the split centered between
two clamping bolts.
9. Reassemble the bushing to the head casting. Tighten the
bolts evenly, a little at a time, to a torque of 10-15 ft-lbs.
NOTE: Clamping forces must be applied gradually and equally in
rotation to each bolt. This results in an evenly distributed gasket
sealing pressure.
10. Install corona shield O-ring into groove on bushing.
11. Slide corona shield down so inside edge is flush with
mechanism frame. Position clamp approximately 1/4”
above edge of the shield and secure tightly.
12. Reconnect the lead to the bushing rod.
Interrupter Assembly
1. Using a 1/2-inch thin wall socket, remove the vibration-proof
hex nut that secures the contact yoke to the lift rod. Gently
tap contact arm to remove contacts from the lift rod.
2. Remove the terminal bolt from the top of each stationary
contact assembly.
3. Remove hex nuts, flat washers, and lock washers that
secure the interrupter assembly to the stringers.
4. Slide the arc interrupter assembly (Figure 15) off.
5. Place the replacement interrupter assembly into position and
secure it with original hardware.
6. InstalI the terminal bolts into each stationary contact assembly.
7. Place the movable contact assembly onto the lift rod and install a
new vibration-proof hex nut.
NOTE: It is recommended that vibration-proof nuts not be reused.
Closing Solenoid Contactor
If the contacts are badly burned or eroded, the entire contactor
must be replaced. See Figure 16 and proceed as follows:
1. Unhook the two toggle springs from the pin that connects the
operating shaft of the contactor to the toggle arm.
2. Remove the C-type retaining rings and withdraw the pin.
3. Disconnect the two coil leads from the contactor.
NOTE: Reattach the lockwasher and hex nut to the contactor terminal
immediately after disconnecting the coil lead to prevent loss of moving
contact parts which are attached to the support plate with the same
hardware.
4. Disconnect the two fuse leads from the contactor.
5. Remove three hex head capscrews and lockwasher that attach
the contactor to the underside of the recloser mechanism frame
and remove contactor.
6. Install new contactor by reversing the disassembly procedure.
Use new C-rings to secure the toggle-link pin.
7. Connect solenoid coil leads to lower terminals.
8. Connect fuse leads to upper terminals.
NOTE: Be sure coil and fuse leads are positioned for maximum clearance to grounded parts.
NOTE: The arc interrupter and contact assembly and the moving
contact assembly are both replaced as assemblies. They should
both be replaced at the same time.
Figure 16.
Replacing closing coil contactor
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Closing Solenoid
Figure 15.
Interrupter assembly.
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The closing solenoid coil is connected phase-to-phase and is rated
to operate at full system voltage. It is protected with two fuses, one
on either side. A data plate attached to the recloser head between
source side bushings 3 and 5 provides the coil connection information.
9
Types RV and WV Maintenance Instructions
If the solenoid coil must be replaced, due to damage or
change in operating voltage, refer to Figure 17 and proceed as
follows:
1. Disconnect the two coil leads from closing solenoid contactor.
NOTE: Reattach the lockwashers and nut to the contactor terminal
immediately after disconnecting the coil lead to prevent loss of parts
of the moving contact arm assembly which is attached to the support plate with the same hardware.
SERIES TRIP SOLENOID
The continuous current rating and the trip current rating of the
recloser can tee charged by installing new coils in the series trip
solenoids. Tripping occurs at about 200% of the continuous current rating of the standard coil and at about 140% when the alternate (400X or 560X) coils are used. The maximum interrupting rating of the recloser is dependent upon the continuous current rating
of the series trip coil.
Two different coil replacement kits are required. One for Phase
A and Phase B solenoids and another for Phase C (the interrupter
furthest away from the sleet hood) which has an opposite wind
because it mounts differently on the interrupter. The same basic
replacement procedure is used for either type coil.
Solenoid Disassembly
1. Remove cotter pin; slide out the groove pin and spacer that
connects the insulated operating links to the solenoid plunger
(Figure 18).
2. Remove bolt that fastens the outer coil terminal and the bushing lead.
3. Remove the capscrew that connects the inner coil terminal
strap to the interrupter current interchange.
4. Remove elastic stop nut and flat washer that secure solenoid
frame to the upper current exchange mounting board. Lift
entire solenoid assembly off board.
5. Remove solenoid plunger, guide clips, guide channels and
upper coil washer.
6. Lift coil slightly and pull out of the solenoid frame.
7. Replace any damaged parts at this time.
Figure 17
Parts involved in solenoid coil replacement.
86828KMA
2. Remove four capscrews and lockwashers which attach base
plate to bottom of solenoid frame posts and lower coil and
base plate.
3. Remove coil from the base plate and discard coil gasket.
4. Using a new coil gasket, install new closing coil on the base
plate.
NOTE: A new coil gasket is included in the closing coil replacement
kit.
5. Reassemble base plate to solenoid frame posts and connect
coil leads to the contact or terminals. Make sure the coil
leads clear the solenoid frame by at least 1/2-inch.
6. The closing coil replacement kit includes two new coil fuses
which should be installed with the new coil.
7. The closing coil replacement kit also includes a new voltage
date plate. Replace the plate on the sleet hood of the recloser head if the operating voltage of the recloser is being
changed.
NOTE: RV reclosers, with 34.5 kv closing coil, between serial number 4110 have a rigid tube insulator on the long coil lead.
Replacement coils for units below serial number 4110 include additional parts to modify the solenoid assembly to accommodate the
rigid insulating tube. Installation instructions are included with the kit.
10
Figure 18.
Series trip solenoid removal.
85662KMA
Solenoid Replacement
Check lower coil washer before installing new coils. For coils
rated 280 amperes and below the upper and lower coil washers
are identical. For 400 and 560 ampere rated coils, the lower
washer requires a larger center slot. The same upper washer is
used with all coil sizes.
1. Pass upper insulating washer over terminal strap and align its
slot with the coil slot (Figure 19).
2. Insert coil into the frame and slide the upper coil washer into
position.
3. Replace in order the guide channels, guide clips and plunger.
4. Place the solenoid assembly back on the mounting board and
secure it with the flat washers and elastic stop nuts.
S280-30-9
Figure 19.
Assembling solenoid series trip coil.
82023KMA
5. Connect operating links to the solenoid plunger with the
groove pin, spacer and cotter pin.
6. Connect the coiI terminals to the current interchange and
the bushing lead to complete the assembly.
TIME DELAY UNIT
The recloser is equipped with hydraulically-operated time
delay units on each phase. These provide the different timecurrent characteristic (TCC) curves, as shown in Reference
Data R28091-6. Each unit can provide either of two-time
delay characteristic curves, but not all four (KA1194R1 provides B and C curves and KA1194R2 provides D and E
curves).
When the mechanism is sequenced to the delayed operation phase, the latch assembly of the trip-coil plunger linkage
is engaged with the arm of the time-delay unit, this provides
consistent delay action by forcing hydraulic fluid through an
orifice in the unit. Special aircraft-type fluid is used to minimize temperature effects.
Figure 20.
Series trip solenoid removal.
86780KMA
Removing Mechanism from Head
To gain access to components located in or on the main frame, thefollowing procedure maybe used to remove the mechanism from the
head.
NOTE: These procedures will be simplified if the untanked head and mechanism assembly can be inverted (bushings down). The unit can be supported
on its bushings.
1. Disconnect all six bushing leads from the ends of the bushings.
2. Disconnect the lockout lever and contact position indicator shafts
by disengaging the spring loaded couplers and locking them in
the disengaged position, Figure 21.
Maintenance
Maintenance to the time delay units is limited to checking the
fluid level in the units. Some loss of fluid is normal, therefore
this inspection should be made each time periodic maintenance is performed.
To check the fluid level, remove the socket-head filler plug
located on the side of the unit. Add enough fluid to bring the
level up to the filler plug hole. Avoid introducing dirt, lint or
any other foreign material when filling the unit as this can
plug the orifice and cause erratic time-delay action.
NOTE: A special fluid replacement kit, catalog number KA806R2, is
available. The kit consists of approximately 60 cc (2 US fl oz.) of the
special hydraulic fluid in an eye-dropper bottle.
Replacment
Replacement time-delay kits include a factory calibrated time
delay, four flat head screws and a minimum-trip calibration
spring. Remove the malfunctioning unit and install the
replacement in its place (see Figure 20).
The minimum trip setting of the recloser must be recalibrated by adjusting the spring tension whenever a new timedelay unit is installed.
Figure 21.
Disconnect couplers.
86830KMA
11
Types RV and WV Maintenance Instructions
3. Disconnect any accessories, such as a ground trip solenoid,
at their terminals.
4. If the recloser is equipped with the auxiliary switch accessory,
remove the C or E-ring and washer, Figure 22, and disconnect the operating lever of the switch from the recloser
mechanism.
Reinstalling Mechanism into Head
To reinstall the recloser mechanism assembly into the head, the
following procedure may be used.
1. Install the couplers on the lockout lever and contact position
indicator shafts. Lock them in the disengaged position.
2. Carefully lower the mechanism assembly onto the six pipe
spacers which have been positioned over the mounting holes
in the casting.
3. Install the six socket head bolts and tighten evenly to avoid
any binding of the mechanism.
NOTE: Replace the hex head bolts in the bottom of the closing
solenoid frame if eye-bolts were used for handling the recloser mechanism (Figure 23)
4. Re-engage the lockout lever and contact position indicator
shaft by releasing the shaft couplers.
5. Reconnect the operating lever of the auxiliary switch (if used)
to the mechanism and secure with the washer and E-ring
(Figure 23).
6. Reconnect the bushing leads to the end of the bushings.
TESTING
Procedures for testing the Type RV and WV reclosers are included in the Installation Manual S280-30-1.
Figure 22.
Remove E-ring to disconnect auxiliary operating lever.
86831KMA
5. Remove the six socket head bolts and lockwashers that
secure the frame to the head casting and carefully lift the
mechanism from the head. Six long pipe spacers will be
released when the mechanism is lifted.
NOTE: By temporarily substituting eye-bolts for two of the hex head
bolts in the bottom of the closing solenoid frame, the mechanism can
be easily lifted and handled with a hoist (Figure 23).
6. Remove couplers from contact position indicator and lockout
lever shafts.
Figure 23.
Lifting mechansim in and out of the head.
12
86831KMA
SERVICE PARTS LIST
The service parts and hardware listed and illustrated include only
those parts and assemblies usually furnished for repair or
involved in the maintenance procedures described in this manual.
Further breakdown of listed assemblies is not recommended.
Dimensions of all common hardware parts have been carefully
checked so that they may be locally acquired. The suffix letter of
the 14 character catalog number for common hardware parts
codes the plating of the part:
A - No plating; raw material
H - Silver
M- Black oxide
Q- Cadmium + zinc + chromate
Y - Zinc + chromate
Z - Electro zinc + bronze irridite
A hardware kit, Catalog No. KA849R1, contains an assortment
of roll pins, cotter pins, retaining rings, stop nuts, etc.—common
hardware parts used in Cooper Power System's reclosers that
may not be readily locally available.
To assure correct receipt of any parts order, always include
recloser type and serial number. Because of Cooper Power
System's continuous improvement policy, there may be instances
where the parts furnished may not look exactly the same as the
parts ordered. However, they will be completely interchangeable
without any rework of the recloser.
AlI parts carry the same warranty as any whole item of
switchgear, i.e. against defects in material or workmanship within
a period of one year from date of shipment.
S280-30-9
Figure 24.
Bushing Parts.
Bushing Parts (Figure 24)
Item
No.
1
2
3
4
5
Description
Bushing Assembly
Type RV
Below Serial No. 9000
(includes: bushing corona
shield (10), shield clamp (9),
O-ring (11) and conductive
gasket (8).
Standard bushing
Standard bushing with BCT
accy.
Above Serial No. 8999
Standard bushing
Standard bushing with BCT
accy.
Type WV
Below Serial No. 1700
(includes: bushing corona
shield (10), shield clamp (9),
O-ring (11) and conductive
gasket (8).
Standard bushing
Standard bushing with BCT
accy.
Above Serial No. 1699
Standard bushing
Standard bushing with BCT
accy.
Hex jam nut, 1/2-20, brass
Flat washer
Split lockwasher, med. 1/2
bronze
Capscrew, hex hd, 3/8-16 x
2-1/4, stl.
Catalog
Number
Qty.
Assy.
KA899R1
6
KA899R1
6
KA56RV1
6
KA56RV2
6
KA841W1
6
KA841W2
6
KA56RV3
6
KA56RV4
K880725320050H
KP2028A903
6
12
12
K900830050000A
6
K730101127225Q
18
Item
No.
Description
Catalog
Number
Qty.
Assy.
6 Bushing clamp
KP1109R
18
7 Clamping ring
KP1111R
6
8 Lower bushing gasket
KA1193R
6
9 Clamp
KP109WV
6
10 Corona shield
KP582RV900
6
11 O-ring
KP2000A19
6
The following parts are applicable to the bushing current transformer
accessory.
12 Bushing spacer
KP275W1
1
13 Capscrew, hex hd, 3/8-16 x
1-7/8, stl.
K730101157187Q
3
14 Transformer clamping flange
KP170W1
1
15 Flange gasket
KP2090A73
2
16 Replacement current transformer
600:5 multi-ratio
KA159W1S
1
1200:5 multi-ratio
KA132W
1
17 CT washer, used with plastic
housing CT’s
KP312W
1
18 Capscrew, hex hd, 3/8-16 x 1
stl.
K730101137100Q
3
19 Transformer clamping sleeve
K P169W1
1
20 O-ring gasket, used with
transformer clamping sleeve
that has machined groove.
Old style clamping sleeve,
without groove, use
KP2090A66.
KP2000A64
1
21 Hex nut, 3/8-16, stl.
K880201116037Q
3
22 Stud
KP3149A40
1
13
Types RV and WV Maintenance Instructions
Figure 25.
Head and tank assemblies.
14
S280-30-9
Head and Tank Assemblies (Figure 25)
Item
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Description
Cover plate
Gasket
Capscrew hex hd, 1/4-20
X 3/4, stl
Split lockwasher, med, 1/4, stl
Dipstick
O-ring gasket
Closing coil instruction plate
Self-tapping screw, Type F,
#2 x 3/16. sst
Capscrew hex hd, 1/4-20 x 5/8.
stl
Manual closing tool access
cover plate
Cover plate gasket
Capscrew, hex hd, 5/8-11 x
1-1/2, stl
Split lockwasher, med, 5/8’ stl
Lifting lug
Ground connector
Head casting, includes control
shaft bushings
Head gasket
Nameplate
Type RV
Type WV
Type VWV38
Voltage data plate
Coil data plate
Operating data plate
Self-tapping screw, Type Z,
#4 x 3/16 sst
Sleet hood cover plate
Thread cutting screw, Type T,
#12 x 1/2, sst
Contact indicator plate
Handle designation plate
Self-tapping screw, Type F,
2-56 x 3/16, sst
Manual operating handle
assembly
Spacer
Lever and split shaft assembly
Spacer
Spacer
Item
No.
Catalog
Number
Quan.
Req’d
KP609R
KP611R
2
2
33
34
K730101125075Q
K900801025000Z
KA363R
KP2000A9
KP2312R
8
8
1
1
1
35
36
K751515102018A
2
K730101125062Q
2
KP246R1
KP2000A12
1
1
39
40
41
42
43
44
45
K730101162150Q
K900801062000Z
KP456H2
KA392R
2
2
2
1
KA840R
KP2103A8
1
1
KP564RV
KP113WV
KRW173F
KP567R
KP2119A9
KP1371R
1
1
1
1
1
1
K801515004018A
K283R
8
1
K781515112050A
KP1067R
KP390R
5
1
1
K751515102018A
4
KA477R
KP3009A39
KA313R
KP3011A5
KP3011A7
1
1
1
1
1
37
38
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
Description
Lever and split shaft assembly
Retaining ring, Type C, 5/16.
stl, WA516
Roll pin,1/8x3/4
Retaining ring, Type C,1/4
stl WA514
One shot link and pin assembly
Retaining ring, Type C, 3/8.
stl, WA518
Spacer
Groove pin
One shot handle assembly
Spacer
Spacer
Indicator and support assembly
Retaining ring, Type C, 3/16,
stl, WA510
Groove Pin
Spacer
Link
Shaft and lever assembly
Pin
Spacer
Flatwasher, #14S brass
Cotter pin, 3/32 X 1/2 stl
Roll pin, 3/32 X 1/2, stl
Counter
Self-tapping screw, Type F,
6-32 x 3/8. sst
Bracket
Self-tapping screw, Type Z
#10 x 3/8. sst
Capscrew, hex hd, 1/2-13 x 3-1/4,
stl
Flatwasher
Pipe plug, 1”, sq hd
Tank
Pipe plug 1/2”, sq hd
Oil sampling and drain valve
assy.
Tank liner kit
Tank data plate
Catalog
Number
Ouan.
Req’d.
KA312R
1
K970901312000M
K970801125075C
1
1
K970801250000M
KA505R
2
1
K970801375000M
KP3013A91
KP3126A4
KA504R
KP3010A5
KP3013A38
KA317R
2
1
1
1
1
2
1
K970915188000A
KP3123A12
K3006A9
KP1059R
KA319R
KP3190A11
KP3007A8
K900525026056A
K970801093050A
K970801093050C
KA28C0A2
3
1
1
1
1
1
1
1
1
1
1
K751515106037A
KP1598R
2
1
K801515010037A
2
K730101150325Q
KP2028A23
KP2007A4
KA88W
KP2007A3
10
10
1
1
1
KA809R
KA867R
KP200W
1
1
1
15
Types RV and WV Maintenance Instructions
Figure 26.
Trip coil and interrupter mechanisms.
16
S280-30-9
Trip Coil and Interrrupter Mechanisms (Figure 26)
Item
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Description
Time-delay unit replacement kit
complete (includes attaching
screws)
For B and C curves
For D and E curves
Trip link assembly, complete
Torsion spring
Roll pin, 1/8 X 3/4, stl
Trip lever stop
Retaining ring, Type C,
5/16, stl, WA516
Flat washer, 5/16, AN, stl
Groove pin
Capscrew with lockwasher
1/4-20 x 1/2, stl
Contact rod guide
Type RV
Type WV
Moving contact rod assembly
Type RV, phases A & B
Type RV, phase C
Type WV, phases A & B
Below Serial No. 1300
Serial No. 1300 and above
Type WV, phase C
Below Serial No. 1300
Serial No. 1300 and above
Pin
Retaining ring, Type C,1/4, stl,
WA514
Contactor toggle spring
Groove pin
Closing solenoid contactor
Capscrew, hex hd, with lock
washer,1/4-20 x 1/2, stl
Machine screw, rd hd,1/4-20 x
1/2, brass
Hex nut, 1/4-20, brass
Split lockwasher, med 1/4 brz
Closing coil fuse assembly
(also included in closing coil
replacement kit, item 36,
Figure 27)
2.4-3.3 kv (2 red color bands)
4.15-6 kv (black color band)
7.2-11 kv (yellow color band)
12-14.4 kv, 17.0 kv, 34.5 kv
(red color band)
Spacer
Capscrew, hex hd,1/4-20 x 1,
brass
Lead
Phase A & B
Phase C
Hex bolt, 3/8-24 X 7/8, silicon brz
Washer, 3/8, brass
Lockwasher, 3/8, brz
Hex nut 3/8-24, brass
Cotter pin, 1/16 X 1/2, stl
Pin
Capscrew, hex hd, 3/8-24 X 7/8,
silver brz
Coil gap (used only on coils
below 100 amp)
Phases A & B
Phase C
Catalog
Number
Quan.
Req’d.
Item
No.
33
34
KA1194R1
KA1194R2
KA161R
KP576R
K970801125075M
KP577R
3
3
3
3
3
3
K970901312000M
K900201032056Z
KP3125A2
6
6
3
K830101125050A
6
KP346W1
KP346W2
3
3
KA44RV2
KA44RV1
2
1
KA29WV1
KA165W2
2
2
35
36
37
38
39
40
41
42
43
44
KA29WV1
KA165W1
KP517RV
1
1
3
K970901250000A
KP141R1
KP1306R
KA430R3
13
2
1
1
K8830101125050A
3
K721525125050A
K881025120025A
K900830025000A
3
9
7
2
KA259R904
KA259R901
KA259R902
KA259R903
KP3009A13
2
K730115125100A
2
KP148WE
KP149WE
K700133337087A
K900525039087H
K900830037000A
K880725324037H
K970501062050A
KP3114A1
2
1
3
3
9
3
3
3
K700122227087A
6
KP13RV2
KP13RV1
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
Description
Capscrew, hex hd,1/4-20 x 7/8,
stl
Self-tapping screw, rd hd, Type
F, #2 x 5/16, stl
Eyelet
Plunger guide
Plunger guide
Plunger assembly
Solenoid frame assembly
Coil washer (see item 43)
Barrier
Series coil replacement kit
(includes item 20, Figure 25)
(Add coil rating as suffix
to catalog number)
Type RV
Phases A & B
Phase C
Type WV
Phases A & B
Phase C
Coil washer (used instead of
KP318P on top of 400 and 560
amp coils only)
Interrupter assembly
Type RV
Phases A & B
Phase C
Type WV
Phases A & B below serial
no. 1300
Phase C below serial no.
1300
Phases A & B serial no.
1300 and above
Phase C serial no. 1300 and
above
Roll pin, 1/8 X 5/8, stl
Moving contact assembly
Type RV
Type WV
Spacer
Flat washer, 5/16, stl
Stop nut, 5/16
Flat washer, 1/4, stl
Stopnut, 1/4-20
Flat washer, 3/8, stl
Lockwasher, med, 3/8,, stl
Hex nut,3/8-16, stl
Stringer assembly
Insulator
Flat washer, #24S, brass
Lead
Type RV (4 per phase)
Type WV (6 per phase)
Spacer
Insulator
Toggle assembly
Type RV
S/N 7399 and below
S/N 7400 and above
Type WV
S/N 1300 and below
S/N 1301 and above
Catalog
Number
Quan.
Req’d.
K730101125087A
6
K751501102031A
KP1351 R
KP622R
KP312R
KA604R
KA603R
KP318R
KP1684R
6
6
6
6
3
3
6 or 3
3
KA869R2___
KA869R1___
2
1
KA835W2 ___
KA835W1___
2
1
KP1075R
3
KA49RV2
KA49RV1
2
1
KA28WV2
2
KA28WV1
1
KA168W2
2
KA168W1
K970801125062M
1
3
KA46RV1
KA105DV1
KP1505R
K900201031000Z
KP2020A4
K900201025000A
KP2020A3
K900201037000A
K90801037000Z
K880201116037A
KA62R
KP3230A14
K900525039087H
3
3
3
3
3
6
6
9
9
9
9
9
3
KP3250A1
KP3250A1
K P3011A39
KP2104A9
12
18
3
3
1
KA450R3
KA166W
1
1
KA450R3
KA166W
1
1
2
1
17
Types RV and WV Maintenance Instructions
Figure 27.
Closing solenoid and hydraulic control parts.
18
S280-30-9
Closing Solenoid and Hydraulic Contol Parts(Figure 27)
Item
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Description
Capscrew, hex socket hd,
1/2-13 x 4-1/2, stl
Split lockwasher, med,1/2, stl
Spacer
Counter shaft coupler
Operating lever coupler
Pivot pin
Retaining ring, Type C, 1/4, stl
Lockout piston link
Pin
Lockout piston
Spring clip
Pump link
Pump piston
Pin
Pump piston shell
Retaining ring, Type E,1/8”, stl
Quick reset valve assembly
Pump and lockout piston block
Capscrew, hex hd,1/4-20 x
1-3/4, stl
Split lockwasher, med,1/4, stl
O-ring gasket
Ball
Ball seat
Ball retainer pin
Ball retainer pin
Gasket
Retaining ring, Type C, 3/8”, stl
Groove pin
Flat washer, SAE,3/8, stl
Plunger and link assembly
Catalog
Number
Quan.
Req’d.
KP2036A3
K900801050000Z
KP3182A1
KP2448R
KP2447R
KP418H
K970901250000M
KP122R
KP3055A3
KP112R
KP2018A1
KA97R
KP1733R
KP3055A1
KP1732R
K971001125000A
KA423R
KP1300R
6
6
6
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
K730101125175A
K970801025000A
KP2000A3
KP2025A2
KP155H2
KP3051A3
KP3051A1
KP116R
K970901312000M
KP3126A2
K900201037000A
KA50R
2
2
2
2
2
1
1
1
2
1
2
1
Item
No.
31
32
33
34
35
36
Description
Stringer assembly
Split lockwasher, med, 3/8. stl
Hex nut, 3/8-16, stl
Solenoid frame
Capscrew, 3/8-16 x 11/2, stl
Closing coil replacement kit
(includes closing coil, lower coil
gasket 37 (Figure 27) two fuse
assemblies 57 (Figure 26), and
voltage data plate, 19
Figure 25).
2.4 kv
3.3 kv
4.16-4.8 kv
6.0 kv
7.2-8.32 kv
11.0 kv
12.2-13.2 kv
14.4 kv
17.0 kv
20.0 kv
23.0-24.9 kv
34.5 kv
Reclosers with low voltage
closing
48 vdc
125 vdc
250 vdc
37 Solenoid gasket
38 Solenoid frame post
39 Solenoid bridge plate assembly
Catalog
Number
KA62R
K900801037000Z
K880201116037A
KP100R2
K730101137125A
Quan.
Req’d.
4
12
4
1
8
KA834R1
KA834R10
KA834R2
KA834R6
KA834R3
KA834R9
KA834R4
KA834R5
KA834R12
KA834R11
KA834R13
KA834R14
KA834R16*
KA834R7*
KA834R8*
KP389R
KP1669R
KA644R3
1
4
fuses required with low-voltage dc coils, when converting a recloser to
* No
low-voltage operation use the low-voltage contactor and coil kit, P/N KA887R:
specify desired operating voltage (Vdc or Vac).
19
Cooper Power Systems
Quality from
Cooper Industries
©1997 Cooper Power Systems, Inc.
Kyle® is a registered trademark of Cooper industries, Inc
P.O. Box 1640, Waukesha, WI 53187
http://www.cooperpower.com/
KDL
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