Reclosers
S280-30-8
Types RX, and W
Maintenance Instructions
Service Information
14.4 Kv • 400 Amp (Type RX) (Serial No. 679 and after)
14.4 Kv • 560 Amp (Type W) (Serial No. 7334 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 RX 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 ......................................................................3
Closing Solenoid .............................................................3
Closing Solenoid Contactor ...........................................3
Hydraulic Pump and Lockout Piston .............................3
Series Trip Solenoids ......................................................3
Time Delay Unit ...............................................................3
Mechanism Operation .....................................................3
Hydraulic Control System Operation ...........................5
Maintenance.......................................................................5
Frequency of Maintenance ............................................5
Periodic Maintenance Inspection ..................................5
Manual Operation of the Recloser ................................6
Mechanism In Oil .........................................................7
Mechanism Out of Oil ..................................................7
Insulation Level Withstand Tests ....................................8
Oil Condition ....................................................................8
86819KMA
Shop Maintenance Procedures .................................8
Control Lever Overtravel Adjustments ......................8
Bushings ...................................................................9
Interrupters Assembly ...............................................9
Closing Solenoid Contactor .....................................10
Closing Solenoid ......................................................10
Series Trip Solenoid ...................................................11
Solenoid Disassembly .............................................11
Solenoid Replacement ............................................11
Time Delay Unit ..........................................................11
Maintenance .............................................................12
Replacement ............................................................13
Reinstalling Mechanism into Head ..........................13
Testing .........................................................................13
Service Parts List .......................................................13
Bushing Part (Figure 24) ..........................................14
Head and Tank Assembly (Figure 25) ......................16
Trip Coil and Interrupter Mechanisms (Figure 26) ...18
Closing Solenoid and Hydraulic Control Parts
(Figure 27) ...............................................................20
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 RX and W Maintenance Instructions
INTRODUCTION
Service Information S280-30-8 provides the maintenance
instructions for Type RX, and W three-phase, hydraulically controlled, vacuum 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 explodedview drawings of the recloser is included at the back of the
manual.
DESCRIPTION AND OPERATION
General
The Type RX, and W 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
momentariIy connected phase-to-phase through a high-voltage contactor.
Figure 2.
Untanked Type RX recloser.
2
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.
The location of the major components of a RX recloser are
shown in Figure 2. They are similar for the W 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 vacuum interrupter contacts
are open; when the flag is up, the contacts are closed.
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S280-30-8
Interrupters
Circuit opening and fault interruption is achieved by bridgetype 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 self-cleaned 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. 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 snapaction 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 quick reset 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).
Series Trip Solenoids
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, by approximately 200 percent, 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.
Time Delay Unit
When the mechanism is sequenced to a delayed operation
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 3.
Series Trip coil.
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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 ready
for another opening operation.
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Types RX and W Maintenance Instructions
Figure 4a.
Time delay unit (old).
Figure 5.
Head mechanism lever arrangement
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Figure 4b.
Time delay unit (new).
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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 number of
operations. The hydraulic pump (Figure 6) is linked to the
closing-solenoid plunger and is pushed downward with each
operation of 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.
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.
Figure 7.
Hydraulic pump cross section.
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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 RX
Type W
2.4-14.4
15.5
2.4-14.4
15.5
110
110
50
45
50
45
400
400
DUTY CYCLE
% of
Maximum
Interrupting
Circuit
Rating
X/R Value
15-20
3
45-55
7
90-100
14
Number of Unit Operations
Type RX
28
24
10
Total 62
Type W
28
20
10
Total 58
MAINTENANCE
Frequency of Maintenance
Figure 6.
Hydraulic pump.
86827KMA
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
5
Types RX and W Maintenance Instructions
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 RX and W 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
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 9 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 and the vacuum integrity of the interrupters. (See page 8 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.
14. Remove the moving contact assembly from the bottom of
the contact lift rod and inspect 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, if one half or more of the contact load surface is
worn away the interrupter assembly must be replaced.
C. Figure 8 shows a new contact and a contact that has experienced severe interrupting duty. The used contacts have
reached the conditon where the interrupter assembly
should be replaced.
15. Reinstall bushings, use new gaskets, (See page 9 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 8.
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 while raising
the tank.
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: If 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 8 ) 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.
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 and disassemble bushings, discard old gaskets.
Inspect bushing porcelain, rod and hardware for damage.
Replace as required.
9. Replace all external seals and gaskets.
10. Inspect mechanism for cracks, carbon traking, flashovers
or other damage. Repair or replace as required.
11. Check the condition of the closing solenoid contractor contact tips. If the contact tips are eroded replace entire contactor assembly. (See page 10 for replacement procedure.)
12. Inspect closing coil cracks or other damage.
13. Inspect series trip solenoid.
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85693KMA
Figure 8.
Left: new moving contact; right: contact after one full duty cycle.
S280-30-8
MECHANISM OUT OF OIL
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.
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.
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 Oil).
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.
CAUTION
The mechanism may be damaged if it is "quick-tripped" with
the yellow operating handle while out of oil.
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.
Figure 10.
Resetting trip reset.
84616KMA
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.
Figure 9.
Manually closing recloser.
82008KMA
7
Types RX and W Maintenance Instructions
one or more of the interrupters is most likely the cause. Retest
each interrupter individually to determine the failed phase or
phases, and replace the interrupter(s). Retest to confirm the
repair.
B. If the recloser faiIs 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
86793KMA
Figure 11.
Trip lever releases mechanism when opening recloser out of
oil.
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.
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. Filtering 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.”
Insolation Level Withstand Tests
SHOP MAINTENANCE PROCEDURES
High-potential withstand tests provide information on the dielectric condition of the recloser and the vacuum integrity of the
interrupters. Testing is performed at 75% of the rated low-frequency withstand voltage (37.5 kv).
TEST 1: Proceed as follows:
1. Manually close main contacts of recloser (see page 7 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 7 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 7 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 seconds.
8. The recloser should withstand the test voltage for 60 seconds.
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 leverclockwise 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.
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
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
Figure 12.
Overtravel adjustment of control lever.
8
S280-30-8
Bushings
Bushing maintenance generally 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. Refer to Figure 13 and proceed as follows:
1. Disconnect the bushing lead from the bottom end of the
bushing rod.
2. Remove the three hex head capscrews and clamps that
secure the bushing to the head and lift out the complete bushing assembly.
3. Remove and discard the lower bushing gasket.
Figure 14.
Bushing parts.
6. Install the bushing assembly (new or reworked) into the head
using a new lower bushing gasket. Position the bushing with the
stud end of the terminal pointing outward.
7. Position the clamping ring with the split centered between two
clamping bolts.
8. Reassemble the bushing to the head casting. Tighten the bolts
evenly, a little at a time, to a torque of 10-15 ft-lbs.
Figure 13.
Replacing bushing with recloser tanked.
4. Depending upon the extent of damage, the complete bush
ing assembly can be replaced or new ceramic only can be
installed. If new ceramic only is to be installed, refer to
Figure 14 and proceed as follows:
A. Unscrew the bushing terminal and withdraw the rod from
the bottom of the bushing ceramic; discard the terminal
gasket.
B. Insert the rod assembly all the way into the new ceramic,
making sure the roll pin is seated in the locking groove in
the top of the bushing.
C. Assemble the terminal to the bushing rod using a new
terminal gasket; tighten to 35 ft-lbs. of torque.
NOTE: Apply a very small amount of petroleum jelly to the
knurled surface of the inside face of the terminal before assembly
to the bushing rod.
NOTE: Clamping forces must be applied gradually and equally in rotation to each bolt. This results in an evenly distributed gasket sealing
pressure.
9. 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.
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.
5. Twist off the split aluminum clamping ring from the old
bushing and install on the new bushing if it is in good condi
tion; replace the ring if damaged.
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: The clamping ring cushions and distributes the pressure
between the ceramic and the clamps. DO NOT OMIT.
NOTE: It is recommended that vibration-proof nuts not be reused.
9
Types RX and W Maintenance Instructions
2. Remove the C-type retaining rings and withdraw 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 clear
ance to grounded parts.
Closing Solenoid
85695KMA
Figure 15.
Assembled interrupter and stationary contacts, type RX.
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.
Figure 16.
Replacing closing coil contactor
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86824KMA
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.
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.
Figure 17
Replacing closing solenoid.
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S280-30-8
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 contactor 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.
SERIES TRIP SOLENOID
The continuous current rating and the trip current rating of the
recloser can be changed 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.
3. Remove 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 solenoid frame.
7. Replace any damaged parts at this time.
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 upper
washer requires a larger center slot. The same lower 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.
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.
Solenoid Disassembly
1. Remove cotter pin; slide out groove pin that connects the
insulated operating links to the solenoid plunger (Figure
18).
2. Remove bolt that fastens outer coil terminal and bushing
lead.
Figure 19.
Assembling solenoid series trip coil.
82023KMA
TIME DELAY UNIT
Figure 18.
Replacing series trip coil.
85622KMA
The recloser is equipped with hydraulically-operated time delay units
on each phase. These provide the different time-current 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 (KA1 194R1 provides B and C curves and KA1194R2 provides
D and E curves).
11
Types RX and W Maintenance Instructions
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.
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: 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.
3. Disconnect any accessories, such as a ground trip solenoid, at
their terminals.
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.
Replacement
Replacement time-delay kits include a factory calibrated timedelay, 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 time-delay unit
is installed.
Figure 21.
Disconnect couplers.
86830KMA
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.
Figure 20.
Series trip solenoid removal.
86780KMA
Removing Mechanism from Head
To gain access to components located in or on the main frame,
the following procedure may be used to remove the mechanism
from the head.
12
Figure 22.
Remove E-ring to disconnect auxiliary operating lever.
83375KMA
S280-30-8
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.
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)
the mechanism and secure with the washer and E-ring (Figure
22).
6. Reconnect the bushing leads to the end of the bushings.
TESTING
Procedures for testing the Type RX and W reclosers are included in
the Installation Manual S280-30-1.
SERVICE PARTS LIST
Figure 23.
Lifting mechansim in and out of the head.
86780KMA
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.
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 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
Systems' 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.
All par ts 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.
13
Types RX and W Maintenance Instructions
Figure 24.
Bushing Parts.
14
S280-30-8
Bushing Parts (Figure 24)
Item
No.
1
2
3
4
5
6
7
8
9
10
11
Description
Bushing Assembly—Type RX
(consists of items 9 through 12)
11-5/8-inch standard creepage
11-5/8-inch standard creepage
with BCT accy.
17-inch extra-creepage
17-inch extra-creepage with
BCT accy.
Bushing Assembly—Type W
(consists of items 9 through 12)
11-5/8-inch standard creepage
11-5/8-inch standard creepage
with BCT accy.
17-inch extra-creepage
17-inch extra-creepage 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.
Bushing clamp
Clamping ring
Lower bushing gasket
Terminal Assembly—Type RX
—Type W
Upper bushing gasket
Bushing ceramic—Type RX
Standard creepage
Standard creepage with BCT
accy.
17-inch extra-creepage
17-inch extra-creepage with
BCT accy.
Bushing ceramic—Type W
Standard creepage
Standard creepage with BCT
accy.
17-inch extra-creepage
17-inch extra-creepage with
BCT accy.
Catalog
Number
Oty.
per
Assy.
Qty.
Item
No.
12
KA717R1
6
KA717R2
KA717R3
6
6
KA717R4
6
KA717R25
6
KA717R26
KA717R27
6
6
KA717R28
K880725320050H
KP2028A903
6
12
12
13
K900830050000A
6
14
15
16
K730101137225Q
KP1109R
KP1111R
KP2090A66
KA143L900
KA17W901
KP2090A57
18
18
6
6
1
1
1
KP1110R
1
KP171W
KP1578R
1
1
KP186W
1
KP1110R
1
KP171 W
KP1578R
1
1
KP186W
1
Description
Bushing rod assembly—Type
RX
Standard and 17-inch
creepage
Standard and 17-inch
creepage with BCT accy.
Bushing rod assembly—Type
W
Standard and 17-inch
creepage
Standard and 17-inch
creepage with BCT accy.
Catalog
Number
per
Assy.
KA716R7
1
KA716R11
1
KA716R20
1
KA716R21
1
The following parts are applicable to the bushing current transformer
accessory. Quantities shown for one current transformer.
17
18
19
20
21
22
23
Capscrew, hex hd, 3/8-16 x
1-7/8, stl.
Transformer clamping flange
Flange gasket
Replacement current transformer
600:5 multi-ratio
1200:5 multi-ratio
CT washer, used with plastic
housing CT’s
Capscrew, hex hd, 3/8-16 x 1
stl.
Transformer clamping sleeve
O-ring gasket, used with
transformer clamping sleeve
that has machined groove.
Old style clamping sleeve,
without groove, use
KP2090A66.
Hex nut, 3/8-16, stl
Stud
Bushing spacer
K730101137187Q
KP170W1
KP2090A73
3
1
2
KA159W1S
KA132W
1
1
KP312W
1
K730101137100Q
KP169W1
3
1
KP2000A64
K880201116037Q
K P3149A40
KP275W
1
3
1
1
15
Types RXand W Maintenance Instructions
Figure 25.
Head and tank assemblies.
16
S280-30-8
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 RX
Type W
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
Catalog
Number
Ouan.
Req’d.
KP609R
KP611R
K730101125075Q
K900801025000Z
KA363R
KP2000A9
KP2312R
2
2
8
8
1
1
1
K751515102018A
K730101125062Q
2
2
KP246R1
KP2000A12
1
1
K730101162150Q
K900801062000Z
KP456H2
KA392R
2
2
2
1
KA840R
KP2103A8
1
1
KP1RX
KP228W
KP567R
KP2119A9
KP1371R
1
1
1
1
1
K801515004018A
K283R
8
1
K781515112050A
KP1067R
KP390R
5
1
1
K751515102018A
4
KA477R
KP3009A39
KA313R
KP3011 A5
KP3011 A7
1
1
1
1
1
Item
No.
33
34
35
36
37
38
39
40
41
42
43
44
45
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.
sti, WA516
Roll pin 1/8 x 3/4
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 x1/2, 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
Quan.
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
17
Types RX and W Maintenance Instructions
Figure 26.
Trip coil and interrupter mechanisms.
18
S280-30-8
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 RX
Type W
Moving contact rod assembly
Type RX, phases A & B
Type RX, phase C
Type W, phases A & B
Below Serial No. 8894
Serial No. 8900 and above
Type WV, phase C
Below Serial No. 8894
Serial No. 8900 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 (red color band)
Clamp
Wire lead
Lead
RX
W
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, 1/46 X 1/2. stl
Pin
Bracket
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
K970901250000A
KP141R1
KP1306R
KA430R1
1
1
3
13
2
1
1
K8830101125050A
3
K721525125050A
K881025120025A
K900830025000A
7
6
7
2
KA259R904
KA259R901
KA259R902
KA259R903
KP2006A16
KA28W1
KP3250A1
KP3250A1
K700133337087A
K900525039087H
K900830037000A
K880725324037H
K970501062050A
KP3114A1
KP2576
KP13RV2
KP13RV1
2
2
12
18
3
3
9
3
3
3
2
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
2
1
62
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 RX
Phases A & B
Phase C
Type W
Phases A & B
Phase C
Coil washer (used instead of
KP318P on top of 400 and 560
amp coils only)
Interrupter assembly
Type RX
Phases A & B
Phase C
Type W
Phases A & B below serial
no. 8894
Phase C below serial no.
8894
Phases A & B serial no.
8900 and above
Phase C serial no. 8900 and
above
Roll pin, 1/8 X 5/8. stl
Moving contact assembly
Type RX
Type W
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 RX (4 per phase)
Type W (6 per phase)
Insulator
Insulator sleeve
Toggle assembly
Type RX
Serial no. 2901 and above
Below serial no. 2878
Type W
Serial no. 8901 and above
Serial nos. 7334-8893
Bracket
Catalog
Number
Quan.
Req’d.
K730101125087A
6
K751501102031A
KP1351R
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
KP2104A9
KP2104A15
12
18
2
3
KA166W
KA450R3
1
1
KA166W
KA450R3
KP257L
1
1
2
19
Types RX and W Maintenance Instructions
Figure 27.
Closing solenoid and hydraulic control parts.
20
S280-30-8
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
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
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
2
2
2
2
2
1
1
1
2
1
Item
No.
29
30
31
32
33
34
35
36
37
38
39
Description
Flat washer, SAE, 3/8, stl
Plunger and link assembly
Stringer assembly
Split lockwasher, med, 3/8. stl
Hex nut, 3/8-16, stl
Solenoid frame
Capscrew, 3/8-16 x 1-1/2. 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
Rec!osers with low voltage
closing
48 vdc
125 vdc
250 vdc
Solenoid gasket
Solenoid frame post
Solenoid bridge plate assembly
Catalog
Number
K900201037000A
KA50R
KA62R
K900801037000Z
K880201116037A
KP100R2
K730101137125A
Quan.
Req’d.
2
1
4
12
4
1
8
KA834R1
KA834R10
KA834R2
KA834R6
KA834R3
KA834R9
KA834R4
KA834R5
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).
21
©1991
Cooper Power Systems, Inc.
Kyle® is a registered trademark of Cooper Industries, Inc.
1045 Hickory Street • Pewaukee, WI 53072
Printed on Recycled Paper
KTM
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