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COOPER POWER Reclosers SERIES Effective May 2017 MN280055EN Supersedes April 2014 (S280-15-7) Types V4L and V4E single-phase maintenance instructions...
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CONTENTS OF THIS DOCUMENT SHALL NOT BECOME PART OF OR MODIFY ANY CONTRACT BETWEEN THE PARTIES. In no event will Eaton be responsible to the purchaser or user in contract, in tort (including negligence), strict liability or other-wise for any special, indirect, incidental or consequential damage or loss whatsoever, including but not limited to...
FOR LIFE FOR LIFE Eaton’s Cooper Power series products meet or exceed all applicable industry standards relating to product safety. We actively promote safe practices in the use and maintenance of our products through our service literature, instructional training programs, and the continuous efforts of all Eaton employees involved in product design, manufacture, marketing, and service.
Standards Eaton’s Cooper Power series reclosers are designed and Additional information tested in accordance with the following standards: ANSI/IEEE C37 .60-1981 and IEEE Std C37 .85™-1989 These instructions cannot cover all details or vari ations standards and ANSI Guide C37 .61-1973.
Types V4L and V4E single-phase maintenance instructions Maintenance Remove mechanism from tank. Loosen four bolts that secure tank to head casting, and loosen gasket seal between tank and head casting. Gasket seal can be broken by carefully prying head and tank apart. Frequency of maintenance Hoist mechanism out of tank;...
Types V4L and V4E single-phase maintenance instructions 9.5 gallons (35.9 liters) of oil will fill tank to correct Move operating lever to OPEN position and listen level as indicated by line on fiber liner (4 inches for opening of the main contacts. Then quickly from rim of tank).
Types V4L and V4E single-phase maintenance instructions Specifications and ratings Table 5 . Full-life duty V4L and V4E Percent of maximum Maximum X/R Number of unit circuit interrupting rating ratio operations The recloser will interrupt fault currents only when applied within its specific ratings.
Types V4L and V4E single-phase maintenance instructions Testing CAUTION Radiation . At voltages up to the specified test voltages, Following are several tests that can be performed to the radiation emitted by the vacuum interrupter is determine if a recloser is operating properly. For a more negligible .
Types V4L and V4E single-phase maintenance instructions Contact operation test Replacing bushing assembly Untank recloser and disconnect appropriate bushing The following test is meant to verify that the recloser lead, see Figure 2. contacts/mechanism are operating properly. With recloser tanked: Remove three hex-head cap screws and bushing clamps that secure bushing to head casting.
Types V4L and V4E single-phase maintenance instructions Position aluminum clamping ring, so split will be CAUTION centered between two clamping bolts. Bushing damage . The split aluminum ring must be Replace bushing clamps and tighten cap screws replaced if damaged . The clamping ring cushions and evenly, a little at a time, to 6-10 lbs-ft (8-13 Nm).
Types V4L and V4E single-phase maintenance instructions Vacuum Interrupter The vacuum interrupter must be replaced when: It loses its vacuum, as evidenced by a failure during the ● ● low-frequency dielectric withstand test across the open contact; or. The interrupter contacts have eroded beyond their useful ●...
Types V4L and V4E single-phase maintenance instructions 12. Push contact stop bracket up as high as it will go. 11. Place plate and exchange assembly, with interrupter, Hold upper interrupter clamp hardware, to prevent into position. Carefully align moving contact rod with movement, while locknuts are tightened to secure upper clamp as assembly is being installed.
Types V4L and V4E single-phase maintenance instructions 12. Install hardware to secure plate and exchange assembly to support spacers. 13. Manually close recloser. otee: Moving contact rod must bottom in upper interrupter clamp assembly. 14. Tighten interrupter clamp hardware to 75 lbs-in (8.5 Nm). 15.
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Types V4L and V4E single-phase maintenance instructions Using a wire hook, pull spring through bottom of trip piston cylinder and hold with a thin metal plate. CAUTION Thin plate Equipment damage . Do not over stretch the trip piston return spring when removing the piston assembly . Over stretching the spring can affect the sequence of operation and reset times .
Types V4L and V4E single-phase maintenance instructions To replace pump-piston assembly: Remove self-locking nut and four hex cap screws shown in Figure 12. Note locations of washers Note position of pump-piston shell with respect to and spacers. pump-link assembly. Lift operating mechanism assembly enough to expose Unscrew shell far enough to expose piston pin.
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Types V4L and V4E single-phase maintenance instructions Remove sleet hood cover and counter. Drive out roll pin that secures counter lever assembly to counter shaft, see Figure 17 . Remove shaft. Note Drive out rollpin that secures lockout lever, see location of flat washer that separates counter lever Figure 15.
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Types V4L and V4E single-phase maintenance instructions Assembly Adjust self-locking nuts (see Figure 20) as required to achieve correct tripping operation. Reassembly of the head mechanism assembly can, in general, be accomplished by reversing the Be sure to maintain free play between trip transfer otee: disassembly procedure.
Types V4L and V4E single-phase maintenance instructions Adjustments To change operating sequence the trip piston is repositioned to the desired number of fast trip operations, refer to Figure 22. Timing mechanism and operating sequence otee: There are two different trip pistons used in these Operating sequence and timing are governed by the reclosers;...
Types V4L and V4E single-phase maintenance instructions Mechanical operation After parts have been replaced, or after the operating sequence has been changed, it is necessary to verify and fine-tune the operation of the recloser. This fine-tuning procedure requires a suitable tester to apply the required test currents.
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Types V4L and V4E single-phase maintenance instructions If recloser is performing too many operations, turn self-locking nuts off the trip linkage (counterclockwise) a little, see Figure 25. Repeat test. If recloser is performing too few operations, turn self-locking nuts onto the trip linkage (clockwise) a little (onto the pump piston) see Figure 25.
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Types V4L and V4E single-phase maintenance instructions Contact rod assembly adjustments With the contacts open, the contact rod should be at or within 1/32 inch of the overtravel stop. With the contacts closed, the length of the compressed compression spring Moving contact Jam nut (at top of should not exceed 19/32 inch.
Maintenance and Inspection Procedures for Eaton’s Cooper available. Power series Reclosers and KSPV2A, Mechanical Operation, Service and Testing for Eaton’s Cooper Power series To assure correct receipt of any part order, always include Single-Phase Reclosers; are also available as supplemental recloser type and serial number.
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Types V4L and V4E single-phase maintenance instructions V4E ONLY Figure 27 . Head and tank MAINTENANCE INSTRUCTIONS MN280055EN May 2017...
Types V4L and V4E single-phase maintenance instructions Interrupter assembly (Figure 29) Qty. Qty. Item Item Description Catalog number assy. Description Catalog number assy. Contact rod and spring assy. KA109V4L Spacer assy., long KA116V4L (includes items 1 thru 7) Spacer assy., long KA122V4L Rod extension KP102L...