Eaton VacClad-W Instructions For Installation, Operation, Maintenance

Also see for VacClad-W: Instruction booklet

Contents

22Instruction Booklet IB02201004EEffective October 2017Revision #4Instructions for installation, operation, andmaintenance of 38 kV type VacClad-W,150 BIL switchgear indoor housingsEATON www.eaton.com6 Release the lifter brake by stepping down on the brakerelease (see Figure 27)7 Pull back on the pan safety latch release lever (see Figure 31)to release the safety latches and the pan from the compart-ment Pull the lifter out and away from the switchgear unitFigure 31. Releasing the Lifter Pan and Lifter from the AuxiliaryCompartment.E Removing the transformer drawer from the auxiliary compartment:1 Follow “A” in this section to secure the lifter pan to the lifter2 Maneuver the lifter inline with the front of the switchgear sothat each side of the lifter pan will clear the switchgear sidesheets when the pan is moved into place3 Push the lifter with pan up against the front of the switchgearsection (See Figure 28) The pan guide-stops will guide thepan into the compartment and align the pan rails into thecorrect position with the compartment guide rails The guide-stops butt up against the switchgear side sheets and preventthe lifter from moving too far into the compartment As thepan is moved into place, the pan safety latches bias off theswitchgear side sheets and latch to the side sheet flangeswhen the pan is fully in place These safety latches, alongwith the lifter brake, prevent the lifter and pan from backingout of the compartment when the drawer is moved in andout of the compartment4 Lower the lifter pan by rotating the winch counterclockwiseuntil the pan rests on the compartment floor sheet For anupper compartment, only the front of the pan will rest on thefloor of the compartment In any case, make sure the lifterblock remains in the pan bracket (see Figure 24) and the panis level with the compartment floor5 Lock the lifter in place by stepping down on the lifter brakepedal (Figure 25)6 With the transformer drawer in the Disconnect position andthe drawer in the fully retracted position (see Figure 9), standto one side of the lifter (opposite the front switchgear doorhinges), reach into the compartment, and pull firmly on thered drawer release lever (see Figure 7) to release the trans-former drawer from the cell7 Pull the drawer, using the red release lever, onto the lifterpan, making sure that the wheels on the drawer roll on thepan between the pan rails Pull the drawer all the way backon the pan and up against the rubber stopsNOTICEDO NOT HANDLE THE FUSE TUBES AND MATING PARTS WHILE MOVINGTHE TRANSFORMER DRAWER. THIS MAY CAUSE DAMAGE TO THESEPARTS.8 Make sure the drawer safety latch has secured the drawer tothe lifter pan (see Figure 26) The safety latch hitches to theunderside of the drawer flange Push on the drawer to con-firm it is fixed to the pan9 With the transformer drawer fixed to the lifter pan, return tothe rear of the lifter and crank the lifter winch clockwise afew turns until the pan comes off the compartment floor asmall distance CAUTIONPERFORMING #11 BELOW BEFORE PERFORMING #9 ABOVE WILL CAUSETHE LIFTER PAN TO SUDDENLY DEFLECT WITH AN UNDESIRABLE IMPACTLOADING AS THE LIFTER WITH PAN IS MOVED AWAY FROM THE SUPPORTOF THE COMPARTMENT FLOOR. THE DRAWER WEIGHT ON THE PANCAUSES A SMALL CANTILEVER DEFLECTION ON THE PAN SUPPORTSWHEN FREE FROM SUPPORT OF THE COMPARTMENT FLOOR.10 Release the lifter brake by stepping down on the brakerelease (see Figure 27)11 Pull back on the pan safety latch release lever (see Figure 31)to release the safety latches and the pan from the compart-ment Pull the lifter out and away from the switchgear unit9.2.3 Manual ground and test deviceThe manual ground and test device, shown in Figure 32, consists ofa drawout element that can be inserted into a circuit breaker com-partment in the same manner as the drawout vacuum circuit breakerelement The device includes six terminals and ground bus connec-tions Each terminal is isolated from each other and the bus connec-tion by insulating the respective front panel The ground connectionis located in the lower front section of the device The groundingof either upper or lower terminals is accomplished by connectinggrounding links (provided with the device) from either the upper orthe lower terminals to the device ground connection Cable testingor “phasing out” testing may be accomplished by connecting suit-able test equipment as required, to the terminalsBecause the grounding and test device has no making or interruptingability, the circuits must be de-energized before the ground is con-nected or removedRefer to IL3A74795 for complete instructions for this device Readthem fully before using the device