Eaton VCP-W Series Instruction Book

Also see for VCP-W Series: Instructions for installation/operation/maintenance/servicing Instruction leaflet

Contents

16 Instruction Book IB182312EN June 2016 www.eaton.com50/75/150 VCP-WSelectable Ground and Test Deviceg. Repeat steps ‘f’ for the remaining selector blades of the SG&Tterminals.h. Replace the removable barriers into their respective retainersbefore proceeding to the next step (Figure 5.3).i. Close the terminal set door and secure it with the specialKirk™ lock bolt (if so equipped.) The Kirk™ Lock bolt is pushedthrough the door hasp and into the Kirk™ lock itself. Turn theKirk™ key to retain the special bolt and release the Kirk™ keyfrom the lock cylinder. (Figure 5.1).j. If the other set of terminals are to be accessed and grounded,start at ‘a’ above to ground the other set of terminals, if theSG&T is the six terminal type.k. When all tests are complete, return the selector blades to theneutral position and re-install the removable barriers.l. The SG&T may now be removed from the switchgear circuitbreaker compartment using the removal procedure in Section5.5. DANGERFAILURE TO RETURN THE SELECTABLE BLADES TO THE NEUTRALPOSITION INSIDE THE SG&T AFTER TESTING IS COMPLETE WILL CAUSEDEATH, SERIOUS INJURY, AND/OR PROPERTY DAMAGE. A THREEPHASE BOLTED FAULT WILL OCCUR IF THE CIRCUIT IS INADVERTENTLYENERGIZED.5.5 INSERTION PROCEDURE CAUTIONTHE MAIN SWITCHGEAR BUS AND SWITCHGEAR LOAD CONNECTIONSARE CONNECTED WHEN THIS GROUND AND TEST DEVICE IS RACKED TOTHE ‘CONNECTED’ POSITION. ALL PRIMARY CIRCUITS MUST BE FULLYDE-ENERGIZED, LOCKED AND TAGGED OUT TO PREVENT INADVERTENTENERGIZATION. CONFIRM THAT LINE AND LOAD PRIMARY CIRCUITSARE NOT BACKFED THROUGH SECONDARY CONTROL CIRCUITS SUCH ASPOTENTIAL TRANSFORMERS OR CONTROL POWER TRANSFORMERS. THISGROUND AND TEST DEVICE MUST BE OPERATED ONLY WITH A WELLMAINTAINED AND CERTIFIED ‘HOT STICK’. DANGERFAILURE TO REMOVE ALL SOURCES OF POWER FROM THE CIRCUITBREAKER COMPARTMENT BEING GROUNDED WILL RESULT IN PERSONALINJURY AND PROPERTY DAMAGE. APPROPRIATE PERSONAL PROTECTIVEEQUIPMENT (PPE) MUST BE IN PLACE PRIOR TO OPERATING THIS SG&T. WARNINGEXAMINE THE INSIDE OF THE CELL BEFORE INSERTING THE SG&T FOREXCESSIVE DIRT OR ANYTHING THAT MIGHT INTERFERE WITH THE SG&TTRAVEL.KEEP HANDS OFF THE TOP EDGE OF THE FRONT BARRIER WHEN PUSHINGA SG&T INTO A CELL. FAILURE TO DO SO COULD RESULT IN BODILYINJURY, IF FINGERS BECOME WEDGED BETWEEN THE SG&T AND THECELL. USE BOTH FULLY OPENED HANDS FLAT ON THE FRONT OF THE SG&TTO ADVANCE INTO THE STRUCTURE.If the VCP-W SG&T is being inserted into an upper compartmentor will be positioned in a lower compartment without the use of adrawout ramp or dockable dolly, the extension rails must first beput in position. Carefully engage the left and right extension rails tothe fixed structure rails and ensure they are properly seated in place(Figure 5.9). Once the extension rails are properly in place, the SG&Tcan be carefully loaded on the extension rails using an overhead lifterand lifting yoke. Remove the lifting yoke when the SG&T is securelyseated on the extension rails.Figure 5.9. Inserting Guide RailsFigure 5.10. Racking the SG&T DevicePush the SG&T into the compartment until the Disconnect/Testposition is reached as confirmed by a metallic sound of the rackinglatch engaging the racking nut (Figures 5.10). Once the SG&T is inthe Disconnect/Test position, the extension rails can be removed. WARNINGDO NOT USE ANY TOOL OTHER THAN THE RACKING-IN CRANK PROVIDEDTO LEVER THE SG&T FROM TEST OR CONNECTED POSITIONS. CORRECTOPERATION OF SOME OF THE INTERLOCKS IS DEPENDENT ON USE OF THEPROVIDED RACKING CRANK. PERSONAL INJURY OR EQUIPMENT DAMAGECOULD RESULT FROM THE USE A TOOL OTHER THAN THE PROPERRACKING-IN CRANK.To move the VCP-W SG&T to the CONNECTED position, engagethe racking-in crank with the structure mounted racking shaft(Figure 5.10). Turn the racking-in crank in a clockwise direction andthe SG&T will move slowly toward the rear of the structure. Whenthe SG&T reaches the CONNECTED position (Figure 5.11), it willbecome impossible to continue turning the racking-in crank. TheCONNECTED position will also be indicated by a red flag indicatorjust below the racking device.5.5 REMOVAL PROCEDURETo remove the SG&T device from the CONNECTED position, engagethe racking handle onto the circuit breaker compartment mountedracking shaft. Turn the racking handle counterclockwise until theSG&T reaches the ‘disconnect/test’ position. When the ‘disconnect/test’ position is reached, it will not be possible to turn the rackinghandle any further. The ‘disconnect/test’ position is indicated by agreen indicator below the racking device.