Eaton W-VAC Series Instructions For Installation, Operation And Maintenance

Also see for 120W-VAC16: Instructions for installation, operation and maintenance

Contents

Instruction BookPage 43IB131009ENthe circuit breaker from closing fully. In such a case, itis important to determine that the circuit breaker willclose fully. The CloSureTM Test provides this assurance.General Information: The CloSureTM Test can be per-formed on the VCP-W, VCP-WR, VCPW-ND, DHP-VR, W-VACR, W-VAC, and W-VACW lines of vacuum circuitbreakers Refer to Table 6.3 for a list of circuit breakers. Ifthe CloSureTM travel obtained is as specified, the mecha-nism performance is satisfactory. If the CloSureTM traveldoes not conform as shown in Figure 6-15, contactEaton for further information. (See Step 13).DO NOT ATTEMPT TO INSTALL OR PERFORMMAINTENANCE OR TESTS ON THE EQUIPMENTWHILE IT IS ENERGIZED. NEVER PUT YOURHANDS NEAR THE MECHANISM WHEN THE CIR-CUIT BREAKER IS IN THE CHARGED OR CLOSEDPOSITION. DEATH OR SEVERE PERSONAL INJURYCAN RESULT FROM CONTACT WITH ENERGIZEDEQUIPMENT. ALWAYS VERIFY THAT NO VOLTAGEIS PRESENT BEFORE PROCEEDING WITH THETASK, AND ALWAYS FOLLOW GENERALLYACCEPTED SAFETY PROCEDURES.Safety Precautions: Read and understand theseinstructions before attempting any maintenance, repairor testing on the breaker. The user is cautioned toobserve all recommendations, warnings and cautionsrelating to the safety of personnel and equipment.The recommendations and information contained hereinare based on Eaton experience and judgment, butshould not be considered to be all-inclusive or cov-ering every application or circumstance which mayarise. If further information is required, you shouldconsult Eaton.Testing Procedures: Assuming that the breaker issafely pulled out to the Test/Disconnect position in theenclosure or placed on the workbench, follow this proce-dure to perform the CloSureTM Test. For further instruc-tions on disconnecting the circuit breaker consultSection 4 of this manual. If the enclosure is equippedwith the MOC operating in the test position also, makecertain that the MOC is connected to operate.Step 1 - On the front cover identify the status indicators.MAKE SURE THE CLOSING SPRING STATUS INDI-CATES “Discharged” AND THE MAIN CONTACTINDICATOR SHOWS “Open” (Figure 6-9).Step 2 - Remove the circuit breaker front cover. Be sureto save the original fasteners for reassembly.Step 3 - Cut a piece of one inch wide drafting/maskingtape approximately 8 to 10 inches long.Step 4 - Place the tape around the cam starting from thebottom up. Make certain that the tape adheres well tothe cam surface. (See Figures 6-9, 6-10 and 6-11).Step 5 - Mount the transparent CloSureTM Test Tool withtwo bolts and washers. Refer to Figures 6-22, 6-23 andTable 6.3 for appropriate mounting holes. Hand tightenthe bolts (Figures 6-12, 6-13, 6-22 and 6-23).Step 6 - A Sanford® Sharpie ® black fine point perma-nent marker, item no. 30001, is recommended for thisnext step. Place the marker tip in the proper hole (“C”).Refer to Figure 6-22 and make a heavy mark on thetape as shown in Figure 6-15.Step 7 - Charge the closing springs with the mainte-nance tool. Continue charging the closing springsuntil a “click” is heard and the status indicator shows“Charged” (Figure 6-14).Step 8 - While holding the marker tip on the tape, closethe breaker (Figure 6-15).Step 9 - Move the marker back and forth horizontallyapproximately 15o in both directions to create a line onthe tape that identifies the closed rest position (Figures6-16, 6-22 and 6-18).Step 10 - Remove the marker from hole “C”.Step 11 - Push the “push to open” clapper to open thecircuit breaker.Step 12 - Inspect the circuit breaker to assure it is in theopen position and the closing springs are discharged.Remove the transparent CloSureTM Tool. Remove thetape from the cam and stick the tape on the front rightside sheet of the circuit breaker. Record the date of thetest and the operations counter reading on the tape(Figures 6-19 and 6-20 and 6-21).Step 13 - Evaluate the CloSureTM”performance by com-paring the test tape with the illustrations in Figure 6-21.If the marking is similar to 6-21A measure the over trav-el “x”: If “x” is greater than or equal to 0.6 inches, thecircuit breaker performance is satisfactory. If “x” is lessthan 0.6 inches or if the marking is similar to 6-21B or6-21C, immediately contact your Eaton Rep.Step 14 - Remove the CloSureTM Tool. Reassemble thefront cover onto the circuit breaker. Return the circuitbreaker to it’s original configuration and setup.WARNING