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

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

Contents

IB131009ENInstruction BookPage 153-2 HANDINGDO NOT USE ANY LIFTING DEVICE AS A PLAT-FORM FOR PERFORMING MAINTENANCE, REPAIROR ADJUSTMENT OF THE BREAKER OR FOROPENING, CLOSING THE CONTACTS OR CHARG-ING THE SPRINGS. THE BREAKER MAY SLIP ORFALL CAUSING SEVERE PERSONAL INJURY.ALWAYS PERFORM MAINTENANCE, REPAIR ANDADJUSTMENTS ON A WORKBENCH CAPABLE OFSUPPORTING THE BREAKER.The circuit breaker shipping containers are designed tobe handled either by use of a rope sling and overheadlifting device or by a fork truck. If containers must beskidded for any distance, it is preferable to use rollerconveyors or individual pipe rollers.Once a breaker has been inspected for shipping dam-age, it is best to return it to its original shipping containeruntil it is ready to be installed in the Metal-CladSwitchgear.When a breaker is ready for installation, a lifting yoke inconjunction with an overhead lifter or portable floor liftercan be used to move a breaker. In some instances, thisis preferable to rolling the breaker on the floor using selfcontained wheels when provided on the cradle or car-riage. If the breaker is to be lifted, position the liftingyoke over the breaker and insert lifters into the breakerside openings with the lifting hole toward the inter-rupters. Once the lifting yoke is securely seated in thelifting holes, the breaker can be carefully lifted andmoved.3-3 STORAGEIf the circuit breaker is to be placed in storage, maxi-mum protection can be obtained by keeping it in theoriginal container.Before placing it in storage, checks should be made tomake sure that the breaker is free from shipping dam-age and is in satisfactory operating condition.The breaker is shipped with its contacts open and clos-ing springs discharged. The indicator on the front panelshould confirm this. Insert the maintenance tool in themanual charge socket opening (Figures 3-2 and 4-1a).Charge the closing springs by pumping the handle upand down about 38 times until a crisp metallic "click" isheard. This indicates that the closing springs arecharged and is shown by the closing spring "charged"(yellow) indicator. Remove the maintenance tool. Pushthe "manual close"button. The breaker will close asshown by the breaker contacts "closed" indicator. Pushthe "manual trip" button. The breaker will trip as shownby the breaker contacts "open" indicator. After complet-ing this initial check, leave the closing springs "dis-charged" and breaker contacts "open"(Figures 3-2, 4-1c and d).Outdoor storage is NOT recommended. If unavoidable,the outdoor location must be well drained and a tempo-rary shelter from sun, rain, snow, corrosive fumes, dust,dirt falling objects and excessive moisture must be pro-vided. Containers should be arranged to permit free cir-culation of air on all sides and temporary heaters shouldbe used to minimize condensation. Moisture can causerusting of metal parts and deterioration of high voltageinsulation. A heat level of approximately 400 watts foreach 3 cubic meters of volume is recommended with theheaters distributed uniformly throughout the structurenear the floor.Indoor storage should be in a building with sufficientheat and circulation to prevent condensation. If thebuilding is not heated, the same general rule for heat asfor outdoor storage should be applied.WARNING