Eaton VCP-W Series Instructions For Installation/operation/maintenance/servicing

Also see for 120VCP-W25: Installation, operation and maintenance Instructions for installation, operation and maintenance

Contents

13Instruction Booklet IB131006ENEffective March 2019Instructions for installation,operation, and maintenance of typeVCP-W vacuum circuit breakersEATON www.eaton.com2. Safe practices2.1 RecommendationsType VCP-W vacuum circuit breaker elements are equipped with highspeed, high energy operating mechanisms. They are designed withseveral built-in interlocks and safety features to provide safe andproper operating sequences.m WARNINGTO PROTECT THE PERSONNEL ASSOCIATED WITH INSTALLATION,OPERATION, AND MAINTENANCE OF THESE CIRCUIT BREAKER ELEMENTS,THE FOLLOWING PRACTICES MUST BE FOLLOWED.• Only qualified persons as defined in section 6.2.1 and withrespect to the local electric code, who are familiar with theinstallation and maintenance of medium voltage circuits andequipment, should be permitted to work on these circuit breakerelements.• Read these instructions carefully before attempting any installa-tion, operation or maintenance of these breakers.• Always remove the breakers from the enclosure before perform-ing any maintenance. Failure to do so could result in electricalshock leading to death, severe personal injury, or propertydamage.• BE EXTREMELY CAREFUL while the circuit breaker is on theextension rails. Use provided rail clamps to firmly hold the circuitbreaker on the extension rails while performing such activitiesas charging, closing, and tripping. Carelessness could cause thecircuit breaker to fall from the rails resulting in personal injury tothose in the area.• Do not work on a closed breaker or a breaker with closing springscharged. The closing spring should be discharged and the maincontacts open before working on the breaker. Failure to do socould result in cutting or crushing injuries.• Do not use a circuit breaker by itself as the sole means ofisolating a high voltage circuit. Remove the breaker to theDISCONNECT position and follow good lockout and tagging rules,as well as all applicable codes, regulations, and work rules.• Do not leave the breaker in an intermediate position in the cell.Always have the breaker either in the TEST or CONNECTEDposition. Failure to do so could result in a flash over and possibledeath, personal injury, or property damage.• Always remove the maintenance tool from the breaker after charg-ing the closing springs.• Breakers are equipped with safety interlocks. Do not defeatthem. This may result in death, bodily injury, or equipmentdamage.3. Receiving, handling, and storage3.1 GeneralType VCP-W vacuum circuit breaker elements are subjected tocomplete factory production tests and inspection before beingpacked. They are shipped in packages designed to providemaximum protection to the equipment during shipment and storageand at the same time to provide convenient handling. Tools, such asthe maintenance tool, are shipped separately.3.2 ReceivingIf the circuit breaker element is not to be used immediately but isto be placed in storage, maximum protection can be obtained bykeeping it packed as shipped.Upon receipt of the equipment, inspect the containers for any signsof damage or rough handling. Open the containers carefully to avoidany damage to the contents. Use a nail puller rather than a crow barwhen required. When opening the containers, be careful to saveany loose items or hardware that may be otherwise discarded withthe packing material. Check the contents of each package againstthe packing list.Examine the circuit breaker element for any signs of shippingdamage such as broken, missing, or loose hardware, damaged ordeformed insulation, and other components. File claims immedi-ately with the carrier if damage or loss is detected and notify thenearest Eaton office.3.3 Handlingm CAUTIONDO NOT USE ANY LIFTING DEVICE AS A PLATFORM FOR PERFORMINGMAINTENANCE, REPAIR, OR ADJUSTMENT OF THE BREAKER OR FOROPENING, CLOSING THE CONTACTS OR CHARGING THE SPRINGS. THECIRCUIT BREAKER ELEMENT MAY SLIP OR FALL CAUSING SEVEREPERSONAL INJURY. ALWAYS PERFORM MAINTENANCE, REPAIR, ANDADJUSTMENTS ON A SOLID WORK SURFACE CAPABLE OF SUPPORTINGTHE BREAKER ELEMENT.When a breaker element is ready for installation, a lifting yoke inconjunction with an overhead lifter or portable floor lifter can be usedto move a breaker element. When a breaker element is to be lifted,position the lifting yoke over the breaker element and insert liftersinto the breaker element side openings with the lifting hole towardthe interrupters. Once the lifting yoke is securely seated in theholes, the breaker element can be carefully lifted and moved. Also,a breaker lift pan in conjunction with the portable floor lifter can beused to create a breaker lifter. The breaker can be placed or rolledonto the lift pan with the conductors arms pointing away from thelifter (see IB022015EN for more details).3.4 StorageIf the circuit breaker element is to be placed in storage, maximumprotection can be obtained by keeping it packed as shipped. Beforeplacing it in storage, checks should be made to make sure that thebreaker element is free from shipping damage and is in satisfactoryoperating condition.The circuit breaker element is shipped with its contacts open andclosing springs discharged. The indicators on the front panel shouldconfirm this. Insert the maintenance tool in the manual chargesocket opening (Figure 5). Charge the closing springs by pumpingthe handle up and down approximately 38 times until a crisp metallic“click” is heard. This indicates that the closing springs are chargedand is shown by the closing spring “charged” (yellow) indicator.Remove the maintenance tool. Operate the push-to-close button.The breaker element will close as shown by the breaker contacts“closed” (red) indicator. Operate the push-to-open button. Thebreaker element will trip as shown by the breaker contacts “open”(green) indicator. After completing this initial check, leave the closingsprings “discharged” and breaker contacts “open”.