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

57Instruction Booklet IB131006ENEffective March 2019Instructions for installation,operation, and maintenance of typeVCP-W vacuum circuit breakersEATON www.eaton.com13. Evaluate the CloSure performance by comparing the test tapewith the illustrations in Figure 41. If the marking is similar to42, detail A, measure the over travel “x”. If “x” is greater thanor equal to 0.6 in. (15.2 mm), the circuit breaker performanceis satisfactory. If “x” is less than 0.6 in. (15.2 mm) or if themarking is similar to 42, detail B or 42, detail C, immediatelycontact the Product Integrity Center for Technical Support at(412) 787-6518.14. Remove the CloSure tool. Reassemble the front cover onto thecircuit breaker. Return the circuit breaker to its original configura-tion and setup.6.11 Mechanism lubricationFor breakers built prior to 01/01/18All parts that require lubrication have been lubricated during theassembly with molybdenum disulfide grease (Eaton Material No.53701 QB) which is no longer available. Over a period of time,this lubricant may be pushed out of the way or degrade. Properlubrication at regular intervals is essential for maintaining the reliableperformance of the mechanism. Once a year or every 500 opera-tions whichever comes first, the circuit breaker should be lubricated,as shown in Figure 24, with a drop of mineral oil.Table 26. Closure tool mounting/testing locations by circuitbreaker type.Breaker lineApproximatemechanismcabinetwidth (inch)UppermountingholeLowermountingholeMarkerplacementholeDHP-VR 2029A1A1B2B1C2C5VCPW-ND 20/21 A1 B2 C2VCP-W, 2933A1A2B2B2C5C6VCP-WR 182029A1A1A1B2B2B2C1C2C5W-VAC,W-VACR182533A1A1A2B2B1B2C1C4C6After lubrication, operate the circuit breaker several times manuallyand electrically.Roller bearings are used on the pole shaft, the cam shaft, themain link, and the motor eccentric. These bearings are packed atthe factory with a top grade grease, as specified by code, whichnormally should be effective for many years. They should not bedisturbed unless there is definite evidence of sluggishness, dirt, orparts are dismantled for some reason.If it becomes necessary to disassemble the mechanism, the bear-ings and related parts should be thoroughly cleaned. Remove oldgrease in a good grease solvent. Do not use carbon tetrachloride.They should then be washed in light machine oil until the cleaner isremoved. After the oil has been drawn off, the bearings should bepacked with Eaton’s synthetic grease.Eaton’s synthetic grease can be mixed with the molybdenum disul-fide grease with no side effects.For breakers built after 1/1/2018All parts that require lubrication have been lubricated during theassembly with Eaton’s new synthetic grease. Over a period of time,this lubricant may be pushed out of the way or degrade. Properlubrication at regular intervals is essential for maintaining the reliableperformance of the mechanism. Every 500 operations or 10 yearswhichever comes first, the circuit breaker should be lubricated.Roller bearings are used on the pole shaft, the cam shaft, the mainlink, and the motor eccentric. These bearings are packed at thefactory with a top grade synthetic grease which will be effective for10 years. They should not be disturbed.If it becomes necessary to disassemble the mechanism, the bear-ings and related parts should be thoroughly cleaned. Remove oldgrease in a good grease solvent. Do not use carbon tetrachloride.They should then be washed in light machine oil until the cleaner isremoved. After the oil has been drawn off, the bearings should bepacked with Eaton’s synthetic grease.6.12 Finger clusters and switchgear stab lubricationThe breaker finger clusters are shipped with a lubricating blue waxapplied from the factory and the switchgear stabs are shipped with alubricating blue wax applied from the factory. The blue wax is usedinstead of grease lubrication purposes for the following reasons:1. The blue wax has a higher melting point and a lower viscositypoint then grease. So the blue wax will stay on warm contactsurfaces instead of dripping off like some greases.2. Dust particles are less likely to stick to blue wax as opposed togrease. Dirty grease can be a poor conductor.3. The blue additive is added by Eaton to provide the ability toperform visual checks of the breaker finger cluster engagementon the switchgear stabs.The breaker should never be levered into the cell when the blue waxhas been removed from the breaker finger clusters or the switchgearstabs.When routine maintenance is performed on the breaker or switch-gear, the blue wax can be reapplied under de-energized conditions.The blue wax can be purchased from Eaton by ordering materialcode number 83342CE.6.13 Main contacts to switchgear primary engagementWhen the circuit breaker is in the complete and fully connectedposition, the circuit breaker main contacts should be engaged on theflat portion of the stationary primary contacts and not on the leadingradius.6.14 How to determine the manufacturing dateThe date code is located in the serial number - see the example:Serial no. X X X X X X X XXThe first four characters provide the date information. The first twocharacters are the year and the next two characters are the month.The last five characters are the production unit identifier.