Eaton 75VCPW-VSR Instruction Book

Contents

16Instruction Book IB02707112EAugust 201550/75VCPW-VSRBreaker To Vacuum Starter Replacement UnitEATON CORPORATION www.eaton.comSECTION 5: INSPECTION, MAINTENANCE,AND INSTALLATION WARNINGALL WORK PERFORMED ON THIS STARTER SHOULD BE DONE WITH THEMAIN DISCONNECT DEVICE OPEN AND LOCKED OUT. AS WITH ANYSTARTER OF THIS VOLTAGE, THERE IS DANGER OF ELECTROCUTION AND/OR SEVERE BURNS. MAKE CERTAIN THAT POWER IS OFF. CHECK FORVOLTAGE WITH VOLTAGE SENSOR OR A METER OF THE APPROPRIATERANGE. MAKE CERTAIN THAT ALL TRANSFORMERS ARE ISOLATEDTO PREVENT FEEDBACK AND THE RESULTANT GENERATION OF HIGHVOLTAGE.The starter should be serviced on a regular basis. The time intervalbetween maintenance checks is variable and dependant on factorssuch as environment, duty cycle, etc. Unless the experience of themaintenance personnel suggests a different service interval, thecontactor should go through a checkout after each 50,000 operationsor annually, which ever occurs first.5.1 GENERALThe starter should be kept clean and free from dust and otheraccumulated deposits. Dust can be removed from the starter bywiping with a lint free cloth.Inspect for loose joints that produce excess heat and discolorconductors. Verify that insulation has not been damaged by hightemperatures. Do not over-torque bolts while verifying tightness.Hardware is both Metric and US standard sizes. Refer to Table 5.3for recommended torque values. WARNINGBEFORE PLACING THE STARTER IN SERVICE, CAREFULLY FOLLOW THEINSTALLATION PROCEDURE IN THIS MANUAL AND THE SAFE PRACTICESSET FORTH IN SECTION 2. NOT FOLLOWING THE PROCEDURE MAY RESULTIN INCORRECT STARTER OPERATION LEADING TO DEATH, BODILY INJURY,AND PROPERTY DAMAGE.When the starter is first commissioned into service and each timethe starter is returned to service, it should be carefully examined andchecked to make sure it is clean and operating correctly.5.2 EXAMINATION FOR DAMAGEExamine the starter for loose or obviously damaged parts. Neverattempt to install nor operate a damaged starter.5.2.1 NAMEPLATE VERIFICATIONCompare the starter nameplate information with switchgeardrawings for compatibility. Starter and compartment code plates domatch power ratings, but do not match control voltages.5.3 INITIAL INSPECTION AND OPERATIONInspect the starter for any damage that occurred during shipment,storage, and installation.Set the dip switches in the coil control board for the proper controlvoltage and dropout time (Figures 4.1 and 4.2 and Tables 5.1 and5.2). When control information is supplied, dip switches will befactory set.Sequence the control circuit, including closing the starter with themain power circuits de-energized and locked out.Verify that the starter will be connected to an incoming powersupply and outgoing load with characteristics agreeing with thestarter rating and coil burden requirements.1 2 3 4 5 6ONOFFDip SwitchFigurt 5.1. CNil CNnorNl BNard wioh Dip SwiochFigurt 5.2. CNil CNnorNl BNard RtmNvalTablt 5.1. Dip Swioch Stooing-CNnorNl VNloagtSetting SW1 SW2 SW3110 vAC 50 Hz Off Off Off120 vAC 60 Hz On Off Off220 vAC 50 Hz Off On Off240 vAC 60 Hz Off On Off125 vDC Off Off OnTablt 5.2. CNnorNl BNard DrNpNuo StooingsDelay Setting SW4 SW5 SW630 ms Off Off Off50 ms On Off Off130 ms Off On Off250 ms On On Off330 ms Off Off On