Eaton Cooper Power Series Installation, Instruction And Service Manual

Also see for COOPER POWER SERIES: Installation and operation instructions Installation instructions Installation instructions Installation and operation instructions Operation instructions

Contents

Eaton Cooper Power Series Installation, Instruction And Service Manual Manual pdf 26 page image

approved processes to put the voltage regulator intoservice. Once the regulator is in service, apply power tothe control by closing the V1 switch on the back panel.Once line power has been connected, perform theoperations check:1. Replace the motor fuse.2. Set the control POWER switch to INTERNAL.3. Set the CONTROL FUNCTION switch to LOCALMANUAL.4. Enter FC 12 – Present Tap Position.5. While monitoring FC 12, lower the tap position bypressing the LOWER control switch. The displayed tapposition will decrease and the regulator will lower onetap position.6. Lower the regulator until the LOW out of bandindication is observed.7. Place the CONTROL FUNCTION switch into the AUTO/REMOTE position. The regulator will time-out per thetime-delay value entered at FC 3, then will tap up untilback into band.8. Repeat the process by manually tapping to out-of-bandhigh.9. Return the regulator to the NEUTRAL position bypressing the appropriate RAISE or LOWER controlswitch. The NEUTRAL LIGHT will illuminate.10. Check the drag hand reset circuit by depressing theDRAG HAND RESET switch. The drag hands located inthe position indicator will reset to the position indicatorpointer position.11. Returned to the regulator to the neutral position whentesting is complete.Shop operations checkThe shop operations check is essentially identical to thefield check except that it is performed in the shop using a120 volt power supply instead of using line power to powerthe control. With a properly functioning control panel andproperly connected power supply, the high voltage bushingson the regulator will NOT be energized via a back-fed controlsignal. However, it is recommended that the bushingsbe connected to ground as a safety precaution whenperforming any control panel powered testing.For detailed instructions on externally powering of a voltageregulator control, refer to Service Information MN225003ENCL-7 Voltage Regulator Control Installation, Operation, andMaintenance Instructions for information.To power the control for the operations test:1. Make sure that the V1 switch on the back panel isopen.2. Connect 120 Vac to the EXTERNAL SOURCE terminalslocated on the control front panel. Be certain thevoltage polarity is correct when applying power to thecontrol - positive to the black terminal, neutral to thewhite terminal and ground to green.With 120 volts applied to the external source terminals,perform the following:1. Replace the motor fuse.2. Place the control POWER switch to EXTERNAL.3. Place the CONTROL FUNCTION switch to LOCALMANUAL.4. Enter FC 12 on the control keypad – Present TapPosition.5. While monitoring FC 12 lower the regulator by pressingthe LOWER control switch. The displayed tap positionwill decrease and the regulator will lower one tapposition.6. While monitoring FC 12, return the regulator to itsoriginal tap position by pressing the RAISE controlswitch.7. Check the drag hand reset circuit by depressing theDRAG HAND RESET switch. The drag hands located inthe position indicator will reset to the position indicatorpointer position.8. Check the neutral light circuit by manually raising orlowering the regulator to the NEUTRAL position. TheNEUTRAL LIGHT will illuminate.9. Returned to the regulator to the neutral position whentesting is complete.DANGERExplosion Hazard. Voltage regulators are subject to highcirculating current during bypass switching. Refer toService Information MN225003EN Voltage RegulatorCL-7 Series Control Installation, Operation, andMaintenance Instructions for information on the CRAControl, and refer to the instruction manual supplied bythe voltage regulator manufacturer for specific safetyprocedures for bypass switching. Failure to comply willresult in severe personal injury or death. VR-T214.0WARNINGHazardous Voltage. When applying external power to acontrol, an isolated power supply must be used. If thepower supply is not isolated and is connected with theincorrect polarity, it will cause the 120 Vac supply voltageto be shorted to ground. This can result in a shockhazard, damage to the control, damage to regulatorcomponentry, and damage to the power supply. VR-T245.022CL-7 control replacement assembly installation instructions and service information MN225017EN October 2016

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