Eaton COOPER POWER SERIES Installation, Operation And Maintenance Instructions

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Eaton COOPER POWER SERIES Installation, Operation And Maintenance Instructions Manual pdf 6 page image

Product informationDescriptionVR-32 voltage regulators from Eaton operate to keepvoltage levels within programmed limits to improve powerquality and are compatible with SCADA and automationdistribution systems.Available in pole-, platform-, and pad-mounted andsubstation configurations, VR-32 voltage regulators aresuitable for three- or four-wire overhead and undergroundsystems.VR-32 voltage regulators are regulating auto-transformers.They regulate rated voltage from 10% raise (boost) to 10%lower (buck) in 32 approximately 5/8% steps.The 65 °C rise insulation system and the sealed-tankconstruction allow for a bonus capacity 12% above the 55°C nominal rating without loss of normal insulation life. Thebonus capacity is stated on the nameplate. For example,A 167/187 kVA rating indicates a nominal rating of 167 kVAand a bonus capacity rating of 187 kVA.Unit construction, which suspends the internal assemblyfrom the cover, allows for ease of inspection andmaintenance.Eaton manufactures four types of step-voltage regulators:source-side series winding (Type B), load-side serieswinding (Type A), series transformer (Type TX), and seriesauto transformer (Type AX). VR-32 voltage regulators areusually equipped with an equalizer winding. The nameplateslocated on the tank and control box define the powercircuit.VR-32 voltage regulators are supplied with the followingstandard features:●● Dual-rated 55/65 °C average winding rise●● ADD-AMP™ capability●● Sealed-tank construction●● Pressure relief device●● 18" minimum-creep bushings with clamp-type connectors●● MOV-type external series arrester●● Shunt-arrester mounting bosses●● Two aluminum, laser-etched nameplates●● Insulating fluid 25 °C level sight gauge●● Upper filter press connection●● Drain valve and insulating fluid sampling device●● CE mark compliant control●● Control cable quick connect/disconnectFigure 1 Quick connect/disconnect cableAvailable optionsAvailable options include:●● Extended-length, quick-connect cable in various lengthsup to 120 feet.●● Armored cable●● Shielded cable●● Adjustable galvanized-steel elevating structure●● Supplemental external fusing to prevent damage fromreverse polarity connection to the external-sourceterminals●● Shunt surge arresters●● Insulating fluid thermometer with or without alarmcontacts●● Insulating fluid level gauge with or without alarm contacts●● Pressure and vacuum gauge with or without alarm contacts●● Rapid pressure-rise relay●● Stainless steel tank and cover●● Envirotemp™ FR3™ fluid●● Tank and control enclosure ground connectors●● Alternate top-coat color●● External stainless steel hardware●● Stainless steel control enclosure●● Stainless steel nameplates●● Substation base, below 167 kVA●● Pole-mounting brackets, on 333 kVA●● Wildlife guards●● 4-hole NEMA® spade bushing connectors2VR-32 Voltage Regulator with Quik-Drive™ Tap-ChangerInstallatIon, operatIon, and MaIntenance InstructIons MN225008EN February 2017