Eaton Cutler-Hammer Ampgard SC9000 Instructions Manual

Effective 11/97I.B. 48003Cutler-HammerInstructions for 36" Wide Vacuum-Break StartersRated 360 Amperes, 7200 Volts, Slide-Out TypeFig. 1 Ampgard® Motor Controller, 36" WideDANGERHAZARDOUS VOLTAGE.READ AND UNDERSTAND THIS BOOKLET IN ITSENTIRETY BEFORE INSTALLING OR OPERATINGCONTROLLER. INSTALLATION, ADJUSTMENT, REPAIRAND MAINTENANCE OF THESE CONTROLLERS MUSTBE PERFORMED BY QUALIFIED PERSONNEL. AQUALIFIED PERSON IS ONE WHO IS FAMILIAR WITHTHE CONSTRUCTION AND OPERATION OF THISEQUIPMENT AND THE HAZARDS INVOLVED.THE CONTROLLEREach Ampgard® motor starter (controller) consists of onenonload-break isolating switch, one or more Type SJS,NEMA Size H6, vacuum-break contactors, current-limitingfuses, a set of current transformers, and some form ofoverload protection. The isolating switch has a limitedmake and break rating, suitable only for closing andopening limited magnetizing current loads. The controller isdesigned to start, stop and protect a three-phase medium-voltage motor within the ratings shown in Table I. Thecontroller may also be used to switch transformer windingsor capacitor banks. Each Ampgard® controller occupies allor a portion of a steel structure that may also enclose ahorizontal bus system to distribute power to two or moresections and a vertical bus system in each section con-nected to the horizontal main bus system. The controllersare configured for full-voltage or reduced-voltage starting,reversing or nonreversing, single-speed or two-speedapplications.TABLE I. AMPGARD ® EQUIPMENT RATINGSContinuous 50 or 60 Hertz Interrupting Capacity, 50-60 Hz IsolatingRange Of Normal Current Horsepower Rating (rms) Symmetrical At SwitchSystem Utilization Rating Synchronous Motor Induction Nominal Utilization Voltage Make/BreakVoltage Voltage Enclosed 80% P.F. 100% P.F. Motor Fuses Controller Ratings2200-2500 2300 360A 1500 1750 1500 50,000 Amp 200,000 kVA 750 VA3800-5000 4000 360A 2500 3000 2500 50,000 Amp 350,000 kVA 600 VA6200-7200 6600 360A 4000 5000 4000 50,000 Amp 570,000 kVA 600 VANonmotor Applications at: >>>>>>>>> 2200 - 2500 Volts 3800 - 5000 Volts 6200 - 7200 VoltsTransformer Switching Rating = 1250 kVA 2250 kVA 3000 kVACapacitor Switching Rating = 1200 kVAR 2100 kVAR 2400 kVAR