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Standard Handbook for Mechanical Engineers 2010 Part 15

Tham khảo tài liệu 'standard handbook for mechanical engineers 2010 part 15', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 15-46 ELECTRICAL ENGINEERING Equipment of Standard Panels Following are enumerated the various parts required in the equipment of standard panels for varying services Generator or synchronous-converter panel dc two-wire system 1 circuit breaker 1 ammeter 1 handwheel for rheostat 1 voltmeter 1 main switch three-pole single throw or double throw or 2 single-pole switches. Generator or synchronous-converter panel dc three-wire system 2 circuit breakers 2 ammeters 2 handwheels for field rheostats 2 field switches 2 potential receptacles for use with voltmeter 3 switches 1 four-point starting switch. Generator or synchronous-motor panel three-phase three-wire system 3 ammeters 1 three-phase wattmeter 1 voltmeter 1 field ammeter 1 double-pole field switch 1 handwheel for field rheostats 1 synchronizing receptacle four-point 1 potential receptacle eight-point 1 field rheostat 1 triple-pole oil switch 1 power-factor indicator 1 synchronizer 2 series transformers 1 governor control switch. Synchronous-converter panel three-phase 1 ammeter 1 power-factor indicator 1 synchronizing receptacle 1 triple-pole oil circuit breaker 2 current transformers 1 potential transformer 1 watthour meter polyphase 1 governor control switch. Induction motor panel three-phase 1 ammeter series transformers 1 oil switch. Feeder panel dc two-wire and three-wire 1 single-pole circuit breaker 1 ammeter 2 single-pole main switches potential receptacles 1 four-point for two-wire panel 1 four-point and 1 eight-point for three-wire panel . Feeder panel three-wire three-phase and single-phase 3 ammeters 1 automatic oil switch three-pole for three-phase two-pole for singlephase 2 series transformers 1 shunt transformer 1 wattmeter 1 voltmeter 1 watthour meter 1 handwheel for control of potential regulator. Exciter panel for 1 or 2 exciters 1 ammeter 2 for 2 exciters 1 field rheostat 2 for 2 exciters 1 four-point receptacle 2 for 2 exciters 1 equalizing rheostat for regulator. Switches The current-carrying