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Auxiliary Power Supply System. By CGS Gunasekara. Content. Why auxiliary supply is needed ? Equipments supplied through auxillary. Modes of operation. Demonstration of operation. Why auxiliary supply is needed ?

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Presentation Transcript
content
Content
  • Why auxiliary supply is needed ?
  • Equipments supplied through auxillary.
  • Modes of operation.
  • Demonstration of operation
slide3
Why auxiliary supply is needed ?

To supply power to generator/turbine and other ancillary equipments for their operation.

slide4

Equipments supplied by auxiliary.

Common supplies

  • Lighting system
  • Annunciators & indicators, alarms
  • Ventilation system (supply fans, Exhaust fans)
  • AC system (compressures, blower fans)
  • Battery charging system (220 V , 48 V)
  • Drainage pumps
  • Communication system
slide5

Turbine & Generator

    • Instrumentation (metering)
    • Protection relays
    • Bearing oil pumps
  • Air compressors
    • (to operate governor equipment
    • Turbine , break system)
  • Cooling water pumps (stator coolers, bearing oil coolers)
  • Bearing oil pumps
  • Generator Heaters
modes of operation
Modes of operation

(1) From 220 KV bus through main T/F1,2,3 and through HAD3,5, or 6 (to both ESS & Non-ess sides)

(2) Generators through HAD3,5 or 6 (to both ESS & Non-ess sides)

(3) DG ( only to ESS side, can not extend to Non-Ess side)

slide11

Demonstration of operation

Auxiliary supply system demonstration.exe

Note: To run the exe file,

1. Down load the APSS.rar file .

2. Unzip that file to the same folder where APSS.ppt is available.

3. Now, click above link

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