We know that Transformer, Generator, Alternator are rated in KVA. Designer of these equipments doesn’t know on which power factor this equipments will work. The working power factor of Transformer, Generator or Alternator depends on the nature of connected load such as resistive load, capacitive load, and inductive load. But Motors will work on fixed Power factor, i.e. motor manfacturer will decide on which power factor it should work for getting maximum efficiency and thats the reason why motor is rated in KW on Motor nameplate. That’s why Motors are rated in kW or HP (kilowatts/ Horsepower) instead of kVA.
No comments:
Post a Comment