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Electrical Engineering

TESTING OF DC MACHINE

  1. SWINBURNE'S TEST (NO LOAD TEST) - For determination of CONSTANT LOSSES

  2. RETARDATION TEST(Running down test) - For determination of STRAY LOSSES IN CASE OF DC SHUNT MACHINE

  3. HOPKINSION TEST (Regenerative test, Heat run test ,Back to back test) - For determination of PERFORMENCE OF MACHINE REGARDING COMMUTATION AND TEMPERATURE RISE

  4. OPEN CIRCUIT TEST -For determination of CORE LOSS

  5. SHORT CIRCUIT TEST - For determination of COPPER LOSS

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