Induced Voltage Test of Transformer

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Induced Voltage Test of Transformer

induced withstand test of transformer
The induced voltage test of transformer is intended to check the inter turn and line end insulation as well as main insulation to earth and between windings-

  1. Keep the primary winding of transformer open circuited.
  2. Apply three phase voltage to the secondary winding. The applied voltage should be twice of rated voltage of secondary winding in magnitude and frequency.
  3. The test should last for 60 seconds.
  4. The test shall start with a voltage lower than 1/3 the full test voltage, and it shall be quickly increased up to desired value.

The test is successful if no break down occurs at full test voltage during test.


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