### Testing of Transformer

- The following types of type test, routine test and special tests are performed on the power transformer.
- These tests are to be performed at ambient air temperature below 50 degree centigrade.
- The tests are to be performed at manufacturer’s place.

### Type tests

The following
types of TYPE test to be performed on the transformer.

- Winding resistance
- Voltage ratio and check of voltage vector relationship
- Impedance voltage / short circuit impedance considering principal tapping
- Load loss
- No load loss and current
- Insulation resistance
- Dielectric tests
- Temperature rise
- Tests on ON – load tap changer

### Routine tests

The following
type of ROUTINE tests to be performed on the transformer.

- Winding resistance
- Voltage ratio and check of voltage vector relationship
- Impedance voltage / Short circuit impedance on principal tapping
- Load loss
- No load loss and current
- Insulation resistance
- Dielectric tests
- Tests on ON load tap changers

### Special tests

The following special
tests are to be performed on the transformer.

- Dielectric tests
- Zero sequence impedance of three phase transformers
- Short circuit test
- Acoustic noise level
- Harmonics of no load current
- Power taken by fans and oil pumps

**You may also like :**

## No comments:

## Post a Comment