What are some of the Tests performed on transformers?

Normal, routine production tests include:

1. core loss;
2. load loss – winding or copper loss;
3. Impedance;
4. hi-pot – high voltage between windings and ground;
5. induced – double induced two times voltage.

Optional special tests include:

1. heat run – temperature testing;
2. Noise tests – sound level measurement;
3. impulse tests – BIL tests:
4. partial discharge