22-12-2012, 03:09 PM
LOAD TEST ON SINGLE PHASE TRANSFORMER
LOAD TEST ON SINGLE PHASE TRANSFORMER.docx (Size: 13.45 KB / Downloads: 30)
PROCEDURE
The connections are given as per the circuit diagram.
The DPST switch is closed.
The terminal (secondary) voltage of the transformer is adjusted to the rated value by varying the auto transformer.
The initial readings of all the meters are noted.
The load is applied in steps.
At each step of loading all the meters readings are noted.
The procedure is repeated till ammeter reads rated current of the secondary side.
PRECAUTION
All the switches are kept open initially.
The auto transformer is kept at minimum potential position at time of starting and stopping the experiment.