A. Stepping Down the Voltage
B. Stepping Up the Voltage
C. Supplying low voltage current to instrument
D. Both Stepping Up and Stepping down the voltage
B. Stepping Up the Voltage
C. Supplying low voltage current to instrument
D. Both Stepping Up and Stepping down the voltage
Answer: D. Both Stepping Up and Stepping down the voltage
Explanation:
Tap Changing Transformer
- The purpose of a tap changer is to regulate the output voltage of a transformer by altering the number of turns in one winding and thereby changing the turns ratio of the transformer.
- Tap changing Transformers are employed for both stepping up and stepping down the voltage.