Reliance Retail Operations Manager Interview Questions, Process, and Tips

Secondary side current calculations involve determining the current flowing through the transformer and DG.

• Calculate the load current on the secondary side of the transformer using the formula I2 = (I1 * V1) / V2

• Calculate the current output of the DG using the formula I = P / V

• Consider factors such as power factor and efficiency in the calculations

• Ensure that the current ratings of the transformer and DG are not exceed

Transformer protections include overcurrent, differential, and earth fault protection.

• Overcurrent protection is used to detect and isolate faults in the transformer winding or connected circuits.

• Differential protection compares the current entering and leaving the transformer to detect internal faults.

• Earth fault protection detects faults between the transformer winding and earth.

• Other protections include overvoltage, ...read more