D.P.Jindal Group Shift Incharge Interview Questions and Answers

The interview questions cover topics related to DC motors, speed control, transformers, and circuit breakers.

• DC motors convert electrical energy into mechanical energy

• Speed of DC motor can be controlled by varying the armature voltage or field current

• Transformers are of two types - step-up and step-down

• Vacuum circuit breakers use vacuum as the arc quenching medium while air circuit breakers use air

Rectifier converts AC to DC. IGBT testing involves checking its switching characteristics.

• Rectifier is an electronic device that converts AC to DC.

• IGBT (Insulated Gate Bipolar Transistor) is a power semiconductor device used for switching applications.

• IGBT testing involves checking its switching characteristics such as turn-on and turn-off times, voltage and current ratings, and thermal performance.

• Testing can be done ...read more