ITS Planners and Engineers Graduate Trainee Interview Questions and Answers

Power factor is the ratio of real power to apparent power in an AC circuit.

• Power factor is a measure of how efficiently electrical power is being used.

• It is expressed as a decimal or a percentage.

• A power factor of 1 means all the power is being used efficiently.

• A power factor less than 1 means some power is being wasted.

• Inductive loads like motors have a lagging power factor while capacitive loads like transformers hav

Types of motors: AC motors, DC motors, stepper motors. Types of switchgear protection: fuses, circuit breakers, relays.

• AC motors: used in high power applications, such as industrial machinery and air conditioning systems

• DC motors: used in low power applications, such as toys and small appliances

• Stepper motors: used in precision applications, such as robotics and 3D printers

• Fuses: protect electrical circuits from overlo...read more