GTT Foundation Interview Questions and Answers

An induction motor is a type of AC motor that works on the principle of electromagnetic induction to convert electrical energy into mechanical energy.

• Induction motors are commonly used in various industrial applications due to their simplicity, reliability, and low cost.

• They consist of a stator (stationary part) and a rotor (rotating part) where the rotor is not connected to an external power source.

• When an alternating current is applied to the stator windings, a rotating mag...read more

Substation use equipment refers to the various devices and tools used in a substation for power distribution and maintenance.

• Substation transformers

• Circuit breakers

• Disconnect switches

• Voltage regulators

• Capacitor banks

• Protective relays

A generator is a device that converts mechanical energy into electrical energy. It functions by rotating a coil of wire within a magnetic field to produce electricity.

• Generates electricity by converting mechanical energy into electrical energy

• Consists of a coil of wire rotating within a magnetic field

• Used in power plants, backup generators, and portable generators

Transformers function to change voltage levels in electrical systems.

• Transformers increase or decrease voltage levels in electrical systems

• Step-up transformers increase voltage for long-distance transmission

• Step-down transformers decrease voltage for distribution to homes and businesses

• Transformers help maintain power quality and efficiency in electrical grids