Wind World Diploma Electrical Engineer Interview Questions and Answers

VFD stands for Variable Frequency Drive which controls the speed of an AC motor by varying the frequency and voltage of the power supplied to the motor.

• VFD controls the speed of an AC motor by adjusting the frequency and voltage of the power supplied to the motor.

• It helps in saving energy by matching the motor speed to the actual load requirements.

• VFD provides protection to the motor by monitoring parameters like curre...read more

A substation is a part of an electrical generation, transmission, and distribution system that transforms voltage levels.

• Substations are used to control and distribute electrical power.

• They contain transformers to change voltage levels.

• Substations may have circuit breakers to protect against faults.

• They can be indoor or outdoor installations.

• Substations play a crucial role in the power grid.

• Examples of substations incl...read more

Wind turbines convert wind energy into electricity through the use of blades that spin a generator.

• Wind turbines use the kinetic energy of the wind to generate electricity

• Blades on the turbine spin a generator to produce electricity

• Wind speed and direction are important factors for efficient turbine operation

Transformers are electrical devices that transfer electrical energy between two or more circuits through electromagnetic induction.

• Transformers work on the principle of electromagnetic induction

• They consist of two coils of wire, known as the primary and secondary windings

• The primary winding is connected to a power source, creating a magnetic field

• This magnetic field induces a voltage in the secondary winding, transferr...read more