Grasim Industries Assistant Electrical Engineer Interview Questions and Answers

Power factor is a measure of how effectively electrical power is being converted into useful work output.

• Power factor is the ratio of real power (kW) to apparent power (kVA) in an electrical system.

• It is a number between 0 and 1, with 1 representing perfect efficiency.

• Low power factor can result in increased energy costs and inefficient use of electrical power.

• Power factor correction can be implemented to improve effic...read more

Power factor is the ratio of actual power to apparent power in an electrical system.

• Power factor is a measure of how effectively electrical power is being used in a system.

• It is calculated by dividing the actual power (in watts) by the apparent power (in volt-amperes).

• A power factor of 1 indicates perfect efficiency, while a lower power factor indicates inefficiency.

• For example, if a system has an actual power of 800W ...read more

Brushless excitation of a generator eliminates the need for brushes and slip rings, improving reliability and reducing maintenance.

• Brushless excitation systems use a rotating rectifier to convert AC to DC power for the generator field winding.

• This design eliminates the need for brushes and slip rings, which can wear out and require regular maintenance.

• Brushless excitation systems are more reliable and efficient compare...read more