Substation Interview Questions Answers
What are different insulators employed in substations?
Some of the insulators employed in substations are:
Hallow apparatus insulators
Solid core insulators
What is creepage distance?
Answer: Creepage distance is the shortest distance between two conducting points along the surface of the insulating material.
What is Basic Impulse Level (BIL)?
Answer: Basic Impulse Level (BIL) refer to the peak value of lightning impuse voltage withstand capability of the equipment
What are the disadvantages of corona?
Answer: Some of the disadvantages of corona are:
Corona causes power loss
Corona causes unacceptable noise
Corona cause radio interference