Question 1

The effect of corona can be detected by

Accepted Answer

A) presence of zone detected by odour 
B) hissing sound 
C) faint luminous glow of bluish colour 
D) all of the above

Question 2

Electro-mechanical voltage regulators are generally used in

Accepted Answer

A) reactors 
B) generators 
C) transformers 
D) all of the above

Question 3

Which of the following equipment, for regulating the voltage in distribution feeder, will be most economical ?

Accepted Answer

A) Static condenser 
B) Synchronous condenser 
C) Tap changing transformer 
D) Booster transformer

Exam 4: Electrical Transmission and Insulation

The effect of corona can be detected by