Virtual Labs

The transmission voltage in India are _____________

a: 400kV Explanation

Explanation

b: 220kV Explanation

Explanation

c: 132kV Explanation

Explanation

d: All Explanation

Explanation

Transmission network is commonly known as ____________

a: Pan Explanation

Explanation

b: Lock-head Explanation

Explanation

c: Grid Explanation

Explanation

d: All Explanation

Explanation

_________ is one of the best conductors due to its high electrical conductivity and high tensile strength for all type of transmission.

a: Phosphor brown materials Explanation

Explanation

b: Galvanised iron Explanation

Explanation

c: Aluminium Explanation

Explanation

d: Copper Explanation

Explanation

The advantage of using suspension type insulators over pin-type insulators is _________

a: Cheaper in cost for operating voltage above 50kV Explanation

Explanation

b: Flexibility is increased with suspension insulators Explanation

Explanation

c: If line insulation needs to be increased, the additional insulators can be easily added to the string Explanation

Explanation

d: All Explanation

Explanation

Reason for failure of insulator is ________ .

a: Mechanical stress Explanation

Explanation

b: Short circuits Explanation

Explanation

c: Flash-over Explanation

Explanation

d: All Explanation

Explanation

A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by_________

a: Overhead Explanation

Explanation

b: Short circuit Explanation

Explanation

c: Both Overhea and Short circuit Explanation

Explanation

d: None Explanation

Explanation

The advantage of using oil in OCB as an arc quenching medium is:

a: It has high dielectric strength Explanation

Explanation

b: As a result of decomposition of oil, it has good cooling property Explanation

Explanation

c: Both It has high dielectric strength and As a result of decomposition of oil, it has good cooling property Explanation

Explanation

d: Highly inflammable Explanation

Explanation

Fault scenario simulation in a feeder