dielectric strength of vacuum is greater than SF6 but for 132Kv uses sf6 break

dielectric strength of vacuum is greater than SF6 but for
132Kv uses sf6 breaker & for 33kV uses vaccum breaker why such
a contradiction?

Question Posted / vishal madhukar dilpak

2 Answers
4757 Views
MSETCL Maharashtra State Electricity Transmission Co Ltd, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

dielectric strength of vacuum is greater than SF6 but for 132Kv uses sf6 breaker & for 33kV us..

Answer / abhi

i think the arc quenching in sf6 is better than vacuum. so for 33kv vacuum is usedc whereas for 132kv sf6 is used...

Is This Answer Correct ?

2 Yes

1 No

dielectric strength of vacuum is greater than SF6 but for 132Kv uses sf6 breaker & for 33kV us..

Answer / sathyamoorthy r

my idea 132kv vacum circuit breaker ,vacum create is most costly & difficult compare sf6 so usely sf6 and low kv use vacum . another difficult arc quencing medium is high for sf6

Is This Answer Correct ?

1 Yes

1 No

Post New Answer

More Electrical Engineering Interview Questions

what is diff kav & kvarh?

3 Answers

What is working principle of washing machine?

9 Answers IBPA, Samsung,

the power consumption of perminant magnet moving coil?

1 Answers

What is the count of hvdc transmission lines in india?

0 Answers

how can calculate resistance box for 15 kw, 6 pole, RV-230, RA-42 motor

0 Answers

why the capacity of power plant is given in MW though the generators are rated in MVA?

3 Answers TATA,

what is the equation of converting KW into HP ?

4 Answers

What is the difference between RMS and average value

5 Answers CEERI, HPCL,

In simply words(not explain any formula )what do you mean by power factor.?

5 Answers DRDO,

Baud rate is used to descrice...?

2 Answers

why do we prefer VCB over OCB? what are the advantages of Vaccum Ckt. Breaker over Oil Ckt. Breaker?

2 Answers

List any four conventional sources of energy.

1 Answers

For more Electrical Engineering Interview Questions Click Here