in 132 kv substation ligtning arrestor(120 kv) connected to line. but line vol

in 132 kv substation ligtning arrestor(120 kv) connected to
line. but line voltage comes to 132 kv, it operate or
not???

Question Posted / yanamadalaashok

4 Answers
16821 Views
Divis Laboratories, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

in 132 kv substation ligtning arrestor(120 kv) connected to line. but line voltage comes to 132 kv..

Answer / vettum perumal

Ligtning Arrestors are connected across one phase and
earth. Hence,the insulation of the arrestor shall be
suitable for only phase voltage. that is, 132kv/root3 =
76KV.Hence, these 120 KV LA will operate very well.

Is This Answer Correct ?

26 Yes

0 No

in 132 kv substation ligtning arrestor(120 kv) connected to line. but line voltage comes to 132 kv..

Answer / s.rajasekar

the lightinig arrestor connected with line in parrallel
then the volage range will divided by root 3.so the
insulation level of the arrester is suitadable for 132kv
system

Is This Answer Correct ?

15 Yes

3 No

in 132 kv substation ligtning arrestor(120 kv) connected to line. but line voltage comes to 132 kv..

Answer / avradeep das

In any conductor of 132 KV transmission line rated voltage
with respect to ground(remember LA is connected between one
conductor/phase and earth)is 76(approx) KV so 120 KV is
adequate

Is This Answer Correct ?

6 Yes

1 No

in 132 kv substation ligtning arrestor(120 kv) connected to line. but line voltage comes to 132 kv..

Answer / jakeer

Yes Deffinatley it will operate.

Is This Answer Correct ?

3 Yes

3 No

Post New Answer

More Electrical Engineering Interview Questions

how winding temperature detects in power transformer...?

5 Answers Roverco,

at what basis/standard we have to arrive the current density of aluminium/ copper in busbar?

0 Answers ONGC,

What is electrical diversity factor in electrical installations?

0 Answers

In pakistan appliances work on 220v at 50hz and in us appliances work on 110v at 60hz what is basic theory to explain it

1 Answers SNGPL,

Sparking occur when a load is switched off because the circuit has high – a.) Inductance b.) Capacitance c.) Resistance d.) None

3 Answers Ecil,

define electrical field?

6 Answers L&T,

Why we are use dol starter up to 10 hp

0 Answers

We are getting supply at33kvand it stepdown to 11kv.So Our requirement is 11kv voltage.why we draw 33kv from the grid instead of 11kv?

2 Answers Birla,

What is Nominal voltage?

3 Answers Bhel, Equate,

In our plant we have installed new MCC with ELR and CBCT which is detecting some leakage current in the system but it leading to some confusion when to check that in which feeder which is drawing current we put off the whole panel itself but still CBCT detecting some leakage current so can anybody ans me , where i am going wrong or how to detect whether its actual leakage or CBCT malfunctioning.

0 Answers Saint Gobain,

The series field winding has low resistance while the shunt field winding has high resistance. Why?

0 Answers

What type of surgery impedence with 200ohs

1 Answers

For more Electrical Engineering Interview Questions Click Here