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
14723 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

What are electric motors?

0 Answers

how can we determine size of a cable by knowing the kw or current rating of a load?how can we calculate the resistance box of a slip ring motor?

0 Answers TK Group,

Explain the iniluencc of short circuit ratio on the pert'orniancc of synchronous machine.

0 Answers

What is the maximun current carring capacity in per phase for three pole 100anps rating ncb

3 Answers L&T,

What are formula we can apply to determine the HT/LT current of 11KV/433V transformer except KVA/LV×√3. ?

2 Answers

What is the use of Gateway RTU like ABB RTU 560 in power plant, SAS system ?

1 Answers ABB,

In motors how many types of cooling systems were used?

0 Answers NTPC,

eddy current losses depends on?(a-max magnetic feild,b-avg magnetic feild,c-on frequency,d-on square of frequency)?

3 Answers Ecil,

power generation unit kw/hr or kw/day ?? please answer me engr_kalam@yahoo.com

3 Answers

what is the different between bus section and bus coupler

2 Answers

One B.O.T Unit ??

10 Answers

why we are caling 440 volt 3 phase supply instead of 660 volt 3 phase supply? because each phase as a voltage of 220 volt. if anybody know the answer for my question please send it to my mail id. thank you.

3 Answers College School Exams Tests, Jindal Steel and Power, JIOL, NEC,

For more Electrical Engineering Interview Questions Click Here