Answer / yash sharma

no of disc = (operating voltage per phase)/11 kv
= (66/1.73)/11
=4
one extra disc for safety purpose : 5 discs

Answer / rakesh shandilya

There are four in suspension and five in strain for 66 kv line.

Answer / shahzad

number of discs=(Line Voltage/13.2Kv)
for 66kv line
number of disc=66kv/13.2kv=5discs
for 10 discs line voltage=132kv

Answer / manikandan

FOR 11KV ONE DISK INSULATOR IS BEEN INSTALLED SO FOR 66KV 6
DISK WILL BE NEEDED

Answer / rajesh bangar

6 isolator disc is used in 66kva

Answer / girish ringat

No. Of disc = (Line voltage)/13.2kv
So line voltage =66kv
So. No. Of disc = 66÷13.2
=5 disc

Answer / pramod

min. six isolator disc is used in 66 KV

Answer / deepak sindhi

For 66kV wants insulater r disk is 7 nos. bcz. always one disk extra mount

Answer / jitu

1 disc is used for 11kV so for 66kV 66/11=6 discs

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