Answer Posted / kj
Insulators are generally white inside. A glase is put on
them during firing. The colour of the glase depends on the
manufacturer. Many have used brown but many others have
used white or blue glase as well.
As far as the insulating properties of the insulator it
generally does not matter what the colour is as long as it
does not conduct.
| Is This Answer Correct ? | 7 Yes | 1 No |
Post New Answer View All Answers
how you taken aotitude test
why in the three pin plug all 3 pins are cutted ?
i want to know how to determine that a surge arrester work properly in 11kv system. and how to test a 12kv surge arrester
What is the implications when 600 hp motor is started when the unit is running with Transformer of capacity 1500 KVA and DG set of 1000kva
following are the questions asked in interviews: 1) Considering the short circuit fault, which switchgear is preferable, SFU OR MCCB? Which operates faster? whicg one is popular in Indian Market and why? 2)Define SCPD. What is type2 coodination? 3)Why the contactor rating is higher for the fuseless selection than for fuse selection? whether the ratinf of SFU or MCCB remains the same in both the cases? 4)If the HP rating is known then can you calculate the ratings of L.V Switchgear(SFU/MCCB, contactor, OLR) without using the selection chart?
Why does the speed regulating system adopting I controller have no steady-state error? In this single closed-loop speed regulating system, when the input of the I controller Un=0, what is the output voltage of the regulator? What factors do the output voltage depend on?
What is difference between safe PLC and normal PLC
why sometime we get electrical shock while touching the ballon of dish tv connection ? which we should not get.
Why is it prefer to initiate circuit breaker failure by "86" lockout relay not by "94" tripping relay ?!
Load break swicth maintenance procedure.
Batteries. What is the difference between Lead and Nickel batteries ?
Why MCCB is Getting tripped sometimes when there is no load in the Midnight ?
what will happen if OLR CT in all phases are short circuted
Why we are using only Dyn11 tranformer in distribution system but not using a Dyn1 in distributing system?why not and advantage and disadvantage in both
HOW TO WRITE A QUENTION ANSWER? I MEAN SHORT OR LENGHTHY ? OR FROM THE BOOK AS BOOK..... SOME TIME WE GIVE A ANS FROM THE BOOK AS LIKE BOOK ND WE GET MINIMUM 60% MARKS OR MORE THEN....... THEN HOW TO FILL THE Q-PAPER?