How we calculate airgap between phases & terminal box of
the transformer? any formulae.
Answer Posted / dr rajan
There is no formula. It is always a thumb rule. The dielectric
break down of air is about 6kv/cm of gap. So depending on the
terminal voltage, use a rational distance keeping in mind the
connecting terminal dimensions of the cable. An average of 15
cm space between phases in 11Kv accepted as a practice.
Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
why is control bus bi-directional?
what is the profesional board for electrical engineer what is thepast and during construction for electrical engineering
What happens if the series current double?
Dg pf .71 i am improve pf 0.80 what capacitor connected in dg how?
IF ANYONE HAVE ANY QUESTION ASK ME AT MY MAIL anmol.bhardwaj5@gmail.com
What is Electrical Grade Aluminum for Tubular BusBars. i am confused between 6063 and T6 or T5 and what is BS 2898 and BS 159?
1) What are your personal strength? 2) What are your personal areas of improvement? 3) What are your expectations from from a particular job? 4) what are your carrier objectives?
Can anybody tell abt concrete encased earthing or grounding?
What is the de rating factor of cable? What is the importance of the de rating factor in cable select
When we giving the 3 phase supply to ups system how to coming netural?
what is the safe meggar values for motor, transformer HT, LT and Cables? IF we want to replace I/C bay at our 220 kv substation which is of 140 mw load capacity bay to be replaced by 400 mw capacity bay.other than CT(1200/1) what are the other equipment i have to replace. why we generally use 3.5 core cable or in other word 1/2 core for neutral and also confirm me that in balance conditiob(3 phase)current in neutral will zero
what is magnetizing and demagnetizing current in generator and motor?
I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?
im working in one private compeny in gujarat. i was complet diploma electric in 2010 from gujarat technical board. now i want electric supervisor licence in gujarat but i dont't know when i apply? plz give me address of the licence dippartment office in gujarat. gandhinagar
What are the limitations of Kirchoff's laws?