what is power frequency withstand and impulse withstand of a
circuit breaker?
Answer Posted / ibrahim
the root mean square (r.m.s.) value of sinusoidal power
frequency voltage that the cb can withstand during tests
made under specified conditions and for a specified time
| Is This Answer Correct ? | 2 Yes | 7 No |
Post New Answer View All Answers
why induction motors are rated at 0.8 power factor.
we have 15 ampere variyac but we want 30 ampere variyac what we do
IF I KNOW THE AREA OF CROSS SECTION OFTHE WIRE , WATTAGE OF THE LOAD ,VOLTAGE SUPPLY WHAT IM GIVING TO THE LOAD AND ALSO POWER FACTOR OF LOAD ....... SO GIVE ME FOR WHAT AMOUNT OF CURRENT I SHOULD USE WHICH TYPE OF CABLE?
defult setting in p220 micom motor proction relay for 11kv,640kw,f.l.a.-40a,1440rpm ht motor?
ht side line to earth voltage
Why we find the sensitivity for the CT's to check?
How DC earth leakage currents can be reduced ?
Is it required to use Automatic transfer Switch in L&T panel board if we use AMF panel with DG set? How the single line diagram will be? Please forward the material to sreenu_207@yahoo.co.in
clarify types of motor operated valves and advantages
How to calculate multiplication factor in kva example 500kva ans pls ?
when generator short circuit condition, the current how dissipates. or at short circuit voltage not available then current how can flow?
how net resistance islow in star connection and viseversa in delta connection...? if anybody could explain in detail it wud be helpful.
I AM GOING TO ATTEND APTRANSCO ON 26TH OCT 08.PLEASE SEND ME ANY MATERIAL OR TYPE OF QUESTIONS OR EXP QUESTIONS.
Give the expression for the frequency of oscillations in an op-amp sine wave oscillator?
hi....I am from india..i have completed my engineering in electrical and electronics field with 58.4% and my IELTS score is 5.5 bands....Recently i received my I-20 in computer and information science from Troy university in Alabama.On 18th i have a visa interview can u please tell me what type of questions i have to answer ??????