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 Categories >> Engineering >> Electrical Engineering
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Question Asked @ Answers Views     Select
How to find the maximum load that can supply by a particular(say 315kva) KVA rated transformer? me   2  468
why should be the frequency is 50 hz only why not others like 45, 95 56 or anything , why should we maintain the frequency constant if so why it is only 50    2  932
WHAT IS METHOD TO DESIGN SIZE OF A 11KV UNDER GROUND CABLE FOR A OUTGOING FEEDER FEEDING 6NOS 250KVA TRANSFORMERS WITH 5KM LENGTH OF FEEDER?    1  334
WHY DOES NEUTRAL DO NOT CARRY EVEN THOUGH IT CARRIES RETURN CURRENT?    3  812
How can I indicate rpm on digital rpm meter with help of simple tacho output? tacho output is 90v at 3000rpm. godrej   2  454
what is sevice settings for mccb?How can be it setted?    1  535
it is possible to run 130V AC and 230 V AC cables run in same tray    2  407
Can we step up a 230V supply to 400V using a single phase transformer??    2  1438
what is difference between isolation and ultra isolation transformer?, what is the method of testing ?    0  459
c. int m = 10; main() { int m = 20; {int m = 30;} printf("%d %d",m,::m); 1. 10 10 2. 10 20 3. 20 10 4. 20 30 5. 30 20 6. None    2  399
a. void main() { char a[6] = "INDIA"; while(*a) { printf("%c",*a); a++; } } 1. india 2. I N D I A 3. no output 4. error 5.Null    1  1537
what ll happen if neutral is not shorted with phases while doing transformer short circuit test & what ll happen if neutral is connected to ground?    1  392
what kelvin's law ?    0  158
which motor is used in watch..??????    3  2082
E.B sending end to receiving end 33kv ug cable laid 8Km,receiving end to ss1,ss2,ss3,ss4 all are Approx 800 Mtr,can go for 33KV to 430V or 33kv to 11kv in receiving end and 11kv to 430 near ss ,which one is good for technically and economically. jll   0  156
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Un-Answered Questions
 
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why are distributed windings generally used in alternators? 138
Stator of 3-phase IM has 3 slots per pole per phase. If supply frequency is 50 Hz, calculate the speed of rotating stator flux A 1000 rpm B 500 rpm C 1500 rpm D 1440 rpm 52
How short circuit MVA(Fault MVA) in a power system calculated for calculating number of earth plates ? 151
what is earth pit , how we can measured it, what earth rods reference 233
what are the preventive maintanance actions taken for air circuit breaker? please answer me 133
is IS says that neutral should be brought to switch box. and this one is a recomended practice 190
A ray hit a smooth regular surface at an angle of 20 from the normal. Calculate : 1. The angle btw the incident and reflection ray. 2. The angle of deviation. 136
what is the illumination level required for child play area? 139
what does a k rating in a transformer means? 147
low frequency protection why recomend? 171
Why do we need a separate control desk & PLC control panel in Boiler plant or coal handling plant? Can we provide cost effective Control desk cum PLC panel. Is there is an specific need for control desk.. kindly advice. 106
iam using DM 3251 voltmeter(1 percent accuracy)for 11KV system PT ratio is 11KV/110V.can anybody explain what is the max and min voltage deviation. 282
Explain the propagation of harmonics in the network and influence of phase angle of harmonics. 127
1.why are not using acb 33kv ht side? is there any problem 2.what is difference between acb,vcb,sf6 breackers? 3.what is the function of invertor and convertor in ups? 203
What is difference between start imitation and start interlock for 3 phase motor protection ? 266
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