Interested to Buy Any Domain ? << Click Here >> for more details...
A 12.5 hp slip ring motor taking high initial current and its MPCB is
getting open.what may be the reason?
- 3 Answers
- 5325 Views
- I also Faced
- E-Mail Answers
Answer Posted / kiran
use megger and test for shorted ground and chech resistance of the winding.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
what is the carona effects meaning in HT line transmmission system
why US countries maintains 110v and 60HZ
I need bhel electrical test pattern & paper
in wind mill use 2100 kw asychronous generator ( induction generator ) rotor voltage : 3300,stator voltage : 690, rpm : 1511 type : MRL063E04 ' we check rotor resistance magger value found following. R-EARTH - 00 M.OHM,Y-EARTH-34 M.OHM,B-EARTH- 33M.OHM R-Y: 31 M.OHM, Y-B: 00 M.OHM,B-R :33 M.OHM HOW CAN I TAKE DECISION?pls ans. quickly
How to choose size of the cable w.r.to current carrying capacity ...
difference between Ac and Dc mcb ????
What do you mean by dependent and independent voltage sources?
distribution is maximum done by a)radial b)network c) parallel d)b & c
ult of expression 'document.FrmQF.myem
what are the applications of transistors with low dc gain, high dc gain and medium dc gain( beta)?
whatare the disadvantages occur,if the form factor of transmission will not be equal to 1.11
how to calculation increase capacitor,increase power factor for three phase.
in conventional fan regulators how the current varies with speed?
When we use air circuit breaker, it has O/L protection ,time delay SC protection, Instataneous SC protection & ground fault protection. They all have some setting range. But what is the suitable/allowable setting for the above protection which will be safe for the equipment? For example-O/L protection setting have a range of (0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.8,0.9,1.0)xIn Time delay SC protection have a range of (1.25,1.5,2,3,4,6,8,10,12)xIn Time delay setting is 0.02,0.1,0.2,0.3,0.4 Instataneous setting is fixed to 20xIn Gound fault setting is given 100A,300A,600A,900A,1200A This setting are for 2500A ACB. So what will be the basic allowable setting for the above protection? is there any formulae to calculate this<
what is the difference between directional & non directional earth fault with example please explain.
