The insulation resistance of a cable can be measured by3 3936
Starting times for soft starter & power factor is thier any standard or datas available in manufactures list. Kindly suggest.1406
i want to measure voltage difference between neutral and earth so i just simply use voltmeter. my question is that may i use this measure continuosly.or there are some electricity board restrication on that? or it creat some problem on my measuring device..?
while doing high potential for 11KV 3 core cable how much leakage current will obtain?, what will be acceptance value?2359
Why neutral is used in electrical system?2 2489
How we can measure the thickness of bus bar for a given load ? any farmula Plz elaborate clearly.2 6460
why we don't use air circuit breaker on H T line in place of vacuum circuit breaker ?2 5134
IT IS SAID THAT THE OLTC OPERATION SHOULD NOT BE PERFORMED WHEN THE TRANSFORMER IS GENERATION TRANSFOREMR/STEP UP MODE. WHY IS IT SO?1 2917
why star point of HT motor not earthed?
what is meant by directional earth fault and non directional earth fault? describe both.
What are operating procudures & Safety precautions to be observed while operating OLTC in manual mode ?
A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.
Pl. share your experience about industrial-electronics repair of machine tool.
in indoor type circuit breakers why only the corner breaker trips specially during cold season. What is the reason.
what is difference between speed mode and torque mode in motor?? explain in simple words please.
what will be the maximum winding temperature of 6.6kv HT motor 450kw, Full load current 49A. 50Hz Frequency.
why transformer ratings in kva? & DG ratings in kva? & Motor ratings in kw/HP?
How can we measure the residual voltage in dc machines?
What is the formula to calculate the rating of power cable for three phase current.
What is the Good Earth resistance value of G.I & Cu. Chemical Earthing & Normal Pipe Earthing?
what is parellel power factor correction?
Can any body tell me the different types of LT cables & their application.
what is integrated ac contact circuit