which protection function should measure RMS value of current&DFT value of current?

1474

iam working in power plant. In hot places tube lights are glowing at the end portion only. what is the reason for that?

1466

how the speed of the gets motor regulated. does it draw the same current on the all speed level.

1461

What is the most accurate way of testing ELCB?ELCB is better than RCD?

2882

What is the end effect of linear induction motor ??

1574

I want to know how to calculate the size of electricity cable in building?

1538

An ELHNC 80amp 240v 30mA RCD is tripping periodically, every 30 - 180 seconds is it safe to disconnect the protection circuit?

1626

How to select batteries required for ups and the inverter if we Known load? And how AH is selected of battery?

892

if an insulated power and control cables of a running gas diesel gensets laid direct in an open trench i.e, trench bed is not rcc of a power house in which rain water, spillage water alwas exists and all power control cables remains submerged even when gas gensets of 480 kw each runningin on load. These power &control cables runs from power house to switchgear room through these trenches in which water remains most of the time. pl explain its merit & de-merit

1408

what are the applications of transistors with low dc gain, high dc gain and medium dc gain( beta)?

1308

11 kg trivevter meter has rating of -/5amps. And pt ratio11000/110v and is connected with 11kv ct/pt unit of cr ratio 75/5amps. And pt ratio of 11000/110v while checking accuracy of meter with HT Accuchek meter what value of PT ratio and CT ratio to be filled in Accuchek meter

1213

How to calculate Ith (I thermal) for curent transformer

1572

which type of cabel

1928

if a.c supply is given to the motor,, what happen?

1687

how to calculate cooling requirement of datacentre from electrical load?

1868