Answer Posted / mohammad
Earthing Switch is necessary to earth the conducting parts
before maintenance and also to provide deliberate
short-current while testing.This enables various tests to be
performed on the Switchgear or item of equipment, such as
testing the current Transformer of measuring the operating
time of breakers, without having to open the enclosure.
During normal operation the insulation is bypassed by a
short-circuit-proof link.
| Is This Answer Correct ? | 28 Yes | 7 No |
Post New Answer View All Answers
working of diesel generator ?
how is the cable tray designed & how its total length is calculated for an Industrial plant Say for Ex. (500KW Motor Load)
what is the difference between circular wdg & ractangular wdg?
Is it good to short Neutral and Ground in the PLC or DCS main Power supply. Pls give YES or NO with reasons...? Simarpreet
Anybody tell me about modbus hex address of l&t trivector meter er300p??I want to read voltage,current,kwh etc via rs485...If anybody have a manual then send on my mail..Brijeshmodi18@gmail.Com
What do you mean by a phase angel of instrument transformer?
to hook up ten 50 amp rv pedastels at a lenth of 600 feet from the service what size will my service need to be and the size of wire will I have to run to each pedastel in series??????
Can the output voltage of a rectifier be greater than the input AC voltage without the use of any voltage multiplier in the circuit??please provide the explanation too..
can we use ZNyn11 transformer instead of Dyn11 transformer in distribution for effectively eliminating harmonics from the industrial loads.
how to operate and maintenance of 1500 kva diesel generator set
When are the directional relays used?
Motor,transformers,capacitor tubelight etc....
how to select automotive wire by mathematical equation with given current, vlotage and resistance
For group 1 , 2 whather i have to prepare my technical or general studies etc? and im graduate in ee engg. for wht posts im eligible for? please tell me!
Can clean earth cable be considered as low current cable