Answer Posted / raul
Surge absorbers are protective devices used to absorb the
complete surge i,e. due to lightening surge or any
transient surge in the system..........unlike the
lightening arrestor in which a non-linear resistor is
provided which provides a low resistance path to the
dangerously high voltages on the system to the earth......
| Is This Answer Correct ? | 21 Yes | 1 No |
Post New Answer View All Answers
what is high and low cut off voltage of BB and DG at SPS????????
What is meaning of out of phase (making & breaking) capacity And how to calculate
What is the difference between isolators and electrical circuit breakers?
comparision between ACB and VCB
I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?
what is the effect of vector group while phase sequence of a generator changes,whether the vector group changes or not
Safety of on line ups
why do we use 25kv supply for traction purpose?
Apparent power is expressed as V * I(Conjugate). Why not in V * I ?
what is High resistance grounding and whatis the criteria for the selection of High resistance grounding
For a 6.6kV Motor it is recommended to do megger test with 500 V d.c and not more than 5kV d.c but the Hi voltage withstand test should be performed by 12kV AC. Why the dc voltage test should be limited but AC voltage withstand test could be with such a high voltage?
WHAT IS SHORT CIRCUIT STRENGTH OF 100 AMPS MCCB?
What is the basic principle of operation of alternators/dc generators?
WRITEDOWN FEW RELY CODES
Please brief me about number of pole in alternator.In single phase alternator coils are connected in star or series. How to calculate frequency for the same.
