How ElCB tripping if Neutral touch with ground
Answer Posted / anil bhatia
The design of ELCB is such way that all current passes
from phase to neutral to complete the path . Any current
passes from phase or neutral to ground sense the circiut
that there is deflection of current and trips it to stop
supply.
| Is This Answer Correct ? | 6 Yes | 0 No |
Post New Answer View All Answers
how can we say that stator magnetic field rotates with synchronous speed?can we derive?
how hazordious area is classified at an oil & gas plant and categorise suitable class of electric equipment in that area like induction motors, LCS, Lighting Fixtures Fluerescent/Flood lights Mercury& sodium lights, J.Bs, Power Cables etc
What are IR values and what it should be for coil and for insulator
What is slip in an induction motor?
What is ignition module of a CAT Gas Genset G-3508 Engine, Alternator SR4B Series. HOw its checked for correct functioning.Is it repiarable or replacable?
List the disadvantages of constant k filters?
I need HT sphere gap calibration table. Can any body help me.
i have install 750 kva distribution transformer at my site and want to do neutral earthing. what calculations should i follow to determine earthing conductor material and size?
A 3-PHASE TRANSFORMER IS USED TO STEP-DOWN THE VOLTAGE OF A 3-PHASE, 11KV FEEDER LINE. PER-PHASE TURNS RATIO IS 12.FOR A PRIMARY LINE CURRENT OF 20A, CALCULATE THE SECOUNDRY LINE VOLTAGE, LINE CURRENT AND OUTPUT KVA FOR FOLLOWING.A)STAR- DELTA.B)DELTA-DELTA.
What is the vector group of a transformer,how can it be found out?
I have been using an 600VA with 0.6 p.f UPS with my desktop which has 450W power supply unit. Can anyone explain how can this happen . Because the output of the UPS is 360W (600*0.6) (<450W)
Trafo ratio is 11kV/6.6kv,Vector group is YND11. What will be the effect if secondary is used for earthed system.
How one may guess the direction from which the distribution line is incoming if there is no pole plate on poles?
what is residuel magnetism. and how order lead acid batteries for 24 volt. emergency lighting system.
write down the formula of cable size in RM if current is 50Amp.