can you give main difference between ELCB And RCCB?
- 38 Answers
- 160955 Views
- MCB Bank, Reliance, Wipro, I also Faced
- E-Mail Answers
Answer Posted / sabarikumar r
ELCB is a voltage operated device.RCCB is a current
operated device.IN ELCB, Trip coil is connected between
system ground and non current carrying part of the
machines.RCCB having CBCT(Core Balanced Current
Transformer).CBCT consists of 2nos of primary winding
(P1,P2) and one secondary winding(S1).Primary windings are
in series with the load and secondary winding connected to
Trip coil.In case of healty time, voltage in both the
primary windings will be cancelled and hence no voltage on
secondary winding.During the leakge or If any body touch
the live wires of the machines, current will passing
through the body and connected to ground.It will cause the
voltage difference in primary windings and induced voltage
in secondary operates the trip coil(operating time 50ms).
| Is This Answer Correct ? | 220 Yes | 48 No |
Post New Answer View All Answers
Why reactive power is needed in a power system? How is it being absorbed or delivered by alternators? For reactive power control we are changing excitation but reactive power absorbing or delivering related to stator. How these two are interlinked? i want a detailed explanation with necessary expressions and figures?
How can we measure earthing resistance test (Earth meggar) of Transformer neutral pit while in live condition?.
What is the control action?
Difference between a pilot wire and a normal conductor?
What do you mean by phasors?
how can we select the type of wire.what factors we have to look on it , do we have some formula to calculate it. please guide me on it
How Calculet The UPS AH In Load
What will happened if the neutral of secondary of Xformer ( Star point) Note it's above KVA rated Xformer
draw the full wave and half wave circuit of 3 phase system and inverter circuit used in ups
what is W.T?specify the acceptable range?
WHY IL=IPH IN STAR AND WHY IPH=IL/1.732 IN DELTA? WHAT IS REASON BEHIND IT?
why Current is lead 90 degree and voltage is lag 90 degree in a capacitor.? why Current is lag 90 degree and voltage is lead 90 degree in an inductor.?
how dia of wire and angles are calculated for overhead shielding wire to protect substation equipment from lightening strokes???
where the lexical paramater will use in fron end?
why you don not show protection and type of isolation in key single line diagram?
