Answer / guest

ELCB is basically voltage operated tripping mechanism.When a
voltage exists between the earth and frame the tripping coil
is activated.If the earth connection is bad the tripping coil
will not operate.
RCCB is an improvement of the voltage operated tripping
mechanism.This is current operated. If the leakage current is
of the designed minimum amount the tripping mechanism is
activated.So if the earthing connection to the ground is bad
but the leakage occurred through a person to the ground the
RCCB will still trip.

Answer / prabhu

elcb means-earth leakage circuit breaker
rccb-residual current circuit breaker

Answer / simon

elcb means-Earth Leakage Circuit Breaker
rccb-Residual Current Circuit Breaker

BOTH R TWO FACES OF A COIN.

Answer / omprakash sahu

Elcb is working based on Earth leakage current. But Rccb is
not having sensing or connectivity of Earth, because
fundamentally Phase current is equal to the neutral current
in single phase. That’s why RCCB can trip when the both
currents are deferent and it withstand up to both the
currents are same. Both the neutral and phase currents are
different that means current is flowing through the Earth.
Finally both are working for same, but the thing is
connectivity is difference.

Answer / bhushan

Both are same

What is the instrument to check the rotating diode fuse of alternator in running conditions?

0 Answers  

Elaborate the term "rotating magnetic field"

2 Answers   APTransco,

working principles of a generator

3 Answers   Cairn,

whats is MARX CIRCUIT?

1 Answers  

WHY TRANSFORMER RATING IS MENTIONED IN KVA RATHER THAN KW

5 Answers  

How can we get a Neutral from a three phase suply? If we meet all three phases at a point to take neutral then why dont thay get sparked?

1 Answers  

where this neutral connection goes after returning from the load(home ,factory,industries).Is it grounded at the transformer side or atthe generator side .If it is grounded then we also ground the earth connection.is there any problem with this.

1 Answers   IOCL,

how we calculate size of exciter(excit. volt and current) for generator?

1 Answers   century,

I have 90KW Motor 60 Hz,380V Pf 0,88. after testing the Motor without Load is the no load Current 36 A,but wenn i put load after 2 hours the current increase more than 156 A. Can anybode tell me waht is the Problem?

4 Answers   ABB,

1kva=how many kw & amps

4 Answers   Jakson,

3.7 kw motor ,how much sq mm cabel want to bare this motor load

1 Answers  

how dc ct works?

3 Answers