Answer / sa

ElCB- Earth Leakage Circuit Breaker
RCCB- Residual Current Circuit Breaker

Answer / bala

Elcb is voltage operative devices. rccb is current
operative devices

Answer / sennapparajan

ELCB- earth leakage circuit breaker which will trips only
on earth fault or earthy leakage.

RCCB- Residual Current Circuit Breaker which will trips in
earth leakage as well as over current fault.

Answer / venkat narayana

Every body knows that ELCB ---> Earth Leakage Circuit
Breaker it itself indicate that whenever Current leaks and
go to Earth then it trip the circuit that called earth Leakage.

But where as RRCB Residual Cuurent .i.e sum of all Vector
sum is not equal to ZERO that is called Residual. Whcih
flows through the neutral, THis can set according to our
Load condition, that is it trip under Unbalnced currents.
Ir+Iy+Ib = In = 0 Noraml Condition
Ir+Iy+Ib NOt equal to ZERO, under unbalnced condition.

Further details can contact : venu24502yahoo.com

Answer / pillay

ELCB is actually voltage operated ie the leaked voltage difference between the faulty equipment's earth body and the earth electrode in the ground.If it exceeds about 40 volts it would trigger the ELCB to trip.If the cable to the earth electrode in the ground is broken or earth electrode is of very high resistance the ELCB will not trip even if there is a big voltage leak.So this is no good.
RCCB is actually seeing the difference in the current flowing in and out of the circuit.If the current that flows into a circuit and comes out is the same than no leak had taken place.If there is a leakage than the current that flows out of the circuit will be less.That means some current had flowed out to the earth or some where,than there is a fault the sensing circuit will detect the difference and trigger the RCCB to trip.RCCBs are rated by the sensivity of the leakage current normally by mAmps. If it is rated as 60 AMPS / 30 milliamps that means it can be used for a circuit of up to 60 Amps but if there is a leakage of 30 milliamps and above it will cause the sensing circuit to trigger the trip.Even if the earth electrode is open it will trip so long there is a flow of current away from the circuit maybe while electricuting somebody.

Answer / guest

rcbo Residual Current Breaker which will trips in
earth leakage as well as over current fault.

Answer / hardip dodiya

Venkat Narayana.

Ans of Venkat Narayana Sir, is 110% right good explanation
sir.

Keep going.

Any other answer is worthless.

Answer / pavan kumar

ELCB is a device which operate with earth leakage currents
i.e. very small currents (mA) but where as RCCB is only
concern to rated current i.e. it operates at more than
rated currents.

how to revers the direction of single phase motor

0 Answers  

Why the output of OP-AMP is always less than Vcc?

0 Answers  

How we select the cable rating

1 Answers   BTM, Videocon,

check list for anuval maintatince check list of oil transforms

2 Answers  

v=I*R, i.e V is directly proportional to I. now P=V*I. so V=P/I. thus v is inversely proportional to I. so what is the correct one? If both are correct than for which kind of condition this 2 differ

3 Answers  

what is the minning of propotional, integral, derivative ?

1 Answers  

i am iti student i have project to do. that IS 100MW 220\33KV SUBSTATION I WANT TO KNOW HOW TO START, LIKE CALCULATION, WHAT RATING OF CT,CVT, PT, ISOLATOR LIGHTING ARRESTER WAVE TRAP CIRCUIT BREAKER IN 22OKV SIDE, ALSO TO WARDS 33KV SIDE PLS HELP ME WITH THIS, THIS MY LIFE NOW, I KNOW AUTOCAD, I LIKE TO KNOW HOW TO CALCULATE ALL THE THINGS

3 Answers  

CAn any one can tell me what is the operation of ceiling fan and how it will start

2 Answers  

Why delta connected motors are used normally.

4 Answers  

how can we minimize the off load losses of a distribution transformer which is required to be energized 24x7 ?? capacity of the T/F is 1250 KVA and off load losses are around 2.0 KW.. can we use capacitor bank at the secondary of such a T/F to overcome off load losses? please elaborate briefly...thanks

2 Answers  

What is switch disconnector fuse?

1 Answers  

what is soft starter? what is the difference between soft starter and star delta starter?

1 Answers