Triping principle of ELCB&RCCB? wht is the difference between these two?

Triping principle of ELCB&RCCB? wht is the difference
between these two?

Question Posted / deepu

2 Answers
4487 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

Triping principle of ELCB&RCCB? wht is the difference between these two?..

Answer / bibhas

ELCB is Earth leakage circuit breaker. It is very sensitive.
Even if there exists a minor leakage current, it will
immediately trip. Whereas RCCB is residual current circuit
breaker. It will trip only above the set trip value

Is This Answer Correct ?

6 Yes

0 No

Triping principle of ELCB&RCCB? wht is the difference between these two?..

Answer / k.prakashchandra

ELCB requires earth connection. Earth wire is taken through
ELCB to the body of the appliance.If there is any leakage
current in the earth wire ,it will trip.4 pole or 2 pole
RCCB requires neutral.It works on the principle that vector
sum of the currents in phases and neutral is zero or current
balancing.If there is any leakage current to the earth it
will be sensed by only phase and not the neutral resulting
in tripping.3 pole RCCB is for a 3 phase load without neutral.

Is This Answer Correct ?

1 Yes

0 No

Post New Answer

More Electrical Engineering Interview Questions

what is the difference between watts and volts?

2 Answers

we r having 3 core 3 1/2, 4 core cables how we can know this cable has to be used for this purpose?

5 Answers

what happens when back feeding supply accidently collapses with normal supply ??? How?? [that is sometimes in a substation 11kv feeder if their ws long time permit work, back feeding supply will provide from nearest substation... if accidently after the permit work,they charged the feeder without removing back feeding wat will happen...?]

1 Answers KSEB,

what is the difference between synchronous motor and induction motor?

3 Answers

full form of electrical?

0 Answers CEAT,

In our generating power station we get electric shock in the battery bank, what will be the reason?

3 Answers

why power dissipation is due to low frequency?

1 Answers

whytransformers rating in KVA?

3 Answers Chettinad,

what type of oil is used in transformers? a)conduting b) insulating