Answer / omar aziz

ELCB= Earth Leakage circuit breaker
RCCB= Residual current circuit breaker

elcb looks for current flowing in the earh wire and is it
does not equate to the phase current , earth leakage is
detected an the CB trips.

rccb looks for the residual current ,by adding the phasor
current . upon any imbalance the CB trips on residual earth
fault.

Answer / k.rajeesh

ELCB= Earth Leakage circuit breaker
RCCB= Residual current circuit breaker

elcb looks for current flowing in the earh wire and is it
does not equate to the phase current , earth leakage is
detected an the CB trips.

rccb looks for the residual current ,by adding the phasor
current . upon any imbalance the CB trips on residual earth
fault.

Answer / velusamy

The ELCB works on the principle that the total amount of
current flowing thro the phase is returned thro neutral. if
not so , elcb trip the circuit.

For RCCB, i agree with ans 1 & 3

Answer / karthik

RCCB: detects current imbalance.but does not provide over
current protection.
ELCB: detects earth current directly rather than detecting
imbalance.

Answer / vinodh.t

ELCB= Earth Leakage circuit breaker
RCCB= Residual current circuit breaker
both are same..the objective of elcb is continuous
monitoring of insulation levels of electrical installation
and equipments and also detect any leakage current flow to
earth

If 3-Ph motor of same rating connected in Delta & Star for same load one by one then which connection take more current in running (not in starting)for full load.(eg 8.5 KW,3-Ph 400 V)

1 Answers   GE,

How to calculate energy stored in an inductance?

0 Answers  

According to IEC60034-14, When the vibration monitoring system required for motor Bearing. above which KW, it is required? and for what type of bearing the vibration probe is provided.

0 Answers  

Which type of Oil is used in transformers, & what is its strength?

1 Answers  

What is cut-off rate?

0 Answers  

operation of diesel generator

0 Answers  

How many distance in distribution pole OR 33Kv line pole

2 Answers   Sail,

what is the use of pmg in exciter?

3 Answers  

What is the use of 1:1 isolation t/f in any circuit...?

3 Answers  

what is the need of reactor in between the transmission line?..like powergrid like that..

5 Answers   Delta Roto Tech,

show that power dissipated by a pure inductor exited by a sinusoidal voltage source v = vm sin wt is zero

1 Answers  

what is the disadvantages of common earthing for AC and DC equipment? (i am talking about inverter control room and inverter duty transformer earthing is common...?)

0 Answers   TATA,