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

why phase always came one direction in 5pin socket(right hand or left hand) which direction and why..........?

4 Answers   Alstom, L&T,

circuit diagram of ht panel

0 Answers  

prefer any good electrical engineering book.....it should be useful in the practical fied?

1 Answers  

what is induction motor

2 Answers  

Consider a case that two 200 hp motors are connected to 500KVA transformer. For improving power factor can we add capacitors in common bus bars to motors. Or should we add capacitors for each individual motor?

2 Answers  

derive DC RMS value for half wave rectifier?

0 Answers   BARC,

battery capacity use of made?

0 Answers   JLL, Shankar Electricals,

why double earthing is required for welding machine & electrical tools.

7 Answers  

what is the difference b/w low voltage motors & medium voltage motors

1 Answers  

How to calculate the Short Circuit Impedance in Transformer?

3 Answers  

Transfer function is == ? a. Mathematical model b. System with no physical structure c. Can be calculated through differential equations

1 Answers   CCP,

I'm looking for a mnaual set for a Teradyne J750. Softcopy would be preferred but I'll take what I can get.

0 Answers