can you give main difference between ELCB And RCCB?
- 38 Answers
- 161099 Views
- MCB Bank, Reliance, Wipro, I also Faced
- E-Mail Answers
Answer Posted / raviraj.c
ELCB:-An ELCB is a specialised type of latching relay that
has a building's incoming mains power connected through its
switching contacts so that the ELCB disconnects the power
in an earth leakage (unsafe) condition.The ELCB detects
fault currents passing from live (hot) to the earth
(ground) wire within the installation it protects. If
sufficient voltage appears across the ELCB's sense coil, it
will switch off the power, and remain off until manually
reset. An ELCB however, does not sense fault currents
passing from live to any other earthed body.
RCCB:-A residual current device (RCD), or residual current
circuit breaker (RCCB), is an electrical wiring device that
disconnects a circuit whenever it detects that the electric
current is not balanced between the phase ("hot") conductor
and the neutral conductor. Such an imbalance is sometimes
caused by current leakage through the body of a person who
is grounded and accidentally touching the energized part of
the circuit. A lethal shock can result from these
conditions; RCDs are designed to disconnect quickly enough
to mitigate the harm caused by such shocks.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What happens to a motor if it is connected in Delta connection
Name the types of motors used in vacuum cleaners, phonographic appliances, vending machines,refrigerators, rolling mills, lathes, power factor improvement and cranes.
what is smartµ grid technology?under coal gassification?
Is it possible to obtain 480v or 550v in single phase output by giving the input to 230v to a single phase torodial type transformer without using a stepup transformer?
v/f drive basic princeple
if voltage bt phase & nutral is 38v in a panel board . whats the root cause.
A 3 phase transformer's (Y-Y) Y and B phase is (Y and B connection not broken) broken from neutral and R and Nutral connection is ok, what will be the relay tripping and why
i want wipro vlsi placement pattern please send me
IF % IMPEDANCE OF A TRANSFORMER IS INCREASED FROM 5.8% TO 8% HOW MUCH THE EFFICIENCY OF THE TRANSFORMER WILL COME DOWN?
i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value
in science exhibition how lamp can blink when you clap near the lamp ? thank you
What is resolution of a measurement?
Why it is necessary to isolate fire fighting when you are taking shutdown for lv board.
why dc is used in control circuit for mv & hv switchgear instead of ac
Enlist four components of electrive drives.
