Interested to Buy Any Domain ? << Click Here >> for more details...
can you give main difference between ELCB And RCCB?
- 38 Answers
- 171701 Views
- MCB Bank, Reliance, Wipro, I also Faced
- E-Mail Answers
Answer Posted / shubham agrawal
ELCB is the old name and often refers to voltage operated
devices that are no longer available and it is advised you
replace them if you find one.
RCCB or RCD is the new name that specifies current operated
(hence the new name to distinguish from voltage operated).
The new RCCB is best because it will detect any earth
fault. The voltage type only detects earth faults that flow
back through the main earth wire so this is why they
stopped being used.
The easy way to tell an old voltage operated trip is to
look for the main earth wire connected through it.
RCCB will only have the line and neutral connections.
ELCB is working based on Earth leakage current. But RCCB is
not having sensing or connectivity of Earth, because
fundamentally Phase current is equal to the neutral current
in single phase. That’s why RCCB can trip when the both
currents are deferent and it withstand up to both the
currents are same. Both the neutral and phase currents are
different that means current is flowing through the Earth.
Finally both are working for same, but the thing is
connectivity is difference.
RCD does not necessarily require an earth connection itself
(it monitors only the live and neutral).In addition it
detects current flows to earth even in equipment without an
earth of its own.
This means that an RCD will continue to give shock
protection in equipment that has a faulty earth. It is
these properties that have made the RCD more popular than
its rivals. For example, earth-leakage circuit breakers
(ELCBs) were widely used about ten years ago. These devices
measured the voltage on the earth conductor; if this
voltage was not zero this indicated a current leakage to
earth. The problem is that ELCBs need a sound earth
connection, as does the equipment it protects. As a result,
the use of ELCBs is no longer recommended.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
how power is generated,and transmitted to our home..pls explain briefly in simple words.
What are the raitings of Mcb,mccb and Acb in detail ??
can any one tell in easy method for circulating current ??
What is the effect of positive feedback on stability of the system?
a battery is having capacity 100AH and 25% charging .if a load taking 10A & connected 6 hour .what is the final condition of the battery.
can anybody tell me that for p.f. Improvment we use capacitor banks but how to decide its capacitance. As we all know how to calculate kvar but what abt capacitance value
A generating system will have a total capacity of 300 MW. Find the probable forced outage when the capacity is supplied by two 150 MW units. The operating probability of all units is P=0.98 and forced outage probability rate Q =0.02 .
What will be the diameter of pipe between conservation tank and transformer
What is the basic principal, by which DC voltage level is increased more than the supplied AC voltage during conversion. As upto AC level it is contorrled by firing anlge but after maximum level how is it possible.Please clear picture. OR we have to supply the higher level AC?
sir please send me iocl written test paper in my e-mail account. i'll be obliged to you........ thank u roshan
How could a garment factory benefit from renewable energy
DERIVE AN EXPREION FOR MAXIMUM POER TRANSMISSION, WHAT ARE ITS APPLICATIONS.
why most of junction box vendors providing T5/T6 Temp class jb's for T3 area any special reason?
Block diagram of Power line communication?
What is mason's gain formula?
