Answer / hardik vyas

RCCB is Reverse Current Circuit Breaker which gives
protection against earth faults and leakages and is
basically to save people from electric shock.

MCCB is moulded Case Circuit Breaker which is used for
medium current range circuit breaking and gives protection
to system(equipment) against high current and short circuit.

Answer / annu singh

RESIDUAL CURRENT CIRCUIT BREAKER(RCCB) USED FOR PROTECTION
AGAINST EARTH FAULT . IT CONTAINS CORE BALANCE CURRENT
TRANSFORMER WHICH DETECTS EARTH LEAKAGE CURRENT.

Answer / murugesan

RCCB detect the leakage current and used for earth fault
and over current also, MCCB moulded case circuit breaker
only detect over current.

Answer / hardik vyas

Hey Saleem....RCCB will not work as a MCCB as it's current
carrying capacity is low.

Answer / guest

Residual current circuit breaker trips or give protction
against minor fault or leakage than MCCB.

Answer / saleem.d

RCCB :Recidual Current Circuit Breakar
Which will do both operations of ELCB and MCCB.

MCCB : Mould Case Circuit Breakar
Which operates under over current (short circuit )
conditions.

ANY COMMENTS ?????

how we can improove power factor?????????

8 Answers   TATA,

why induction motors are of lagging type and not leading type

9 Answers   Bhel,

Recently we had experienced following problem All RCCB breakers (connected to the load as well as spares) connected to various UPS systems at various floors at a high rise building tripped during a power break down and upon starting up of generator.This Generator is recently inducted into the installation. Can any one explain the reason behind this tripping. Regards Viswanathan

1 Answers  

what is the reactive power what is the use of it in system

0 Answers   L&T,

In Power cable specification what is U0/U and Um.

0 Answers  

Can you use a different size cable to complete a circuit if you run out what you are using?

2 Answers  

Earth is a conductor or load?then ammeter connect to 3- phase supply,it shows the measurents or not?

0 Answers   UltraTech,

how induction motor starts?

4 Answers   JSL,

if HT side voltage is high current is low . and LT side voltage is low current is high please explian.

5 Answers   HP,

why we used servo motor insted of inducation motor?

1 Answers  

what is corona ?

3 Answers  

On wat basis TSM & PSM are set? Example.TSM=30% n PSM=2.5A....Hw they are set and how we come to know that the particular relay should be set to this value only?

2 Answers