What is difference between MCB,MCCB,ELCB and RCCB?
Brief description and why RCCB is costly?
Answers were Sorted based on User's Feedback
Answer / waqa ahmed
mcb
miniature circuit breaker
mccb
moulded cage circuit breaker
elcb
earth leakage circuit breaker
Is This Answer Correct ? | 4 Yes | 0 No |
MCB is miniature circuit breaker which is thermal operated and use for short circuit protection in small current rating circuit,Normally it is used where normal current is less than 100A,
MCCB moulded case circuit breaker and is thermal operated for over load current and magnetic operation for instant trip in short circuit condition,Normally it is used where normal current is more than 100A.
RCCB is used to detect earth leakage fault.once there is a ground fault in the load side,current from phase will directly pass through earth and it will not return through netural through RCCB,that means one side current is going and not returning and hence beacuse of this difference in current RCCB will trip and it will safe guard the other circuits for fault loads,that why cost of RCCB also costly
Is This Answer Correct ? | 3 Yes | 0 No |
Answer / dixit
mcb
is a circuit protecting device which has a definite current rating which protects selective rating of the MCB which we choose.
MCCB
is also a circuit protective device we can change minimum to maxium value of current rating which can select .
ELCB
which sens the leakage current if any in the circuit,and trip the circuit immediatly
Is This Answer Correct ? | 3 Yes | 1 No |
WHY BREAKER ARE USED IN SUBSTATIONS?
Why the ceiling fan rotates in clockwise direction and table fan rotates in anticlockwise direction.
3 Answers Kirloskar, MPF, Wipro,
How is the speed of a DC shunt motor related to the armature current?
Is phenomenon of resonance is harmfull fr the machine? if not or if yes please explain it?
what is a DLC?[just dont reply its a Dual loop controller!] Plz do Explain the advantage of DLC over PLC?
WHY IL=IPH IN STAR AND WHY IPH=IL/1.732 IN DELTA? WHAT IS REASON BEHIND IT?
how to calculate the knee point voltage of current transformer?
Can anyone please give me the parameters , formula needed to calculate the circuit breakers for building services.Thanks
operating Lt & HT voltages used in India?
How can we explain that what is the power factor?
In a transformer, the hysteresis and eddy current losses depend upon 1.load current 2.maximum flux density in core 3.type of lamination 4.supply frequency The correct statements are (a) 1 and 3 (b) 2 and 3 (c) 1 and 4 (d) 2 and 4
Explain why the Voltage drop will happen in 3 Phase line?