What is difference between MCB,MCCB,ELCB and RCCB?
Brief description and why RCCB is costly?
Answer Posted / g.t.manikandan
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 |
Post New Answer View All Answers
i need to now what will be the cable size to the following load, transformer to distribution panel distance 110m, load 1000kw, voltage 400v, pf 0.85, permissible voltage drop 2.0%, overhead line, atmospheric temperature 35 degree c.
What is lighting kitts.
what is servo motor & how does it work.
On Which Pressure PRV is operated.
How to calculate Grid rotor resistance(GRR) losses in slip ring induction motor?
what the function breaker failure scheme, how is it operated
1)What is a Triode? What are its uses? 2) What is a Triac? 3) What is a Thyristor?
How we can come to know the substation range,without go through any name plate ?
How to synchronization will be done between two DGs ?
Following test should be conducted to find out relative polarity of transformenr terminals A no load test B back to back test C phasing out test D none of above
What is creepage distance..... what will be the value for different voltage level
Define Electrical Insulation and examples of Solid,Liquid and Gaseous insulating materials?
Why wind turbines wheels rotate constantly
Explain thin film resistors and wire-wound resistors
What is the difference between a verilog task and verilog function?