what is the differn bitween RCCB &MCB
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Answer / shantanu
RCCB means residual current circuit breaker and MCB means
miniature circuit breaker.The difference between RCCB and
MCb is : RCCB Protects against residual leakage current.The
ratings are mentioed as 30mA,100 mA etc.But MCB only
protects against short circuit.
| Is This Answer Correct ? | 22 Yes | 2 No |
Answer / bhigesh
residual cercuit breaker and miniture circuit breaker
| Is This Answer Correct ? | 2 Yes | 1 No |
Answer / satish
RCCB are also called as ELCB Earth Leakage Circuit Breakers
and they are also available in 20mA, 100mA.
| Is This Answer Correct ? | 4 Yes | 4 No |
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When we use air circuit breaker, it has O/L protection ,time delay SC protection, Instataneous SC protection & ground fault protection. They all have some setting range. But what is the suitable/allowable setting for the above protection which will be safe for the equipment? For example-O/L protection setting have a range of (0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.8,0.9,1.0)xIn Time delay SC protection have a range of (1.25,1.5,2,3,4,6,8,10,12)xIn Time delay setting is 0.02,0.1,0.2,0.3,0.4 Instataneous setting is fixed to 20xIn Gound fault setting is given 100A,300A,600A,900A,1200A This setting are for 2500A ACB. So what will be the basic allowable setting for the above protection? is there any formulae to calculate this<
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