On Monday, September 19, 2016 at 9:40:26 AM UTC-4,
lpard...@gmail.com wrote:
> As the plug of induction cooker put in the socket and switch on the main MCB trips instead of fuse in the ckt board.
> What should i check pls tell...
Are you sure the induction cooker is drawing too much current, or is your breaker just weak? Put an ammeter in circuit and see what it's drawing. If it's drawing less than the breaker's rating, change the breaker. Maybe the normal draw of the cooker is higher than your breaker's trip rating.
If the cooker is indeed the problem, then something must drive the induction coil. Check for shorted mosfets, igbts, or triacs.