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Re: fuse alarm system...
bt in this diagram even if the fuse is blown the current will pass through the parallel led circuit which damages the load... when the fuse is blown, the circuit must get open and we must get an indication....
Question…
The railways are using hrc fuses in series. They have more than 30 fuses in series connections. If any one of the fuse is blown, they want to know which fuse is blown bcoz manually checking each fuse and detecting the faulty one is time consuming.
My idea…
The given circuit. Before...
the thing is i need to test hrc fuses ranging from 2-30 amps.. need to conduct 3 different tests.... over current, rated, and below rated... input must be 10-12 volt dc... so to get that dc input, i need to make an ac-dc convertor... :-)
i have to convert 230v ac to 12v dc with constant 30 ampere. application is hrc fuse testing for railways. i've a circuit shown below..
i need a simplified circuit..
i want to replace bridge rectifier. we are testing fuses from 1amp to 30 amp range.
so for that we are using 12volt dc input. so...
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