I am working on some simple DC experiments and just generally screwing around with electricity, and I was wondering why the amperage rating on negative power supply rails is always only a few hundred milliamperes. If I want to provide 24VDC for a circuit by using +12v and -12v (is this correct?) am I limited to the current of the -12v rail? How does this work? Thanks.

sussex electric

To find out Fault Level, we have to know the System Impedence, How can we very instantly know the system impedence for a Electrical Distribution System

sussex electrics