jackman435
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- Fort Dix, NJ
I'm looking for an online tutorial for MV primary distribution. Specifically, I'd like to know where to use a load break, insert , feed thru load break, or a dead break
MV load breaks
- Thread starter jackman435
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- Massachusetts
Maybe I am wrong but that sounds dangerous.
People who design MV distribution have years of training, I don't see it as a online tutorial.
you can download Eaton consulting guide for free and go through section 1 which covers basics of power system distribution and configurations.
big john
Senior Member
- Location
- Portland, ME
These all serve different purposes depending on what the design of your system is, so it's not like these are interchangeable components.
You use feed-through bushings when you have a network connection where you don't necessarily want to interrupt power by removing a single load-break, or else if someone wanted to avoid setting a sectionalizing cabinet and wanted to use their transformer to extend a circuit.
Because load-breaks are interrupting current there are design limitations to how much power they can interrupt. I've never seen a load-break greater than 200A, so if you have circuit capacity higher than that, you are forced to used dead-breaks by default.
You use feed-through bushings when you have a network connection where you don't necessarily want to interrupt power by removing a single load-break, or else if someone wanted to avoid setting a sectionalizing cabinet and wanted to use their transformer to extend a circuit.
Because load-breaks are interrupting current there are design limitations to how much power they can interrupt. I've never seen a load-break greater than 200A, so if you have circuit capacity higher than that, you are forced to used dead-breaks by default.
Yes, this is an excellent place to start. I sold plenty of their WLI switches and lineups. The most important think to remember is that they are switches and not breakers and use of the correct fuses are an extremely important part of the assembly. They are a load break switch but do have their limitations when it comes to a power factor correction capacitor load.
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