HV Switching-JCPL

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Lady Engineer

Lady Engineer

Senior Member
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New Jersey
I need to add a 4 way High Voltage Switch...

Here's the scenario..

I'm doing a campus for a school. The utility is JCPL in New Jersey. I need to add a 4 way switch to provide power to 3 transformers which in turn will provide power to 3 buildings. Shall I just have each HV line (on the load side) come off of each leg of a switch, or shall I tap the off of the unswitched side of one? While you're at it, do you have a diagram?? Sorry guys...if you need more, tell me! :D
 
Sorry....

I have a 12.3KV primary service I am installing or designing, rather. I need to provide power to 3 buildings. There will be a transformer for each building. On the line side of the switch will be just the utility pole, but on the load side will be the 3 transformers. I need to know should I provide a switch with 3 poles (legs) and feed each transformer for each pole (leg)? Or shall I connect the switch to a bus bar and tap the 3 switches off of the bus bar and feed the tranformers. I need to know how to feed the tranformers, that's all...hope that's better. :)

If you have a better suggestion, let me know! ;)
 
The norm is to have a main feeding a bus and a load break switch feeding each transformer. You may want to contract a company that works with this stuff for acceptance testing and cable terminations, this is specialized work. www.netaworld.org lists companies in your area that do this. There are several NETA companies in NJ.

P.S. 15kV equipment is generally refered to as Medium Voltage (To help avoid confusion in the future)
 
Lady Engineer said:
Sorry....

I have a 12.3KV primary service I am installing or designing, rather. I need to provide power to 3 buildings. There will be a transformer for each building. On the line side of the switch will be just the utility pole, but on the load side will be the 3 transformers. I need to know should I provide a switch with 3 poles (legs) and feed each transformer for each pole (leg)? Or shall I connect the switch to a bus bar and tap the 3 switches off of the bus bar and feed the tranformers. I need to know how to feed the tranformers, that's all...hope that's better. :)

If you have a better suggestion, let me know! ;)
Click to expand...

No need to say you're sorry! We are here to learn! You have the right idea and Zog and Bob seem to have the answers! In most configs I have saw they used bus bars........... but I'm just a PLC guy! "More than 4 wires I try to avoid!"
 
zog, bob, and hockey...you were all a big help. I found PMH switch made by S&C electrical which will do the job. I think I'll just get the one with 4 compartments, and feed the transformers that way. It's for the utility, so they just want a schematic.

For some reason, they won't do the design, and since it's the primary...it does not have to be NEC compliant...because it's the utility. Thanks gentlemen...make a girl feel squishy inside! ;)

Lady :)
 
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