Discuss You need scrambled brains to sort this! in the Commercial Electrical Advice area at ElectriciansForums.net

K

Knobhead

This was posted on one of the other forums I go on. Just see if you can work out this fault (it's been on a bit of a body building course).

Dear Sirs,

In our plant we have 2no.s substations no.1 substation has a main switchboard with 2no.s11/.44KV 1600KVA tx They connected to switchboard by 2no.s acbs and a bustie. No.2 substation has no tx it is supplyed by 2no.s acbs from substation 1 it has bestie. I have removed bustie nutral at substation 1 all single ph thing are fed from substation 2 bustie open with nutral. The earth abcs at no1 swichboard keep trips they feed switchboard2
Can you help pleasse

There have been a couple of threads in the last few weeks with exactly the same fault. I’ll post a drawing later but that would give the game away to quickly. You have to try and picture it from the description.

E54 and Malcolm are not allowed to answer.
 
In our plant we have 2no.s substations no.1 substation has a main switchboard with 2no.s11/.44KV 1600KVA tx They connected to switchboard by 2no.s acbs and a bustie. No.2 substation has no tx it is supplyed by 2no.s acbs from substation 1 it has bestie. I have removed bustie nutral at substation 1 all single ph thing are fed from substation 2 bustie open with nutral. The earth abcs at no1 swichboard keep trips they feed switchboard2

That is a description!!! I would try to answer but know I would just look foolish.
However for Ian from the urban dictionary: bustie - a girl who puts out
It is starting to look like a better description but I can't imagine why he removed them or what they are like when open with nutral!
 
Quote "I have removed bustie nutral at substation 1"

Does that mean there isn't a neutral being supplied to sub-station 2 where all the "single ph thing are fed from"

Meaning that the earthing is being used as a return path for all the SP loads causing the ACB's to trip???
 
Quote "I have removed bustie nutral at substation 1"

Does that mean there isn't a neutral being supplied to sub-station 2 where all the "single ph thing are fed from"

Meaning that the earthing is being used as a return path for all the SP loads causing the ACB's to trip???

Nope!

You think this board is a headache, we have these all the time! Half the fun is trying to fathom out just what the OP is on about.

PS your warm, but no coconut. You'll kick you're self when I show the drawing.
 

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