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Old 02-02-2018, 10:52 AM   #1
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Default Transformer - Backfeeding

Is it possible that a transformer work in forward and reverse simultaneously?
I have 4 transformers. Suppose I provide 3.2MW through a secondary TAP in at one of the transformers. In case my load.connected the same transformer for any reason reduce to zero. My 3.2MW is supposed to flow backwards to the 11KV end and then flow through other transformers. It is possible? What can be the complications?
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Old 02-02-2018, 11:07 AM   #2
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If your load was reduced to zero, it would become a conductor.
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Old 02-02-2018, 11:09 AM   #3
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Lemme rephrase. If the load is disconnected
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Old 02-02-2018, 01:15 PM   #4
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Quote:
Originally Posted by Muneeb View Post
Is it possible that a transformer work in forward and reverse simultaneously?
I have 4 transformers. Suppose I provide 3.2MW through a secondary TAP in at one of the transformers. In case my load.connected the same transformer for any reason reduce to zero. My 3.2MW is supposed to flow backwards to the 11KV end and then flow through other transformers. It is possible? What can be the complications?
I would think slight vaiations in impedance would throw the transformers out of phase with each other.

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Old 02-02-2018, 01:31 PM   #5
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I assume you mean you lose the primary source you want to feed through the secondary to pick up the three other transformers. But depending on the type of transformer wye/wye or delta/wye there could be some issues MAYBE.
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Old 02-02-2018, 02:01 PM   #6
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What you're describing is known as network analysis... in the transmission// transformer world.

It's a totally different art than field wiring -- which is what this site is all about.

It is EXTREMELY complex.

You want a site that's dedicated to EE issues.
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Old 02-02-2018, 06:59 PM   #7
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Quote:
Originally Posted by telsa View Post
What you're describing is known as network analysis... in the transmission// transformer world.

It's a totally different art than field wiring -- which is what this site is all about.

It is EXTREMELY complex.

You want a site that's dedicated to EE issues.
I agree. It's possible, but very complex.

Are you and Electrical Engineer? Because ANYTHING involving Medium Voltage should NOT be undertaken by anyone who is unfamiliar with the myriad of issues involved, and the fact that you had to ask the question in the first place indicates you are immediately disqualified. Turn this over to someone with experience.
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Old 02-02-2018, 07:01 PM   #8
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Whilst it may be possible for a back EMF pulse to get thru
I don't think any continuous flow would
i can only go one way at any one time.
both ways continuous is not possible.

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Old 02-03-2018, 08:10 AM   #9
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Yes I am an electrical engineer. Just a thought come to mind. I know it would be very tough. But I was wondering that I might be able to pull this off.
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Old 02-03-2018, 08:42 AM   #10
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I say go for it.

Be sure to post pics.
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