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Zig-Zag Grounding transformer

Zig-Zag Grounding transformer

Zig-Zag Grounding transformer

(OP)
can any body tell how to calculate the capacity (KVA) of a zig-zag grounding transformer ,we are using this to provide ground fault path to 33 KV delta system ,we want to use the secondary of this Tr for Aux load(33KV/415V)

RE: Zig-Zag Grounding transformer

What's the earth fault current?
Is there a neutral earthing resistor?
How long will an earth fault be allowed to stay on the system?
What KVA do you need for your auxiliaries?

Regards
Marmite

RE: Zig-Zag Grounding transformer

What marmite said; more information is needed to arrive at a good answer!

RE: Zig-Zag Grounding transformer

The zigzag configuration is only use to protect ungrounded side of power transformer. The capacities it is depend on the load that will be connect to this transformer, because with this kind you have the point of earthing and auxiliary power supply.

RE: Zig-Zag Grounding transformer

Our client mentioned there may be impedance issue with Zig-zag transformer. I don't really understand this. Can somebody here shed me some lights on me?

Thanks in advance.

RE: Zig-Zag Grounding transformer

I didn't know that Zig Zag made transformers too...  Smokin!

Mike McCann
MMC Engineering

RE: Zig-Zag Grounding transformer

Another misspent youth!! LOL.
My friends preferred Zig-Zags, just like yours!
 

Bill
--------------------
"Why not the best?"
Jimmy Carter

RE: Zig-Zag Grounding transformer

Any health and safety issue  to the operators  with Zig-zag transformer?  

RE: Zig-Zag Grounding transformer

Nope. You don't usually visit the transformer often.

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