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What is the %Z of this grounding transformer given this nameplate data ?

bdn2004

bdn2004

Electrical
Joined
Jan 27, 2007
Messages
809
Location
US
Below is the picture of the nameplate.... as you can see Z0 = 97.14 ohms per phase. Or can this be figured out from this info ?
If so what is the calculation ?

Grounding Transformer.JPG
 
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