Transformer

[hhsting]

I have the following type of transformer

My questions are as follows:


1. Would rules of NEC 2017 Article 450.5 apply to this type transformer or not?

2. Would the transformer considered separately derived system or not? Should it have system bonding jumper or not?


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[hhsting]

I have the following type of transformer

My questions are as follows:


1. Would rules of NEC 2017 Article 450.5 apply to this type transformer or not?

2. Would the transformer considered separately derived system or not? Should it have system bonding jumper or not?


Sent from my iPhone using Tapatalk

Is anyone familiar with the type of transformer?


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[winnie]

Sounds like a fairly normal low voltage transformer, just with a zig-zag secondary winding rather than a more typical wye secondary.

I see no reason to think that different rules would apply to this transformer.

-Jonathan