ACME T-2-79740-S Transformer

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shaw0486

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baltimore
I am installing the above transformer. In the past I have never installed primary or secondary projection or installed a primary disconnect on 1000KA single phase transformer. Everything I am reading in the NEC is telling me I need to installed a primary disconnect and install an inline 10A fuse to protect this. Am I missing something?
 
I am installing the above transformer. In the past I have never installed primary or secondary projection or installed a primary disconnect on 1000KA single phase transformer. Everything I am reading in the NEC is telling me I need to installed a primary disconnect and install an inline 10A fuse to protect this. Am I missing something?

you probably meant 1 kVA, not 1000 KA.

you will need some form of primary protection no matter what.

the rating of the OCPD will depend on the input voltage. According to the catalog it is 120/208/240/277 PRIMARY VOLTS –– 120/240 SECONDARY VOLTS.

If you are trying to go to 240/120 on the secondary you will also need secondary protection.

Just what you can live with will depend on exactly what you want to do.

You will need a disconnect but that can probably be the feeder CB, which might also serve as the primary OCPD of it is sized right.
 
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