Hook up 480 volt transformer

Chestnut holds a bachelor's degree in electrical engineering from the University of Mississippi and a Master of Business Administration from University of Phoenix How to Convert mW to mA.

480V to 240V Transformer

How to Convert Single Phase to 3 Phase. How to Determine Current Capacity of Transformers.

How do you wire for 480V - 120/240V on 1 phase S3 type transformer (e.g. EE37S3H)?

Depending on which text editor you're pasting into, you might have to add the italics to the site name. How to Convert 12 Volt Alternator to Volts.

Grounding a Transformer

Depends on what you have coming in and what you are looking for coming out.. Last edited by lowman; at It's a simple connection and it's written right there in the picture on your first post on the panel cover. Please don't take this the wrong way.


Your profile says you are a jman - is this true? If you aren't sure at this point, get someone to help you before you even think of energizing.

Last edited by wildleg; at You're correct, he's mistaken. You need to have continuity through any winding.

If you don't connect H2-H3 you won't have a complete V circuit. You currently have 0 posts.

Schneider Electric USA Website

Always wear your gloves. Originally Posted by lowman. Never worked on the small encapsulated x-formers so the diagram and what I saw inside as for has the color codes of the wire's had me a little confused. But they are not that different than those other x-former's.

how to read this V single phase transformer wiring diagram

Originally Posted by jrannis. I own an electrical company from Canada. This is a simple connection. In your original post, I am understanding you want the to connection: Your low voltage conductors vac would connect to X1 and X4.

If your supply voltage is vac, ground the X4 terminal. If your supply voltage is vac, ground the H4 terminal. It does not matter whether your stepping voltage up or down; the connections are the same.

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  • how to read this 480V single phase transformer wiring diagram?

These dry-type transformers can indeed be used to step voltage up or down. While your only connecting a single-phase unit, this is especially true of three-phase transformers. As was commented in earlier posts, a white conductor is rarely found in vac circuits, if ever. In Alberta Canada, we use orange, brown and yellow for phase A, B and C respectively on vac 3-phase systems wye or delta , and the color white for it's neutral on vac circuits.