What is a multiple spot transformer?

A multiple spot or multi-spot transformer is frequently referred to as a fixture type transformer. Multiple spot transformers are frequently used in spot welding fixtures. These AC transformers run from 20 to 200 KVA. They can be built with outputs for either one or two secondary circuits. The secondary’s will fire together with the same power and settings sent from the weld control.

Fixture type inline lugs

Multiple Spot Transformer with two Secondary’s

 Below is a schematic of an application of a multiple spot transformer in use.

Series weld sketch CD containing 2 day program Page 415

Series Weld with Multiple Spot/Fixture Type Transformer

Reference: RWMA Manual- Fourth Edition, 19
                   Roman Manufacturing Inc

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