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Using Multiple Transformers to Feed One Load

Sometimes loads (e.g. signs or approach light bar) may require more power than the largest transformer we can supply (500W).

A simple fix is the use of two standard transformers in series - see following picture.

Click on picture for details.

Caution: If it is desired to have the secondary earthed, only one of the transformers should have an earthing connection. (If both are earthed, the secondary of one transformer will be shorted out.)