The Megger 550030 auxiliary transformer extends the ratio range of a Megger 550005B single-phase hand-cranked transformer turns ratio (TTR) test set (sold separately). The transformer extends the range of the TTR to 329.99:1 and includes all cords needed to connect it to the 550005B. The 550030 is used with the 550005B to test single-phase power, potential, and current transformers by electricians and electrical contractors.

Auxiliary Transformer

An auxiliary transformer extends the ratio range of single-phase models to 329.99:1. Turns ratio is 100:1 and 200:1, and is accurate to within +/- 0.1%.

The auxiliary transformer includes all the necessary cables for connection to the TTR set and the transformer under test.