Transformer Losses Measuring Meter is a transformer Ratio Meter used to test the turn`s ratio of high voltage windings to low voltage windings of any transformer. Ajit Electronics Co. Supplies Transformer Losses Measuring Meter. Ajit Electronics Co. Is the manufacturer of electronics or electrical testing and measuring instruments like Transformer oil test sets, Spark tester, current injection sets, Relay test sets, Million mega ohm meters, Oil filtration plant and Transformer ratio meter. The Transformer Losses Measuring Meter can handle maximum voltage up to 750V.