Metro Electronics supplies Single Phase Constant Voltage Transformer. Metro Electronics manufactures servos, industrial transformers and laboratory test equipments. Single Phase Constant Voltage Transformer has 50 cycle sine wave which is fitted with voltmeter, indicator and on /off switch. Single Phase Constant Voltage Transformer are used separated from the isolated output winding. It offers an ultimate protection for computer, micro processor based systems and industrial applications. Its primary voltage is 180V and secondary voltage is 220V. These constant voltage transformers are available in different ratings.