DAC-WT-25/50 is a testing power supply for Withstand Voltage and Partial Discharge measurements, witch features corona-free and variable-frequency design.
The partial discharge at a rated voltage is restrained less than 1pC, and the output frequency can be set from 46Hz to 1kHz (10kHz as optional design). The adoption of a linear amplifier enables the extremely small distortion of output waves, and the precision voltage can be applied to specimens.