| 摘要 |
PURPOSE:To detect a waveform state easily and accurately by displaying the DC output waveform of a current control type rectifier with corresponding figures. CONSTITUTION:The max. no-load DC voltage when the phase control angle of a phase control type rectifier is 0 deg. is made 100% and the 0V DC output voltage of 180 deg. phase control angle is made 0%. With these voltages as seference, the voltages between both are divided and the corresponding figures of % are assigned between the max. indicating position 2 and zero indicating position 3 of a DC voltmeter 1. Then, these figures correspond to the DC output waveforms even when the max. no-load DC voltage value differs, and the state of the DC output waveform of the phase control type rectifier in the stage of plating, etc. is detected easily and accurately. |
