The method is suitable for transferring (range expanded) all classes of electric energy standards (total uncertainty is 0.01%～0.1%) of AC power, current and voltage, and especially for transferring the AC power under special waveform (such as several typical waveforms specified by IEC 1036).
In this card, applied TMS320VC5409 as a peripheral processing unit and applied PCI2040 as PCI-DSP bridge , then performed a frequency and phase testing instrument of three-phase AC power by software design.
The timer B of MSP430F449 is used to produce 6 routes of sinusoidal PWM signal which can control three routes inverse transform circuit. After inverse transform and filtering,three-phase sinusoidal AC power supply can be obtained.
We used a Shinko Seiki Plasma Polymerization equipment with a bell jar reactor comprising two electrodes connected to a symmetric AC power supply of 15 kHz.
Allowing water/hydrogen or water/hydrogen/He gas mixture to flow through micro- hollow type of electrodes and applying 60 Hz AC power between the electrodes made it possible to sustain large area and atmospheric pressure discharge.
For this purpose, two kinds of power supply were compared, that is, AC power supply which has a high-frequency sinusoidal wave form, and AC pulse power supply which has modified AC pulse wave form.
The effect of wa eform and frequency of applied ac power was in estigated for each reactor.
Streamer coronas are produced with a dc-superimposed high-frequency ac power supply (10-60 kHz).