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In this paper, system design and simulation to develop a novel wide-band (WB) measurement system for ac partial discharge (PD) pulse current signals are introduced. The acquisition unit of the measurement system contains four channels, one used as synchronization and the three WB for PD measurement with adjustable sampling rate up to 1 GS/s and bandwidth of 10 kHz ∼ 300 MHz, which record the pulses...
To reduce the manpower in grounding grids corrosion diagnosis, an automatic acquisition and test system is proposed, which consists of four parts, such as, the host computer, the intelligential DC current source, the intelligential digital voltage meter and the intelligential switching device. The steps to produce the complete test scheme is suggested, with the help of which, the DC current excitation...
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