The digital portion may include a plurality of latch devices (361-364), and the analog portion may include a plurality of memory cells (321) and a plurality of selector devices (325).
And the excitation voltage and output were also fed through the selector switch to the digital voltmeter.
其激励电压和输出也通过选择开关接到数字电压表上。
3
A faulty feeder selector based on traveling wave theory and IEC61850 standard is developed for the single-phase grounding fault of digital substation in non-solid grounding power system.