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All along, most of the relay protection device's own power supply of work and operation circuits requires substation or distribution room to provide AC or DC power supply. This paper introduces hardware and software design of self-powered microcomputer relay protection device. The energy is obtained directly from the power line by some tailor-made iron core current transformer (CT). The signal, output...
At present, the vast majority of relay protection devices depends on a reliable on-site power supply to work. Its power supply of work and operation circuits require substation or distribution room to provide AC or DC power supply. This paper introduces a design of self-supply power source applied in digital relay. The energy is obtained directly from the power line by some tailor-made iron core current...
The main method of anti-condensing in switchgear is fixing the temperature and humidity controllers in order to wreck the formation of condensation conditions to avoid the electrical equipment's insulating fault, while humidity sensor is key detection component for those, which must has features of anti-jamming, anti-electrostatic, anti-pollution, wide humidity range. As basic humidity component,...
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