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External PD Sensor
Ultra-high frequency (UHF) partial discharge detection technology is used to monitor partial discharge phenomena in high-voltage electrical equipment. When partial discharge occurs in the insulation of electrical equipment, due to its high insulation strength and breakdown field strength, a steep pulse current is generated, which excites electromagnetic waves with frequencies as high as several GHz. UHF partial discharge detection is based on this principle, using UHF sensors to receive these ultra-high frequency electromagnetic wave signals, thereby obtaining relevant information about partial discharge.
