Based on the combined detection principle of transient earth voltage and ultrasonic waves, it is suitable for partial discharge monitoring and localization of enclosed equipment such as GIS and transformers. The sensor frequency band covers 10kHz–1.5MHz, can penetrate metal enclosures, and has strong resistance to low-frequency electromagnetic interference.
Measurement range 0.1pC–100nC, resolution 0.1pC; sampling rate 100MS/s, bandwidth 200MHz; built-in adjustable gain amplifier (0–60dB), suitable for discharge signals of different intensities. Power supply AC 220V±10%, power consumption ≤50W.
Operating temperature -10℃–50℃, relative humidity ≤85%, protection rating IP20 (indoor environment). Cooling method is forced air cooling, with front air intake and rear exhaust; insulation class F, with a grounding bolt at the bottom of the enclosure. Dimensions 430×177×500mm, the cabinet terminal is equipped with a multi-function display instrument to monitor electrical parameter data.
Equipped with emergency stop function: manual one-key forced unloading, cannot load in the emergency stop locked state. Temperature protection: when the load temperature exceeds the safety threshold, it automatically unloads and alarms. Monitors the current and voltage parameters of the test circuit to facilitate operating status assessment.
Suitable for factory testing, handover acceptance, and in-service partial discharge monitoring of GIS combined electrical apparatus, power transformers, switchgear and other equipment, providing a basis for design selection and status assessment.
