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JC-OM400L Tunnel Cable Partial Discharge Monitoring System
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JC-OM400L Tunnel Cable Partial Discharge Monitoring System

The JC-OM400D cable partial discharge online monitoring system adopts a modular design scheme. The partial discharge pulse current signal at the cable body and the joint is coupled through the high-frequency pulse current sensor installed on the ground wire of the cable joint; the coupled pulse current The signal is transmitted to the front-end monitoring collector through the coaxial cable, and the analog signal is amplified, filtered, and converted into a digital signal, and then transmitted to the back-end server through the optical fiber. The background server performs classification, identification, analysis, and calculation on the signals of all sensors, and writes the discharge information data obtained through calculation into the database, and displays the monitoring results on the software of the monitoring system.
Free telephone number:0519-85851518
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The JC-OM400D cable partial discharge online monitoring system adopts a modular design scheme. The partial discharge pulse current signal at the cable body and the joint is coupled through the high-frequency pulse current sensor installed on the ground wire of the cable joint; the coupled pulse current The signal is transmitted to the front-end monitoring collector through the coaxial cable, and the analog signal is amplified, filtered, and converted into a digital signal, and then transmitted to the back-end server through the optical fiber. The background server performs classification, identification, analysis, and calculation on the signals of all sensors, and writes the discharge information data obtained through calculation into the database, and displays the monitoring results on the software of the monitoring system.

The system includes high-frequency pulse current sensors, online monitors (monitoring collectors), on-site monitoring cabinets, high-performance industrial computers (servers), and expert analysis system software and control units.

Project parameters:

Power supply: AC 220V; DC 24V; solar power

Communication mode: use high-frequency cable between the sensor and the server can use optical fiber, high-frequency cable, 4G wireless

Minimum measured discharge amplitude: 1mV (10PC on site)

The frequency range of pulse current sensor 100kHz-30MHz

Time resolution of discharge pulse: 10μs

Phase resolution: 0.18°

Positioning error: 3 meters

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