Prefabricated 35kV SVG cabinet SF6 leakage monitoring device

Prefabricated 35kV SVG cabinet SF6 leakage monitoring deviceIt consists of one host, one display terminal, several SF6 leakage concentration and oxygen content sensors, temperature and humidity sensors (the specific number depends on the actual situation), sound and light alarm, infrared detector, and fan controller;

The SF6 leakage concentration and oxygen content sensors are installed in the front and rear chambers of the SF6 circuit breaker to monitor the SF6 gas concentration and oxygen concentration of the circuit breaker in real-time online. The online monitoring system consists of an analysis module, a sampling module, an on-site host, and a remote monitoring background. It continuously collects, analyzes, and stores signals from the SF6 gas concentration and oxygen concentration sensors and temperature and humidity sensors, converts them into MODBUS protocol, and transmits them to the background control room to analyze the SF6 gas concentration, oxygen concentration, and environmental temperature and humidity signals at each measurement point. When the SF6 gas concentration or oxygen content exceeds the standard and is abnormal, the ventilation system should be automatically turned on for exhaust, and an alarm should be issued. Dry contacts and communication alarm outputs should be provided for use by the monitoring background. The device should adopt maintenance free infrared human body sensors with support for infrared human body monitoring and voice prompts.

Prefabricated 35kV SVG cabinet SF6 leakage monitoring deviceCommon configurations:One SF6 gas leakage monitoring host is installed at the main entrance of the distribution room (prefabricated cabin), and one terminal display is installed at the other door. Two temperature and humidity sensors and one intelligent fan controller are equipped. Each door is equipped with one human infrared movement detector, one sound and light alarm, and a fan start stop button; Install one SF6 and O2 gas sensor in each of the front and rear chambers of the SF6 circuit breaker.