SF6 micro water density online monitoring

System Introduction

This product realizes real-time monitoring, remote transmission, fault warning, backend display, and trend analysis of SF6 gas micro water pressure density data, providing reliable information and important support for condition based maintenance and smart substation construction. This system is suitable for online monitoring of SF6 gas micro water and pressure density of high-voltage switches and combination electrical equipment. The equipment has high stability and reliability, reliable power supply, and strong resistance to strong electromagnetic interference, effectively improving the safety and service life of equipment operation.

Features

The device can collect real-time data on SF6 gas pressure, temperature, density, and micro water (optional), and process and upload it to the backend system;
◎ High stability sensors are used, with good output linearity and high accuracy. The detection module comes with temperature compensation to ensure the reliability and stability of the output value;
The external structure of the transmitter is suitable for measurement in high-frequency electric field interference environments. The signal and digital parts are integrated on-site to reduce interference coupling and improve the long-term stability and reliability of the detection module circuit;
The IED device adopts high-precision reference compensation and high-precision custom filtering algorithms to filter out interference and ensure stable and reliable data;
The dust and water resistance level of sensors and accessories reaches IP65.

Main technical parameters

System Composition

SF6 pressure density micro water online monitoring mainly consists of sensors (including three-way valves), hubs, and SF6 monitoring IEDs; Each sensor is first connected to the hub via RS485, and then connected to the SF6 monitoring IED through the hub; SF6 monitoring IEDs are uploaded to the backend monitoring system via IEC61850. As shown in the following figure: