Performance of Micro Water Density Online Monitoring System

1、 Function Overview

SF6The micro water density online monitoring device adopts high-performance micro water sensors and density sensors with temperature compensation function. The collected data can be connected to the substation comprehensive automation system and remote monitoring center through RS-485 or CAN bus, realizing long-term status monitoring of SF6 circuit breakers without emitting SF6 gas, ensuring the safe and stable operation of power equipment, and enabling status maintenance.

SF6The micro water density online monitoring device can operate on the internet for a long time and automatically upload alarm or locking signals according to pre-set threshold values, or directly activate the alarm and locking devices.

2、 Main functions

（1）Online monitoringSF6 Gas humidity, density, and temperature

（2）Online monitoring of gas leaks and leak alarms

（3）Low voltage alarm and locking device can be automatically activated according to preset or user specified values

（4）Complete isolationRS-485/CANBus communication interface makes the system more reliable

（5）Automatically draw trend charts of state changes through backend software

（6）Large screen LCD display shows real-time data on-site, with screen protection and voice control display functions

（7）Users can define and set alarm and lockout threshold values

（8）Fully sealed, anti-interference, suitable for outdoor and low-temperature environments

3、 Main features

（1）High precision and high reliability

The transmitter adopts imported high stability sensors, which have been corrected and compensated by the internal circuit of the transmitter, resulting in good output linearity and high accuracy; The external structure of the transmitter is also more suitable for measurement in high-frequency electric field environments. It is integrated with the circuit processing part to reduce interference coupling and improve the stability and reliability of the circuit's long-term operation.

（2）Realize online monitoring and status maintenance

This monitor can operate for a long time with a hanging line. Its equipped RS-485/CAN communication interface can upload monitoring data in real time to the monitoring center. When the measured gas index exceeds the standard, the monitor will automatically upload an alarm or lockout signal to the remote monitoring center according to the pre-set threshold, or directly activate the alarm or lockout device. The upper computer software can sample and store monitoring data according to the set time and frequency, and automatically plot the above data into a trend chart as needed for observation and analysis.

Performance of Micro Water Density Online Monitoring System