SF6 gas density micro-water monitoring system SF6 density micro-water monitoring device

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SF6 gas density micro-water monitoring system SF6 density micro-water monitoring device

发布时间：2019-05-21 来源：ydlcb 浏览次数：46次

WINFOSS-S6 type SF6 density micro-water online monitoring system is Wevers company through the introduction of high-precision online humidity sensing technology, with a high starting point of quality management standards, on the basis of the original density monitoring, through the cooperation with Siemens, ABB, Pingkai, Shenkai, Xikai and other high-voltage switch factory related technologies, launched a set of sensing detection technology. Digital processing technology, data communication technology, database technology and other related power system information management technology in one SF6 gas density and micro-water online monitoring system. At the heart of it is an approach based on DRYCAP® Based on the detection technology, the micro-water measurement and analysis algorithm is obtained by the technical data of Weavers' technical staff on the relationship between the normal change of impurity content in SF6 gas and the distribution of micro-water content over the years. It ensures that the trend of deterioration of the internal gas quality can be more accurately reflected by the change of micro-water content. It provides numerical basis for users to make decisions scientifically.

Function introduction

1, switch body SF6 gas density online monitoring

The SF6 gas pressure is monitored in real time based on the single gas chamber isolated by the basin insulator. The current standard pressure value (20℃ pressure value) is obtained by calculating the mathematical model embedded in the on-site host or the upper software. The monitoring server displays the standard pressure value of each gas chamber respectively.

2. Alarm operation and prompt after gas leakage

When the detected density value decreases to the alarm threshold due to SF6 leakage, an alarm is generated on the monitoring platform. The monitoring unit is equipped with alarm relay, which outputs alarm status signal for users to choose whether to access the secondary relay protection system.

3. Switch locking operation and prompt after gas leakage

When the standard voltage value is reduced to the set locking threshold due to leakage, the standard voltage value is dynamically prompted in the monitor interface, the monitoring unit starts the locking relay, and outputs the locking state signal for the user to choose whether to access the secondary relay protection system.

4, switch the SF6 gas moisture content in the body online detection and display

Monitor the moisture content of each independent gas room in real time, display the current moisture content synchronously in the field host and the computer in the main control room, and give an alarm on the monitoring host when the set value is exceeded.

5, the alarm operation and warning of excessive water

When the water level rises to the alarm threshold set, the alarm relay is started and the alarm switch signal is output. For relay protection alarm prompt, or remote alarm output.

6. Historical monitoring data is stored in query

The monitoring server automatically stores and backs up all historical monitoring data. Remote clients dynamically invoke the server to synchronize data, and support data saving in case of power failure. In addition, backup hardware modules and programs automatically back up all historical monitoring data to ensure integrity. In the field server or remote client computer, enter the historical data query interface at any time through the menu, query the equipment name, the density and moisture data of each air chamber, the current data and other records in any time period, draw a trend chart, and intuitively observe the change trend of technical indicators. Provide basis for human analysis and data filing.

7. Density change curve and moisture content change curve of SF6 after leakage

The dynamic curves of the host computer or the upper computer software show the recent changes of SF6 gas density and water content in each gas chamber.

8. Trend diagnosis and report output

The monitoring server intelligently analyzes and processes the monitoring data, monitors the operating trend of the air chamber, and analyzes and diagnoses the health status of the equipment to predict potential faults. And output trend diagnosis report and maintenance plan recommendations.

9, remote dispatch center software platform monitoring function

Support the remote dispatching center to configure SF6 density micro-water monitoring software, maintenance personnel on the computer monitoring platform to each switch station SF6 switch gas chamber density and micro-water data comprehensive monitoring and management. Achieve comprehensive monitoring of density and micro-water monitoring data in operation at all SF6 switch stations in the jurisdiction.

10, modular design, can be free to increase or decrease the monitoring unit function parts

According to the needs of users, the number of monitoring units can be increased or decreased at any time. The monitoring unit can be a density micro-water combination monitoring unit or a single density monitoring unit.

11, the system self-check self-healing function

An independent self-check module is designed on the internal hardware structure, and the fault code of the sub-region is automatically given when an anomaly is detected in the sub-region module. When there is an error in the software program, it automatically switches to the standby program and controls the import of the original program to ensure the stable operation of the system.

12. Authority management and security prevention management

Set the user's security management rights for the system, including: rights management, password management, personnel registration, equipment operation, alarm processing records, etc.

13, software online calibration

The user can conduct real-time calibration according to the pressure, dew point or temperature standard source test value in the field through the upper software, which can greatly improve the system maintenance and use efficiency.

14. Output diagnostic report

Users can input the air replenishment time of the equipment and the density value after air replenishment, and through the trend diagnosis report function of the upper software, output the operating condition evaluation report of the current equipment, predict and diagnose the operating trend, and provide users with maintenance plans and suggestions.