SF6 environment online monitoring alarm instrument

SF6 environment online monitoring alarm instrument (Winfoss-S1P)

SF6环境在线监测报警仪又名SF6气体泄漏监测报警系统、SF6气体在线泄漏监测报警装置、SF6气体定量监测报警系统、SF6浓度监测仪、SF6气体泄漏监测装置，SF6在线检测报警仪、SF6环境在线监测装置，SF6浓度在线监测系统等。

product description

Installation is based on Chapter 8 of "DL408-1991 Electrical Safety Work Regulations (Electrical Parts of Power Plants and Substations)" and Chapter 4 of "DLT 639-1997 Safety Protection Rules for Operation, Testing and Maintenance of Sulphur Hexafluoride Electrical Equipment" Requirements and "JBT 10893-2008 High-voltage combined electrical distribution room sulfur hexafluoride environmental monitoring system" requirements. Among them, it is specially stipulated in the "Safety Work Regulations for the Electric Power Industry" (for power plants and substations) that the power distribution equipment room equipped with SF6 equipment must ensure that the concentration of SF6 gas is less than 1000ppm. Oxygen meter and SF6 gas concentration monitoring alarm and so on.

SF6 environmental online monitoring and alarm instrument (Winfoss-S1P) is specially designed for SF6 switching stations of various voltage levels in the power system, and the system monitoring accuracy is high. It is a comprehensive monitoring and alarm system that integrates the monitoring functions of SF6 concentration and oxygen content in the indoor environment of switch stations. The system has online monitoring of temperature and humidity and fan linkage control functions.

SF6 environmental online monitoring and alarm instrument is a comprehensive organic equipment system, which can be monitored on-site and dynamically monitored on the computer in the main control room; it also supports remote control of the dispatch center in the form of hard contacts with on-site remote control devices. alert. In the face of the overall design of the SF6 switch station, it is compatible with the access functions of SF6 gas density online monitoring and SF6 gas micro-water online monitoring.

The SF6 environmental online monitoring and alarm instrument is based on the RS485 (MODBUS) bus and DSP technology used in the international aerospace fuselage monitoring application, and has strong anti-interference and accurate data quantification platform. Compared with the 485 communication method in the traditional industrial control field, it has higher stability and reliability. The idea of ​​object-oriented design is realized by layered and distributed structure, and the system has convenient and flexible expansion performance, which is an upgraded product of traditional 485 communication mode. 

Winfoss-S1P meets the four functional requirements of SF6 industry safety regulations for SF6 substation maintenance management:

A. High-precision hypoxia and SF6 exceeding the standard alarm. 

B. When the environment is abnormal, the exhaust function of the fan is controlled jointly.

C. Local display and sound and light alarm prompt at the entrance of the switch room.

D. Define any time period or forced ventilation function.

Applications

The system can be used for comprehensive monitoring and control of indoor environment or closed environment in power system.

A. SF6 switch room, GIS room, SF6 laboratory and all environments where SF6 equipment is installed.

B. The system fully considers the SF6 switch station occasions of various voltage levels. The Winfoss-S1P can be used in small-scale substations with more than 10 bays or only a few bays.

Features

A. RS485 (MODBUS) bus technology: strong anti-interference, eliminate the phenomenon of network paralysis and data disorder, flexible networking mode, more convenient and concise on-site wiring.

B. DSP digital signal processing technology: 32-bit wide data processing, data sampling is more accurate.

C. All-weather online monitoring: All-weather online monitoring and control functions ensure the safety of maintenance work.

D. Multi-master communication mode: When an individual monitoring unit fails, it will not affect the normal operation of other equipment and the entire system.

E. Support hot swap: The number of monitoring units can be increased or decreased arbitrarily during system operation, and the normal operation of the system will not be terminated during maintenance or expansion of monitoring units.

F. LCD Chinese display: dynamic high-definition color LCD display, high resolution, fast refresh speed, and the interface is very comfortable to browse.

G. Special environmental applications: suitable for applications in plateau and cold environments (see environmental requirements).

H. Long-term data storage: The historical monitoring data has a large space, and the user does not delete it, even if the system is powered off for 10 years, the data will not be lost. ,

I. Flexible expansion: After the user switch unit is added, the monitor can be easily expanded and the expansion cost can be saved.

J. Simple operation: clear interface structure, simple and convenient operation. Operators can use it proficiently with simple training.

K. Screen protection: The screen is automatically protected when no one is on duty, which is environmentally friendly and energy-saving, and significantly improves the service life of the host.

L. Host software driver: The host computer software supports the import, management, analysis and printing of monitoring data; and automatic backup is convenient for further management and trend analysis in the future.

M. Function customization and expansion: The expansion interface is prepared, which can be connected to other signal and control equipment on site, and can be personalized according to user needs.

Product Features

Status monitoring

A. Monitoring of SF6 concentration and oxygen content: 24 hours a day, 365 days, real-time monitoring of SF6 concentration and oxygen content in the switching station environment, the system host and the computer in the monitoring room simultaneously display the monitoring results. 

B. On-line monitoring of temperature and humidity: 24 hours a day, 365 days, real-time monitoring and dynamic display of ambient temperature and humidity values ​​of the current switch station. 

C. Real-time monitoring of system operation status: The communication status of each monitoring unit in the system is monitored in real time, and the monitoring results are displayed simultaneously on the interface of the system host and the monitoring station. 

D. Automatic voice prompt: When the staff approaches the entrance of the switch station, the system automatically prompts the environmental safety status in Mandarin, reminding the staff whether it is safe to enter the switch room, and the volume of the voice can be adjusted. 

E. Sound and light alarm: When monitoring the concentration of SF6 exceeding the standard or lack of oxygen, the system will prompt the on-site personnel to deal with it in time with a high-frequency whistle and an alarm light. 

F. Fan running status indication: Display the current running status of the fan. If it is in a stopped state, it will display the last fan start/stop time, which is convenient for judging whether forced ventilation is required before entering the switch room.

Safely control

A. l Fan linkage control: When it is detected in real time that the SF6 concentration exceeds the standard ≥1000ppm or the oxygen deficiency is lower than 19.6%, the fan will be automatically controlled to ventilate until the SF6 and oxygen concentrations return to normal, and the fan will be automatically turned off after 10 minutes of continuous ventilation. 

B. Fan timing control: Ventilation at custom time periods (up to 24 time periods) to ensure that the switch room can be ventilated on time every day. The ventilation start/stop time can be set flexibly. It can meet the various exhaust needs of users. 

C. Remote alarm: provide hard contacts to support connection with remote devices to realize remote alarm in the main control room or dispatch center. 

Data combing

A. Monitoring data storage: abnormal environmental status data storage, monitoring historical data mass storage capacity to meet the requirements of more than 10 years of operation

B. Historical data query: the historical data of any time period can be inquired and managed in the host menu or the main control room computer respectively

C. System self-healing and self-recovery: independent and dedicated fault self-checking and self-recovery modules can perform self-booting and self-recovery when the system program fails.

D. Full touch operation function: In full touch operation mode, the system can locate and select information input according to the icon or menu position touched by the finger, which shortens the response time of the system and saves the user's waiting time; at the same time, the system operation is more convenient and the appearance Simple and beautiful.

UI

A. 10.4-inch LCD display, Chinese interface.

B. Visually and dynamically reflect the monitoring results.  

C. The monitoring results of each monitoring unit can be curvilinear.

D. System operation Click Help to enter detailed instructions.

E. The function interface is shown in the figure above.

Layered monitoring

A. On-site monitoring of switchyard

The on-site wall-mounted host is installed at the entrance of the switch station. When the system detects abnormal SF6 concentration or oxygen content at any interval in the switch station, it will give a synchronous sound and light alarm; it is easy for the staff to understand the current situation before entering the switch station. security status.

B. On-site main control room monitoring

The computer in the main control room is equipped with monitoring and driving software, which synchronously and dynamically displays the SF6 concentration and oxygen content at the on-site position of each switch interval (suitable for the long distance between the main control room and the switching station site, which is convenient for maintenance personnel to monitor and monitor the status in the main control room. control of fans, etc.).  

C. Dispatch center monitoring

It provides remote control communication hard contacts to communicate with the remote control device, realizes the remote alarm of the dispatch center, and the function is convenient and practical.

Technical parameter

The SF6 concentration online monitoring system (WINFOSS-S1) can quantitatively monitor the leakage of SF6 gas concentration, and uses a high-precision gas sensor with an accuracy of 1ppm. The detailed technical parameters of the system are as follows:

系统配置 

Service Guarantee

A. Provide on-site installation, commissioning and training guidance, and carry out on-site demonstration operations.

B. Provide detailed Chinese manual and user guide.

C. One year free warranty, lifetime spare parts support and maintenance.

D. The hotline is available 365 days a day to answer users' inquiries.