Sulfur hexafluoride gas monitoring and alarm device- SF6在线监测系统_SF6检漏仪_SF6传感器_SF6密度继电器

韦弗斯新闻动态

最新动态

SF6安全保障专家

专注于SF6气体检测的专业化

135 85763546

Sulfur hexafluoride gas monitoring and alarm device

发布时间：2015-09-11 来源：ydlcb 浏览次数：49次

SF6 Environmental Monitoring and Alarm Device (Winfoss-S1P)

SF6 environmental monitoring alarm device is also known as SF6 gas leak monitoring alarm system, SF6 gas leak monitoring alarm device, SF6 gas quantitative monitoring alarm system, SF6 concentration monitor, SF6 gas leak monitoring device, SF6 online detection and alarm instrument, SF6 environmental online monitoring system, SF6 concentration online monitoring system, etc.

summarize

In accordance with the requirements of Chapter 8 of the "DL408-1991 Electrical Safety Working Regulations (Electrical Parts of Power Plants and substations)", Chapter 4 of the "DLT 639-1997 sulfur hexafluoride Electrical Equipment Operation, testing and maintenance personnel Safety protection Rules" and "JBT 10893-2008 Environmental monitoring system of sulfur hexafluoride in high voltage combined electrical distribution room. Among them, in the "Electrical industry safety Work Regulations" (power plant and substation part), it is required that the distribution unit room equipped with SF6 equipment must ensure that the SF6 gas concentration is less than 1000ppm, and in addition to the installation of strong ventilation devices, it must also install an alarm oxygen meter and SF6 gas concentration monitoring and alarm meter.

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

The SF6 environmental monitoring and alarm device is a comprehensive organic equipment system, which can not only monitor on the spot, but also monitor dynamically on the computer in the main control room. It also supports the remote alarm of the dispatch center in the form of hard contact with the field remote device. It is also designed for SF6 switch station and compatible with SF6 gas density online monitoring and SF6 gas micro-water online monitoring.

SF6 environmental monitoring alarm device introduced in the international space fuselage monitoring application of RS485(MODBUS) bus and DSP technology, with strong anti-interference and accurate data quantization platform. Compared with the traditional industrial control field 485 communication mode has higher stability and reliability. With hierarchical and distributed structure to realize the idea of object-oriented design, the system has convenient and flexible expansion performance, and is an upgrade product of traditional 485 communication mode.

Cabinet frame type and GIS entrance wall mounted two options, imported original sensor, long life, safe and reliable!

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

l High-precision hypoxia and SF6 excessive alarm.

l The fan exhaust function when the environment is abnormal.

l Switch room entrance local display and sound and light alarm warning.

l Define any time period or forced ventilation function.

Apply

The system can be used for the comprehensive monitoring and control of high-voltage 10KV, 35KV switch room ring network cabinet room, 110KV, 220KV, 500KV and other voltage levels in the power system.

l SF6 switch room.

l GIS Room.

l SF6 Laboratory.

l All environments where SF6 devices are installed.

l The system fully considers various voltage levels of SF6 switching station occasions. Winfoss-S1P can be used in small substations with more than 10 intervals or only a few intervals.

peculiarity

l RS485(MODBUS) bus technology: strong anti-interference, to eliminate the phenomenon of network paralysis and data disorder, flexible networking mode, field wiring is more convenient and simple.

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

All-weather online monitoring: all-weather online monitoring and control function to ensure the safety of maintenance work.

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

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

l LCD Chinese display: dynamic high-definition color LCD display, high resolution, fast refresh speed, interface browsing is very comfortable.

Special environmental applications: suitable for high altitude and cold environment applications (see environmental requirements).

l Long-term data storage: The storage space of historical monitoring data is large. Users do not delete the historical monitoring data. Even if the system is powered off, data will not be lost for 10 years.

l Flexible expansion: After the user switch set is increased, the monitor can be easily expanded and the expansion cost can be saved.

Simple operation: the interface structure is clear, the operation is simple and convenient. Operators need only simple training to be skilled in use.

l Screen protection: no one on duty screen automatic protection function, environmental protection and energy saving, significantly improve the service life of the host.

Host software driver: host computer software support, to achieve monitoring data import, management, analysis and printing; Automatic backup for further management and trend analysis.

Function customization and expansion: Prepare expansion interface, can connect to other signal and control equipment on site, personalized according to user needs.

Feature

Status monitoring

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

l Temperature and humidity online monitoring: 365 days 24 hours real-time monitoring and dynamic display of the current switch station ambient temperature and humidity values.

Real-time monitoring of system operating status: real-time monitoring of the communication status of each monitoring unit in the system, and synchronous display of monitoring results on the interface of the system host and monitoring station.

l Automatic voice prompt: When the staff is near the entrance of the switch station, the system automatically prompts the environment safety status in Mandarin to remind the staff whether they can safely enter the switch room, and the voice volume is adjustable.

Sound and light alarm: When the SF6 concentration exceeds the standard or hypoxia is detected, the system prompts the on-site personnel to deal with it in time with high frequency whistle and warning light alarm.

Fan running status indicator: shows the current fan running status, if in the stopped state, it shows the latest fan start/stop time, which is convenient to judge whether forced ventilation is required before entering the switch room.

Safety control

Fan linkage control: When the SF6 concentration is detected in real time to exceed 1000ppm or hypoxia is less than 19.6%, the fan ventilation will be automatically controlled until SF6 and oxygen concentration return to normal, and the fan will be automatically shut down after continuous ventilation for 10 minutes.

l Fan timing control: customized period ventilation (up to 24 periods), to ensure that the switch room can be ventilated on time every day. Ventilation start/stop time can be set flexibly. It can meet the various exhaust requirements of users.

Remote alarm: Provide the form of hard contact to support the connection with the remote device to achieve remote alarm in the main control room or dispatch center.

Data processing

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

Historical data query: Historical data of any time period can be queried and managed in the host menu or the computer in the main control room

l System self-healing, self-recovery: independent, dedicated fault self-detection, self-healing module in the system program error can be self-guided, self-recovery.

Full touch operation function: full touch operation mode, the system can locate the selection information input according to the finger touch icon or menu position, which shortens the reaction time of the system and saves the user waiting time; At the same time, the system is more convenient to operate, and the appearance is simple and beautiful.

reveal

l 10.4-inch LCD, Chinese interface.

l Visually and dynamically reflect monitoring results.

l Operation and use only need to master two steps, touch operation is simple and convenient.

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

l The functional interface is shown in the figure above.

Hierarchical monitoring

l Switch station on-site monitoring

The on-site wall-mounted main machine is installed at the entrance of the switch station. When the system detects any abnormal SF6 concentration or oxygen content at any interval in the switch station, the alarm will be synchronized by sound and light. It is easy for staff to understand the current safety status before entering the switch station.

l On-site main control room monitoring

The computer in the master control room is equipped with monitoring driver software, which synchronously and dynamically displays the SF6 concentration and oxygen content of the local position of each switch interval (suitable for the remote distance between the master control room and the switch station site, which is convenient for maintenance personnel to monitor the status and control the fan and other equipment in the master control room).

l Dispatch center monitoring

The remote communication device can communicate with the remote communication device by hard contact point to realize the remote alarm of the dispatching center. The function is convenient and practical.

Technical parameter

SF6 environmental monitoring alarm device can quantitatively monitor the leakage of SF6 gas concentration, using non-spectral infrared spectral absorption (NDIR) sensor, its accuracy can reach 1ppm, the detailed technical parameters of the system are as follows:

1.SF6 and oxygen detection index
1.1	SF6 Measuring range	1 ~ 3000ppmv	Detection accuracy < ±25ppm+2%
1.2	SF6 Out-of-limit alarm point	1000ppmv	The value ranges from 100 to 1000
1.3	Oxygen measuring range	1～25%	Detection accuracy < 1%FS
1.4	Hypoxia alarm point	18.0%	Can be defined by 15.0-18.5%
1.5	Fan starting point	19.6%	Can be set by the user
1.6	Alarm response speed	Priority interrupt, response speed ≤50ms
1.7	Alarm relay capacity	220V AC/7A	Remote alarm hard contact
2. Temperature and humidity detection indicators
2.1	Temperature detection range	-30 ~ +70℃	Detection accuracy ±1℃
2.2	Humidity detection range	1-99%RH	Detection accuracy ±1%RH
3. Comprehensive technical indicators
3.1	Working power supply	AC 165-260V/50Hz
3.2	Fan control relay capacity	220V AC/10A
3.3	Capacity of fan output contactor	380V AC/60A
3.4	Communication cable	RVVP2 * 0.3 (FTP)	European EN-55022 standard shielded cable
3.5	Monitor host display	10.4 inch large screen Chinese color LCD	NEC LCD touch screen
3.6	Monitoring unit and monitoring host installation method	wall-mounted
3.7	Historical data storage time	Alarm value 10 years; Five years is normal
3.8	Communication interface	1 CAN bus, 1 485 bus
3.9	Electric strength	> 2000V	Housing and power supply
3.10	Driving ability	120 monitoring units
3.11	Communication distance	10000m
3.12	Fan starting condition	1) Manual coercion; 2) Excessive SF6 concentration or oxygen; 3) User-defined timing period; 4) Sub-regional control: 3

Use environment

Serial number	entry	argument
1	Working environment	indoor
2	Seismic cracking	Lv.8. Dynamic peak acceleration: 0.25g
3	Atmospheric pressure	85Kpa-106Kpa
4	altitude	≤5000 m
5	Operating temperature	-30℃ - +70℃
6	Storage temperature	-50℃ - +99℃
7	humidity	≤95%RH

System configuration

Serial number	name	Model number	intro
1	SF6 integrated online monitoring system software	Winfoss-S1P V3.0	Jointly developed by Chinese and Swiss experts
2	SF6 concentration monitoring host	WFS-S1P-HO	Winfoss-S1P field monitoring host adopts wall-mounted structure and is designed with distributed CAN bus technology. The networking mode is flexible, beautiful appearance, easy operation, and provides 485 communication interface to support any terminal device for 485 communication.
3	SF6 and O2 monitoring units	WFS-S1-GP-SO	Using the original imported dual beam non-spectral infrared (NDIR) special SF6 sensor, the company's professional design of long life and anti-false alarm solution, combined with DSP (digital signal processing) technology, fully ensure the accuracy and stability of the system monitoring, carefully and dynamically monitor the leakage of SF6 switch changes.
4	Temperature and humidity monitoring unit	WFS-S1-TH	Adopt high precision temperature and humidity sensor, small structure, beautiful appearance, high precision.
5	Fan controller	WFS-S1-FC	The opening and closing of the fan can be controlled without changing the original fan circuit.