This product is a new type of monitor developed and designed by our company on the basis of the original JCQ-3A10/800 D-type arrester online monitor. It adds electro-optical conversion, photoelectric isolation, photoelectric conversion to the traditional current monitoring circuit, and adds 485 communication. The interface realizes long-distance isolation transmission. Therefore, this product not only has the traditional monitor current monitoring display and discharge times display functions, but also can be connected to the display terminal through the bus to achieve the purpose of long-distance monitoring of leakage current, resistive current, operation times and operation time, which is convenient for users to timely Observe the operation of the arrester. It has the counting and leakage current indication functions of traditional monitors, and adds the signal remote transmission function using the RS-485 interface modbus communication protocol. Meet outdoor operation requirements.
The RS-485 interface data remote transmission module can be built in the arrester monitor circuit, and transmit the real-time leakage current data, resistive current data, recorded discharge action times and time to the upper monitoring device. Remotely monitor the operating parameters of the arrester and realize the digitization of the monitoring system of the substation. Completed the intelligent design of on-line monitoring of arrester operating conditions for unattended substations.
The maximum transmission distance can reach 1000 meters. After the actual operation of the grid, its convenience and reliability are better than the current pointer leakage meter monitoring device, which meets the actual monitoring needs. After the application, the history of manual inspection records will be ended, and the online real-time monitoring of the arrester leakage current from the control room will be realized. It is used for online monitoring of metal zinc oxide arresters for power transmission and substation. It is used for online monitoring of metal zinc oxide arresters for power transmission and substation. The shell of this product is made of high-quality die-casting aluminum shell, and the outer surface has good anti-corrosion after spraying plastic treatment; the sealing performance is better than that of the stainless steel shell, and it is not affected by the external environment. The internal components have good anti-aging properties and can be used for long-term operation in the power system.

1. No voltage signal required: high-speed sampling, waveform analysis using FFT algorithm. Using the harmonic analysis method to calculate the resistive current of the arrester, it is not necessary to collect the voltage signal from the PT, thereby reducing the system complexity and engineering quantity;
2. Passive working mode: use the leakage current of the arrester to obtain energy without laying cables;
3. Wireless transmission: The communication adopts the national grid standard low-power communication module. Comply with the ubiquitous power Internet of things construction specification, no need to lay communication cables;
4. Provide an application APP for online monitoring of arresters. If the substation is deployed with a ubiquitous power Internet of Things access node, it can be remotely deployed and configured through the provincial company Internet of Things platform;
5. In line with the information security requirements of the State Grid, it can quickly access the provincial company's Internet of Things platform and the power transmission and transformation online monitoring system;
6. High-precision active zero-flux through-core transformer is adopted, and the magnification is automatically selected according to the measured current to achieve high-precision measurement;
7. Adopt dynamic phasor compensation algorithm to realize high-precision measurement signal analysis;
8 Adopt digital filtering algorithm to eliminate the "zero drift problem" caused by analog filters;
9. Easy installation and flexible configuration, the main equipment can be implemented without power failure.
10. During installation, the inclination angle between the plane where the monitor panel is located and the horizontal plane should be less than 85°, so as not to affect the observation due to accumulated water. Fix the metal shell base on the metal bracket with screws, and ground it through a grounding bus (the monitor base can be used as a grounding bus), and the other end is connected to the electrode through the terminal bolt on the top of the insulator, and is connected to the low voltage of the arrester with a wire (or aluminum strip). The terminal, the wiring wire or the aluminum bar itself should be fixed well, and the wiring bolts of the monitor should not be overstressed, so as not to damage the product seal and cause damage to the product.

Xi'an Hengruifeng Electric Co., Ltd. is located in Building 3, No. 2296, Keyuan 4th Road, Fengdong New Town, Xixian New District, Shaanxi Province. It is a high-tech enterprise integrating scientific research, development, production and sales. The company was registered and established in 2012 with a registered capital of 11 million yuan. It mainly produces professional manufacturers of SF6 density online monitoring, arrester online monitoring, oil pressure online monitoring, intelligent environmental monitoring system, environmental dehumidification, and SF6 valve manifold series products. Products are widely used in high and medium voltage switches, electric power industry, and power ubiquitous IoT intelligent power station renovation projects.
Our company has more than 2,300 square meters of modern workshops, a group of high-precision machining equipment and skilled operators, and the processing capacity is at the leading level in the same industry. Our company also has a high-level design and development team, including 8 senior design engineers, 8 senior R&D technicians, and 15 intermediate technicians.
Since its establishment in 2012, the company has cooperated with the Electric Power Research Office of Xi'an Jiaotong University to develop SF6 series products, has accumulated rich experience in R&D and production, and established and improved a quality management system. It has successively obtained ISO9001 quality system certification and measurement certificates. Monitoring, environmental monitoring, SF6 density electrical products, SF6 valve group series, etc. have obtained Hunan Changgao, Taikai, Xinjiang Jingkai Switch Co., Ltd.; Xinjiang Electric Power Company, Guangxi Nanning Ultra-High Voltage Bureau, Zunyi Power Supply Bureau, State Grid Sichuan Panzhihua Power supply company, Yulin Power Supply Bureau, Xining Power Supply Bureau, Weinan Power Supply Bureau, Meishan Power Company, Ganzi Prefecture Power Supply Bureau, State Grid Sichuan Ya'an Power Supply Company and other users have recognized and unanimously praised.
Our company has a professional after-sales service team, which implements 24-hour all-day tracking service for the products sold, and provides on-site debugging guidance for installation and use.
In the great opportunity of the western development, we must face users, face the future, fully grasp and utilize the existing favorable conditions and advantages, Xi'an Hengruifeng Electric Co., Ltd. will strive to repay the care of the Quartet, no matter now or in the future, we will Cherish every opportunity and serve the society with high-quality products.
We sincerely welcome friends from all walks of life to join us, cooperate in any form, develop together, and produce more and better power equipment to meet the needs of the continuous development of my country's power industry and create a better future.
Corporate philosophy: honesty and long-term trust, diligence and pragmatism.
Quality policy: keep improving quality and perfect service.
Quality goal: Take scientific and technological innovation as the guide, with standardized management as the guarantee, to create high-quality products that customers are satisfied with.
Service concept: integrity, quality, speed.
Products we serve:
High voltage products (switches above 110kv)
MJ-III SF6 Density Relay
MJ-IV Intelligent Remote Transmission SF6 Density Relay
ZMJWXYC wireless passive remote transmission SF6 density relay
JCQ3(E)-10/800D (communication type) arrester online monitoring system
Medium voltage products: (suitable for 10kv-35kv inflatable cabinets)
HRFY63JC Series SF6 Density Monitor
HRFY63MP Series SF6 Barometer
YS-SF6-02 series gas pressure sensor
YCMJ-YS-IN SF6 Smart Monitor
YS-ZF series inflatable joint
SF6 Density Relay Supporting Disassembly-Free Valve Group
Engineering class:
Renovation of SF6 Density Relay Matching Non-Disassembly Valve Group
SF6 switch gas circuit reconstruction
Technical Transformation of Intelligent Monitoring of SF6 Density Relays
Technical Transformation of Surge Arrester Intelligent Monitoring

Li Xinyi

xahrfdq@163.com

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