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JC-OM400D High Voltage Cable Partial Discharge Online Monitoring System


The JC-OM400D high-voltage cable partial discharge online monitoring system adopts a modular design scheme. The partial discharge pulse current signal at the cable body and the joint is coupled through the high-frequency current sensor installed on the ground wire of the cable joint; the coupled pulse current signal It is transmitted to the front-end monitoring collector through a coaxial cable, and the analog signal is amplified, filtered, and converted into a digital signal, and then transmitted to the test host through an optical fiber. The test host performs classification, identification, analysis and calculation on the signals of all sensors, and writes the discharge information data obtained through calculation into the database, and displays the monitoring results on the software panel of the monitoring system.

JC-OM300 distributed optical fiber temperature measurement system


The distributed optical fiber temperature measurement system uses the spontaneous Raman scattering signal and optical time domain reflection (OTDR) principle generated when light is transmitted in the optical fiber to obtain spatial temperature distribution information, which is dedicated to online temperature monitoring of power cables, tunnels, and subways. . A system that uses one (or more) ordinary optical fibers and one terminal device to achieve temperature measurement at up to several thousand points within a range of several kilometers is realized.

JC-QD631 Poisonous and Harmful Gas Comprehensive Online Monitoring System


The JC-QD631 toxic and harmful gas comprehensive online monitoring system is composed of a gas alarm controller and a gas detector. It is convenient to install and network and centrally control multiple monitoring points. Each channel is automatically displayed, and each channel is automatically inspected and locked. When the concentration of the detected gas in the environment reaches or exceeds the preset alarm value, the alarm will immediately sound and light alarm to remind the staff to take safety measures, and drive the exhaust, Cut off and spray the system to prevent explosion, fire, and poisoning accidents, thereby ensuring safe production. The products are widely used in dangerous places where flammable, explosive and toxic gases exist, such as gas, petroleum, chemical industry, metallurgy and so on.

JC-311 passive wireless temperature online monitoring system


JC-311 passive wireless temperature online monitoring system uses surface acoustic wave (SAW) devices as sensors, combined with wireless temperature collectors to realize the collection and transmission of sensor information. The sensors are installed on the measured point and can be connected without a connection. The temperature information of the measured point is transmitted. The sensor itself does not need power supply, and does not need to take electricity from the power equipment, so it has outstanding safety, reliability and maintainability. This technology is a disruptive technology in the safety online monitoring of high-voltage equipment, and is a breakthrough in the real-time temperature monitoring technology of high-voltage equipment in smart grids.

JC-OM400K switchgear local on-line monitoring system


The JC-OM400K switchgear local on-line monitoring system detects the electromagnetic wave radiation accompanying the partial discharge. The system scans the electromagnetic wave radiation in the frequency range of 10~100MHz and automatically determines the actual detection frequency of the partial discharge on site, and then the detection data is based on the partial discharge Pulse cluster counting mode display. This system is an online monitoring device for detecting, analyzing and continuously monitoring the partial discharge signal in the high-voltage switchgear. As shown in the figure below, the JC-OM400K host in the system is used to process and digitize the signal obtained from the UHF sensor, and the upper computer is used to screen and analyze the partial discharge signal, complete the partial discharge pulse numerical record, and monitor the development status of the partial discharge volume. And other functions.

Wireless lightning arrester online monitoring system based on Internet of Things protocol


The current passing through the zinc oxide resistor is called the leakage current of the zinc oxide arrester, and is also regarded as the total leakage current of the arrester. In principle, the smaller the better. Leakage current can reflect the insulation of the arrester and is an important means to judge the quality of the arrester under the operating voltage. For this reason, the wireless arrester leakage current sensor we developed is an online lightning arrester leakage current monitoring device based on a wireless sensor network designed for the above problems existing in the arrester. It uses wireless Internet of Things technology for online monitoring, which greatly reduces the amount of labor and fills the gap that the current resistive current cannot be monitored online in real time. The equipment complies with the "☆Power Equipment Wireless Sensor Network Node Networking Protocol", which improves the reliability of data transmission and good environmental adaptability.

Wireless lightning arrester online monitoring system


The Internet of Things lightning arrester online monitoring device, the intelligent online monitoring IED and the state monitoring integrated server together form the Internet of Things lightning arrester online monitoring system. The lightning arrester monitoring adopts a wireless remote transmission monitor to realize a fully isolated sampling method without residual voltage. The lightning arrester is used to obtain energy and power supply. The collected current is converted into a voltage signal and then entered into the wireless sending module, and the measurement result is transmitted wirelessly The data acquisition device IED, the device will receive the voltage signal through the wireless receiving module, and then enter the signal conditioning circuit, and use a unique expert diagnosis system to scientifically analyze and diagnose the collected data, and then analyze whether the state of the arrester is normal and faulty species. Timely and conveniently understand and grasp the health status of substation equipment. Through real-time monitoring of the lightning arrester's leakage current and the number of lightning strikes, the monitored data is analyzed, fitted and processed, and combined with the on-site working conditions, the leakage current of the porcelain sleeve or the leakage current of the insulating rod caused by the pollution or internal moisture of the arrester can be found in time Increase and other issues to avoid accidents.

JC-OM200A Transmission Line Lightning Arrester Online Monitoring System


JC-OM200A transmission line lightning arrester online monitoring system (hereinafter referred to as this system) is a new high-tech product developed by our company for the needs of the power system. The current detection of the system adopts a single-turn through-core current sensor to achieve full isolation () sampling method without residual voltage, advanced microprocessor technology and unique transient parameter testing technology for linearization and calculation, and the measurement results Digital wireless transmission via GPRS/GSM: The system has extremely high reliability and safety and relatively low price, so that the system can be installed in each group of MOA arresters for real-time detection, realize centralized monitoring, and effectively improve the performance of line arresters. The inspection efficiency reduces the labor intensity of the inspectors. Achieve accurate and timely grasp of the health status of operating equipment, so that operators can grasp and deal with potential accidents in advance, and ensure the safe power supply of the power grid.

MOA current monitor online monitoring system


Function introduction: MOA current monitor is mainly used for real-time and online monitoring of the full current, discharge current and cumulative action times of MOA arresters. The MOA current monitor adopts a current sampling method with no residual voltage and full isolation, which is mainly composed of a current transformer, A/D conversion, single-chip microcomputer and RS485 communication module. The current transformer is a single-turn primary through-core current transformer, and the measurement result is used The bus is used for transmission. The MOA current monitor adopts advanced compensation technology, so it has good versatility and interchangeable measurement.

On-line monitoring system for transformer core/clamp grounding


The JC-OM201 transformer core/clamp grounding online monitoring system consists of the JC-OM201 transformer core/clip grounding monitoring device and the JC-8000 integrated intelligent online monitoring device.

JC-OM400 GIS局放在线监测系统


用于监测并分析气体绝缘组合电器(GIS)设备内部局部放电信号,采集到的信号通过滤波和放大等处理后,输出给数据分析系统进行集中分析,显示以及输出告警,进而监测并评估GIS设备运行状态,有效避免GIS高压设备的突发性事故。系统采用了UHF特高频传感器信号探测技术、传感器优化布置技术以及SQL 数据库的分析等。系统广泛应用于SF6断路器、GIS、柜式开关、柱上开关、变压器和互感器的可靠性监测与诊断。实现变电站检修数字化。

JC-OM301 Fiber Bragg Grating Temperature Online Monitoring System


The JC-OM301 fiber grating temperature online monitoring system is mainly composed of fiber grating sensor, transmission cable, fiber grating intelligent demodulator and computer. The fiber grating sensor is installed on the surface of the measured point to realize the signal collection; then the signal is transmitted to the fiber grating intelligent demodulator through the optical cable. The optical fiber grating intelligent demodulator transmits the signal to the computer through the Ethernet port after analysis, and the computer system implements data processing, fault diagnosis, alarm and control, etc.

JC-OM300 distributed optical fiber temperature measurement system


The distributed optical fiber temperature measurement system uses the spontaneous Raman scattering signal and optical time domain reflection (OTDR) principle generated when light is transmitted in the optical fiber to obtain spatial temperature distribution information, which is dedicated to online temperature monitoring of power cables, tunnels, and subways. . A system that uses one (or more) ordinary optical fibers and one terminal device to measure the temperature of up to several thousand points within a range of several kilometers is realized.

SF6 micro water density online monitoring system


The JC-OM500 SF6 gas micro-water density online monitoring system is a key project established by the company in accordance with the development requirements of the national smart grid. This series of products adopts the latest telemetry and remote sensing technology and background computer technology in one, compact appearance, can achieve high-precision measurement, Computer background processing, massive historical data storage and other functions, suitable for on-line measurement of water, density and temperature of SF6 gas of various voltage levels of SF6 circuit breakers, GIS, AIS and other equipment, to achieve no emissions, environmental protection, safety, and real-time , Remote and other advanced dynamic monitoring to meet the needs of power distribution network automation and equipment status maintenance, and to reserve interfaces for the intelligent construction of the power grid. This series of products has advanced technology, filled the domestic gap, and obtained a number of patents.

JC-OM200 Lightning Arrester Online Monitoring System


The JC-OM200 arrester online monitoring device realizes the monitoring of the insulation performance of the metal zinc oxide arrester. The online monitoring of the arrester requires two devices: the JC-OM200 arrester online monitoring device and the JC-OM200/PT bus voltage online monitoring device, which can monitor the full current of the arrester in real time. , Resistive current, capacitive current, number of lightning strikes, lightning strike time, through analysis and fitting processing of the monitored data, combined with the on-site working conditions, the leakage current of the porcelain sleeve caused by the pollution or internal moisture of the arrester can be found in time Or increase the leakage current of the insulating rod to avoid accidents.
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