电力物联网传感器-Jiangsu jotry Electric Technology Co., Ltd.

Product System

Cable sheath circulation monitoring system

The high-voltage cable grounding circulation monitoring system is composed of a signal monitoring unit, a data communication unit, and a local sensor unit. It completes the environmental temperature and humidity detection of the high-voltage cable grounding circulation and the grounding box, and transmits the data to the local monitoring panel through the RS485/IEC61850 communication module. The monitoring terminal uses advanced measurement circuits, high-speed MCUs, and stable and reliable sensors to achieve accurate measurement of monitoring signals and reliable data transmission.

Cable dynamic current-carrying capacity real-time analysis system (10kV and above)

The system uses the thermal network method based on Ohm's law of the heat flow field to calculate the current carrying capacity of the cable. The concept is clear and easy to understand and master. It can not only be used to solve the thermal field of the cable, but also can be used to obtain the cable conductor temperature in the case of monitoring the surface temperature of the cable, or calculate the ambient temperature at this time according to the actual load and surface temperature of the cable, so as to obtain the current environment The rated load of the cable under the conditions. The use of this software for cable selection calculation and operation verification is convenient, fast and accurate. It not only saves a lot of time for cable selection and maintenance personnel, but also provides a reliable basis to make the selection and control of the cable operation status more accurate , It is also very helpful to the evaluation of the operating life of the cable.

Distributed comprehensive monitoring and evaluation system for power cable status

This system is suitable for comprehensive monitoring of the operating status of power cables of 110KV and above, supports GPRS network, provides real-time monitoring data to maintenance personnel, reduces the workload of inspection personnel, and achieves early warning for long-term changes in monitoring points. Prevent emergencies from happening. Real-time understanding of the operating status of the high-voltage cable, by monitoring the partial discharge of the cable, the circulating current of the cable's high-voltage sheath, and the cable optical fiber temperature measurement system (DTS), and on this basis, the real-time core current carrying capacity is analyzed, and the operating status of the cable is monitored. Provide reliable data for maintenance personnel. Through GPRS, CDMA and other wireless transmission methods, the relevant data such as partial discharge, temperature and circulation are transmitted to the back-end server, and then forwarded to the handheld terminal through the server, so that the operation and maintenance personnel can keep abreast of the operation of the cable at any time. Through the three aspects of data, more Effectively judge the running status of the cable.

JC-OM400L Tunnel Cable Partial Discharge Monitoring System

The JC-OM400D 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 pulse current sensor installed on the ground wire of the cable joint; the coupled pulse current The signal is transmitted to the front-end monitoring collector through the coaxial cable, and the analog signal is amplified, filtered, and converted into a digital signal, and then transmitted to the back-end server through the optical fiber. The background server 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 of the monitoring system.

Point-type optical fiber temperature sensing system

The point-type optical fiber temperature sensing system uses the principle of fluorescence detection to monitor temperature information through optical fibers. It is suitable for temperature sensing monitoring in areas with high temperature monitoring accuracy and narrow spaces, such as switch cabinet contacts, motor stators, transformer windings, etc. Most of these monitored equipment have relatively harsh electrical environmental conditions (electromagnetic field radiation, surges, electrical pulses and other electromagnetic interference), and optical fibers have the characteristics of electrical insulation, intrinsic safety, and immunity to electromagnetic interference, so the probe of the optical fiber sensor can be directly It is installed on the measured point in a contact manner, and monitors the temperature of these devices at "zero distance" to ensure real-time and accurate temperature detection.

Power cable multi-state online monitoring system

The cable is a facility with a high probability of failure of the cable network. The signal of the sensor coupling cable grounding wire, the partial discharge of the sensor to the cable joint and the distributed optical fiber temperature measurement system are used to monitor the cable and collect the ground current collected. The parameters, partial discharge parameters and cable temperature parameters are transmitted to the monitoring center to analyze and evaluate the operating status of the cable to realize the monitoring of the operating status of the cable from time to time, so as to provide a powerful guarantee for the power sector to effectively prevent accidents and disasters.

Integrated intelligent dehumidification device

The integrated intelligent dehumidification device is a dehumidification device for various power and communication equipment such as power equipment switch cabinets, electrical control cabinets, terminal boxes, power boxes, etc. It is used to reduce the humidity of the space gas, avoid condensation on the surface of electronic components, and reduce The high voltage breakdown risk of insulating devices improves the reliability of the devices and prolongs the service life of the equipment.

Ground circulating current online monitoring system

The ground circulating current online monitoring system generally includes a data server, a communication subsystem, a sheath current acquisition device, and a power supply system. Using low-power industrial-grade microprocessor chip technology, cable energy technology, GPRS/3G network communication technology, centralized control technology, bus transmission technology, digital sensing technology, multimedia technology and data analysis technology, etc., in all aspects of information collection Based on the use of the network for data transmission, the software platform completes the comprehensive processing and integrated control of information, and realizes data sharing, storage, analysis, and display on a unified information platform, providing managers with a set of convenient and effective analysis, The management tool truly realizes the automatic inspection and state maintenance of cable equipment, and effectively improves the power cable disaster prevention and mitigation capabilities.

Wireless air pressure measurement sensor

Real-time online monitoring of the absolute pressure and temperature of the atmospheric environment.

380v wire and cable anti-theft sensor

The DXT-K three-phase power-off sensor will output a normally open and normally closed switch signal when it detects any one of the A phase, B phase, and C phase of the three-phase AC power is cut off. Applicable to various industries such as communication room, hospital, electric power supply, customs, bank, government agency, factories and mines. The smart or GSM short message remote notification of power failure and incoming call alarms can be customized.

Distributed fault location monitoring and pre-alarm system for transmission lines

The distributed fault diagnosis system of the transmission line obtains the traveling wave current at the time of the fault through the monitoring terminals installed on the conductors in a distributed manner, determines the fault location, and uses intelligent identification technology to analyze the fault waveform characteristics and identify the fault as a lightning fault or a non-lightning fault. In the case of a lightning failure, a lightning shielding or counter-strike failure will be further separately issued. The transmission line fault diagnosis method based on distributed monitoring overcomes the shortcomings of traditional methods that require the installation of monitoring equipment on the poles and towers one by one. You only need to install a set of monitoring devices every 20 to 30 kilometers across the entire line to achieve full line fault monitoring. The current technology is advanced and practical, lightning strike/non-lightning fault identification and location system.

Insulator contamination online monitoring equipment

The system can detect air temperature, line meter temperature (high-voltage terminal field), humidity, wind speed and direction, air pressure, rainfall, leakage current of insulators, calculate pollution flashover warnings, ice thickness, calculate icing warnings and upload videos Images or pictures, real-time monitoring of the scene. In addition, the system can support solar power supply; it is convenient to get electricity. In addition, it is also anti-lightning, anti-corrosion, anti-magnetic, and anti-high voltage. Its transmission communication channel can be compatible with PRS, CDMA, 3G, Internet or a form of communication with superior performance;

Bearing vibration online monitoring sensor

This product uses a fully integrated process and stainless steel material, eliminating the need for connection to the secondary meter, and improving stability and anti-interference ability. It can be widely used in rotating machines such as fans, pumps, motors, steam turbines, and compressors.

LTM rod series displacement sensor

.Excellent linearity ±0.05% .The resolution is higher than 0.01mm .High running speed 10m/s .Protection grade IP65 .DIN43650 standard plug and socket .Long service life-movement times greater than 100×106 times .Absolute value measurement, no need to power off memory or return to origin .This series of sensors are used in measurement and control systems to directly and absolutely measure displacement and length. The structure of the sensor is designed to facilitate installation and disassembly. The surface of the sensor is specially treated to work at high speed and low wear. The ball and socket coupling at the front of the sensor can overcome some slight lateral stress of the transmission rod. Ensure the normal operation of the sensor. The sensor's conductive plastic material fixation and structural design process ensure that the sensor can work reliably even under harsh conditions. Sliding card slot is convenient for installation position adjustment. Application: injection molding machine, hydraulic press, woodworking machinery, coal mining machinery, etc.