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Cable multi-state online monitoring system
It can detect basic partial discharge parameters such as discharge volume, discharge phase, and discharge times, and can provide statistics of relevant parameters according to customer requirements.
Minimum measurement discharge: 20pC; measurement frequency band: 500kHz-20MHz; discharge pulse resolution: 10µs; phase resolution: 0.18°.
It can display power frequency periodic discharge graph, two-dimensional (Q-φ, N-φ, N-Q) and three-dimensional (N-Q-φ) discharge spectrogram.
It can record measurement phase sequence, discharge volume, discharge phase, measurement time and other related parameters, can provide discharge trend graph and have early warning and alarm functions, and can query, delete, backup and generate reports on the database.
Cable tunnel online monitoring system
With the development of economy, the high and low voltage lines of cities, industrial and mining and national defense construction gradually realize cable entry, and cable tunnels have gradually become the main method of urban power supply. However, tunnels are not like overhead lines, which can be carried out on the map with the naked eye. Inspection and fault finding require assistance based on science and technology, and a comprehensive online monitoring system for cable tunnels is indispensable.
The cable tunnel online monitoring system is mainly composed of two parts: the front-end device and the back-end monitoring and analysis software. The front-end part monitors the cable body and the tunnel environment through sensors, and transmits the monitoring data to the back-end monitoring and analysis center, so that the relevant department staff can check the tunnel The environment is monitored remotely, and if an abnormality occurs, corresponding maintenance measures can be taken in time and accurately.
Sound and light alarm (JC-DL/1-09)
JC-DL/1-09 type sound and light alarm uses high-brightness LED as the luminous body, high-tech electronic stroboscopic transmission principle, longer service life. The new PC material is anti-fall and anti-aging, sturdy and durable, and has strong stability on equipment with high vibration and impact. The alarm performs sound and light alarm actions by monitoring the alarm output signal of the host, reminding the on-site staff to deal with the alarm information in time.
JC-SJ-ZN01 water immersion detector
Circuit detection principle: The photoelectric water immersion sensor adopts the photoelectric liquid level sensor head as the sensitive unit, using the principle of total internal reflection, and is realized by the luminous tube and the detector in the plastic dome inner cover of the head of the device. The sensor is a relay dry contact output type. When the sensor penetrates into liquid, the node changes from closed to open.
JC-SB-ZN01 Intelligent Water Pump Control Unit
Overload protection, stable operation
Customizable output control power
Strong anti-interference and stable performance
JC-DG-ZN01 Intelligent Lighting Control Unit
Overload protection, stable operation
Customizable output control power
Strong anti-interference and stable performance
Access control electromagnetic sensor
Aluminum alloy material: The door magnetic switch adopts aluminum alloy metal material, which is stable and safe to use. The connecting wire adopts 22# wire with a total length of 270mm. Suitable for use on walls, wooden door frames and cabinet doors;
High adsorption magnetism: The door magnetic switch adopts sealing design, closed magnet, high adsorption magnetism, and more stable use;
Wide applicability: The door magnetic switch has a fully sealed waterproof and dustproof design, which is suitable for installation in various environments, is not easy to be damaged, and has a long life. Comes with mounting screws, easy to install, suitable for wooden frames, walls and cabinet doors.
JC-MJ-ZN01 Access Control System
Can control single door/double door/four door
Support wiegand26/34 interface card reader, fingerprint and other biometric card reader
All I/O ports have overvoltage protection
Output relay interface normally open / normally closed optional
High current relay output interface, which can drive any kind of door lock
Support various door opening methods such as swiping card, card + password, pure password, etc.
JC-GS200 Series Intelligent Integrated Gas Detector
Detection principle: methane: infrared;
Oxygen, carbon monoxide, hydrogen sulfide, hydrogen, temperature, humidity: electrochemistry;
Detection gas: methane (CH4); oxygen (O2); carbon monoxide (CO); hydrogen sulfide (H2S); hydrogen (H2);
Temperature and humidity transmitter (JC-DL/1-08)
The temperature and humidity transmitter includes a temperature and humidity measurement unit and a communication unit. The temperature and humidity measurement part adopts a digital output temperature and humidity module, which has the characteristics of high accuracy and good repeatability. In summary, the transmitter can monitor changes in environmental temperature and humidity in real time and online, and upload the detected data through the RS-485 bus.
Cable dynamic current-carrying capacity real-time analysis system (10kV and above)
1) The system uses the thermal network method based on Ohm's law of the thermal 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.
2) Experiments have proved that using this cable calculation method, the maximum deviation between the calculated conductor temperature and the actual measured value within the range below 90 ℃ does not exceed ± 3 ℃; near the maximum operating temperature of the cable conductor, the measured conductor steady-state operating current and calculation The difference in current value is less than ±1%.
3) Use this software to carry out related cable selection calculation and operation verification. The process 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 for selecting and mastering the cable operation status. It is more accurate, and it is also very helpful to the evaluation of the operating life of the cable.
On-site detection, diagnosis and fault location system for partial discharge of high-voltage cables
It is used for on-site frequency conversion resonance voltage test of 10kV~220kV high-voltage cables, on-site partial discharge detection and fault location under oscillating waves. It can conduct AC withstand voltage and partial discharge fault location tests on high-voltage cables with a length of 0.2km-8km.
Multifunctional partial discharge detection analyzer
The partial discharge detection analyzer (BYPDM) is a multi-functional, multi-purpose portable device, suitable for partial discharge (Partial Discharge, PD) live detection of transformers, GIS, cables, switch cabinets and other equipment. The partial discharge detector also comes with partial discharge acquisition and analysis software, with a flexible user interface, which is convenient for you to accurately judge the characteristics of partial discharge.
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