Demand Analysis
Ice cover of transmission lines and the various types of ice accidents caused by them have seriously jeopardized the safe operation of China's power system. Ice accidents in China are characterized by long duration, high frequency, large coverage area, etc. Severe ice cover in micro-meteorological areas will cause the decline of electrical and mechanical properties of transmission and substation equipment, and severe ice cover will cause overloading, uneven ice cover and de-icing at different periods will cause tension difference, insulator string ice cover flashover and ice-covered conductor dancing, all of which are the main reasons for ice-covering accidents.
Working principle
Transmission line microwave ice-covering monitoring device does not need to be installed without power outage, the device adopts unique microwave detection technology and combines with temperature analysis to realize real-time monitoring of icing conditions on various types of towers, insulators, transmission lines, etc. The system sensor adopts microwave detection technology and combines with temperature analysis to realize real-time monitoring of icing conditions.
The system sensor adopts microwave detection technology, based on the microwave signal on ice, water, air and other different substances of the feedback signal difference to achieve the sensor sensitive area of the icing information monitoring, and according to the signal strength and the distribution of the sensor sensitive area of the icing information for the calculation of the icing thickness, according to the different thickness of the icing information can be set up for icing the alarm value, to facilitate the de-icing system to start the host real-time icing signal sampling, filtering, temperature analysis, and real-time monitoring. The host computer samples, filters, amplifies and converts the icing signal to AD, and then gets the icing rate and thickness after conversion by our proprietary algorithm. When the thickness of the ice cover reaches the pre-set threshold, it sends out the icing alarm signal and then transmits it to the backstage through 4G and other wireless networks. Real-time assessment of icing hazards, to protect the safe operation of the line.
product features
1, can real-time online monitoring tower area icing, ice thickness, environmental temperature, humidity, atmospheric pressure, wind speed, direction, rainfall and light radiation, and automatically store and upload data to the background;
2、Can monitor the thickness of icing in the tower area, analyze the icing situation, and automatically alarm or prompt;.
3、With the self-test function of the on-board system. The self-test mainly includes the on-board system, network communication status, serial port communication status, sensing network status and internal hardware information. If the self-test exists
If there is any abnormality in the self-test, it will give a prompt message;
4、With 4G network, it can realize remote monitoring, data analysis and other functions. Support China Telecom, Mobile and Unicom IOT special SIM card and APN configuration.
(Enough to support MQTT, transmission I1 interface statute and other communication protocols).
5、With remote collection of line ice thickness and micro-meteorological data, etc.;.
6, with automatic analysis of data and alarm prompts the duty officer function.
7, with a test cycle after the completion of the measurement, automatic heating icing sensor, in order to prepare for the next cycle cycle work monitoring.
8, the use of high-quality sealed metal box, with good resistance to electromagnetic interference, closed, lightning, IP66 rain, dustproof function.
9, the use of efficient solar energy and battery power supply, high temperature and low temperature can be in -40 ℃ ~ 85 ℃ normal work, snowproof.
10, data with security encryption function, support access to the State Grid, South China Network unified back office.
11, low power consumption design rainy day work more than 15 days.
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