Icing monitoring system

1.Introduction to Icing monitoring system

icing monitoring system includes icing-related data such as ambient temperature, humidity, wind speed, wind direction, rainfall and ice thickness.The ice covering of transmission lines and the various ice disasters caused by them seriously endanger the safe operation of my country's power system.Ice disaster accidents in my country are characterized by long duration, high frequency of occurrence, and large coverage area; severe ice covering in micrometeorological areas will cause degradation of electrical and mechanical properties of power transmission and transformation equipment, severe ice covering causes overload, uneven ice covering, and de-icing at different times, causing poor tension, insulators covered ice flashover and ice covering wire dancing, these are the main causes of ice covering accidents.

2.Working principle of Icing monitoring system

The microwave ice-covered monitoring device of the transmission line does not require power outage installation.The equipment adopts unique microwave detection technology and combines temperature analysis to achieve real-time monitoring of the icing conditions of various types of towers, insulators, transmission lines, etc.

The system sensor adopts microwave detection technology, and uses microwave signals to monitor the icing information in the sensor-sensitive area based on the difference between feedback signals of different substances such as ice, water, and air.The icing thickness is calculated based on the strength of the signal and the distribution information of the icing in the sensor-sensitive area.The icing alarm value can be set according to different icing thickness information, which facilitates the start of the deicing system.The host samples, filters, amplifies, and AD converts the icing signal in real time, and then after conversion by our proprietary algorithm, the icing rate and thickness value are obtained.When the thickness of the ice cover reaches the preset threshold, an icing alarm signal is issued, and then transmitted to the backend via a wireless network such as 4G.Assess the hazards of icing in real time to ensure the safe operation of the line.

3.Product features of Icing monitoring system

1.Be able to monitor the thickness of icy and ice covering in the tower area online in real time, wind speed, direction, temperature, humidity, atmospheric pressure, optical rainfall and total radiation, and automatically store and upload data to the backend;

2.Able to analyze the icing situation and automatically alarm or prompt;

IV.Technical parameters of Icing monitoring system

1.Ice thickness: measurement principle microwave detection, maximum measurement thickness: 30.00mm, detection resolution: 0.01mm; power: <1W (optional ice melting device 15W)

2.Wind speed: measurement principle ultrasonic wave, 0~60m/s (±0.1m/s) resolution 0.01m/s; (Invention patent, Patent No.ZL 2021 1 0237536.5)

3.Wind direction: measurement principle ultrasonic wave, 0~360° (±2°); resolution: 1°; (Invention patent, patent number ZL 2021 1 0237536.5)

4.Air temperature: measurement principle diode junction voltage method, -40-60℃ (±0.3℃), resolution 0.01℃; (Beijing Meteorological Bureau calibration certificate)

5.Air humidity: measurement principle capacitive type, 0-100%RH (±3%RH), resolution: 0.1%RH; (Calibration certificate of Beijing Meteorological Bureau)

6.Atmospheric pressure: measurement principle piezoresistive type, 30-1100hpa (±0.25%), resolution 0.1hpa; (Calibration certificate of Beijing Meteorological Bureau)

7.Optical rainfall: measurement principle photoelectric, 0-4mm/min (≤±4%), resolution 0.01mm; (Invention patent, Patent number ZL 2022 1 1306149.3)

8.Total radiation: measurement principle photoelectric effect, 0-1800W/㎡ (＜±3%), resolution 1W/㎡;

9.Collector power supply interface: GX-12-3P plug, input voltage 5V, with RS232 output Json data format, collector power supply: DC5V±0.5V peak current 1A,

10.Sensor modbus, 485 interface: GX-12-4P plug, output power supply voltage 12V/1A, device configuration interface: GX-12-4P plug, input voltage 5V

11.Solar power supply and equipped with lead-acid battery, optional 30W 20AH/50W 40AH/100W 100AH.Charging controller: 150W, MPPT automatic power point tracking, efficiency is increased by 20%

12.Data upload interval: 1 minute-1000 minutes adjustable