On line monitoring device for conductor galloping of transmission line
model：DX-WPS100-WD
1、 Demand analysis
With the continuous and rapid development of the scale of power grid equipment, along the long distance transmission channel, the risk factors of large-scale power grid failures caused by natural disasters such as icing, strong wind, mud rock flow and external damage have existed for a long time, bringing great security risks to the stable operation of the power grid. It is necessary to conduct real-time perception, monitoring and early warning of the operation status of the transmission line through online monitoring means. The Eighteen Major Anti accident Measures of Power Grid Co., Ltd. (Revised Edition) pointed out that the observation of ground wire icing and galloping should be strengthened, online monitoring devices should be installed and ice observation stations (points) should be set up for icing and galloping areas, the survey and collection of meteorological environment data along the line should be strengthened, and the distribution map of ice area and galloping area should be revised in time. The transmission line galloping state sensing terminal can sense the amplitude and frequency information of the line, thus effectively warning the hidden dangers in the line operation. With the construction of ubiquitous power Internet of Things, it is required to fully perceive the state of the power grid, and then put forward higher requirements for the collection of massive metadata. Therefore, the intelligent level of transmission line state perception can be improved by deploying transmission line galloping state sensing terminals and systems to timely obtain the dynamic information of ontology and channels.
2、 Working principle
The online monitoring device for conductor galloping of transmission line uses solar energy and batteries for front-end power supply. It digitally compresses and encodes the galloping, micrometeorology and other data through remote collection, and then sends the on-site galloping data to the data monitoring center through 4G/5G/WIFI wireless transmission, so that maintenance and monitoring personnel can analyze and compare the galloping, micrometeorology and other data sent from the site. If abnormal early warning information is found, And immediately make corresponding emergency treatment to ensure the safe operation of high-voltage lines.
3、 Product Functions
(1) Basic configuration of galloping monitoring: main control unit, galloping monitoring unit, communication unit, power supply unit, mounting bracket and auxiliary materials;
(2) * Data acquisition function: conductor galloping information acquisition (galloping amplitude, vertical galloping amplitude, horizontal galloping amplitude, galloping frequency), on-site storage and remote upload;
(3) Real time and accurate monitoring of the displacement, acceleration, angle, etc. of the field wire, analysis and data modeling in combination with the sensor quantity in the equipment, and timely diagnosis of abnormal information.
(4) Through the core function - micro meteorological data collection and analysis, the front-end temperature, humidity, wind speed, wind direction, etc. are combined with the conductor galloping amount to timely process the data.
(5) It has a stable and powerful battery management system, WeChat client, patrol function, and built-in encryption security chip. Timely, efficiently and accurately ensure the safety facilities on site.
(6) Data communication: monitoring device and data transmission base station collect data through 2.4GHz wireless communication; The data transmission base station transmits the data to the monitoring platform through the 4G/5G/WIFI network.
(7) Support remote control: the data transmission base station can realize remote maintenance, configuration parameters, remote upgrade, and has the ability to access to the designated platform.
(8) Power supply mode: the monitoring device adopts two modes of wire energy extraction and solar energy energy extraction.
(9) It has the function of self checking the main components of the device on a regular basis. In case of abnormal conditions, it needs to alarm actively;
4、 Technical parameters
Serial No | category | project | technical parameter |
1 | Overall performance | Complete machine configuration | Main control unit, galloping monitoring, micro meteorological monitoring unit, communication unit, power supply unit, mounting bracket and auxiliary materials |
2 | Overall quality | Less than 30KG (including solar panel and support) | |
3 | texture of material | Stainless steel body+hot galvanized support | |
4 | Dancing monitoring unit | Communication frequency | 470M |
5 | Angle measuring range | －90°～90° | |
6 | amplitude | 0～20m | |
7 | frequency | 0.1～50Hz | |
8 | Installation method | Fixing of wire clamp | |
9 | Long measurement cycle | 20 minutes | |
10 | Average power consumption | Power consumption ≤ 20 μ A (3V) @ 25 ℃ (life expectancy>10 years) | |
11 | antenna | External antenna, height ≤ 5 mm | |
12 | Battery capacity | 13000mAh high temperature lithium sub battery (150 ° C) | |
13 | Housing material | aluminium alloy | |
14 | Micro meteorological monitoring unit | air temperature | Measuring range: - 40-80 ℃; Resolution: 0.1 ℃; Accuracy: ± 0.3 ℃ |
15 | humidity | Measuring range: 0-RH; Resolution: 0.5%; Precision: 3% RH | |
16 | wind direction | Measuring range: 0-360 °; Resolution: 0.1 °; Accuracy: ± 3 °; | |
17 | wind speed | Measuring range: 0-60m/s; Resolution: 0.05 m/s; Accuracy: ± 0.3 m/s; | |
18 | Communication unit | communication mode | All Netcom 4G/5G/WIFI wireless transmission |
19 | Data security | VPN dedicated channel can be used for communication with the master station, and encryption transmission is optional. | |
20 | Access protocol | Access to monitoring platforms of provincial power companies such as Southern Power Grid and State Grid | |
21 | Power supply unit | Battery capacity | 60Ah/12V |
22 | Solar panel power | 100W/18V | |
23 | Power supply duration | The power supply requirement that the device can operate normally for 15 days without continuous illumination. | |
24 | Other parameters | work environment | Working temperature: - 40~+70 ℃; Relative humidity: 5-99% RH |
25 | Overall service life | More than 8 years | |
26 | Degree of protection | IP67 |
