Ground electrode status monitoring device for HVDC power transmission system
A state monitoring device and power transmission system technology, applied in the direction of measuring devices, signal transmission systems, instruments, etc., can solve the problems of heavy cover plate, labor-intensive and time-consuming, etc., and achieve easy installation and use, reduce work intensity, The effect of saving labor costs
Active Publication Date: 2018-01-16
STATE GRID CORP OF CHINA +1
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Problems solved by technology
[0003] The traditional method of measuring the ground electrode water level, water level and ambient temperature and humidity requires the operation and maintenance personnel to lift the monitoring well cover on site and carry out manual measurement and recording. Due to the heavy weight of each cover, multiple operation and maintenance personnel need to use special tools It takes a lot of labor and time to measure and collect all the monitoring well information of the ground electrode
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Embodiment 1
[0027] 1. Hardware circuit structure:
[0028] Such as figure 1 As shown, the hardware circuit of a ground electrode water well state monitoring device is mainly composed of a microprocessor, a crystal oscillator, a wireless peripheral peripheral circuit, an antenna 1, a battery, a digital temperature and humidity sensor, a digital water temperature sensor, and a pressure sensor.
[0029] The above-mentioned microprocessor is a wireless multi-protocol SoC (system on chip), supports Bluetooth and 2.4GHz ultra-low power wireless applications, and has the advantages of high integration, low cost, strong processing capability, low power consumption and small size. The microprocessor is used for wireless communication, controlling external equipment, and processing data. The above-mentioned crystal oscillator provides a reference clock for the wireless transceiver module of the microprocessor to ensure that the wireless communication frequency is within a rated error range. The a...
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The invention relates to a high-voltage DC transmission system earth electrode state monitoring device, which is characterized by comprising a microprocessor. The microprocessor is respectively connected with a digital temperature and humidity sensor, a digital water temperature sensor, a water level sensor, an antenna (1), a crystal oscillator and a battery. The high-voltage DC transmission system earth electrode state monitoring device has the beneficial effects that the persons, the time and the workload for operation and maintenance of the high-voltage DC transmission system earth electrode can be effectively reduced, the work intensity of first-line production persons is lessened, the work efficiency is improved, and the labor cost is saved; and due to the high-integration and simple design, the device has the advantages of good environmental adaptability, high safety reliability, and long-time maintenance free, and the mounting and the use are easy.
Description
technical field [0001] The invention relates to a monitoring device for ground electrode status of a high-voltage direct current transmission system. Background technique [0002] As an important part of the DC transmission system, the main function of the DC grounding electrode is to provide a low-resistance path for the DC current, limit the neutral point potential and the unbalanced current flowing through the two poles. Its safe and reliable operation plays a vital role in DC transmission system. At present, most of the grounding poles of HVDC transmission projects in China are shallow-buried land grounding poles. For this type of ground electrode, the soil at the pole site must maintain good electrical and thermal conductivity, a large thermal melting coefficient and sufficient humidity to ensure good thermal stability of the ground electrode during operation. Since the grounding electrodes with different soil resistivity present different resistivity values, the temp...
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IPC IPC(8): G01D21/02G08C17/02
CPCG01D21/02G08C17/02
Inventor 赵欣洋邹洪森刘婷张斌王思杨稼祥赵希洋黄欣叶涛李磊靳武李敏吴昊唐鑫侯亮林恒
Owner STATE GRID CORP OF CHINA