A power frequency electric field intensity monitoring system for power transmission and transformation projects
A technology of power frequency electric field and monitoring system, applied in electromagnetic field characteristics, measuring devices, measuring electrical variables, etc., can solve problems such as large errors and inaccurate monitoring results, and achieve large errors and small power frequency electric field strength monitoring errors. , the monitoring results are accurate
Active Publication Date: 2019-08-13
STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
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Problems solved by technology
[0006] The invention provides a power frequency electric field strength monitoring system for power transmission and transformation projects, which solves the technical problems of large errors and inaccurate monitoring results in the existing power frequency electric field strength monitoring system, and realizes the error of the power frequency electric field strength monitoring system. Small, accurate technical effect of monitoring results
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Embodiment 1
[0029] In the first embodiment, a power frequency electric field strength monitoring system for power transmission and transformation projects is provided, please refer to figure 1 , the system includes: a sensor 5, a signal transmission line 6, a display device 7, a support 4, the sensor is connected to the display device through a signal transmission line, the sensor is fixed on the support, wherein the capacitance of the support It is specifically: less than 0.5pF, and the equivalent resistance of the stent is specifically: greater than 50G ohms.
[0030] Please refer to figure 2 , wherein, the bracket specifically includes: 1-straight support rod, 2-connecting plate, 3-tripod support.
[0031] Further, the material of the bracket is engineering plastic.
[0032] Further, when the bracket is at an ambient temperature of 0°C to 40°C and a relative air humidity of 20% to 95%, when voltages of 1000V, 2000V, 3000V, 4000V, and 5000V are respectively applied to the bracket, th...
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The invention discloses a power frequency electric field intensity monitoring system for a power transmission and transformation project. The system comprises a sensor, a signal transmission line, a display device and a bracket. The sensor is connected with the display device through the signal transmission line. The sensor is fixed on the bracket. The capacitance of the bracket is less than 0.5 pF. The equivalent resistance of the bracket is greater than 50 G ohm. The power frequency electric field intensity monitoring system has the advantages of small error and accurate monitoring result.
Description
technical field [0001] The invention relates to the field of power frequency electric field strength monitoring for power transmission and transformation projects, and in particular to a power frequency electric field strength monitoring system for power transmission and transformation projects. Background technique [0002] The impact of power transmission and transformation equipment on the surrounding environment mainly includes electromagnetic radiation, noise, ecological environment, and visual impact. Among them, power frequency electromagnetic field is the main environmental impact problem of power facilities. Therefore, it is necessary to monitor the power frequency electric field intensity of power transmission and transformation projects. [0003] In the existing technology, the power frequency electric field strength monitoring system is mainly used to monitor the power frequency electric field strength of power transmission and transformation projects, but the e...
Claims
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IPC IPC(8): G01R29/08
CPCG01R29/0864
Inventor 兰新生丁登伟周易谦王志高王方强苏长华
Owner STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST