Calibrating device of direct current resultant field tester and application method thereof
A technology for calibrating devices and synthesizing fields, which is applied in measuring devices, instruments, measuring electrical variables, etc., can solve problems such as large changes in temperature and humidity, and achieve the effect of improving calibration accuracy
Pending Publication Date: 2018-06-05
湖南省湘电试验研究院有限公司
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Problems solved by technology
[0003] The technical problem to be solved by the present invention: Aiming at the above-mentioned problems of the prior art, a calibrating device for a DC synthetic field tester and its application method are provided. The present invention implements environment construction and calibration environment through a calibrating electric field generator in a temperature and humidity chamber The temperature and humidity control can overcome the influence of temperature and humidity on the calibration, effectively improve the calibration accuracy of the DC synthetic field measuring instrument, and overcome the influence of the characteristics of the sensor itself or the electronic components of the DC synthetic field measuring instrument. The measurement results are easily affected by changes in temperature and humidity. Issues that make a big difference
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[0031] Such as figure 1 with figure 2 As shown, the present embodiment provides a calibration device for a DC synthetic field tester, which includes a corona generator plate DC voltage generator 1, a control plate DC voltage generator 2, an ion current plate DC voltage generator 3, and a The temperature and humidity box 4 of the humidity detection and adjustment equipment is provided with a calibration electric field generator 5 inside the temperature and humidity box 4. The calibration electric field generator 5 includes a shielding plate 51, a corona plate 52, and a control pole arranged in parallel from top to bottom. Plate 53, ion flow pole plate 54 and ground pole plate 55, the output end of corona pole plate DC voltage generator 1 is communicated with corona pole plate 52 through cable, the output end of control pole plate DC voltage generator 2 is connected with The control plate 53 is connected, the output end of the ion current plate DC voltage generator 3 is connec...
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The invention discloses a calibrating device of a direct current resultant field tester and an application method thereof. The calibrating device comprises a corona polar plate direct current voltagegenerator, a control polar plate direct current voltage generator, an ion current polar plate direct current voltage generator, and a temperature and humidity box with temperature and humidity detection and regulation equipment, wherein a calibrating electric field generator is arranged in the temperature and humidity box; the calibrating electric field generator comprises a shielding polar plate,a corona polar plate, a control polar plate, an ion current polar plate and a grounding polar plate which are distributed in parallel from the upper part to the lower part in sequence. The application method comprises initial connection, ensuring constant temperature and humidity and calibration testing. The calibrating device realizes standard electric filed environment construction and temperature and humidity control of a calibrating environment through the calibrating electric field generator and the temperature and humidity box, can overcome the influence on calibration by temperature and humidity, effectively improves the calibration accuracy of the direct current resultant field tester, and overcomes the problems that the direct current resultant field tester is affected by characteristics of sensors or electronic elements, and measurement results are easily affected by variation of temperature and humidity and are greatly changed.
Description
technical field [0001] The invention relates to a calibration technology of a DC synthetic field tester for electromagnetic compatibility testing of a high-voltage direct current transmission line, in particular to a calibration device for a DC synthetic field tester and an application method thereof. Background technique [0002] With the construction and operation of EHV and UHV DC transmission lines, the electromagnetic environment problems caused by the conductor corona of DC transmission lines have been widely concerned. When the electric field intensity on the surface of the conductor of the transmission line is greater than the initial corona field intensity, corona occurs on the surface of the conductor. Unlike AC transmission lines, there is a moving charge generated by corona discharge near the DC line, which greatly increases the electric field below the line. The DC combined electric field strength is an important evaluation index of the electromagnetic environm...
Claims
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Login to View More IPC IPC(8): G01R35/02
CPCG01R35/02
Inventor 邹妍晖岳一石侯赟黄韬吕建红
Owner 湖南省湘电试验研究院有限公司