Test apparatus for composite insulator laboratory based on optical electric field transducer
A composite insulator and optical electric field technology, applied in the direction of electrostatic field measurement, etc., can solve problems that have not been seen, and achieve excellent results, fast measurement speed, and wide application range
Active Publication Date: 2014-05-21
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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Problems solved by technology
[0006] A set of instruments is specially made to detect the electric field distribution of composite insulators in the laboratory. At present, there are no reports of similar devices of the present invention.
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[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation.
[0024] The present invention is based on the structure of the composite insulator laboratory testing device of optical electric field sensor such as figure 1 As shown, the device is composed of a high voltage generating device 1, a fixed insulating member 2, a mobile device 3, an optical electric field sensor 4, a high-voltage optical fiber 5, a photoelectric conversion and output device 6, and a logic judgment unit 7. The composite insulator 8 is placed on the insulating member 2 Between the fixing clamps at both ends.
[0025] The high-voltage generating device 1 is a high-voltage power generation source, and its output voltage is alternating current or direct current, which can provide a voltage that meets the requirements of the space electric field test of composite insulators.
[0026] The insulating member 2 for fixing is a high-mech...
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The invention discloses a test apparatus for a composite insulator laboratory based on an optical electric field transducer. The apparatus comprises a high voltage generating device, an insulated component for fixation, a mobile device, the optical electric field transducer, a high voltage optical fiber, a photoelectric conversion and output unit and a logic judgment unit. The test apparatus disclosed by the invention has the advantages that: the test apparatus emphatically solves the difficulty in deficient electrical test means for insulation performance of a composite insulator in a laboratory, is applicable to any test work that needs to acquire field intensity distribution in an electrical test. By testing changes of a space electric field of a composite insulator via the test apparatus, strengths and weaknesses as well as a general faulty position of a rod core in the composite insulator can be acquired directly, the test means of the composite insulator is enriched, and technical support for screening the composite insulator with an internal defect in advance is provided.
Description
technical field [0001] The invention relates to the field of electrical performance testing of electric power equipment. Specifically, it is a composite insulator laboratory testing device based on an optical electric field sensor. Background technique [0002] In the current electrical performance testing methods of composite insulators, high voltage test methods such as withstand voltage, power frequency flashover test, power frequency wet flashover test, power frequency pollution flashover test, lightning impulse flashover test, and steep wave impact test are generally used. . [0003] These test methods have a long test cycle for a single insulator, and the test time for each insulator is as long as 10 hours. When the number of insulator samples to be tested is large, it is difficult for a single high-voltage test equipment to meet the test requirements. According to the summary of the field test, when the internal rod core of the insulator has no defects, it can pass ...
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IPC IPC(8): G01R29/12
Inventor 陈智勇刘聪汉韦魏李恒灿
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD