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Test method for lightning arresters of oscillating device

A technology of an oscillation device and a testing method, which is applied to measurement devices, testing dielectric strength, instruments, etc., can solve the problems of low work efficiency and complicated wiring operation of high-voltage pressurized lines, so as to improve work efficiency, facilitate on-site test work, The effect of improving safety

Active Publication Date: 2018-03-27
EXAMING & EXPERIMENTAL CENT OF ULTRAHIGH VOLTAGE POWER TRANSMISSION COMPANY CHINA SOUTHEN POWER GRID
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a method for testing the lightning arrester of the oscillation device, which solves the technical problems of complicated wiring operation of the high-voltage pressurized line and low work efficiency during the testing process

Method used

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  • Test method for lightning arresters of oscillating device
  • Test method for lightning arresters of oscillating device
  • Test method for lightning arresters of oscillating device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as Figure 1 to Figure 5 As shown, the top of the insulating rod is provided with a clip, and the clip includes type hook 3, the The head at one end of the type hook 3 is provided with a round table 8, and the rear of the round table 8 is provided with a wire slot 1, and a V-shaped hook 2 is set near the wire slot 1; The end of type hook 3 other ends is provided with pulley groove 5, is provided with rolling pulley 4 in the pulley groove 5. Type hook 3, V-type hook 2 and mixed wheel groove 5 are integrally formed to form a shape similar to a claw hammer. The middle part of the rolling pulley 4 is provided with a groove, and the material of the rolling pulley 4 is polyethylene plastic.

[0033] One side of the pulley groove 5 is hinged with a side skirt 6 that can be opened and closed, and the side skirt 6 is hinged with a locking connecting piece 11. The middle part of the locking connecting piece 11 is provided with a locking groove 7, and the locking groov...

Embodiment 2

[0041] The lightning arrester of the zero-crossing oscillation device of the DC field circuit breaker of the converter station is installed on the oscillation device platform, and most of them are arranged in parallel with dozens of arresters. The test method for testing with the help of insulating rods, such as Image 6 shown. Put the insulating rod upright on the platform, and tie the high-voltage pressurized wire to the hook on the top of the insulating rod. This wiring method can greatly improve the test efficiency. Remove the insulating rod and hang it on the upper flange of another lightning arrester (the lower flanges of the lightning arrester are connected together). During the test, it should be noted that every time the wiring is changed, in addition to discharging and grounding the straight high generator, the adjacent The arrester is discharged to prevent the residual charge from hurting people.

[0042] Specific test items and steps:

[0043] 1. Insulation resi...

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Abstract

The invention discloses a test method for the lightning arresters of an oscillating device. According to the test method, a first insulating rod is fixedly erected on a direct current circuit breakeroscillating device platform; the first insulating rod is connected with a second insulating rod through a high voltage applying line; the second insulating rod is connected with the high voltage applying line, so that insulation resistance testing and leakage current testing under 1mA-direct current voltage and 75% U1mA- direct current voltage are performed on a lightning arrester, and a dischargecounter is checked; and after the measurement of the lightning arrester is finished, it only needs to take off the second insulating rod and hang it on another lightning arrester, so that the anotherlightning arrester can be measured. According to the test method of the invention, the selection of different angels and heights of high voltage test wires are realized according to the lightning arresters of the platform at different positions, and the problem of difficulties in high voltage lead arrangement during the high-voltage direct current leakage measurement of the lightning arrester group of the direct current circuit breaker platform can be solved. The test method has the advantages of convenient and fast operation and greatly improved efficiency.

Description

technical field [0001] The invention belongs to the technical field of measuring the lightning arrester group of the oscillation platform of the DC field circuit breaker, and in particular relates to a method for testing the lightning arrester of the oscillation device. Background technique [0002] Metal oxide surge arresters are important equipment in converter stations. They are important protective devices used to protect the insulation of power transmission and transformation equipment from overvoltage hazards, and play an indispensable role in the safe and stable operation of power systems. The preventive test items usually carried out by metal oxide arresters usually include the body and base insulation resistance test, the leakage current test under DC 1mA voltage U1mA and 0.75U1mA, and checking the operation of the discharge counter. These test items can effectively check the condition of the arrester and judge Lightning arrester performance. During the on-site tes...

Claims

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Application Information

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IPC IPC(8): G01R31/02G01R31/12
CPCG01R31/1227G01R31/50
Inventor 潘凯金辉吴德贯夏辉李红元邵成林
Owner EXAMING & EXPERIMENTAL CENT OF ULTRAHIGH VOLTAGE POWER TRANSMISSION COMPANY CHINA SOUTHEN POWER GRID
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