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Insulator driving device for high-voltage DC support insulator test device

A technology for supporting insulators and high-voltage direct current, applied in the direction of measuring devices, testing dielectric strength, instruments, etc., can solve the problems of test result deviation, stagnation, and inability to accurately grasp the characteristics of DC supporting insulators, and achieve the effect of accurate control

Active Publication Date: 2019-01-11
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the current research on the flashover characteristics of DC support insulators is still on the experimental research of individual DC support insulators, because the research on the flashover characteristics of DC support insulators needs to be carried out in a closed environment (because the test process Need vacuum protection or inert gas protection)
The test conditions of each test are different, which will bring deviation to the test results to a certain extent, and the characteristics of the DC support insulator cannot be accurately grasped through the test

Method used

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  • Insulator driving device for high-voltage DC support insulator test device

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Embodiment Construction

[0018] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0019] A specific embodiment of the insulator driving device for the high-voltage DC supporting insulator test device of the present invention. The flashover DC support insulator is withdrawn from the test power supply, so as not to affect the follow-up test of other DC support insulators in the airtight container, so as to achieve the purpose of testing a group of DC support insulators at the same time under the same environment, which is more accurate Accurately grasp the flashover characteristics of DC support insulators.

[0020] figure 1 shows a schematic structural diagram of this embodiment, in order to illustrate this embodiment more clearly, figure 1 It also shows a part of the airtight container of the high-voltage DC support insulator test device and the tested DC support insulator. It can be seen from the figure that the insulator driving ...

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Abstract

A high-voltage DC support insulator test apparatus, test system and test method. The high-voltage DC support insulator test apparatus comprises an enclosed test container (12), wherein the test container (12) is provided with a group of test seats (20) used for mounting a tested DC support insulator (101) and a common power supply apparatus (18) used for providing a test voltage to the tested DC support insulator (101). The test apparatus further comprises disconnection apparatuses (21, 27, 28, 29) corresponding to the test seats (20) and used for disconnecting the common power supply apparatus (18) and the corresponding tested DC support insulator (101) under set conditions. The characteristics of the DC support insulator (101) can be learnt more accurately by testing a group of DC support insulators (101) under the same conditions, thereby improving the accuracy of a test result of the DC support insulators (101).

Description

technical field [0001] The invention relates to a high-voltage direct current support insulator test device, in particular to an insulator drive device for a high-voltage direct current support insulator test device. Background technique [0002] Compared with AC transmission, HVDC has the advantages of strong transmission capacity, low line loss, no need for synchronous operation of AC on both sides, and small failure loss in long-distance transmission. It is the focus of future transmission line construction. However, the electric field has unidirectional stability under DC conditions, and the charge accumulation effect occurs in the insulating material, making its insulation and flashover characteristics very different from those under AC conditions, and the resulting breakdown or discharge consequences are more serious than those under AC conditions. Seriously, it will directly affect the reliability of DC transmission system. This effect is more significant for inner i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R1/00G01R31/00G01R31/12
CPCG01R31/00G01R31/12
Inventor 张福轩余军刘泽洪郭贤珊张进柴影辉钟建英张友鹏段晓辉王文博田浩李继承张柳丽孙英杰杜迎乾董祥渊
Owner STATE GRID CORP OF CHINA
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