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Integrated line parameter insulation integrated testing device and method

A line parameter and test device technology, which is applied in the direction of measuring device, electric variable measurement, high resistance measurement, etc., can solve the problem of large risk factor of insulation resistance nuclear phase, unreduced risk of test equipment, and long test time of line parameters And other issues

Active Publication Date: 2020-02-14
SHANDONG ELECTRIC POWER TRANSMISSION & SUBSTATION ENG CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are many transmission line parameter test items, including the measurement of induced electricity, the measurement of nuclear phase and insulation resistance, the measurement of positive sequence and zero sequence capacitance and resistance. When parallel lines on the same tower are involved, the measurement of mutual inductance parameters is also involved. The longest time-consuming insulation resistance measurement and nuclear phase risk factor
[0004] The existing transmission line parameter test equipment still needs to use insulating rods to change the test line during the test process, which does not reduce the danger of the test personnel to the test test equipment in the process of insulation resistance measurement and phase verification under high induced voltage , and in order to reduce the danger to the test personnel during the line change process and operation process, the test time of line parameters is longer, and the efficiency and safety are low

Method used

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  • Integrated line parameter insulation integrated testing device and method
  • Integrated line parameter insulation integrated testing device and method
  • Integrated line parameter insulation integrated testing device and method

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Effect test

Embodiment 1

[0045] Such as Figure 1-Figure 5 As shown, the present invention provides an integrated test device for integrated line parameter insulation, including:

[0046] Insulation measurement unit 1, the input end of insulation measurement unit 1 is connected with the three-phase line to be tested, and insulation measurement unit 1 includes phase selection module 11, function selection module 12, several function modules 13, phase selection module 11 and three-phase line to be tested connected, for selecting the three-phase line to be measured, the input end of the function selection module 12 is connected with the output end of the phase selection module 11, and is used for selecting several function modules 13, and the input ends of several function modules 13 are connected with the function selection module 12 output connections.

[0047] An isolated grounding protection unit 2, the isolated grounding protection unit 2 includes an isolation module 21 and a grounding protection m...

Embodiment 2

[0068] Such as Figure 6 As shown, the present invention also provides an integrated test method for integrated line parameter insulation, which is realized by the integrated test device for integrated line parameter insulation in Embodiment 1 of the present invention, including:

[0069] S1, sequentially closing the first switch group, the second switch group, and the third switch, opening the first switch group, and measuring the induced voltage of the phase line to be tested; and / or,

[0070] S2, sequentially closing the first switch group, the second switch group, and the fourth switch group, disconnecting the first switch group, and performing the insulation and phase verification test of the phase line to be tested; and / or,

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Abstract

The invention provides an integrated line parameter insulation integrated testing device. The integrated line parameter insulation integrated testing device comprises an insulation measuring unit, anisolation grounding protection unit and line parameter testing equipment, wherein the input end of the insulation measuring unit is connected with a three-phase line to be tested; the insulation measuring unit comprises a phase selection module, a function selection module and a plurality of function modules; the isolation grounding protection unit comprises an isolation module and a grounding protection module; the input ends of the isolation module and the grounding protection module are connected with the three-phase line to be tested; and the input end of the line parameter testing equipment is connected with the output end of the isolation module. The invention further provides an integrated line parameter insulation integrated testing method. The isolation between the line to be tested and the testing equipment and testing personnel is effectively realized; and the personnel do not need to change the line in the insulation resistance measurement and phase verification processes,so that the testing time of line parameter testing is effectively shortened and the safety of testing is improved.

Description

technical field [0001] The invention relates to the technical field of transmission line parameter testing, in particular to an integrated testing device and method for line parameter insulation integration. Background technique [0002] With the development of transmission technology, the acquisition and testing of transmission line parameters play a very important role in the normal operation and maintenance of transmission lines. [0003] At present, there are many transmission line parameter test items, including the measurement of induced electricity, the measurement of nuclear phase and insulation resistance, the measurement of positive sequence and zero sequence capacitance and resistance. When parallel lines on the same tower are involved, the measurement of mutual inductance parameters is also involved. The longest time-consuming insulation resistance measurement and nuclear phase have a large risk factor. [0004] The existing transmission line parameter test equi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/02G01R29/18G01R25/00G01R15/14
CPCG01R15/14G01R25/00G01R27/025G01R29/18
Inventor 夏俊飞刘壮骆鹏林永祥刘德华王婧雯谭国梁徐传福李鑫王莉萍范孟乾张妍孙娇周卫东
Owner SHANDONG ELECTRIC POWER TRANSMISSION & SUBSTATION ENG CO