Tower grounding resistance measurement apparatus without dismounting of grounding down lead, and measurement method thereof

A technology of grounding down conductors and grounding resistance, which is applied in the direction of grounding resistance measurement, etc., can solve the problem of low test efficiency, save time, save manpower and material resources, and improve work efficiency.

Inactive Publication Date: 2015-11-04
FUSHUN POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER SUPPLY +2
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a tower grounding resistance me

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  • Tower grounding resistance measurement apparatus without dismounting of grounding down lead, and measurement method thereof
  • Tower grounding resistance measurement apparatus without dismounting of grounding down lead, and measurement method thereof

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Embodiment Construction

[0023] In order to make the technical means, usage method and device structure realized by the present invention convenient and clear, it will be further elaborated in conjunction with the drawings.

[0024] Such as Figure 1-2 As shown, the control unit 1 is connected to the display screen 2, the keyboard 3, the printer 4, the power supply module 5 and the measurement protection circuit 6, the power supply module is connected to the inverter variable frequency power supply 11 and the current injection point 12 in turn, and the current injection point is connected to the current measurement circuit 8 and The tower foot; the measurement protection circuit 6 is connected to the voltage measurement circuit 7 and the current measurement circuit 8, the current measurement circuit is connected to the host sending module 9 and the host receiving module 10, the host sending module and the host receiving module are connected to the current sensor, and the current sensor is connected to ...

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Abstract

The invention relates to a tower grounding resistance measurement apparatus without dismounting of a grounding down lead, and a measurement method thereof. The structure of the apparatus is characterized in that a control unit is connected with a power supply module and a measurement protection circuit; the power supply module is connected with an inverted variable-frequency power supply and a current injection point; and he current injection point is connected with a current measurement circuit and a tower foot. The measurement protection circuit is connected with a voltage measurement circuit and a current measurement circuit; the current measurement circuit is connected with a host sending module and a host receiving module; the host sending module and the host receiving module are connected with a current sensor; and the current sensor is connected with tower feet. With the apparatus and method, the wiring difficulty of the test field can be reduced; the work efficiency can be improved; an advanced test means can be provided for the tower grounding resistance test work; and the heavy work of grounding down lead dismounting and cable arrangement work during the previous field testing can be substantially simplified.

Description

technical field [0001] The invention relates to a tower grounding resistance measuring device, in particular to a tower grounding resistance measuring device and a measuring method which does not remove the tower grounding down conductor and reduces the grounding electrode connections at each tower corner. The invention relates to a device for testing the grounding resistance of towers by obtaining real-time test current signals, which belongs to the field of electric power applications. Background technique [0002] The grounding resistance of the transmission line tower is a standard to measure whether the grounding of the tower is good. A small grounding resistance value can reduce the counter-attack tripping rate and improve the lightning resistance level of the tower, which has great practical significance for line lightning protection. [0003] The tower generally has 4 feet. In order to ensure that the grounding resistance of the tower meets the limit value required b...

Claims

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Application Information

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IPC IPC(8): G01R27/20
Inventor 李春和葛维春张宏宇王飞陈刚张运山胡亚青刘洪胜葛长鑫裴玉杰史冬鹏刘强罗钧李继东陈德刚肖天然
Owner FUSHUN POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER SUPPLY
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