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Control loop of automatic monitoring of ground resistor

An automatic monitoring and control loop technology, applied in the direction of grounding resistance measurement, can solve the problems of increasing labor costs, affecting work efficiency, spending a lot of time and money, and achieving the effect of improving the level of automatic measurement technology

Inactive Publication Date: 2013-06-19
XIAN GUANGRONG ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Reliable grounding of grounding resistance is of great significance to the safety of power systems. At present, the measurement of grounding resistance mainly relies on manual measurement. It takes a lot of time and money to make a measurement, which seriously affects work efficiency and increases labor costs.

Method used

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  • Control loop of automatic monitoring of ground resistor

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Embodiment Construction

[0009] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0010] see figure 1 , the present invention comprises sequentially connected two-way shaping filter circuit 4, amplifying circuit 3, A / D conversion circuit 2, two-way A / D conversion circuit 2 is connected with controller 1 respectively, and controller 1 is connected with clock circuit 6, display module 5. The controller 1 is connected with the upper computer, and the controller 1 is connected with an alarm circuit.

[0011] The above-mentioned controller 1 is connected with the upper computer through a wireless transmission module or an RS485 interface.

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Abstract

The invention relates to a control loop of automatic monitoring of a ground resistor. The ground resistor reliably has great significance to the safety of a power system. Currently, measuring of the ground resistor mainly depends on manual measuring, a measurement needs a great amount of time and money, working efficiency is seriously affected, and human cost is increased. The control loop comprises two shaping filtering circuits, two amplifying circuits and two A / D switching circuits which are sequentially connected. The two A / D switching circuits are respectively connected with a controller, and the controller is connected with a clock circuit and a display module. The controller is connected with an upper computer, and the controller is connected with an alarm circuit. The control loop of automatic monitoring of the ground resistor can automatically measure the ground resistor, the measuring results of a plurality of terminals are automatically uploaded through a network, and the automatic measuring technology level of the ground resistor is improved.

Description

technical field [0001] The invention relates to a control loop for automatic monitoring of grounding resistance. Background technique [0002] Reliable grounding of grounding resistance is of great significance to the safety of power systems. At present, the measurement of grounding resistance mainly relies on manual measurement. It takes a lot of time and money to perform a measurement, which seriously affects work efficiency and increases labor costs. Contents of the invention [0003] The technical problem solved by the present invention is to provide a control circuit for automatic monitoring of grounding resistance with simple and reasonable circuit structure and improved automatic measurement level of grounding resistance. [0004] For solving above-mentioned technical problem, the technical scheme that the present invention takes: [0005] A control circuit for automatic monitoring of grounding resistance, which is special in that it includes two channels of shapin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/20
Inventor 张弘
Owner XIAN GUANGRONG ELECTRICAL