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Insulator leakage current online monitoring device

A technology for monitoring devices and leakage currents, applied in the direction of using digital measurement technology for measurement, etc., can solve problems such as high cost, inaccuracy, and inconvenience

Inactive Publication Date: 2015-11-04
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, under normal temperature (ambient temperature), the leakage current of normal insulation generally does not exceed 100μA. When it is close to the operating temperature, the leakage current value generally does not exceed 1mA, but a monitoring device is required within this range, although there are also relevant regulations patents, but they have not been better applied due to reasons such as inconvenience, high cost, and inaccuracy

Method used

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  • Insulator leakage current online monitoring device
  • Insulator leakage current online monitoring device
  • Insulator leakage current online monitoring device

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0014] The present invention as figure 1 As shown, it includes: charged body 1, insulating support 2, insulator support part 3; the tail of insulator support part 3 is connected with a wire 5 connected to the ground electrode 4, and the wire 5 is connected with a Hall type current sensor 6, Hall The type current sensor 6 is connected to a monitoring device 8 through a signal line 7, and an antenna 10 is designed at the outer end of the monitoring device 8.

[0015] Such as figure 2 As shown, a conditioning circuit 15 and a terminal block 9 are designed in the monitoring device 8, and the terminal block 9 on the monitoring device 8 includes four parts: a current signal positive terminal 11, a current signal ground terminal 12, a power supply negative terminal 13, and a power supply positive terminal 14. , the conditioning circuit 15 includes a core...

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Abstract

An insulator leakage current online monitoring device comprises a charged body, an insulation pillar and an insulator pillar support portion. A tail of the insulator is connected to one lead which is connected to a grounding electrode. The lead is connected to a Hall-type current sensor. The Hall-type current sensor is connected to the monitoring device. One outer end of the monitoring device is designed with an apparatus antenna. A conditioning circuit and a terminal row are designed in the monitoring device. The terminal row of the monitoring device comprises a current signal positive terminal, a current signal grounding terminal, a power supply negative terminal and a power supply positive terminal. The conditioning circuit comprises a core processing unit and a short message module. The Hall sensor in the insulator leakage current online monitoring device possesses the following advantages that the structures are firm, linearity is good, an operating temperature is wide, environment resistance is high and so on. By using the device of the invention, cost can be reduced; high accuracy is achieved; usage is convenient so that popularization and application are obtained.

Description

technical field [0001] The invention relates to a monitoring device, in particular to an on-line monitoring device for insulator leakage current. Background technique [0002] At present, under normal temperature (ambient temperature), the leakage current of normal insulation generally does not exceed 100μA. When it is close to the operating temperature, the leakage current value generally does not exceed 1mA, but a monitoring device is required within this range, although there are also relevant regulations Patents, but they have not been better applied due to reasons such as inconvenience, high cost, and inaccuracy. Contents of the invention [0003] The purpose of the present invention is to provide an insulator leakage current on-line monitoring device which can accurately monitor the magnitude of the leakage current. [0004] To achieve the above object, the technical solution adopted in the present invention is: [0005] The present invention is an on-line monitori...

Claims

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Application Information

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IPC IPC(8): G01R19/25
Inventor 王冲鲁统贺王瀚正古守雨渐伟
Owner STATE GRID CORP OF CHINA
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