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On-line monitoring system for capacitor type equipment dielectricless

A technology of capacitive equipment and dielectric loss, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of difficult to meet the needs of online monitoring, long sampling signal lines, inconvenient connection of signal lines, etc. Effects of communication problems

Inactive Publication Date: 2006-06-28
XIDIAN UNIV
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  • Abstract
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Problems solved by technology

However, in practical applications, since there are many capacitive devices on site and they are distributed in different locations, it is necessary to use a long sampling signal line to introduce signals between devices that are far apart into the microcontroller, which makes the connection of signal lines difficult. Very inconvenient
Moreover, the existing technology cannot realize the measurement of the dielectric loss angle difference between multiple (more than 2) capacitive devices at the same time
It is also not possible to store measurement data
Therefore, the existing technology is difficult to meet the needs of online monitoring

Method used

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  • On-line monitoring system for capacitor type equipment dielectricless
  • On-line monitoring system for capacitor type equipment dielectricless
  • On-line monitoring system for capacitor type equipment dielectricless

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Embodiment Construction

[0026] Referring to the above-mentioned accompanying drawings, specific embodiments of the present invention will be described in detail.

[0027] like figure 1 As shown, within the dotted line box is the system component of the present invention, including a tester, a central computer and a current sampling circuit. There may be multiple (more than 2) testers and current sampling circuits. The current sampling circuit is connected with the capacitive equipment, the signal drawn from the current sampling circuit is connected with the tester, and the current sampling signal is the access signal of the tester. The tester is interconnected with the central computer through GPRS wireless network, GPRS server and Internet. The double arrows in the figure indicate that there is bidirectional data transmission. The tester receives GPS signals from satellites wirelessly. The dotted single arrow line in the figure indicates receiving wireless GPS signals. Only capacitive device 1 ...

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Abstract

An on-line monitoring system of capacity device media loss consists of tester being connected to central computer through radio network, server and Internet network for realizing signal filtering, signal quantization, signal storage and signal retransmission; central computer for carrying out calculation, storage and analysis of collected data; current sampling circuit connected to capacity device and said tester for leading the sampling signal to tester.

Description

technical field [0001] The invention belongs to the field of electrical performance monitoring, and relates to a dielectric loss detection device for capacitive equipment, in particular to an on-line monitoring system for dielectric loss of capacitive equipment, which detects the tested equipment by online measuring the dielectric loss angle difference between capacitive equipment the dielectric loss. Background technique [0002] The dielectric loss angle can reflect the insulation performance of high-voltage electrical equipment in power networks such as power capacitors, capacitive bushings, capacitive current transformers, and capacitive voltage transformers. By measuring the dielectric loss angle difference between multiple capacitive devices, the relative dielectric loss and insulation conditions between the capacitive devices can be detected. In the article "Research on Insulation and Live Test System for Capacitive Equipment" (Lin Weiping, New Technology Management ...

Claims

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Application Information

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IPC IPC(8): G01R31/00
Inventor 王保保毛晋生刘志强董焰民蒋宏旭
Owner XIDIAN UNIV
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