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Automatic online detection device for RTU

A detection device and automatic technology, applied in the direction of measuring devices, measuring electrical variables, instruments, etc.

Inactive Publication Date: 2010-06-02
ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a remote monitoring and calibration, which is convenient for RTU regular verification, and can not interrupt the power supply system to continuously monitor the power value during the verification, so as to replace the defects existing in the existing manual verification technology and deficiencies

Method used

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  • Automatic online detection device for RTU
  • Automatic online detection device for RTU

Examples

Experimental program
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Effect test

Embodiment

[0029] Example: First use the equipment operation loop conversion device on the online RTU detection device to connect a replacement RTU in parallel, and the replacement RTU is used to temporarily replace the online RTU detection and provide guarantee for the normal operation and monitoring of the power supply unit; The loop conversion device is similar to a multi-hole connector, which can be completed (including reverse) when receiving a signal to connect the wire connected to the online RTU with the replacement RTU, and make the detection device line and the online RTU work, and the detection device line and channel transmission equipment Connection, channel transmission equipment is used for long-distance transmission to serve as a bridge connecting RTU power distribution cabinets and test center centralized control stations; channel transmission equipment includes conventional network cables, switches, routers, firewalls, and servers. A high-stability standard source is set ...

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Abstract

The invention discloses an automatic online detection device for an RTU, which comprises the following parts jointed mutually: the RTU for replacement, a conversion device for an equipment operation circuit, a high-stability standard source, a three-phase standard meter, channel transmission equipment and a test centre control station. When testing the RTU weekly, the automatic online detection device for the RTU can test and control remotely without interrupting the operation of a normal power supply unit during testing; and simultaneously, the RTU for the replacement is put into the operation of a circuit so as to ensure the continuity of the data monitoring of a power supply unit during detecting. In addition, the system also has a self-protection function so as to automatically diagnose the error ratio of the working state of hardware in each detecting link, automatically recover the original working state of the RTU to be detected when an irreversible working procedure fault or an abnormity is found, isolate the automatic online detection device of the RTU, automatically remove a validation program, and start an alarm mode to inform a system operator of removing the fault.

Description

Technical field [0001] The invention relates to an online detection device, in particular to an RTU automatic online detection device used in a digital substation. Background technique [0002] In recent years, with the continuous development of electrical measurement technology, intelligent measurement equipment in digital substations has been continuously applied to power measurement technology. RTU is a typical substitute for this kind of products, and it has been widely used in the monitoring system of digital substations. It is the most effective, powerful, optimized, energy-saving, and most promising modern monitoring product for intelligent monitoring. At the same time, it is also an indispensable front-end equipment for information network platforms, and its application marks the beginning of a new era of cutting-edge power test technology. However, the RTU used in digital substations has also brought us a new problem, that is, "the traceability of the cycle value is [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/00
Inventor 刘荣
Owner ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD
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