Intelligent distribution network secondary system phase sequence automatic check apparatus

A secondary system and phase sequence technology, applied in the direction of phase sequence/synchronous indication, etc., can solve the problems of difficult acceptance work and low work efficiency, and achieve the effect of simplifying operation steps and improving acceptance efficiency

Inactive Publication Date: 2017-04-26
STATE GRID CORP OF CHINA +2
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an automatic phase sequence verification device for the secondary system of intelligent distribution network to solve the problems of difficult acceptance and low work efficiency in view of the above-mentioned deficiencies in the prior art. high feature

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  • Intelligent distribution network secondary system phase sequence automatic check apparatus

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Embodiment Construction

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] Such as figure 1 As shown, it is a functional block diagram of the phase sequence automatic checking device of the secondary system of the intelligent distribution network of the present invention, an automatic phase sequence checking device of the secondary system of the intelligent distribution network, including a power supply device, a voltage transformer, a current transformer, an acquisition device, A / D conversion device, processor and display device; the voltage transformer is connected to the acquisition device, the voltage transformer is used to convert the voltage, and converts the three-phase voltage to be measured into a voltage signal that can be collected by the acquisition device; the current transformer and the acquisition device connection, the current transformer is used to convert the current, and convert the...

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Abstract

The invention discloses an intelligent distribution network secondary system phase sequence automatic check apparatus and relates to the technical field of power equipment. The intelligent distribution network secondary system phase sequence automatic check apparatus comprises a power supply apparatus, a voltage transformer, a current transformer, an acquisition apparatus, an A/D conversion apparatus, a processor and a display apparatus. After a distribution automation terminal is installed, when the phase sequence of phase wires is checked, phase wires to be detected of the voltage transformer, the current transformer and the automation terminal are connected, a lead-out wire of the acquisition apparatus is connected with the voltage transformer and the current transformer, after connection is completed, as long as the apparatus is started, three-phase current values, three-phase current phase values and voltage phase values of the phase wires to be detected of the automation terminal can be acquired, whether the phase sequence is correct can be determined by performing integrated determination according to acquired parameters, and thus phase check work of the automation terminal is completed. By use of the apparatus provided by the invention, the operation steps of check and acceptance are simplified, and the check and acceptance efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of electric power equipment, in particular to an automatic phase sequence checking device for a secondary system of an intelligent distribution network. Background technique [0002] With the continuous improvement of State Grid Corporation's requirements for the fine management level of distribution network, in order to improve the reliability of distribution network power supply and the professional management level of distribution network automation, the acceptance of newly installed distribution automation terminal devices is particularly important. After the on-site installation of the distribution automation terminal is completed, acceptance work such as secondary circuit inspection and telemetry data verification is required. Since the current transformers are all installed on the construction site, the current transformers have been installed and the secondary lines have been connected during accepta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/18
CPCG01R29/18
Inventor 刘楠牛卓博张玉涛邓洪怀华蕾
Owner STATE GRID CORP OF CHINA
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