Line change relationship identification system

A technology of relationship identification and relationship, which is applied in the direction of AC network circuits, electrical components, circuit devices, etc., can solve problems such as ineffective identification, and achieve the effect of improving the qualified rate of line loss in the same period

Pending Publication Date: 2020-04-10
SONGYUAN POWER SUPPLY COMPANY OF STATE GRID JILINSHENG ELECTRIC POWER SUPPLY +1
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Problems solved by technology

[0003] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a line-change relationship identification system, which solves the problem that the line-change relationship cannot be effectively identified in the prior art

Method used

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Embodiment

[0016] Line transformer relationship identification system, including line transformer relationship identification master station, line transformer relationship analysis machine, and line transformer relationship identification terminal; line transformer relationship identification master station notifies the line transformer relationship identification terminal on the low-voltage side of the distribution transformer to send ultra-low frequency carrier signals; substation The line change relationship analysis machine at the head end of the line detects the characteristic signal; the line change relationship analysis machine uploads the signal characteristics to the line change relationship identification master station; the line change relationship identification master station determines the line ownership of the transformer through comprehensive comparison.

[0017] The line change relationship analysis machine includes a line change relationship analysis machine CT and a line...

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Abstract

The invention relates to a line change relationship identification system, which comprises a line change relationship identification master station, a line change relationship analyzer and a line change relationship identification terminal, the line change relationship identification master station notifies a line change relationship identification terminal on the low-voltage side of the distribution transformer to send an ultralow-frequency carrier signal; the characteristic signal is detected by a line change relation analyzer at the head end of the transformer substation line; the line change relationship analyzer uploads the signal characteristics to a line change relationship identification master station; and the line change relationship identification master station determines the line attribution of the transformer through comprehensive comparison. According to the invention, real-time online identification of the affiliation relationship between the transformer and the line isrealized, the line change relationship change record is dynamically generated, real-time line change relationship data is provided for other systems, and the improvement of the line loss qualification rate in the same period is facilitated.

Description

technical field [0001] The invention relates to a medium-voltage power line carrier technology to realize a system for identifying the ownership relationship between a transformer and a line on a 10kV distribution line, in particular to a line-transformer relationship identification system, which is suitable for cable lines, overhead lines and hybrid lines. Background technique [0002] At present, during the operation of the distribution network, the ownership relationship between the transformer and the line is unclear, and the new line-to-line relationship cannot be obtained in time after the operation mode changes. At the same time, the pressure of the 10kV simultaneous line loss assessment of the provincial and prefectural companies is increasing day by day. The traditional manual verification method is time-consuming and labor-intensive, and there is no effective means of identifying the line-change relationship without power failure. Contents of the invention [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
CPCH02J3/00
Inventor 赵云良张斌汪志路韩富臣刘国强梁家敖文弟
Owner SONGYUAN POWER SUPPLY COMPANY OF STATE GRID JILINSHENG ELECTRIC POWER SUPPLY
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