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A method for judging abnormal de-looping during loop-closing process of 10kv distribution network

An abnormal and loop-breaking technology, applied in the direction of electrical components, circuit devices, information technology support systems, etc., can solve the problems of abnormal tripping of column station switches and inability to judge whether there is a contact switch tripping on the line, and achieve the effect of rapid determination

Active Publication Date: 2022-08-02
HUANGSHAN POWER SUPPLY COMPANY OF STATE GRID ANHUI ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a method for judging the abnormal disconnection of the 10KV distribution network during the loop closing process, which solves the problem of abnormal tripping of the pole station switch during normal loop closing. Due to the limitations of the current structure, The problem that personnel cannot judge whether there is a phenomenon that the contact switch trips in the line

Method used

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Embodiment Construction

[0013] The technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0014] A method for judging abnormal de-looping in a 10KV distribution network loop-closing process, comprising the following steps:

[0015] First define the two substations at both ends of the loop to be closed as substation A and substation B, close the hot standby 10KV tie switch on the loop to be closed, and then check the active power on the outgoing switches of substation A and substation B through the SCADA system. If the active power of the outgoing switch of one substation is displayed as a negative value, and...

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PUM

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Abstract

The invention discloses a method for judging the abnormal unwinding of the 10KV distribution network during the ring closing process, which can effectively solve the problem that the abnormal tripping of the column station switch may occur during the normal ring closing. Due to the limitation of the current structure, personnel cannot judge the line Whether there is a problem of the phenomenon that the tie switch is tripped.

Description

technical field [0001] The invention relates to a method for judging the abnormal ring-opening process in the ring-closing process of a 10KV distribution network. Background technique [0002] A tie switch is installed between the 10KV distribution lines between the two 10KV distribution stations to realize the integration and de-ring work of the distribution network and realize the transfer of the load. During maintenance, the load will not be switched off without power supply; during normal loop closure, abnormal tripping of the column switch may occur. Due to the limitation of the current structure, personnel cannot judge whether there is a tripping of the tie switch in the line. SUMMARY OF THE INVENTION [0003] (1) Technical problems solved [0004] Aiming at the deficiencies of the prior art, the present invention provides a method for judging the abnormal unwinding of the 10KV distribution network during the ring closing process, so as to solve the problem that the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J13/00
CPCH02J13/00001H02J13/00007H02J13/00034H02J13/00036Y04S10/16Y04S10/40Y04S40/121
Inventor 王文林凌永标宋浩杰罗志丰程金松
Owner HUANGSHAN POWER SUPPLY COMPANY OF STATE GRID ANHUI ELECTRIC POWER