A Method for Reducing Fault Trip Rate of 10kV Line

A line fault and tripping rate technology, applied in overhead lines/cable equipment, animal husbandry, animal repellent, etc., can solve the problems of expanding the scope of accidents, power failure losses, etc., to reduce the fault tripping rate, reduce the occurrence rate, improve The effect of troubleshooting efficiency

Active Publication Date: 2021-09-07
STATE GRID HEBEI ELECTRIC POWER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, most of the 10kV distribution network lines are radial. When a fault occurs on the line, if the circuit breaker in this section refuses to operate due to an abnormality, the fault will be isolated by tripping the circuit breaker at the upper level, resulting in a leapfrog tripping accident, expanding the scope of the accident, and causing more damage. many power outage losses

Method used

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  • A Method for Reducing Fault Trip Rate of 10kV Line
  • A Method for Reducing Fault Trip Rate of 10kV Line
  • A Method for Reducing Fault Trip Rate of 10kV Line

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Embodiment Construction

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way serves as any limitation of the application, its application or uses. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0037] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, a...

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Abstract

The invention discloses a method for reducing the fault tripping rate of a 10kV line. Bird repellents are installed in areas where birds build nests to prevent bird damage; In the present invention, a bird repellent is added to the pole with many cross-arms, such as the corner pole of the 10kV line, the pole with isolating switch installed, and the T-connector pole of the branch line, so as to prevent birds from building nests and reduce tripping faults caused by bird damage; When a skipping trip accident occurs, an overall identification method after the accident is proposed, which can accurately and effectively determine the cause of the skipping accident and improve the efficiency of on-site investigation; the present invention adopts the method of combining prevention and control of bird damage and skipping tripping, It not only reduces the occurrence rate of tripping accidents, but also improves the investigation rate of leapfrog tripping, effectively reducing the tripping rate of 10kV line faults.

Description

technical field [0001] The invention relates to a method for reducing the fault tripping rate of a 10kV line, belonging to the technical field of power distribution line operation and maintenance. Background technique [0002] The 10KV distribution line is an important part of the power system. During construction and operation, the most critical task is to improve the stability of operation. [0003] In spring, the number of fault trips increased significantly, and most of the fault trips were caused by bird damage. Spring is the season for bird breeding, and pole towers have also become the choice for birds to build nests. Bird nests built with dry branches, It will not cause line accidents in sunny weather, but in rainy weather, tree branches touching the wires will cause grounding or short-circuit faults. In windy weather, if the bird's nest is blown away by the strong wind, the metal wires in the branches or the bird's nest will fall on the wires, causing grounding or ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G1/02A01M29/08A01M29/18A01M29/32
CPCA01M29/08A01M29/18A01M29/32H02G1/02
Inventor 赵治博刘飞赵均良李明张晓君邢健健周杰
Owner STATE GRID HEBEI ELECTRIC POWER CO LTD
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