Inter-phase short circuit prevention tool and system for uninterrupted operation of distribution network

A technology of interphase short circuit and operation, applied in the direction of overhead line/cable equipment, etc., can solve the problem of inconvenience to carry, and achieve the effect of simple structure, good insulation performance and convenient installation.
CN112542801AInactive Publication Date: 2021-03-23STATE GRID SHANDONG ELECTRIC POWER +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
STATE GRID SHANDONG ELECTRIC POWER
Publication Date
2021-03-23
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses an inter-phase short circuit prevention tool and system for uninterrupted operation of a distribution network, belongs to the field of power cables, and aims to achieve synchronous movement of cables of different phases by using a synchronous movement direction method for the cables of different phases, avoid inter-phase short circuits between the cables and ensure smooth live-line operation. The device comprises an insulating rod; a first area on the insulating rod is connected with a first connecting mechanism; a second area on the insulating rod is connected with a second connecting mechanism; a third area on the insulating rod is connected with a third connecting mechanism; the second area is located between the first area and the third area; and the distance between the adjacent areas is greater than or equal to an inter-phase short-circuit safety distance.
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Description

technical field

[0001] The invention belongs to the field of power cables, and in particular relates to a tool and system for preventing short-circuit between phases for distribution network non-stop operation. Background technique

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] There are two types of phase-to-phase short circuits, two-phase short circuit and three-phase short circuit. The "phase" here refers to the three-phase symmetrical AC power supply, which is a power system composed of three single-phase AC power supplies. The power supply method adopted in our country is called three-phase four-wire AC power supply, and the windings of the three-phase generator are connected in star form. The first end of each winding is called the terminal line, and the voltage between the terminal lines is called the line voltage. The ends of the windings are connected toge...

Claims

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