High-voltage cable terminal shunt-type antitheft grounding and measuring device

A high-voltage cable and measuring device technology, which is applied in the direction of testing dielectric strength, indicating the existence of current/voltage, etc., can solve the problems of restricting the development of high-frequency partial discharge detection work, inconvenient high-frequency partial discharge detection, etc., to ensure the test effect. , avoid sliding, avoid the effect of ground wire theft

Active Publication Date: 2018-01-26
ELECTRIC POWER SCI & RES INST OF STATE GRID TIANJIN ELECTRIC POWER CO +2
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  • Abstract
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Problems solved by technology

Although the anti-theft effect is remarkable, the copper bar is directly connected to the tower material of the terminal tower, which is generally more than 6 meters away from the ground, which brings inconve

Method used

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  • High-voltage cable terminal shunt-type antitheft grounding and measuring device
  • High-voltage cable terminal shunt-type antitheft grounding and measuring device
  • High-voltage cable terminal shunt-type antitheft grounding and measuring device

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Example Embodiment

[0015] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0016] A shunt type anti-theft grounding and measuring device for high-voltage cable terminals, such as figure 1 As shown, it includes a cable terminal 1, a terminal tail tube 2, a grounded metal bracket 4, a spring-type anti-theft grounding strip and a shunt-type measuring hanging rod. The cable terminal 1 is installed on the upper end of the grounded metal bracket 4, and the terminal tail tube 2 is installed on the lower end of the grounded metal bracket 4 through a spring-type anti-theft grounding strip, and passes through the connection between the spring-type anti-theft grounding strip and the metal support 4 Bolt 3 is tightened.

[0017] The spring-type anti-theft ground connection piece is composed of an anti-theft grounding frame 6-1 and two ground connection pieces 6-2, such as figure 2 and image 3 As shown, one end of the two grounding...

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Abstract

The invention relates to a high-voltage cable terminal shunt-type antitheft grounding and measuring device, which is characterized in that the device comprises a cable terminal, a terminal tail pipe,a grounding metal support, a spring-type anti-theft grounding connection piece and a shunt-type measurement hanging rod. The cable terminal is mounted on the upper end of the grounding metal support;and the terminal tail pipe is mounted on the lower end of the grounding metal support through the spring-type anti-theft grounding connection piece. The spring-type anti-theft grounding connection piece is formed by an anti-theft grounding frame and two grounding connectors. One end of each of the two grounding connectors is connected with the anti-theft grounding frame through a spring hinge; theother ends of the two grounding connectors are superposed together; and the two grounding connectors are respectively provided with one metal hook. The shunt-type measurement hanging rod is formed byan insulation handle, a telescopic insulation rod, a hanging rod support frame, guide metal hooks, sensor limit rings, an electricity test alarm indicator and an electricity test contact point. The device provides convenience for partial discharge test, has electricity test and alarm functions in the test process and ensures safety of test personnel and normal operation of the cable terminal.

Description

technical field [0001] The invention belongs to the technical field of live detection of electric power cables, in particular to a shuntable anti-theft grounding and measuring device for high-voltage cable terminals. Background technique [0002] With the rapid expansion of the grid scale and the rapid growth of electricity demand, society has higher and higher requirements for the reliability of grid power supply. As an important content of condition-based maintenance, the comprehensive and in-depth application of power cable live detection technology can timely discover potential hidden dangers of equipment operation and avoid sudden failures, which is an important guarantee for the safe and stable operation of power equipment. As a typical test method, high-frequency partial discharge test has been widely carried out in the power system. However, in the test process, the signal needs to be extracted at the grounding lead of the cable terminal. At present, in order to pre...

Claims

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Application Information

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IPC IPC(8): G01R19/145G01R31/12
Inventor 李旭朱明正王浩鸣孟峥峥宋鹏先李季王荣亮
Owner ELECTRIC POWER SCI & RES INST OF STATE GRID TIANJIN ELECTRIC POWER CO
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