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Device and method suitable for measuring power frequency voltage of cable T-shaped joint

A technology of power frequency voltage and cable joints, applied in the direction of measuring device, measuring current/voltage, measuring electricity, etc., can solve the problems of consuming a lot of manpower and material resources, unable to find cable joints in time, etc., to achieve the effect of solving manpower and material resources

Pending Publication Date: 2020-12-04
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, the measurement method in the prior art not only needs to consume a lot of manpower and material resources, but also cannot find defective cable joints in time

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  • Device and method suitable for measuring power frequency voltage of cable T-shaped joint
  • Device and method suitable for measuring power frequency voltage of cable T-shaped joint
  • Device and method suitable for measuring power frequency voltage of cable T-shaped joint

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Embodiment Construction

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0040] The purpose of the present invention is to provide a device and method suitable for measuring the power frequency voltage of cable T-shaped joints, so as to be able to measure the cable joints timely and accurately while saving manpower and material resources.

[0041] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction wit...

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Abstract

The invention relates to a device and a method suitable for power frequency voltage measurement of a cable T-shaped joint. The measuring device comprises a plug measuring module and a voltage determining module. The plug measuring module comprises a measuring resistor and a metal cavity; a metal block is cut on an inner cavity body of the metal cavity, and the metal block is pasted to the cuttingposition to serve as a metal sensing piece; and the voltage determining module is used for determining the power frequency voltage of the cable joint according to the voltage signals at two ends of the measuring resistor. According to the measuring device and method provided by the invention, the power frequency voltage of the measured cable joint can be determined in real time by acquiring the voltage signal of the measuring resistor, so that the problems in the prior art that a lot of manpower and material resources need to be consumed and a defective cable joint cannot be found in time canbe solved.

Description

technical field [0001] The invention relates to the technical field of power frequency voltage measurement, in particular to a device and method suitable for power frequency voltage measurement of cable T-shaped joints. Background technique [0002] With the vigorous development of my country's electric power construction, the high and low voltage lines of cities, industrial mines and national defense construction are gradually becoming cables, and the growth of power cable lines is very rapid. Therefore, it is an important task to ensure the safe operation of the power cable, timely and correct troubleshooting, and rapid restoration of power supply. As a terminal device, the cable joint is connected between the cable and the electrical isolation layer of the transformer, switch and other equipment, and is an important part of the power cable. At the same time, since the metal sheath of the main body is stripped at the cable fracture, the electric field distribution inside ...

Claims

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Application Information

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IPC IPC(8): G01R19/00G01R31/12
CPCG01R19/0084G01R31/1272
Inventor 吴铮熊俊张如昕廖磊伍铭妍杜钢金文佩徐阳杜乐
Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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