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Phase position check method of high voltage cable frogging interconnected system

A technology of cross-connection and high-voltage cables, which is applied to the phase angle between voltage and current, fault location, and measurement of electrical variables, etc., which can solve problems such as inconvenient cooperation of technicians

Active Publication Date: 2014-08-13
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a phase inspection method for a high-voltage cable cross-connection system, which aims to solve the inconvenience caused by the need for technicians to cooperate at the opposite end when performing phase inspection in the prior art

Method used

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  • Phase position check method of high voltage cable frogging interconnected system
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  • Phase position check method of high voltage cable frogging interconnected system

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Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0018] like Figure 4 As shown, the present invention is implemented in this way. A phase inspection method of a high-voltage cable cross-connection system includes: Step 1: The inspector performs wiring at the first section of the high-voltage cable; Step 2: The inspector goes to the No. 1 joint box pair of the high-voltage cable Phase inspection of the cross-connection system; Step 3: inspectors go to the No. 2 joint box of the high-voltage cable to check the phase of the cross-connection system; Step 4: Repeat the above steps until the phase inspection of all cross-connection systems is complete...

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Abstract

The invention discloses a phase position check method of a high voltage cable frogging interconnected system. The method includes the steps that first, a detection person performs wiring on the first segment of a high voltage cable; second, the detection person goes to a first connector box of the high voltage cable to check the phase position of the frogging interconnected system; third, the detection person goes to a second connector box of the high voltage cable to check the phase position of the frogging interconnected system; fourth, the steps are repeated till all the phase position check work of the frogging interconnected system is completed. According to the method, an existing phase position check method of the high voltage cable frogging interconnected system is improved, and in other words, under the condition that no person is located at the opposite end for cooperation with the detection person, the phase position check work can be completed fast and efficiently just through a common multimeter and simple wiring.

Description

technical field [0001] The invention relates to a voltage phase measuring device, in particular to a phase checking method of a high-voltage cable cross-connection system. Background technique [0002] Due to its excellent electrical properties, good heat resistance, and the advantages of convenient laying and accessories installation and no drop restrictions, high-voltage XLPE cables also consider the requirements of municipal planning and the main network frame of urban and development areas. Overhead lines are gradually being replaced by high voltage cables. [0003] Due to the high voltage level and large flow capacity, the high-voltage XLPE cables are all single-core cables. The relationship between the conductor of the single-core cable and the metal sheath is equivalent to the primary winding and the secondary winding of the transformer. When the cable conductor flows through the AC current, an induced voltage will be generated in the metal sheath, so the metal sheat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R25/00G01R31/08
Inventor 唐庆华张东斐陈荣满玉岩项添春周凤争王浩鸣朱晓辉田明辉
Owner STATE GRID CORP OF CHINA
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