Cable reel

A cable and reel technology, which is applied in the field of auxiliary tools in substations, can solve the problems of complicated cable length requirements, easy connection to wrong jacks, etc., and achieves the effect of simplifying power connection work, reducing error rate, and circuit safety and stability.

Pending Publication Date: 2018-05-18
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a cable reel to solve the technical problems in the prior art that the cable length requirements for debugging and testing are complicated and the wiring is easy to connect to the wrong jack

Method used

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specific Embodiment approach

[0040] Further, see Figure 1 to Figure 4 , as a specific embodiment of the cable reel 100 provided by the present invention, the apex where the triangular frame body 21 is connected to the first support rod 22 is provided with a fourth support rod 27 whose length direction is upward and perpendicular to the first support rod 22 , the fourth support rod 27 is away from the end portion of the first support rod 22 to extend to the length direction of the support shaft 1 and form the handle 25 above the support shaft 1, and the handle 25 is set above the support shaft 1, which can be easily transported Cable reel 100, and when retrieving the cable 3, lift the cable reel 100 with one hand, and turn the handle 112 with the other hand, so that the work of retrieving the cable 3 is easier.

[0041] Further, see Figure 1 to Figure 3 , as a specific embodiment of the cable reel 100 provided by the present invention, the first turntable 11 is provided with a switch for controlling the...

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Abstract

The invention provides a cable reel, and belongs to the field of transformer substation auxiliary tools. The cable reel comprises a supporting shaft and further comprises a first rotary disc and a second rotary disc which are arranged at the two ends of the supporting shaft correspondingly. A cable for testing is wound around the supporting shaft and is located between the first rotary disc and the second rotary disc. The first rotary disc is at least provided with four testing inserting holes used for being connected with a testing instrument. One ends of core wires of the cable are connectedwith the testing inserting holes in a one-to-one correspondence manner, and the other end of the cable is used for being connected with to-be-tested power utilization equipment. According to the provided cable reel, one end of the cable is electrically connected with the corresponding testing inserting holes, the cable is wound around the supporting shaft, and therefore the requirement for different cable lengths in the differential protection test can be met; and the core wires of the cable are electrically connected with the one-to-one correspondence testing inserting holes, the wiring error rate is reduced, the circuit connecting stability is improved, and smooth proceeding of the differential protection test is guaranteed.

Description

technical field [0001] The invention belongs to the field of substation auxiliary tools, and more specifically relates to a cable reel. Background technique [0002] At present, the multi-purpose merging unit of the smart substation converts the CT secondary current into an optical signal at each interval and sends it to the protection device through an optical fiber, in order to verify the correctness of the current secondary wiring of the merging unit and the configuration of the device (the merging unit can configure the current polarity internally). To be specific, it is necessary to add secondary current at each interval at the same time, and check the current vector on the protection device. [0003] Differential protection of smart substations, including main transformer protection, busbar protection, etc., during commissioning and testing, the distance between the equipment area and the protection room is relatively long, and a long test cable is required to test the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H75/18B65H75/14B65H75/40B65H75/44
CPCB65H75/14B65H75/185B65H75/406B65H75/4492B65H2701/34
Inventor 狄子辉叶红兵段珺王文宾
Owner STATE GRID CORP OF CHINA
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