Transformer test bar

A technology of test rods and transformers, applied in instruments, parts of electrical measuring instruments, measuring devices, etc., can solve problems such as low work efficiency and poor safety, and achieve problems such as easy winding, improving work efficiency, and eliminating high-altitude operations. Effect

Active Publication Date: 2018-01-09
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 transformer test rod to solve the technical problems in the prior art that technicians need to climb a height for wiring test, poor safety and low work efficiency

Method used

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Embodiment approach

[0033] Further, see figure 1 As shown, as a specific embodiment of the transformer test rod provided by the present invention, the wire 8 is located inside the operating rod 1 .

[0034] Considering the influence of the weight of the long wire 8, the operating rod 1 is easily deformed or shaken when it is lifted up. In addition, the wire 8 is easy to swing under the action of wind. If it is not careful, it may cause the operating rod 1 to touch the adjacent live spacer equipment, causing serious damage to the on-site workers. Therefore, the wire 8 is placed inside the telescopic operating rod 1 to realize the unique design of the built-in wire, which can effectively improve the safety of the tool when used.

[0035] Further, see figure 1 As shown, as a specific embodiment of the transformer test rod provided by the present invention, the wire clamp 6 includes a connecting rod 6-1 connected at one end to the top end of the operating rod 1, and a connecting rod 6-1 connected to...

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PUM

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Abstract

The invention provides a transformer test bar and belongs to the field of transformer test tools. The transformer test bar comprises a telescopic operation rod, a cable clamp used for tightly clampingto-be-tested equipment and located at the top of the operation rod and an automatic take-up and payoff device located at the bottom of the operation rod, a lead is wound on the automatic take-up andpayoff device, and one end of the lead is connected with a conductor pull wire arranged in the cable clamp. By the arrangement, working at heights can be avoided, a tester can complete wire dissembling and assembling work through operation on the ground, convenience in use is achieved, working efficiency is improved, and the transformer test bar is safer.

Description

technical field [0001] The invention belongs to the technical field of transformer test tools, and more specifically relates to a transformer test rod. Background technique [0002] DL / T 727—2000 "Guidelines for Transformer Operation and Maintenance" and "110 (66) kV ~ 500kV Transformer Maintenance Specifications" issued by the State Grid Corporation stipulate that the polarity relationship must be checked before the transformer is put into production and after maintenance. Ratio test and volt-ampere characteristic test. In the transformation, expansion or infrastructure construction of the substation, the change of the secondary circuit of the transformer not only needs to check the original polarity before dismantling, but also the integral transformer test must be done after the relevant circuit is restored to ensure that the transformer is The polarity of the wiring with the secondary winding is correct to prevent misoperation or refusal of directional protection, there...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/02G01R1/02
Inventor 刘喆崔宇唐凡秘吉喆冉然侯骁季冰芦佳硕伍艳孟睿铮王达飞张毅静葛嫚李琳李世延
Owner STATE GRID CORP OF CHINA
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