A current transformer test wiring operating lever

Abstract

The invention relates to the current transformer experiment technical field, and discloses a current transformer experiment wiring operating lever comprising a telescopic insulation rod and a hook fixed on the top of the insulation rod; the hook comprises a column and a downward right angle crook fixed on the upper inlet; the column and the right angle crook are respectively made of steel material with a round cross section. The current transformer experiment wiring operating lever is simple in structure, easy to operate, can effectively improve the current transformer experiment wiring efficiency, thus ensuring wiring quality, and effectively reducing labor working intensity.

Description

technical field [0001] The invention relates to the technical field of current transformer testing. Background technique [0002] With the development of the economy and the increase of electricity consumption, the test work of the facilities and equipment in the power supply system is becoming more and more heavy. In substation maintenance, the number of current transformer tests is the largest, almost reaching 250 times in a year for a team. Therefore, it is of great significance to improve the test efficiency of current transformers. [0003] After analysis, it is found that the test wiring step takes the most time in the current transformer test operation, with an average time of 10-20 minutes. Due to the high height of the current transformer, the conventionally equipped ladder cannot reach it, and the operator cannot directly connect the wires, so the hanging rod must be used. The hanging rod is mainly composed of an insulating rod and a hook arranged at one end the...

AI Technical Summary

Problems solved by technology

[0004] 1. When the insulation rod is lengthened, it needs to be spliced ​​with another extension rod, and it is usually fixed by screw connection. It takes a long time to align and screw the two rods, accounting for more than 60% of the operation time of the hanging rod wiring;

[0005] 2. The shape of the hook is unreasonable. The hook is semi-circular and made of sheet steel. The position and inclination angle of the hook during the wiring operation of the hanging rod will cause great differences in contact resistance, which will affect the accuracy of the current transformer test. , it is necessary to adjust the inclination angle of the hook several times to make the contact resistance small, and it cannot exceed the specified maximum value, which will affect the wiring efficiency;

[0006] 3. The anti-detachment of the hook is controlled by the annealed copper wire set on it. However, when the hook is removed, the annealed copper wire is prone to hook the bolt. The probability of this phenomenon is 20% after testing, which hinders the removal of the hook and affects the efficiency.

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