Electrostatic protection circuit and wire stripper

Abstract

The invention discloses an electrostatic protection circuit and a wire stripper, and belongs to the technical field of power construction equipment. The electrostatic protection circuit is provided with a first input port and a second input port, is used for inputting external static electricity, and further comprises a front-end absorption circuit, an isolation power supply circuit and a rear-enddigital processing circuit, the front-end absorption circuit is used for absorbing external static electricity and converting the external static electricity into common-mode voltage; the isolation power supply circuit is used for isolating the converted common-mode voltage from an external output circuit; and the rear-end digital processing circuit is used for transmitting the converted common-mode voltage to an external output circuit. According to the invention, the electrostatic interference between the wire stripper and the overhead line, which is generated in the rotating process of thewire stripper, can be effectively discharged and isolated, so that the whole equipment can operate safely and stably.

Description

technical field [0001] The invention belongs to the technical field of electric power construction equipment, and in particular relates to an electrostatic protection circuit and a wire stripper. Background technique [0002] In order to improve the safety of overhead distribution lines in power systems, cross-linked polyethylene insulated conductors are now mostly used. When the distribution line is connected to the fire, it is often necessary to strip the insulation of the insulated wire and then install the clamp and the lead to complete the fire. The domestic live connection operation is a routine high-voltage live operation, which has gone through four technical stages of insulating gloves, insulating tools, insulating bucket trucks and robots. [0003] The intelligent stripping robot operation solves the problem that the safety of manual live work cannot be guaranteed. The operator only needs to control the operation robot on the ground to strip the insulation of the ...

AI Technical Summary

Problems solved by technology

[0006] As the first intelligent wire stripper on the market, it solves the problem that other wire strippers on the market need repeated debugging and cannot accurately guide the angle and position of the knife adjustment

But at the same time, because the electronic device (cutter head 301 and contact strip 204) is added to this wire stripper, in the actual working environment, there is friction between the metal and Teflon or the metal and the polyethylene wire sheath in the rotating body, which will produce Charge transfer; with the progress of friction, and the large gap between the metal and Teflon’s ability to bind electrons, the charge will slowly accumulate until the contact strip touches the core of the overhead line. At this time, the charges carried by each will be released instantaneously. The single board of the cable stripper causes electromagnetic radiation, which will interfere with the operation of the CPU of the single board; or the accumulated charge forms an electrostatic field, which continuously affects the stability of the CPU operation of the single board

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