Step voltage detection method

Abstract

The invention discloses a step voltage detection method. The step voltage detection method uses a remote control type step voltage alarm trolley; and the remote control type step voltage alarm trolleycomprises a remote control and a controller that is located on the remote control trolley body and wirelessly connected to the remote control trolley body. The remote control trolley body is a front-rear length adjustable structure, and one of the front and rear wheels is a metal wheel structure. The step voltage detection method comprises the following steps: adjusting a detection step size of the remote control trolley body first; then setting an alarm voltage; and finally, using the remote control to remotely control the trolley body to advance and detect, and it indicates that the step voltage exceeds the set value if an alarm is issued. The step voltage detection method can detect from far to near around a faulty device, which greatly reduces the occurrence of personal electric shockcasualty accidents.

Description

technical field [0001] The invention relates to the field of electrical engineering, in particular to a detection method for a step voltage. This case is a divisional case of a remote-controlled step voltage alarm car and its alarm method. The original application number is: 201610308706.3. Background technique [0002] When a live wire of an overhead line breaks and falls on the ground, the potential of the landing point is the same as that of the live wire, and the current will flow from the landing point of the wire to the ground, so a potential distribution is formed on the ground with the landing point of the wire as the center. The farther the area is from the landing point, the more dispersed the current is, and the lower the ground potential is. If people or livestock stand within 8 to 10 meters from the point where the wire falls. Electric shock accident just may take place, and this electric shock is called step voltage and gets an electric shock. [0003] When ...

AI Technical Summary

Problems solved by technology

The second is that after the vertical pole is added, most of the fault current flows into the ground through the vertical pole, which reduces the diffuse flow of the horizontal conductor accordingly, so the horizontal current density on the ground surface is greatly reduced, resulting in a greatly reduced horizontal electric field intensity.

[0012] Ordinary step voltage alarm device still puts the staff in a dangerous electric field, which is prone to personal electric shock accidents

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