Digital display high-voltage electroscope of telescopic rod

Abstract

The invention relates to improvement of an electroscopic instrument for high voltage power supply lines of an electric system, in particular to a digital display high-voltage electroscope of a telescopic rod. The digital display high-voltage electroscope of the telescopic rod is provided with the telescopic rod, a probe hook and a series resistor and is characterized in that the other end of the series resistor extends out the pipe wall of an insulation rod A to be provided with a signal output end. A signal tester is arranged on an insulation rod B and is composed of a casing, a built-in circuit, a built-in power supply, a warning light, a grounded end, a power switch, an alarm, a time delay switch, a self-checking button, a digital display screen and a signal input end. The signal input end arranged in the signal tester is connected with the signal output end of the series resistor through a connection wire, and the grounded end arranged in the signal tester is grounded through a connection wire. The digital display high-voltage electroscope of the telescopic rod solves the problems of incapability in distinguishing of overhaul line sensing voltage and working voltage existing in electroscopic operation of the existing high-voltage electroscope and low electroscopic operation, and is mainly used for improvement of the existing high-voltage electroscope.

Description

technical field [0001] The invention relates to the improvement of the electroscope for the high-voltage power supply line of the power system, which is a high-voltage electroscope with digital display of a telescopic rod. Background technique [0002] When the high-voltage power supply line of the power system is overhauled, it is first necessary to test whether the maintenance line is powered off, and then the maintenance personnel can climb up the pole to carry out line maintenance; at this stage, the urban power supply grid often has multiple power supply circuits sharing a power supply interval corridor, which is very important for The line maintenance and inspection work has brought great difficulties: ①. When one power supply circuit is powered off and the adjacent power supply circuit is not powered off, a higher induced voltage will be generated on the line of the power-off circuit. This situation occurs The measures taken are to connect the maintenance line to the ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of inability to distinguish whether the maintenance line is the induced voltage or the working voltage and the low efficiency of the electric inspection operation existing in the electric inspection operation of the existing high-voltage electroscope, and to provide a telescopic rod digital display high-voltage electroscope

Images