A high-voltage live detection device

Abstract

The invention discloses a high-voltage live-line detector. The detector comprises a casing with an insulating handle, and a power supply, a power switch, a display device, a normally-closed contact relay, an electroscopic electrode, an electroscopic circuit and a high voltage probe accommodated in an inner cavity of the casing; the power supply, the power switch, the high voltage probe, the parallel connected display device and electroscopic electrode and the normally-closed contact relay are connected successively along the current direction to form the electroscopic circuit; one end of the high voltage probe is connected between the output end of the power switch and the input end of the electroscopic electrode, the other end of the high voltage probe penetrates out of the inner cavity of the casing, and a probe part extends towards the outside the casing; and the electroscopic electrode is in an electric contact state when not working and in an electric separating state when working. The high-voltage live-line detector provided by the invention can detect AC and DC high voltages at the same time, and can realize safe, low-cost and long-distance high-voltage live-line detection.

Description

technical field [0001] The invention relates to the technical field of electrometry, in particular to a high-voltage electrification detection device. Background technique [0002] In recent years, in the global economic development planning pattern of the "Belt and Road" advocated by the state, my country's power industry has developed by leaps and bounds, and transnational high-voltage and ultra-high-voltage power grids are gradually being built. This fully demonstrates the vigorous vitality of my country's power industry. With the rapid development of the power system, during the construction and commissioning of the line, as well as the maintenance and elimination work during operation, the conductor may carry high operating voltage, residual current, or induced current. life and property pose a serious threat. Therefore, the work of electroscope to test whether the conductor is charged is particularly important, it is the safety guarantee of electric power production....

AI Technical Summary

Problems solved by technology

Can detect AC and DC high voltage, but not long-distance detection

2) The electrostatic voltmeter utilizes the attraction of the light conductor foil by the high-voltage electric field to trigger the rotation of the hairspring mechanism and perform cursor amplification. It can detect AC and DC high voltages, but it cannot be detected remotely

[0003] None of the above electrical inspection devices can provide safe, low-cost, and long-distance high-voltage live detection.

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