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Device and method for measuring induced voltage

A technology of induced voltage and voltage, which is applied in the electrical field, can solve problems such as the inability to know the induced voltage, exceeding the safety range, and threats to the personal safety of operators.

Inactive Publication Date: 2015-01-21
HANGZHOU KAIDA ELECTRIC POWER CONSTR +4
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when a line is powered off for maintenance, it may still be in a strong electromagnetic field, so induced voltage and induced current will be generated on the outage line. When the induced voltage and induced current exceed a certain range, it will affect the safety of workers serious threat to personal safety
[0004] At present, the electroscope can only make a qualitative judgment on the induced voltage, and cannot accurately obtain the magnitude of the induced voltage, and cannot know whether the induced voltage in the line exceeds the safe range, so it is impossible to take corresponding measures to reduce the danger of the practitioners. To a certain extent, it also affects the subsequent work process

Method used

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  • Device and method for measuring induced voltage
  • Device and method for measuring induced voltage
  • Device and method for measuring induced voltage

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Embodiment Construction

[0047] The core of the present invention is to provide a device for measuring induced voltage, which can quickly measure the voltage value of induced voltage; another object of the present invention is to provide a method for measuring induced voltage.

[0048] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0049] Since the starting voltage range of a qualified electroscope is 0.15 to 0.40 times...

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Abstract

The invention discloses a device and a method for measuring induced voltage. The device comprises a voltage dividing part, an analog-to-digital conversion part and a processor, wherein the voltage dividing part is connected with a high-voltage wire and is used for dividing the induced voltage in the high-voltage wire; the analog-to-digital conversion part is connected with the voltage dividing part and is used for performing analog-to-digital conversion on the induced voltage divided by the voltage dividing part; the processor is connected with the analog-to-digital conversion part and is used for computing the induced voltage. The device is capable of quickly measuring the voltage value of the induced voltage.

Description

technical field [0001] The invention relates to the electrical field, in particular to a device and method for measuring induced voltage. Background technique [0002] Induced voltage includes electromagnetic induced voltage and electrostatic induced voltage; among them, electromagnetic induced voltage is the alternating current in the high-voltage transmission line that will generate an unbalanced alternating magnetic field in its surrounding space. According to the principle of electromagnetic induction, when the magnetic line of force generated by the current cuts the adjacent power through-line, a longitudinally induced electromotive force will be generated; due to the unbalanced three-way inductance of the electromagnetic coupling, the zero-sequence voltage to ground will be induced on the power failure line. Electrostatic induced voltage is the coupling capacitance between the high-voltage transmission line and the lower conductor and the earth. When the high-voltage t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/25
Inventor 沈国芳董建祥马建艳卢培宏王伟汪晓俊诸葛赞何楼巍高峰
Owner HANGZHOU KAIDA ELECTRIC POWER CONSTR
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