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Voltage measuring apparatus

A voltage measurement and monitoring device technology, applied in the field of induced voltage, can solve the problems of low voltage measurement range, lack of high voltage circuit protection in resistance divider circuits, etc., and achieve the effect of high flexibility and accurate measurement results

Active Publication Date: 2018-11-16
CHUZHOU POWER SUPPLY CO OF STATE GRID ANHUI ELECTRIC POWER CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a voltage measuring device, aiming at solving the lack of high-voltage circuit protection in the resistance divider circuit in the prior art, and can solve the problem of low voltage measurement range

Method used

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. 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.

[0019] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or Presence or addition of multiple other features, integers, steps, operations, elements, components and / or collections thereof.

[0020] It should also be understood that the terminology used ...

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Abstract

The invention discloses a voltage measuring apparatus. The apparatus comprises a voltage measuring module and a protection module, the voltage measuring module is used for measuring a line voltage, the measuring range of the voltage measuring module is variable, and the protection module is used for determining whether the line voltage exceeds a maximum measuring range of the voltage measuring module, inputting the line voltage to the voltage measuring module for measurement if the line voltage does not exceed the maximum measuring range of the voltage measuring module, and measuring the linevoltage exceeding the maximum measuring range. The line voltage is measured through the setting of the voltage measuring module, when the line voltage does not exceed the maximum measuring range of the voltage measuring module, the line voltage is input to the voltage measuring module for measurement, the line voltage exceeding the measuring range is measured, and problems of lack of high-voltagecircuit protection in a resistor voltage-dividing circuit and small voltage measuring range are solved.

Description

technical field [0001] The invention relates to the technical field of induced voltage, in particular to a voltage measuring device. Background technique [0002] In the test of line induced voltage measurement, in view of the technology of capacitive voltage division measurement, there are problems such as large volume and inability to use normally in the face of low induced voltage. In the existing technology, more direct measurement with multimeter and The line induced voltage is measured by pure resistance voltage division. [0003] For this reason, the existing technology inevitably has the problems of low measurement range of line induced voltage, lack of high-voltage protection during use of low-voltage components such as resistors, and easy breakdown by excessively high induced voltage. Contents of the invention [0004] The invention provides a voltage measurement device, aiming at solving the lack of high-voltage circuit protection in the resistance divider circ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/00G01R15/04G01R15/09
CPCG01R15/04G01R15/09G01R19/0084
Inventor 王雷兵汤建华宋波顾兵应飞刘素伟杨哲蔡飞龙吴天宇潘永兵
Owner CHUZHOU POWER SUPPLY CO OF STATE GRID ANHUI ELECTRIC POWER CORP