Broadband 35kv voltage measurement device and method

A voltage measurement and broadband technology, applied in the field of broadband 35kv voltage measurement devices, can solve the problems of low measurement accuracy and inaccurate measurement, and achieve the effects of high measurement accuracy, wide sampling frequency bandwidth, and good measurement reliability.

Active Publication Date: 2020-09-18
STATE GRID SHANDONG ELECTRIC POWER
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Problems solved by technology

[0005] In view of this, the purpose of one or more embodiments of this specification is to propose a broadband 35kv voltage measurement device and method to solve the problems of inaccurate measurement and low measurement accuracy of existing voltage measurement devices

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  • Broadband 35kv voltage measurement device and method
  • Broadband 35kv voltage measurement device and method
  • Broadband 35kv voltage measurement device and method

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Embodiment Construction

[0032] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0033] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of the present specification shall have ordinary meanings understood by those skilled in the art to which the present disclosure belongs. "First", "second" and similar words used in one or more embodiments of the present specification do not indicate any order, quantity or importance, but are only used to distinguish different components. "Comprising" or "comprising" and similar words mean that the elements or items appearing before the word include the elements or items listed after the word and their equivalents, without excluding other elements or items. Words such as "connected" or "con...

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Abstract

One or more embodiments of the invention provide a broadband 35kv voltage measurement device and method. Voltage is measured through a resistance voltage division principle, the sampling frequency band is wide, a primary side and a secondary side are insulated and isolated, the measurement reliability is good, the measurement precision is high, a voltage analog signal is converted into a voltage digital signal and a voltage optical signal, the device can be directly connected with a microcomputer, and the device adapts to automation and digitization of a power system.

Description

technical field [0001] One or more embodiments of this specification relate to the field of power system and automation technology, and in particular to a broadband 35kv voltage measuring device and method. Background technique [0002] Potential transformer is one of the important equipment used for electric energy metering and relay protection in power system. Its measurement accuracy and reliability have an important impact on the safety, stability and economic operation of power system. Traditional voltage transformers have problems such as large size, small dynamic range, narrow sampling frequency band, and prone to ferromagnetic resonance, which can cause overvoltage and short circuit at the output end. In addition, with the rapid development of microcomputer protection technology and modern microelectronic technology, the Electrical protection and secondary measurement devices no longer need high-power drives, and the secondary output voltage signal of traditional vol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/25G01R15/04
CPCG01R19/2503G01R15/04
Inventor 姜建平李猷民王贺磊李小飞王栋张民曾令甫孟令国菅有为张振华万磊冯迎春袁喆张鸿龙路修君田吉红邵长兵宋蕾周涛孙韬张茂军张伟君张书光苏刘鹏胡兵马建忠邓鑫郭可赵磊杨勇周恒
Owner STATE GRID SHANDONG ELECTRIC POWER
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