Electronic mutual inductor with anti-stealing electricity function

An electronic transformer and anti-stealing technology, applied in the direction of inductors, voltage/current isolation, circuits, etc., can solve the problems of not having anti-stealing, improve accuracy and reliability, avoid stealing behavior, eliminate effect of error

Inactive Publication Date: 2009-11-04
TSINGHUA UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing electronic transformers do not have the function of anti-stealing

Method used

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  • Electronic mutual inductor with anti-stealing electricity function
  • Electronic mutual inductor with anti-stealing electricity function
  • Electronic mutual inductor with anti-stealing electricity function

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Experimental program
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Embodiment Construction

[0026] The electronic transformer with anti-stealing function proposed by the present invention has a structural block diagram such as figure 1 As shown, it includes: a sensor head for measuring voltage and current, a self-powered power supply module, a signal processing module and an anti-theft metering module. Self-powered power module The self-powered power module is connected to the signal processing module, and is used to provide a regulated power supply for the signal processing module. The sensor heads for voltage and current are connected to the signal processing module to detect the user's voltage and current signals, output optical or electrical signals proportional to the voltage and current, and provide voltage and current signals for the signal processing module. The signal processing module is used to convert the analog output of voltage and current through photoelectric conversion, amplification, shaping and filtering to obtain analog signals representing user v...

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Abstract

The invention relates to an electronic transformer with the function of preventing electricity theft, belonging to the technical field of high-voltage equipment and electronics. Including voltage / current sensing head, self-powered power supply module, signal processing module and anti-theft metering module. Among them, the self-powered power supply module is used to provide regulated power supply for the signal processing module, the voltage / current sensor head is used to detect the user's voltage and current signals, and the signal processing module is used to process and output analog signals of voltage and current. The module is used to calculate the user's electricity consumption and grid information, send it out wirelessly, and receive and restore the user's electricity consumption and grid information at the terminal. The advantages of the electronic transformer of the invention are that it has the function of preventing electricity theft, saves the electric energy meter in the original metering system, eliminates the error caused by the electric energy meter, and improves the accuracy and reliability of the metering system. And the unified management of the power system provides a certain foundation.

Description

technical field [0001] The invention relates to an electronic transformer with an anti-stealing function, which belongs to the field of high-voltage equipment and electronic technology. Background technique [0002] Accurate and reliable electricity metering is a prerequisite for safe and stable operation of power systems and electricity market transactions. The current metering system is mainly composed of electromagnetic transformers (including voltage transformers PT and current transformers CT) and meters. The transformer inputs the analog signal representing the fundamental voltage, current magnitude and phase into the meter, which calculates the current power consumption. This metering method brings an opportunity for stealers. Electric energy measurement is mainly determined by the product of voltage, current, power factor and time. Changing any element can make the electric energy meter run slowly, stop or even Inversion, thus affecting the accurate measurement of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F38/20G01R15/18
Inventor 张贵新陈永山耿华
Owner TSINGHUA UNIV
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