Branch identification and electric energy measuring type line loss analyzer

A technology for electric energy metering and analyzers, applied in the direction of measuring electrical variables, instruments, measuring electricity, etc., can solve problems such as low efficiency, difficult line loss comparison, and repetitive work, so as to reduce excessive dependence, ensure fast focus, and avoid branch measurement The effect of blind spots

Pending Publication Date: 2016-12-07
NANJING POWER SUPPLY CO OF STATE GRID JIANGSU ELECTRIC POWER CO +3
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Problems solved by technology

This approach often requires the cooperation of multiple parties due to the unclear topology of the station area, resulting in repeated work and low efficiency. Usually, it takes a week or even longer to solve a station area
And in the case of a large number of stages, it is also difficult to conduct in-depth line loss comparisons
Therefore, the traditional working method is difficult to quickly locate the line loss point

Method used

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  • Branch identification and electric energy measuring type line loss analyzer
  • Branch identification and electric energy measuring type line loss analyzer
  • Branch identification and electric energy measuring type line loss analyzer

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Embodiment Construction

[0026] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described below are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0027] figure 1 It is a block diagram of the working principle of the low-voltage line loss analyzer provided by the present invention. When the low-voltage line loss analyzer is working, after the voltage and current are sampled through the circuit, and processed by the high-speed A / D converter, the power data part is sent to the power DSP module For processing, the pulse signal part is sent to the pulse signal DSP processing module for processing, and finally the DSP processing module sends the processed data to output devices such as the display part and the communication part according to needs.

[0028] figure 2 It is the abnormal point troubleshoo...

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Abstract

The invention discloses an achieving method for a branch identification and electric energy measuring type line loss analyzer. The analyzer solves the problem that line loss anomalous points of a zone area with the complex power grid structure are hard to position rapidly. The power frequency load carrier signal technology is adopted as the principle, and on the basis of the quasi-synchronous sampling core algorithm, the branch recognition and electric energy measuring synchronous operation functions are achieved. The analyzer is composed of a host and three current clamps, the host comprises a load carrier signal sampling processing module, an electric parameter collecting operation module, a load carrier signal generating protecting module, an embedded processor module, a display and touch screen control module, a communication module, an electric energy data and information storage module and other modules. The load carrier signal sampling processing module is subjected to load carrier signal demodulation and operation processing, and the branch topology affiliations are divided step by step. The electric parameter collecting operation module completes power line parameter sampling and operation.

Description

technical field [0001] This patent proposes a low-voltage line loss analyzer that not only has the function of identifying the topology of the station area, but also has the function of measuring branch electric energy. The invention belongs to the technical field of power grid detection, and in particular relates to line loss measurement and line loss point location detection equipment. Background technique [0002] In recent years, various power grid companies have invested a lot of energy, material resources, and manpower in order to improve the line loss index of low-voltage station areas, which has rapidly improved the line loss index and brought huge social benefits to business operations. [0003] In the troubleshooting of abnormal line loss problems in low-voltage station areas, the line loss indicators can be improved to a certain extent through simple processing methods such as routine household change verification and general table cleaning. [0004] However, as ...

Claims

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Application Information

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IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 徐爱华金璐李建韦锴
Owner NANJING POWER SUPPLY CO OF STATE GRID JIANGSU ELECTRIC POWER CO
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