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Method for determining low voltage transformation manner based on voltage synchronization test

A voltage synchronization and determination method technology, applied in the direction of measuring electricity, measuring devices, electrical components, etc., can solve the problems of unclear judgment, single low-voltage transformation method, etc., and achieve the effect of improving economy

Inactive Publication Date: 2019-03-08
ANSHAN POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER COMPANY +1
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Problems solved by technology

Make the determination of the original voltage transformation more targeted, solve the problem of single and unclear judgment of the original low-voltage transformation method, and further improve the economy of low-voltage transformation

Method used

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  • Method for determining low voltage transformation manner based on voltage synchronization test
  • Method for determining low voltage transformation manner based on voltage synchronization test
  • Method for determining low voltage transformation manner based on voltage synchronization test

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specific Embodiment

[0038] 1. Selection of test points, for example: the test transmission line is 10KM, the total number of transformers is 54, and the measurable points are generally places where electric personnel can easily reach (for example, uninhabited mountainous areas or large rice fields are listed as unmeasurable points), Generally, transformers or pipe network lines are measurable points. In this embodiment, 54 transformer locations are used as 54 total measurable points.

[0039] Select 18 test points according to 30%-40% of the total number of measurable points, and the distance between these 18 test points is selected as the average distance of 18 test points with a distance of 10KM from the entire line, that is, 10KM / 18=550 meters, Each measuring point is selected at a distance of about 550 meters.

[0040] 2. Synchronous test, the test time is one week;

[0041] Three, such as image 3 As shown, a three-dimensional surface of test point, time and voltage is formed;

[0042] 3....

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Abstract

The present invention provides a method for determining a low voltage modification manner based on a voltage synchronization test, including a voltage synchronization test method and a low voltage modification method. The voltage synchronization test method is performed by using synchronous clock voltage measurement method, and multiple points of a same line at the same time are collected to perform the voltage test, and drawing is performed, to obtain a low voltage generation point and a generation time. The method is performed by using synchronous clock voltage measurement. The principle isto collect multiple points of a same line at the same time (millisecond accuracy) to perform the voltage test, and perform drawing, to obtain a low voltage generation point and a generation time. In this way, original voltage transformation determination is more targeted, and the problem that the original low-voltage transformation method is single and determination is unclear is solved, so that economy of low voltage transformation is further improved.

Description

technical field [0001] The invention relates to the technical field of intelligent detection and power distribution, in particular to a method for determining a low-voltage transformation mode based on voltage synchronous testing. Background technique [0002] With the rapid development of my country's economic construction and people's living standards, and the acceleration of rural urbanization, the electricity consumption in rural areas and urban-rural fringes has surged. Large power consumption, long line transmission distance, and uneven load distribution have caused a sharp increase in the pressure on the 0.4kV distribution lines of the rural power grid, which is already stretched, and the demand for power is also increasing at a high speed. [0003] For rural power users in my country, a stable and safe power supply is the fundamental guarantee for rural users to use electricity normally and safely. However, due to the fact that the actual lines of my country's rural...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00G01R31/00
CPCH02J3/00G01R31/00
Inventor 关明梁凯刘君姜兴盛
Owner ANSHAN POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER COMPANY
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