Demonstration Method of Loss Reduction Effect of Transformer Reactive Power Compensation
A transformer and loss reduction technology, applied to instruments, measuring electrical variables, measuring devices, etc., can solve the problems of cumbersome operation, incapable of reactive power compensation and quantification of energy-saving effect
Active Publication Date: 2016-09-21
STATE GRID CORP OF CHINA +3
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Problems solved by technology
The operation is cumbersome due to the need to carry out complicated grid analysis
Moreover, the existing energy-saving and loss-reducing effect evaluation technology cannot intuitively quantify the energy-saving effect of reactive power compensation
Method used
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[0039] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0040] An empirical method for demonstrating the loss reduction effect of reactive power compensation for transformers, comprising the following steps:
[0041] Step 1: Select the transformer as the research object, and select the equivalent resistance of the transformer according to the rated coefficient of the transformer , and select two typical measurement days as the time period of the study;
[0042]Step 2: Take one of the typical measurement days selected above as the measurement day before installing reactive power compensation equipment, and measure the power loss value of the transformer in the typical measurement day ; Take another typical measurement ...
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The invention discloses a method for loss reduction effect reality testing of transformer reactive compensation. The method for the loss reduction effect reality testing of the transformer reactive compensation comprises the following steps that a transformer serves as a study object, the equivalent resistance of the transformer is selected according to a rated coefficient of the transformer, and two typical measuring days are selected as study time periods; measuring points are selected and an active power loss value is calculated; data recording of five typical measuring days is selected, and an active power loss interval value of the transformer is calculated; an electric quantity loss conversion interval value of the transformer is calculated; a transformer loss value measured and obtained after reactive compensation is compared with a power grid electric quantity loss conversion interval value to obtain the loss reduction effect of transformer reactive compensation. The method for the loss reduction effect reality testing of the transformer reactive compensation achieves the purposes that a loss measuring strategy of the transformer and reality testing for measuring the loss reduction effect of reactive compensation are integrated, and therefore energy-saving reactive compensation effect can be clearly and simply quantized without making a complicated analysis of a power grid.
Description
technical field [0001] The invention relates to the field of high-voltage transmission, in particular to an empirical method for demonstrating the loss reduction effect of reactive power compensation of a transformer. Background technique [0002] At present, reactive power compensation for the low-voltage side of the transformer will effectively reduce the reactive load of the transformer, increase the power factor of the transformer load, and play a very important role in energy saving and loss reduction of the transformer. However, generally speaking, within a certain period of time, the load state faced by the transformer before and after implementing reactive power compensation is not consistent. Therefore, the measurement results of the two losses not only reflect the effect of reactive power compensation equipment put into operation, but also are affected by load changes to a greater extent, and the measurement results are difficult to be directly applied to the demon...
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IPC IPC(8): G01R31/00
Inventor 刘福潮王维洲刘洪郑晶晶周喜超邵冲董佳霖梁雅芳周金程
Owner STATE GRID CORP OF CHINA