Configuration method for capacity regulating and value fixing of on-load capacity regulating capacity distribution transformer

Abstract

The invention relates to a configuration method for on-load capacity regulating power distribution transformers, in particular to a configuration method for capacity regulating and value fixing of an on-load capacity regulating power distribution transformer. The method includes the steps of obtaining technical performance parameters of an on-load capacity regulating power distribution transformer; determining a load rate of the on-load capacity regulating power distribution transformer in a large rated capacity operation mode; determining operation consumption of the on-load capacity regulating power distribution transformer; determining a critical load rate; determining a low voltage side current set value of the on-load capacity regulating power distribution transformer; and determining whether the technical performance parameters of the on-load capacity regulating power distribution transformer are changed. According to the configuration method for capacity regulating and value fixing of the regulated capacity distribution transformer, by the analysis and calculation of the technical performance parameters of the on-load capacity regulating power distribution transformer, the capacity regulating and value fixing configuration scheme of the on-load capacity regulating power distribution transformer from a small rated capacity mode to a large rated capacity operation is determined, and the purpose of reducing transformer operation consumption and economic operation is achieved.

Description

Technical field [0001] The invention relates to a configuration method of an on-load capacity-adjusting distribution transformer, in particular to a method for configuring the capacity-adjusting fixed value of an on-load capacity-adjusting distribution transformer. Background technique [0002] The peak-to-valley load difference in rural areas is large. The distribution transformer is close to full load during the peak load period and close to no load during the low load period. If the rated capacity of the transformer in the station area is configured according to the peak load period, the majority of the year will be in a large horse-drawn cart In the running state, the no-load loss of the transformer is relatively large. Distribution transformer operating loss mainly includes no-load loss and load loss. No-load loss is also called iron loss, which is mainly related to operating voltage, number of winding turns, core cross section, total core weight, core material performance, ...

AI Technical Summary

Problems solved by technology

At present, the relevant standards of on-load capacity-adjusting transformers do not specify the configuration of capacity adjustment and setting values. In practical applications, the rated parameters of on-load capacity-adjusting distribution transformers are generally used as the basis, and the current on the low-voltage side of the transformer is used as a criterion index. According to experience It is set to 80% of the small rated capacity operation mode as the upward adjustment value, or a range is set according to the user's requirements, and it is not determined according to the goal of optimizing the transformer's operating loss, which lacks scientificity and rationality, and Cannot give full play to the performance advantages of energy-saving and loss-reducing technology of on-load capacity-adjusting distribution transformers

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