Intelligent stepless capacitance-regulating power distribution transformer

Abstract

The invention discloses an intelligent stepless capacitance-regulating power distribution transformer. The intelligent stepless capacitance-regulating power distribution transformer comprises an energy-saving power distribution transformer, a loaded magnetism regulating switch and a control cabinet, wherein the control cabinet is internally provided with a dynamic capacitance-regulating controller; the dynamic capacitance-regulating controller is directly connected with the energy-saving power distribution transformer to obtain operation parameters of the energy-saving power distribution transformer; the energy-saving power distribution transformer comprises a high-voltage coil; a plurality of taps are taped on the high-voltage coil; the taps of the high-voltage coil are connected with a binding post for adjusting gears of the loaded magnetism regulating switch; the loaded magnetism regulating switch is connected with the dynamic capacitance-regulating controller, and the capacity of the energy-saving power distribution transformer is adjusted by the dynamic capacitance-regulating controller through the loaded magnetism regulating switch. The intelligent stepless capacitance-regulating power distribution transformer has the advantages that the capacity can be automatically regulated according to the actual load size of the power distribution transformer, the problem of a power distribution net that a big horse is hauled by a small car is completely solved, the energy-saving effect is improved and the like.

Description

technical field [0001] The invention relates to a transformer, in particular to an intelligent stepless capacity-adjusting power distribution transformer used in a power system. Background technique [0002] The loss of the transformer occupies a very considerable proportion in the loss of the power grid, especially the large distribution network. Distribution transformers are widely used and their power loss has attracted much attention. Therefore, the loss reduction of distribution transformers is directly related to the economic benefits of power companies and society. [0003] Distribution transformers are mainly used in rural power grids and urban distribution networks. Rural power grid load has the characteristics of strong seasonality and large peak-to-valley difference in power consumption. The difference between the peak and valley of the urban power grid is more obvious, and its peak and valley rotation is more frequent. However, in order to meet the power dema...

AI Technical Summary

Problems solved by technology

This method can only be used for loads that change within seasons, and is not suitable for loads that change frequently, and the cost is high and maintenance costs are high

[0007] (2) In the past few years, no-load capacity regulating transformers have been applied in distribution networks, but due to the need for power-off regulation

[0010] From the perspective of power supply reliability, passing a large current in a small-capacity state will cause the transformer to burn out. In order to ensure the safety of power supply, the current at the capacity adjustment point has to be reduced, which will weaken the energy-saving effect.

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