Novel capacity regulating transformer

Abstract

The invention provides a novel capacity regulating transformer. The novel capacity regulating transformer comprises a transformer body, a detection device, a control device and a capacity regulating device. The transformer body comprises an iron core, a winding and a main body. The signal output end of the detection device is connected with the signal input end of the control device, the signal output end of the control device is connected with the signal control end of the capacity regulating device, and the signal output end of the capacity regulating device is connected with high-tension coils and low-tension coils of the transformer body. The high-tension coils and the low-tension coils are independent coils. The high tension and the low tension are converted in a series-parallel connection mode. Compared with an existing capacity regulating transformer, the unit iron loss is low, and the energy-saving effect is greatly improved compared with an existing product.

Description

Technical field [0001] The invention relates to the technical field of three-phase voltage transformation, in particular to a new type of capacity-regulating transformer. Background technique [0002] For a long time, my country's rural power grid has the characteristics of load dispersion, strong seasonality, and low average load rate. The transformer selected in the construction and transformation of the rural power grid should conform to the load characteristics of the rural power grid, and further reduce the no-load loss and no-load current of the transformer , To meet the current and the next few years, the newly installed and replaced distribution transformers have technological advancement and operational reliability. The capacity-regulating transformer is exactly the transformer designed according to the characteristics of the rural power grid, which can fully meet the needs of the rural power grid. [0003] The existing capacity-adjusting transformers all adopt high-voltag...

AI Technical Summary

Problems solved by technology

[0003] The existing capacity-adjusting transformers all adopt high-voltage D-Y conversion and low-voltage series-parallel structure. The capacity-adjusting transformers are mainly used in places with uneven loads. When used, the normal use is in the case of large capacity, and the load in the rest of the time is zero, the existing capacity regulating transformer has a Irrational numbers, the requirements are particularly high when selecting the number of low-voltage turns. When selecting the number of turns ratio, problems such as inaccurate transformation ratio, uneven direct resistance and excessive impedance often occur. When the capacity is small, the unit iron loss is high, and the energy saving effect Not obvious enough, the capacity adjustment section is in the middle of the coil, and the requirements for insulation treatment are relatively high

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