On-load voltage-regulating oil-immersed power transformer

Abstract

The invention discloses an on-load voltage-regulating oil-immersed power transformer which comprises a transformer body and a main insulation structure arranged at the end of the transformer body. A plunger buffer is arranged in the main insulation structure, and a plurality of partition plates are adopted in the main insulation structure to form a non-guiding oil gap channel communicated with theplunger buffer. The outer wall of the partition plate is pressed by an insulating pressing plate, a transformer main column is arranged on the right side of the insulating pressing plate, main columnwinding assemblies are evenly wound around the outer wall of the transformer main column, the tail ends of the main column winding assemblies are connected with voltage-regulating electrostatic rings, and the control end of the voltage-regulating electrostatic ring is connected with a voltage-regulating controller arranged on the inner wall of the transformer. The transformer main column is combined with the voltage-regulating electrostatic ring to eliminate field intensity concentration caused by the voltage-regulating electrostatic ring, electric energy can be ensured to be saved to the maximum extent, the average load rate of the transformer is increased, no-load loss is reduced, and the power quality and the stability of the power distribution network voltage can be improved.

Description

technical field [0001] The invention relates to the technical field of power transformers, in particular to an on-load voltage regulating oil-immersed power transformer. Background technique [0002] In view of the problems of large peak and valley changes in user load and voltage fluctuations, on-load capacity-adjusting voltage-regulating transformers that reasonably adjust capacity and output voltage according to actual operating conditions have emerged as the times require. On-load capacity-adjusting voltage-regulating transformers can effectively improve power distribution. The average load rate of the transformer has a remarkable energy-saving effect, and it can also improve the power quality and the stability of the grid voltage, and prolong the service life of the electrical equipment. [0003] At present, there are still the following problems in oil-immersed power transformers used for on-load voltage regulation: [0004] (1) The existing on-load voltage regulating...

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Problems solved by technology

[0006] For this reason, the present invention provides an on-load voltage regulating oil-immersed power transformer, which solves the problem in the prior art that the field strength of the on-load voltage regulating oil-immersed power transformer cannot be dynamically adjusted in real time due to the concentration of field strength.

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