Distribution transformer capable of automatically adjusting capacitance and voltage

Abstract

The invention discloses a distribution transformer capable of automatically adjusting capacitance and voltage. The distribution transformer comprises a transformer shell; transformer coils are arranged in the shell; the upper and lower ends of the transformer coils are provided with an upper clamp piece and a lower clamp piece; the shell is provided with a transformer top cover; the upper part ofthe transformer top cover is provided with high voltage insulators and low voltage outlet parts or low voltage insulators; and the distribution transformer also comprises a transformer support, a capacitance adjustment switch, a voltage adjustment switch, a low voltage permanent magnet vacuum load switch and a comprehensive monitoring controller. The distribution transformer capable of automatically adjusting capacitance and voltage effectively solves the problems of low voltage in a distribution network, large no-load loss and unbalanced transformation three-phase load in a rural power distribution transformer district, can be operated remotely in a controllable way, has a function of power stealing prevention, and realizes automatic control and power monitoring and management of the power distribution network transformer district.

Description

technical field [0001] The invention relates to the field of power distribution in rural areas, in particular to an automatic capacity-adjusting and voltage-regulating power distribution transformer. Background technique [0002] More than 90% of the rural distribution transformers operate under light load, and the no-load loss is large. Low voltage and three-phase load imbalance are common. Low voltage will cause the following hazards: (1) Burning the motor. If the voltage is too low by more than 10%, the motor current will increase, and when the coil temperature rises seriously, the motor will even be burned. (2) The lights are dimmed. If the voltage is reduced by 5%, the illuminance of ordinary lamps will be reduced by 18%; if the voltage is reduced by 10%, the illuminance will be reduced by 35%; if the voltage is reduced by 20%, the fluorescent lamp will not start. (3) Increase the line loss. When a certain amount of power is transmitted, the voltage decreases and the...

AI Technical Summary

Problems solved by technology

[0005] In view of the above needs, the technical problem solved by the present invention is to provide an automatic capacity-adjusting and voltage-regulating distribution transformer, which solves the common low-voltage problem of distribution network users, and solves the problem of large no-load loss and The unbalanced three-phase load of the distribution transformer can also be operated remotely, realizing the automatic control and power consumption monitoring and management of the distribution network platform area

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