Multi-stage dry voltage regulating transformer

Abstract

A multi-gear dry type regulating transformer is disclosed, in particular to a multi-gear dry type regulating transformer which can realize the multi-gear transformation, which comprises an iron core (1), up and down clamps (2) and high and low voltage windings and the like, wherein the high and low voltage windings are sleeved on the iron core (1), the up and down clamps (2) are arranged on the upper end and the lower end of the iron core (1), and an insulating cylinder (5) is arranged between the high and low voltage windings. No less than two low voltage coils (4) of the low voltage winding in the windings are provided, and the low voltage coils (4) are sleeved in turn from outside to inside according to the voltage, each low voltage coil (4) is provided with a tap (7), and the other end of the tap (7) is connected with an insulating terminal (8) with low voltage output of the transformer. The capacity of the transformer can be correspondingly increased owing to adopting the sleeve of a plurality of low voltage coils (4), thereby having the characteristics of simultaneously outputting various different voltage and current when in low voltage, and large voltage-adjusting range and the like. The invention can meet the device use requirements of multi-gear regulation.

Description

1. Technical field: [0001] The invention belongs to a dry-type transformer, in particular to a multi-stage dry-type voltage regulating transformer. It is especially suitable for polysilicon smelting, multi-level dry-type voltage regulating transformer that can realize multi-level voltage transformation, and can also be used in other operating environments that require multi-level voltage transformation. 2. Background technology: [0002] With the increasing requirements for environmental protection and energy use in today's society, solar energy, as a renewable and pollution-free energy source, has attracted much attention. A large amount of polysilicon is needed in the use of solar energy, and the reactor is a necessary equipment for the production of polysilicon. According to the special process of polysilicon production, the transformers used in domestic reactors are all imported oil-immersed transformers, which are expensive, frequent maintenance, high maintenance costs...

AI Technical Summary

Problems solved by technology

According to the special process of polysilicon production, the transformers used in domestic reactors are all imported oil-immersed transformers, which are expensive, frequent maintenance, high maintenance costs, and affect production

In addition, in order to increase the output of polysilicon, the user must increase the pressure of the reaction furnace and increase the flow rate of the mixed gas. Increasing the flow rate of the mixed gas requires a large amount of energy, and the imported oil-immersed transformer has a low capacity and cannot meet the requirements of increasing the flow rate of the mixed gas. needs, thus affecting the quality and output of polysilicon production, and even causing trips and power outages, seriously affecting normal production

In addition, although there are multiple transformers at present, most of them are oil-immersed transformers, and the voltage regulation range generally does not exceed 10%, which cannot meet the needs of polysilicon production in reaction furnaces (reaction furnaces).

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