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Voltage regulation device

A technology of voltage regulating device and regulating winding, which is applied in the direction of regulating electrical variables, control/regulating systems, instruments, etc., can solve problems such as inability to meet, and achieve many levels of on-load voltage regulation, reduce power grid harmonics, and reduce drift. Effect

Inactive Publication Date: 2015-01-07
江苏新特变科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The usual voltage regulating device can realize voltage regulation from 0 to 250V, but the voltage and current obtained by this voltage regulation have a certain proportional relationship, which cannot meet the needs of specific occasions, such as specific voltage and specific current.

Method used

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  • Voltage regulation device

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Embodiment approach

[0017] Such as figure 1 As shown, the first embodiment of the voltage regulating device according to the present invention includes a Scott transformer 1 and an autotransformer 2. The Scott transformer 1 includes four windings 3, and each winding 3 is connected with a choke type saturable reactor 4, and the three phases of the autotransformer 2 are respectively connected to the three phases of the Scott transformer 1 through switches. Each phase of the autotransformer is formed by connecting a main winding 5 and a regulating winding 6 . In this way, one more voltage regulation level can be added with the neutral gear, and this level corresponds to the main winding, and it is more convenient to set the voltage regulation level. The switch includes a selection switch terminal 7 and a contact 8 with several voltage regulation levels. In this embodiment, there are 12 selection switch terminals 7, but 25 levels of voltage regulation can be realized. One end of the contact 8 can b...

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Abstract

The invention discloses a multilevel voltage regulation device. The voltage regulation device comprises a Scott transformer which comprises comprises four windings; every winding is connected with a choking saturable reactor; the voltage regulation device also comprises an auto-transformer; three phases of the auto-transformer are connected with three phases of the Scott transformer through a switch respectively. According to the voltage regulation device, the on-load voltage regulation levels are more, multiple power utilization requirements can be met, the drifting of a zero point of the primary side is reduced, and harmonic waves of a power grid are reduced.

Description

technical field [0001] The invention relates to a pressure regulating device. Background technique [0002] The usual voltage regulating device can realize voltage regulation from 0 to 250V, but the voltage and current obtained by this kind of voltage regulation have a certain proportional relationship, which cannot meet the needs of specific occasions, such as specific voltage and specific current. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a multi-stage pressure regulating device. [0004] In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: a voltage regulating device including a Scott transformer, the Scott transformer includes four windings, each winding is connected with a choke-type saturated reactor, and An autotransformer is included, and the three phases of the autotransformer are respectively connected to the three phases of the Sco...

Claims

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Application Information

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IPC IPC(8): G05F1/12
Inventor 包正科周奇
Owner 江苏新特变科技股份有限公司
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