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Coil of compound voltage compensation autotransformer

An autotransformer, voltage compensation technology, applied in the direction of transformer/inductor coil/winding/connection, transformer, fixed transformer, etc. The effect of increasing the voltage regulation range and accuracy, and facilitating the calculation and operation

Inactive Publication Date: 2013-09-11
江西格林尚德新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the transformation ratio of the autotransformer widely used at present is fixed, or has 2 or 3 transformation ratios, so that the voltage regulation range of the autotransformer is limited, and it cannot meet the wider application in different occasions. need
However, if the voltage regulation is realized by installing additional transformers on the high-voltage and medium-voltage lines, it will not only increase the cost of the equipment, but also increase the energy consumption during the operation of the equipment, which does not have extensive promotion value

Method used

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  • Coil of compound voltage compensation autotransformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The technical solution adopted by the present invention is a coil of a compound voltage compensation autotransformer, the autotransformer is provided with an A-phase coil 1, a B-phase coil 12 and a C-phase coil 10 respectively connected to the three-phase alternating current, in order to realize the output For voltage adjustment, there are 20 sets of primary taps on the coil, that is, the primary tap 4 of the A-phase coil, the primary tap 6 of the B-phase coil, and the primary tap 8 of the C-phase coil each have 20 taps; there are also 20 sets of taps on the coil. The secondary taps, that is, the secondary tap 13 of the A-phase coil, the secondary tap 11 of the B-phase coil, and the secondary tap 9 of the C-phase coil each have 20 taps; there are also 20 groups of neutral zero-point taps on the coil, namely The neutral zero tap 2 of the A phase coil, the neutral zero tap 5 of the B phase coil and the neutral zero tap 7 of the C phase coil each have 20 taps; the A phase c...

Embodiment 2

[0051] On the basis of Embodiment 1, in order to realize the voltage regulation output for high-voltage alternating current in the present invention, a preferred implementation mode also includes eight coils in the A-phase coil 1, the B-phase coil 12 and the C-phase coil 10. Primary tap, 8 secondary taps and 8 neutral zero point taps, a group of primary taps of A-phase coil 1, B-phase coil 12 and C-phase coil 10 are respectively connected to the input AC power supply, A-phase coil 1, B-phase A group of secondary taps in the phase coil 12 and the C-phase coil 10 are respectively connected to the output lines, and a group of neutral zero-point taps in the A-phase coil 1, B-phase coil 12 and C-phase coil 10 are connected to each other, and other parts are connected with the implementation Example 1 is exactly the same.

Embodiment 3

[0053] On the basis of Embodiment 2, in order to realize the step-down output of the input AC power supply, and to realize stepless voltage regulation, it is convenient to calculate and set the ratio of the input voltage to the output voltage. The coil 1, the B-phase coil 12 and the C-phase coil 10 are respectively provided with 40 primary taps, 40 secondary taps and 40 neutral zero-point taps, and the A-phase coil 1, the B-phase coil 12 and the C-phase coil 10 The primary taps are evenly arranged on the upper part of the coils, the secondary taps of the A-phase coil 1, B-phase coil 12 and C-phase coil 10 are evenly arranged in the middle of the coils, and the A-phase coil 1, B-phase coil 12 and C-phase coil 10 The neutral zero-point taps of the coil are evenly arranged on the lower part of the coil, and the other parts are exactly the same as those in Embodiment 2.

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Abstract

The invention discloses a coil of a compound voltage compensation autotransformer. The autotransformer comprises an A-phase coil, a B-phase coil and a C-phase coil which are connected with three-phase alternating current respectively, multiple primary taps, multiple secondary taps and multiple neutral zero taps are arranged at same positions of the three coils, one group of primary taps in the three coils is connected with an input alternating power supply, one group of secondary taps in the three coils is connected with an output line, and one group of neutral zero taps in the three coils are connected with one other. The coils are made of polyimide enamelled round copper wires, and a silicon steel core is arranged in each coil. The coil of the autotransformer is provided with the primary taps, the secondary taps and the neutral zero taps, non-polar voltage regulating output of voltage can be obtained by different combinations, and voltage regulating range is widened while voltage regulating precision is improved; the coil can be used as voltage rising or voltage dropping equipment by adopting different connection modes.

Description

technical field [0001] The invention relates to a coil of a transformer, in particular to a coil of a compound voltage compensation autotransformer. Background technique [0002] An autotransformer is a transformer with only one winding. When used as a step-down transformer, a part of the turns is extracted from the winding as a secondary winding; when used as a step-up transformer, the applied voltage is only applied to a part of the turns of the winding. . Since the autotransformer has many advantages in use, such as less consumption of materials, lower cost, less loss and high benefit, easy transportation and installation, and high limit manufacturing capacity, etc., with the development of the power system and the improvement of the voltage level With the increase of transmission capacity, autotransformers are widely used due to their large capacity, small loss and low cost. [0003] Compared with the general transformer of the same capacity, the autotransformer has th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F30/02H01F27/28H01F27/32
Inventor 田安振
Owner 江西格林尚德新能源科技有限公司
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