CN201638634U - Multi-stage coarse-and-fine continuous voltage-regulation rectifier transformer for tertiary winding - Google Patents

Multi-stage coarse-and-fine continuous voltage-regulation rectifier transformer for tertiary winding Download PDF

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Publication number
CN201638634U
CN201638634U CN2010201664967U CN201020166496U CN201638634U CN 201638634 U CN201638634 U CN 201638634U CN 2010201664967 U CN2010201664967 U CN 2010201664967U CN 201020166496 U CN201020166496 U CN 201020166496U CN 201638634 U CN201638634 U CN 201638634U
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China
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winding
transformer
series
coarse
low pressure
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Expired - Fee Related
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CN2010201664967U
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Chinese (zh)
Inventor
李冬林
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JIANGXI TRANSFORMERS TECH Co Ltd
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JIANGXI TRANSFORMERS TECH Co Ltd
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Abstract

A multi-stage coarse-and-fine continuous voltage-regulation rectifier transformer for a tertiary winding is characterized in that a coarse regulation winding Wc and a fine regulation winding Wt of a main transformer realize multi-stage coarse and fine continuous voltage regulation by an on-load tap switch and supply power for a high-voltage winding W5 of a series transformer; and a low voltage winding W4 of the main transformer is electrically connected with a low voltage winding W6 of the series transformer in series, thus forming the secondary side of the transformer. The technical effects are as follows: the primary side, the secondary side and the third side are electrically separated mutually, thus being very safe and reliable; the capacity coefficient is 1.5, while the capacity coefficient of a voltage-reducing self-coupled circuit is 1.75, and the capacity coefficient of a step-down circuit is 2, therefore, the cost is saved and the efficiency is improved; and the rectifier transformer realizes multi-stage coarse-and-fine continuous voltage regulation from 48 stages to 107 stages and is more convenient in operation.

Description

Tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer
Technical field
The utility model relates to a kind of transformer, relates in particular to a kind of tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer.
Background technology
Along with aluminium electroloysis industry, chemical industry develop to high voltage, the big sense of current, require commutation supply voltage equipment rectifier transformer also will develop to big capacity direction, the mode of connection of traditional rectifier transformer can't satisfy high reliability, low-loss high efficiency, low-impedance voltage and the requirement of interior continuous voltage regulating on a large scale simultaneously.The utility model provides a kind of tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer, can satisfy high reliability, low-loss high efficiency, low-impedance voltage and the requirement of interior continuous voltage regulating on a large scale.
Summary of the invention
The purpose of this utility model is to provide a kind of tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer, and this transformer adapts to the commutation supply voltage system of aluminium electroloysis industry, chemical industry and other special trades.
The utility model is achieved like this, it is made up of main transformer and series transformer two parts, wherein main transformer is by a winding W1, phase shift winding W2, coarse adjustment winding Wc, fine tuning winding Wt and low pressure winding W4 form, and choose the stable and compensation winding W3 of part or all conduct of coarse adjustment winding Wc; Series transformer is made up of high pressure winding W5 and low pressure winding W6; The coarse adjustment winding Wc and the fine tuning winding Wt that it is characterized in that main transformer realize multi-stage coarse and fine continuous pressure by on load tap changer, and to the high pressure winding W5 of series transformer power supply; The low pressure winding W6 of the low pressure winding W4 of main transformer and series transformer is connected in series on electric, forms the secondary side of transformer.
The low pressure winding of described main transformer and the low pressure winding of series transformer can be designed to " 8 " coil form, also can independently separate.
Adopt two independent iron cores, being designed to the rectification pulse number is 6 pulse waves or 12 pulse waves; Or adopt four independent iron cores, being designed to the rectification pulse number is 12 pulse waves or 24 pulse waves.
Main transformer and series transformer are placed in the same fuel tank, form homophony unification formula structure; Also main transformer can be placed on a fuel tank, series transformer is placed in the another one fuel tank, forms split-type structural.
Technique effect of the present utility model is: primary side, secondary side and three sides are isolated on electric mutually, and are as safe as a house reliable; Capacity coefficient is 1.5, and the capacity coefficient of step-down self coupling circuit is 1.75, and the capacity coefficient of the circuit that falls progressively is 2, and circuit is saved cost more, raises the efficiency; Realization is from 48 grades to 107 grades multi-stage coarse and fine continuous pressure, and is more convenient to operate; The insulation level of on load tap changer is low, and is more safe and reliable; The low pressure winding of main transformer and the low pressure winding of series transformer can be designed to " 8 " coil form, also can independently separate, and be convenient, flexible.
Description of drawings
Fig. 1 is an elementary diagram of the present utility model.
Fig. 2 is the winding layout plan of the utility model main transformer.
Fig. 3 is the winding layout plan of the utility model series transformer.
Embodiment
As shown in Figure 1, the winding W1 and the phase shift winding W2 of main transformer 1 connect into indentation, and neutral point can be drawn ground connection, constitute the YN connection, three head ends of three-phase side winding are nominally A, B, C terminal, insert three phase and symmetric power system A phase, B phase and C respectively mutually.Coarse adjustment winding Wc can form by 3 sections, 4 sections or 5 sections, and part or all that can choose coarse adjustment winding Wc according to actual condition is as stable and compensation winding W3, and stable and compensation winding W3 connects into triangle or star, forms three sides of transformer.The coarse adjustment winding Wc of main transformer 1 and fine tuning winding Wt realize multi-stage coarse and fine continuous pressure by on load tap changer, and to the high pressure winding W5 of series transformer 2 power supply.The low pressure winding W6 of the low pressure winding W4 of main transformer 1 and series transformer connects on electric, connects into triangle or Y-connection.
As Fig. 2, shown in Figure 3, the winding of main transformer 1 is sleeved on the iron core 3 jointly, in unshakable in one's determination 3 is successively outward: coarse adjustment winding Wc, fine tuning winding Wt, phase shift winding W2, winding W1 and low pressure winding W4.The winding of series transformer is sleeved on another iron core jointly, in iron core is successively outward: high pressure winding W5 and low pressure winding W6.

Claims (4)

1. tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer, it is made up of main transformer and series transformer two parts, wherein main transformer is by a winding W1, phase shift winding W2, coarse adjustment winding Wc, fine tuning winding Wt and low pressure winding W4 form, and choose the stable and compensation winding W3 of part or all conduct of coarse adjustment winding Wc; Series transformer is made up of high pressure winding W5 and low pressure winding W6; The coarse adjustment winding Wc and the fine tuning winding Wt that it is characterized in that main transformer realize multi-stage coarse and fine continuous pressure by on load tap changer, and to the high pressure winding W5 of series transformer power supply; The low pressure winding W6 of the low pressure winding W4 of main transformer and series transformer is connected in series on electric, forms the secondary side of transformer.
2. tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer according to claim 1 is characterized in that the low pressure winding of described main transformer and the low pressure winding of series transformer can be designed to " 8 " coil form, also can independently separate.
3. tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer according to claim 1 is characterized in that adopting two independent iron cores, and being designed to the rectification pulse number is 6 pulse waves or 12 pulse waves; Or adopt four independent iron cores, being designed to the rectification pulse number is 12 pulse waves or 24 pulse waves.
4. tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer according to claim 1 is characterized in that main transformer and series transformer are placed in the same fuel tank, forms homophony unification formula structure; Also main transformer can be placed on a fuel tank, series transformer is placed in the another one fuel tank, forms split-type structural.
CN2010201664967U 2010-04-22 2010-04-22 Multi-stage coarse-and-fine continuous voltage-regulation rectifier transformer for tertiary winding Expired - Fee Related CN201638634U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201664967U CN201638634U (en) 2010-04-22 2010-04-22 Multi-stage coarse-and-fine continuous voltage-regulation rectifier transformer for tertiary winding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201664967U CN201638634U (en) 2010-04-22 2010-04-22 Multi-stage coarse-and-fine continuous voltage-regulation rectifier transformer for tertiary winding

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CN201638634U true CN201638634U (en) 2010-11-17

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101819854A (en) * 2010-04-22 2010-09-01 江西变压器科技股份有限公司 Tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer
CN102361405A (en) * 2011-11-04 2012-02-22 广西恒顺电器有限公司 110kV rectifier transformer insulation structure special for silicon carbide production
CN103489599A (en) * 2013-10-08 2014-01-01 保定天威集团(江苏)五洲变压器有限公司 Multistage continuous voltage-regulating twelve-pulse-wave rectifier transformer
CN103559990A (en) * 2013-10-30 2014-02-05 江西变压器科技股份有限公司 Double-extended-triangle descending voltage regulation rectifier transformer
CN110635695A (en) * 2019-09-19 2019-12-31 南京航空航天大学 Novel 24-pulse TRU self-coupling energy feedback type half-bridge auxiliary circuit

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101819854A (en) * 2010-04-22 2010-09-01 江西变压器科技股份有限公司 Tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer
CN102361405A (en) * 2011-11-04 2012-02-22 广西恒顺电器有限公司 110kV rectifier transformer insulation structure special for silicon carbide production
CN102361405B (en) * 2011-11-04 2013-08-07 广西恒顺电器有限公司 110kV rectifier transformer insulation structure special for silicon carbide production
CN103489599A (en) * 2013-10-08 2014-01-01 保定天威集团(江苏)五洲变压器有限公司 Multistage continuous voltage-regulating twelve-pulse-wave rectifier transformer
CN103489599B (en) * 2013-10-08 2016-04-06 保定天威集团(江苏)五洲变压器有限公司 A kind of multistage continuous voltage regulating 12 pulsating wave rectifier transformer
CN103559990A (en) * 2013-10-30 2014-02-05 江西变压器科技股份有限公司 Double-extended-triangle descending voltage regulation rectifier transformer
CN110635695A (en) * 2019-09-19 2019-12-31 南京航空航天大学 Novel 24-pulse TRU self-coupling energy feedback type half-bridge auxiliary circuit

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C17 Cessation of patent right
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Granted publication date: 20101117

Termination date: 20120422