CN104157432A - Adjustable reactor with three-dimensional roll core - Google Patents

Adjustable reactor with three-dimensional roll core Download PDF

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Publication number
CN104157432A
CN104157432A CN201410330549.7A CN201410330549A CN104157432A CN 104157432 A CN104157432 A CN 104157432A CN 201410330549 A CN201410330549 A CN 201410330549A CN 104157432 A CN104157432 A CN 104157432A
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coil
major loop
iron core
voltage regulation
reactance coil
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CN201410330549.7A
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戴如宏
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Shanghai Taixu Energy Technology Co Ltd
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Individual
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Abstract

The invention discloses an adjustable reactor with a three-dimensional roll core. The problems of inconvenience in use and poor energy-saving and power-saving effect caused by the fact that reactance of a reactor in the prior art cannot be subjected to on-line on-load regulation can be solved. The adjustable reactor comprises the three-dimensional roll core and a reactive coil sleeving the three-dimensional roll core, the reactive coil further comprises a main-loop reactive coil and a self-coupling tapped voltage-regulating coil, the first end of the main-loop reactive coil is connected with the input end of a high voltage line, and the second end of the main-loop reactive coil is connected with the output end of the high voltage line; the self-coupling tapped voltage-regulating coil is provided with multiple taps, the first end of the self-coupling tapped voltage-regulating coil is connected with the second end of the main-loop reactive coil, and the second end of the self-coupling tapped voltage-regulating coil is connected with the different taps by control connection of a level changeover controller so as to change voltage at the two ends of the main-loop reactive coil.

Description

Three-dimensional winding iron core adjustable reactor
Technical field
The present invention relates to reactor technical field, relate in particular to a kind of three-dimensional winding iron core adjustable reactor.
Background technology
Along with perfect to electric network reconstruction engineering of the development of power industry and country, make the unsettled phenomenon of original line voltage obtain general improvement.But the problem of bringing is that near electricity grid substation and during power load low ebb, voltage is generally higher thereupon, it is also common phenomenon that the voltage of 380V rises to 430V, and overtension brings great harm to electric equipment and causes the huge waste of the energy.
The voltage-stabilizing power-saving equipment that applies in the market high-tension line is few, only has the only a few manufacturer production high pressure reactance filter apparatus in Japan and Taiwan, but its function singleness, and the reactor voltage of series connection is nonadjustable, economizing on energy and electricity poor effect; It is stacked that iron core silicon steel sheet reactor adopts, and self energy consumption is large, and economizing on energy and electricity effect is very poor equally.
Summary of the invention
In view of the above problems, the present invention has been proposed to a kind of three-dimensional winding iron core adjustable reactor that can overcome the problems referred to above is provided.
According to one aspect of the present invention, a kind of three-dimensional winding iron core adjustable reactor is provided, comprise: three-dimensional winding iron core and be set in the reactance coil on described three-dimensional winding iron core, wherein, described reactance coil further comprises: major loop reactance coil and autocoupling type tap voltage regulation coil, wherein, the first end of described major loop reactance coil is connected with the input of high-tension line, and the second end of described major loop reactance coil is connected with the output of described high-tension line; Described autocoupling type tap voltage regulation coil has a plurality of taps, and the first end of described autocoupling type tap voltage regulation coil is connected with the second end of described major loop reactance coil, the second end of described autocoupling type tap voltage regulation coil is connected different taps by gear switching controller control connection, to change described major loop reactance coil both end voltage.
Alternatively, described three-dimensional winding iron core is by the symmetrical three-phase stereo volume iron core forming of single frame volume iron core of three same structures.
Alternatively, major loop reactance coil further comprises: the first major loop reactance coil, the second major loop reactance coil and the 3rd major loop reactance coil, and described autocoupling type tap voltage regulation coil further comprises: the first autocoupling type tap voltage regulation coil, the second autocoupling type tap voltage regulation coil and the 3rd autocoupling type tap voltage regulation coil, wherein, described first first end of major loop reactance coil and the first input end of high-tension line are connected, and the second end of described the first major loop reactance coil and the first output of described high-tension line are connected; The first end of described the first autocoupling type tap voltage regulation coil is connected with the second end of described the first major loop reactance coil; The first end of described the second major loop reactance coil is connected with the second input of high-tension line, and the second end of described the second major loop reactance coil and the second output of described high-tension line are connected; The first end of described the second autocoupling type tap voltage regulation coil is connected with the second end of described the second major loop reactance coil; The first end of described the 3rd major loop reactance coil is connected with the 3rd input of high-tension line, and the second end of described the 3rd major loop reactance coil is connected with the 3rd output of described high-tension line; The first end of described the 3rd autocoupling type tap voltage regulation coil is connected with the second end of described the 3rd major loop reactance coil.
Alternatively, described the first major loop reactance coil and described the first autocoupling type tap voltage regulation coil are wound on the first single frame volume iron core, described the second major loop reactance coil and described the second autocoupling type tap voltage regulation coil are wound on the second single frame volume iron core, and described the 3rd major loop reactance coil and described the 3rd autocoupling type tap voltage regulation coil are wound on the 3rd single frame volume iron core.
Alternatively, the cross section of described three-dimensional winding iron core is accurate polygon.
Alternatively, the cross section activity coefficient of described cross section is 0.95~0.96.
Alternatively, described gear switching controller is three-phase contactor.
In three-dimensional winding iron core adjustable reactor provided by the invention, except being provided with major loop reactance coil, be also further provided with the autocoupling type tap voltage regulation coil in parallel with this major loop reactance coil.Wherein, autocoupling type tap voltage regulation coil has a plurality of taps, and gear switching controller can be controlled and connect different taps according to the required voltage range in major loop reactance coil two ends, to realize the function that regulates major loop reactance coil two ends reactance value.Neutral body volume iron core adjustable reactor of the present invention can be realized " have online and carry " regulatory function the in the situation that of not power-off of major loop, thereby can in use realize economizing on energy and electricity effect well.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of specification, and for above and other objects of the present invention, feature and advantage can be become apparent, below especially exemplified by the specific embodiment of the present invention.
Accompanying drawing explanation
By reading below detailed description of the preferred embodiment, various other advantage and benefits will become cheer and bright for those of ordinary skills.Accompanying drawing is only for the object of preferred implementation is shown, and do not think limitation of the present invention.And in whole accompanying drawing, by identical reference symbol, represent identical parts.In the accompanying drawings:
Fig. 1 shows the external structure schematic diagram of this three-dimensional winding iron core reactor; And,
Fig. 2 shows the back panel wiring schematic diagram of the reactance coil of the volume iron core outside being wrapped in Fig. 1;
Fig. 3 is the equivalent schematic of Fig. 2.
Embodiment
Exemplary embodiment of the present disclosure is described below with reference to accompanying drawings in more detail.Although shown exemplary embodiment of the present disclosure in accompanying drawing, yet should be appreciated that and can realize the disclosure and the embodiment that should do not set forth limits here with various forms.On the contrary, it is in order more thoroughly to understand the disclosure that these embodiment are provided, and can by the scope of the present disclosure complete convey to those skilled in the art.
The invention provides a kind of three-dimensional winding iron core adjustable reactor, can solve reactor of the prior art can not have the problem that regulates the economizing on energy and electricity weak effect causing of carrying online.Three-dimensional winding iron core adjustable reactor provided by the invention comprises: three-dimensional winding iron core and be set in the reactance coil on described three-dimensional winding iron core, wherein, described reactance coil further comprises: major loop reactance coil and autocoupling type tap voltage regulation coil, wherein, the first end of described major loop reactance coil is connected with the input of high-tension line, and the second end of described major loop reactance coil is connected with the output of described high-tension line; Described autocoupling type tap voltage regulation coil has a plurality of taps, and the first end of described autocoupling type tap voltage regulation coil is connected with the second end of described major loop reactance coil, the second end of described autocoupling type tap voltage regulation coil is connected different taps by gear switching controller control connection, to change described major loop reactance coil both end voltage.Particularly, the tap terminals of described autocoupling type tap voltage regulation coil connects the same tap of connecting respectively three phase windings, to change described major loop reactance coil two ends reactance value.For example, the tap terminals of described autocoupling type tap voltage regulation coil connects the same tap terminals of three-phase simultaneously, namely the 1st of three-phase self coupling tap voltage regulation coil the or 2,3,4,5,6 taps connect to change and regulate self coupling coil turn, owing to changing self coupling coil turn major loop reactance coil two ends reactance value also along with change.As can be seen here, in three-dimensional winding iron core reactor provided by the invention, except being provided with major loop reactance coil, be also further provided with the autocoupling type tap voltage regulation coil in parallel with this major loop reactance coil.Wherein, autocoupling type tap voltage regulation coil has a plurality of taps, and gear switching controller can be controlled and connect different taps according to the required voltage range in major loop reactance coil two ends, to realize the function that regulates major loop reactance coil both end voltage.Neutral body volume iron core reactor of the present invention can be realized " have online and carry " voltage regulation function the in the situation that of not power-off of major loop, thereby can in use realize economizing on energy and electricity effect well.
Introduce in detail with reference to the accompanying drawings three-dimensional winding iron core adjustable reactor provided by the invention.
Fig. 1 shows the inner core structural representation of this three-dimensional winding iron core reactor.As shown in Figure 1, this three-dimensional winding iron core reactor inner core structure is combined into by three single frame volume iron core group.
Wherein, three single frame coiled cores are identical and be arranged symmetrically with, thereby whole three-dimensional winding iron core has the stereochemical structure of three-phase symmetrical.Wherein, each single frame volume iron core is divided into symmetrical two half-unit.Three volume iron cores in whole three-dimensional winding iron core reactor are the three-dimensional arrangement of equilateral triangle.Owing to adopting three magnetic circuit full symmetrics of the three-dimensional winding iron core reactor of this structure fabrication, thereby the length of three magnetic circuits is also identical, so the three-phase magnetic field degree of balance is fine, thereby can reduce impedance deviation, makes reactor can not produce harmonic wave.In addition, because three single frame coiled cores are identical and be arranged symmetrically with, thereby the angle between iron core and iron core and spacing stable, thereby can guarantee that the magnetic circuit of system is stable.By the structure set-up mode shown in Fig. 1, can solve reactor of the prior art because system magnetic circuit is asymmetric and easily cause the excessive defect of impedance deviation.
Fig. 2 shows and is wrapped in the back panel wiring schematic diagram that Fig. 1 rolls up the reactance coil of iron core outside.Fig. 3 is the equivalent schematic of Fig. 2.Shown in Fig. 2 and Fig. 3, the reactance coil that is wrapped in volume iron core outside further comprises: be connected on respectively three-phase major loop reactance coil LT, LS and LR in A phase line, B phase line and the C phase line of high-tension line, and autocoupling type tap voltage regulation coil Xt, the Xs and the Xr that are connected with LR with three-phase major loop reactance coil LT, LS respectively.
Particularly, the first end of major loop reactance coil LT is connected with the input of A phase line high-tension line, and its second end is connected with the output of A phase line high-tension line; Autocoupling type tap voltage regulation coil Xt has a plurality of taps, the first end of this voltage regulation coil Xt is connected with the second end (being the output of A phase line high-tension line) of major loop reactance coil LT, and, the second end of this voltage regulation coil Xt is connected different taps by gear switching controller K control connection, to change described major loop reactance coil LT both end voltage.Similarly, the first end of major loop reactance coil LS is connected with the input of B phase line high-tension line, and its second end is connected with the output of B phase line high-tension line; Autocoupling type tap voltage regulation coil Xs has a plurality of taps, the first end of this voltage regulation coil Xs is connected with the second end (being the output of B phase line high-tension line) of major loop reactance coil LS, and, the second end of this voltage regulation coil Xs is connected different taps by gear switching controller K control connection, to change described major loop reactance coil LS both end voltage; The first end of major loop reactance coil LR is connected with the input of C phase line high-tension line, and its second end is connected with the output of C phase line high-tension line; Autocoupling type tap voltage regulation coil Xr has a plurality of taps, the first end of this voltage regulation coil Xr is connected with the second end (being the output of C phase line high-tension line) of major loop reactance coil LR, and, the second end of this voltage regulation coil Xr is connected different taps by gear switching controller K control connection, to change described major loop reactance coil LR both end voltage.
Lower mask body is introduced above-mentioned autocoupling type tap voltage regulation coil Xt, Xs and the voltage-regulation principle of Xr.For autocoupling type tap voltage regulation coil Xt, Xs and Xr, every phase coil has respectively different voltage regulation coil tap N1, N2, N3, N4, N5 and N6 in the different numbers of turn.Gear switching controller K, according to the different reactance values of major loop reactance coil LT, LS and the upper required output of LR, controls and connects voltage regulation coil tap N1, N2, N3, N4, N5 or the N6 of the upper corresponding different numbers of turn of three phase voltage regulating coil Xt, Xs and Xr.Number of turn change along with autocoupling type tap voltage regulation coil, can change the reactance value of exporting on major loop reactance coil, thereby reaches the object that changes output voltage.Wherein, gear switching controller K can connect three-phase contactor by control and realizes.
Above-mentioned three-phase major loop reactance coil LT, LS and LR, three-phase autocoupling type tap voltage regulation coil Xt, Xs and Xr, be wound on respectively on the different iron cores of Three-Phase Transformer; Reactance coil LT and voltage regulation coil Xt are wound on this transformer A phase iron core, and reactance coil LS and voltage regulation coil Xs are wound on this transformer B phase iron core, and reactance coil LR and voltage regulation coil Xr are wound on this transformer C phase iron core.
In sum, in three-dimensional winding iron core adjustable reactor provided by the invention, one group of auxiliary adjustable autocoupling type tap voltage regulation coil simultaneously in parallel on major loop reactance coil, by adjustment, connect the tap of autocoupling type tap voltage regulation coil, sense that major loop reactance coil two ends reactance value changes, as long as adjust the tap of the autocoupling type tap voltage regulation coil of subsidiary loop, just can reach not power-off of major loop like this, have online the regulatory function of carrying.Wherein, major loop reactance coil is connected in high-tension line, plays the effect that filtering harmonic wave reduces voltage; Autocoupling type tap voltage regulation coil is in parallel with major loop reactance coil, by change over switch, control and connect the reactance value that different taps changes major loop reactance coil two ends, play in the situation that guaranteeing not power-off of major loop, with little electric current, just can control the object of the electric current that major loop is larger.
Three-dimensional winding iron core adjustable reactor in the present invention can be widely used in lowering and stabilizing blood pressure energy-saving equipment, wind-powered electricity generation, intelligent grid and the power electronics industry in high-low pressure electrical network, can solve the reactor own loss using in current transmission line high, can not carry at tape the problem of adjustment.
Compared with prior art, at least there is following beneficial effect in the present invention:
One, the output reactance value of adjustable reactor of the present invention can be adjusted the in the situation that of not power-off of major loop, connects the tap of auxiliary autocoupling type coil windings by adjustment, senses the change of major loop reactance value, has also changed output end voltage simultaneously.
Two, break through the confinement of conventional planar structure, adopt three identical semi-circular section volume iron cores, be combined into equilateral three-dimensional tri-phase iron core, make tri-phase iron core magnetic circuit full symmetric, magnetic resistance greatly reduces, exciting curent, no-load loss significantly reduce, and become running noises less, the energy-efficient triangle volume iron core new product that structure is more compact.Therefore, of the present invention have the Regulatable reactor of carrying to be widely used in the economize on electricity product of electrical network and distribution system online, and particularly the distribution system of voltage levels high power capacity has more unique advantage.Owing to thering is unique adjustable function of not power-off online, be also widely used in power electronics, wind-powered electricity generation, photovoltaic and intelligent grid.
Three, save material, reduce costs.Stereo-triangular wound iron core rod cross section in the present invention is accurate polygon, cross section activity coefficient can reach 0.95~0.96, and the stem cross section of traditional folded iron core is notch cuttype, cross section activity coefficient is only 0.89~0.925, therefore the in the situation that of same cross-sectional area, stereo-triangular wound iron core in the present invention, than the average turn length 2~3% of the heart line bag of the folded iron core of tradition, is namely saved copper material 2~3%, saves silicon strip approximately 15%.
Four, improve performance, reduce the wastage.Because the average magnetic circuit of stereo-triangular wound iron core of the present invention is shorter than the average magnetic circuit of traditional folded iron core, the weight of the folded iron core that therefore weight ratio of stereo-triangular wound iron core of the present invention is traditional is obviously light.In the situation that technological coefficient is identical, the no-load loss of stereo-triangular wound iron core of the present invention is just obviously low, and performance is good.Three-dimensional winding iron core reactor of the present invention with the comparison of capacity lamination reactor, save silicon steel sheet consumption approximately 20%, copper consumption 2~3%, no-load current declines 70%, noise decline 5dB (A)~9dB (A).
Five, reduce noise.Stereo-triangular wound iron core of the present invention is to be reeled and form successively by several trapezoidal material strips, tightr between silicon strip, the magnetic conduction direction of silicon strip and the magnetic circuit direction of iron core are in full accord, during work, vibrate little, and can solve the noise that traditional folded iron core sends because magnetic circuit is discontinuous, can make reducing noise to bottom line, general comparable folded appendiron core transformer reduces by 8~15dB (A), substantially reaches mute state.
Six, three-phase equilibrium.Because three stems of traditional folded iron core are planar alignment, make like this length of magnetic path of three stems inconsistent: the length of magnetic path of middle stem is the shortest, the magnetic circuit of two side columns is longer, the average length of magnetic path of two side columns is longer more than 20% than the average length of magnetic path of center pillar, thereby cause the loss difference of three stems larger, center pillar loss is minimum, and the loss of two side columns is larger, causes three-phase imbalance.And stereo-triangular wound iron core in the present invention is to be put together by three identical single frames, three stems are triangular arranged, and the length of magnetic path of three stems is in full accord, and the shortest, and three stem losses are consistent, thereby three-phase equilibrium.
The algorithm providing at this is intrinsic not relevant to any certain computer, virtual system or miscellaneous equipment with demonstration.Various general-purpose systems also can with based on using together with this teaching.According to description above, it is apparent constructing the desired structure of this type systematic.In addition, the present invention is not also for any certain programmed language.It should be understood that and can utilize various programming languages to realize content of the present invention described here, and the description of above language-specific being done is in order to disclose preferred forms of the present invention.
In the specification that provided herein, a large amount of details have been described.Yet, can understand, embodiments of the invention can not put into practice in the situation that there is no these details.In some instances, be not shown specifically known method, structure and technology, so that not fuzzy understanding of this description.
Similarly, be to be understood that, in order to simplify the disclosure and to help to understand one or more in each inventive aspect, in the above in the description of exemplary embodiment of the present invention, each feature of the present invention is grouped together into single embodiment, figure or sometimes in its description.Yet, the method for the disclosure should be construed to the following intention of reflection: the present invention for required protection requires than the more feature of feature of clearly recording in each claim.Or rather, as reflected in claims below, inventive aspect is to be less than all features of disclosed single embodiment above.Therefore, claims of following embodiment are incorporated to this embodiment thus clearly, and wherein each claim itself is as independent embodiment of the present invention.
Those skilled in the art are appreciated that and can the module in the equipment in embodiment are adaptively changed and they are arranged in one or more equipment different from this embodiment.Module in embodiment or unit or assembly can be combined into a module or unit or assembly, and can put them into a plurality of submodules or subelement or sub-component in addition.At least some in such feature and/or process or unit are mutually repelling, and can adopt any combination to combine all processes or the unit of disclosed all features in this specification (comprising claim, summary and the accompanying drawing followed) and disclosed any method like this or equipment.Unless clearly statement in addition, in this specification (comprising claim, summary and the accompanying drawing followed) disclosed each feature can be by providing identical, be equal to or the alternative features of similar object replaces.
In addition, those skilled in the art can understand, although embodiment more described herein comprise some feature rather than further feature included in other embodiment, the combination of the feature of different embodiment means within scope of the present invention and forms different embodiment.For example, in the following claims, the one of any of embodiment required for protection can be used with compound mode arbitrarily.
All parts embodiment of the present invention can realize with hardware, or realizes with the software module moved on one or more processor, or realizes with their combination.It will be understood by those of skill in the art that and can use in practice microprocessor or digital signal processor (DSP) to realize the some or all functions according to the some or all parts in the device of the embodiment of the present invention.The present invention for example can also be embodied as, for carrying out part or all equipment or device program (, computer program and computer program) of method as described herein.Realizing program of the present invention and can be stored on computer-readable medium like this, or can there is the form of one or more signal.Such signal can be downloaded and obtain from internet website, or provides on carrier signal, or provides with any other form.
It should be noted above-described embodiment the present invention will be described rather than limit the invention, and those skilled in the art can design alternative embodiment in the situation that do not depart from the scope of claims.In the claims, any reference symbol between bracket should be configured to limitations on claims.Word " comprises " not to be got rid of existence and is not listed as element or step in the claims.Being positioned at word " " before element or " one " does not get rid of and has a plurality of such elements.The present invention can be by means of including the hardware of some different elements and realizing by means of the computer of suitably programming.In having enumerated the unit claim of some devices, several in these devices can be to carry out imbody by same hardware branch.The use of word first, second and C grade does not represent any order.Can be title by these word explanations.

Claims (7)

1. a three-dimensional winding iron core adjustable reactor, is characterized in that, comprising: three-dimensional winding iron core and be set in the reactance coil on described three-dimensional winding iron core, wherein, described reactance coil further comprises: major loop reactance coil and autocoupling type tap voltage regulation coil, wherein
The first end of described major loop reactance coil is connected with the input of high-tension line, and the second end of described major loop reactance coil is connected with the output of described high-tension line;
Described autocoupling type tap voltage regulation coil has a plurality of taps, and the first end of described autocoupling type tap voltage regulation coil is connected with the second end of described major loop reactance coil, the second end of described autocoupling type tap voltage regulation coil is connected different taps by gear switching controller control connection, to change described major loop reactance coil both end voltage.
2. three-dimensional winding iron core adjustable reactor according to claim 1, is characterized in that, described three-dimensional winding iron core is by the symmetrical three-phase stereo volume iron core forming of single frame volume iron core of three same structures.
3. three-dimensional winding iron core adjustable reactor according to claim 2, it is characterized in that, major loop reactance coil further comprises: the first major loop reactance coil, the second major loop reactance coil and the 3rd major loop reactance coil, and described autocoupling type tap voltage regulation coil further comprises: the first autocoupling type tap voltage regulation coil, the second autocoupling type tap voltage regulation coil and the 3rd autocoupling type tap voltage regulation coil, wherein
Described first first end of major loop reactance coil and the first input end of high-tension line are connected, and the second end of described the first major loop reactance coil and the first output of described high-tension line are connected; The first end of described the first autocoupling type tap voltage regulation coil is connected with the second end of described the first major loop reactance coil;
The first end of described the second major loop reactance coil is connected with the second input of high-tension line, and the second end of described the second major loop reactance coil and the second output of described high-tension line are connected; The first end of described the second autocoupling type tap voltage regulation coil is connected with the second end of described the second major loop reactance coil;
The first end of described the 3rd major loop reactance coil is connected with the 3rd input of high-tension line, and the second end of described the 3rd major loop reactance coil is connected with the 3rd output of described high-tension line; The first end of described the 3rd autocoupling type tap voltage regulation coil is connected with the second end of described the 3rd major loop reactance coil.
4. three-dimensional winding iron core adjustable reactor according to claim 3, it is characterized in that, described the first major loop reactance coil and described the first autocoupling type tap voltage regulation coil are wound on the first single frame volume iron core, described the second major loop reactance coil and described the second autocoupling type tap voltage regulation coil are wound on the second single frame volume iron core, and described the 3rd major loop reactance coil and described the 3rd autocoupling type tap voltage regulation coil are wound on the 3rd single frame volume iron core.
5. three-dimensional winding iron core adjustable reactor according to claim 1, is characterized in that, the cross section of described three-dimensional winding iron core is accurate polygon.
6. three-dimensional winding iron core adjustable reactor according to claim 5, is characterized in that, the cross section activity coefficient of described cross section is 0.95~0.96.
7. three-dimensional winding iron core adjustable reactor according to claim 1, is characterized in that, described gear switching controller is three-phase contactor.
CN201410330549.7A 2014-07-11 2014-07-11 Adjustable reactor with three-dimensional roll core Pending CN104157432A (en)

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Cited By (6)

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Publication number Priority date Publication date Assignee Title
CN105429142A (en) * 2015-12-25 2016-03-23 山西乐普节能技术有限公司 High voltage power-saving system with seamless connection function
CN109411213A (en) * 2018-09-27 2019-03-01 江苏亚威变压器有限公司 A kind of three-dimensional winding iron core adjustable reactor
CN112992518A (en) * 2021-03-22 2021-06-18 保定天威保变电气股份有限公司 Three-phase adjustable parallel reactor wiring method adopting switch connection type tapping windings
CN112992511A (en) * 2021-03-22 2021-06-18 保定天威保变电气股份有限公司 Three-phase adjustable parallel reactor wiring structure adopting fixed connection type tapping windings
CN113539648A (en) * 2021-07-08 2021-10-22 旭宸(上海)能源科技有限公司 Double-energy-saving intelligent transformer with three-dimensional roll iron core
DE102021119659A1 (en) 2021-07-28 2023-02-02 Florian Fenske Controllable inductor and method for limiting an electric current

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105429142A (en) * 2015-12-25 2016-03-23 山西乐普节能技术有限公司 High voltage power-saving system with seamless connection function
CN109411213A (en) * 2018-09-27 2019-03-01 江苏亚威变压器有限公司 A kind of three-dimensional winding iron core adjustable reactor
CN112992518A (en) * 2021-03-22 2021-06-18 保定天威保变电气股份有限公司 Three-phase adjustable parallel reactor wiring method adopting switch connection type tapping windings
CN112992511A (en) * 2021-03-22 2021-06-18 保定天威保变电气股份有限公司 Three-phase adjustable parallel reactor wiring structure adopting fixed connection type tapping windings
CN113539648A (en) * 2021-07-08 2021-10-22 旭宸(上海)能源科技有限公司 Double-energy-saving intelligent transformer with three-dimensional roll iron core
DE102021119659A1 (en) 2021-07-28 2023-02-02 Florian Fenske Controllable inductor and method for limiting an electric current

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