CN101452758B - Tap switch fixed contact array of unequal turn positive and negative pressure regulating manner - Google Patents
Tap switch fixed contact array of unequal turn positive and negative pressure regulating manner Download PDFInfo
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- CN101452758B CN101452758B CN2007101586871A CN200710158687A CN101452758B CN 101452758 B CN101452758 B CN 101452758B CN 2007101586871 A CN2007101586871 A CN 2007101586871A CN 200710158687 A CN200710158687 A CN 200710158687A CN 101452758 B CN101452758 B CN 101452758B
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Abstract
The invention relates to a fixed contact array for a tapping switch with a positive and reverse voltage regulation mode in transformer field. Variable array fixed contacts Xo, tail end fixed contacts X, Y, and Z of various phases, a fixed contact K of a primary coil, fixed contacts 1, 2, 3 ellipsis of voltage regulation coils, and connection conductors L of the fixed contacts form array changing methods such as a star connection array, a star connection grounding array and an angle connection array, so as to adapt to a positive and reverse voltage regulation tapping switch with circular switching and planar switching, and meet the need of unequal turn change of voltage regulation coils of a transformer. The array, overcoming the disadvantages of the prior art, has the following advantages: 1, the array has simplified arrangement and replaces an eight-line fixed contact structure with a seven-line fixed contact structure; 2, the connection conductors L among the fixed contacts finish the telex communication inside the switch, and the array has a tight and reliable structure; and 3, the change of the array is convenient, quick, orderly, diversified and normative.
Description
Technical field
The present invention relates to the tap switch fixed contact array of a kind of unequal turn positive and negative pressure regulating manner of field transformer, array is meant that its all kinds of difference in functionalitys decide the formation of contact and arrange specifically, and promptly it is moving, decide the switching zoning of contact and decide the laying rule of contact, the group configuration formula of fax connection.
Background technology
At present, general transformer summarizes to get up nothing more than there being two kinds with the distribution group configuration formula of the tap switch fixed contact of positive and negative pressure regulating manner, and promptly a kind of is that circumference formula switching another kind is that plane formula switches.The tap switch fixed contact distribution group configuration formula of 4 taps, the 5 gear positive-negative voltage-regulations that only connect with a kind of star is that example illustrates it below, as depicted in figs. 1 and 2; This example is only shown A phase (shunting switch or single-phase or two-phase or three-phase are because each phase structure is basic identical, so slightly).Wherein Fig. 1 is, decides the contact circumference and switches drum-shaped shunting switch and decide contact distribution group configuration formula simplified schematic diagram; It can represent pipe (tube) shape, cydariform, cage type, etc. the pattern shunting switch; Fig. 2 is, decides the contact plane and switches strip structure tap switch fixed contact distribution group configuration formula simplified schematic diagram, and it can represent pattern shunting switchs such as bar shaped, plate shape.Fig. 2 also can be considered Fig. 1 dissects expansion at M and N place plane graph again, this be since they to decide contact distribution group structure rule identical.
In the figure: X
0Be that star connects and decides contact, X is that end is decided contact to A mutually, K connects the tap of transformer main coil to decide contact, 1 and 2 and 3 is respectively that the contact, 4 and 4 ' respectively of deciding that is connected with the tap of each section of transformer voltage regulation coil is represented left and right two annular dynamic contacts during A mutually, the 5th, connect firmly the shunting switch moving contact and synchronize them rotating drive shafts, the 6th, the outer insulator of shunting switch, L is that all kinds of identical companies that decide fax connection between the contact lead, because of it decides to establish between the contact at all kinds of differences, lead L length and only be suitable for all kinds of spacings of contact of deciding own mutually so respectively connect.As depicted in figs. 1 and 2, X
0By its suitable mutually connect lead L and A mutually X decide contact fax connection, each decides also to lead L fax connection by its suitable mutually company between the contact K, and each pressure regulation to decide contact 1,2,3 also be to be only identically to decide contact and be communicated with its corresponding transformer coil tap fax all kinds of with a cable by suitable mutually the company leading L and be communicated with from phase fax separately, connecting the purpose of leading.More than all kinds of outer surfaces that L is located at shunting switch outer insulator 6 of leading of deciding contact, these exposed companies lead L often needs to cover the insulation letter again, to prevent in transformer and it is close between electric conductor and discharges.
W represents the main coil of certain number of turn, W among the figure
1Represent one section voltage regulation coil of the number of turn between 2 to 3 taps, W
2Represent one section voltage regulation coil of the number of turn between 1 to 2 tap; In shunting switch institute each phase of tool (this figure only shows the A phase), two annular dynamic contacts 4 and 4 about requirement ' driving rotation synchronously by power transmission shaft 5 switches and corresponding with it decide contact by form distribution group structure among the figure all kinds of and finish the variation that star connects positive and negative pressure regulating manner and make up to realize the different numbers of turn of transformer coil.As shown in table 1:
Table 1
The main weak point of tap switch fixed contact distribution group configuration formula that the positive and negative pressure regulating manner star that this current transformer generally adopts connects is:
1) prior art is that star connects and decides contact X
0Be communicated in the outside of shunting switch outer insulator, (X in Fig. 1 in each alternate fax
0Position display is outside the circle of outer insulator right side, and correspondence position is represented by dotted lines it in Fig. 2), often need transformer factory's family expenses cable to connect by the outside, make the tight inadequately keen-witted and capable of shunting switch manufacturing, increased user's work load;
2) electric conductor discharge contiguous in L and the transformer is led for preventing these exposed companies in all kinds of outsides that L also is located at shunting switch outer insulator 6 more of self leading of deciding contact of voltage regulation coil tap connection, and also to cover one and enclose insulating cylinder, many consumption materials, the apprentice increases operation;
3) when specified gear, deciding contact K needs to decide contact 2 by moving contact 4 ' cross-over connection, decide contact X again and decide contact 2 by moving contact 4 cross-over connections again, be to be communicated with and main coil W could to be introduced in the circuit by the fax of deciding contact 2, finish specified shelves pressure regulation process, in the design of circuit, this has done beyond doubt and has repeated to be provided with;
4) present, at cydariform, and even in the positive and negative pressure regulating manner shunting switchs such as tubular bar shaped, plate shape, above-mentionedly decide sets of contacts configuration formula and solved voltage regulation coil and does not wait the method for circle combination, but still make it organize structure not reaching simplification though use.Fig. 1 and Fig. 2 in the prior art are looked in sight, this positive-negative voltage-regulation (star connects) 4 taps 5 gear shunting switchs what decide that sets of contacts configuration formula adopts is that eight contact combinations that are ranked form, if adopt seven contact combinations that are ranked to form and just seem complicated by contrast with the following fixed contact array of the present invention that provides.
Summary of the invention
The objective of the invention is to, a kind of positive and negative pressure regulating manner tap switch fixed contact array is provided, its array is to decide the contact group configuration formula more tight, that more simplify of arranging, formation that they are all kinds of decides contact are arranged, are switched zoning, lay rule, and that fax is communicated with is all more scientific and reasonable, tend to reach perfection.Having got rid of above the deficiencies in the prior art part fully, and improved the reliability of function, more importantly is the mobility that develops between various arrays.
The present invention adopts technical scheme as described below to realize: the fixed contact array of research and design, all kinds of of its group structure decide contact and include: be distributed in shunting switch institute tool respectively the change in formation in mutually decide contact X
oA end mutually decides contact X, B end mutually decides contact Y, C end mutually decides contact Z, what be connected with the main coil tap decides contact K, each tap of several and voltage regulation coil is connected respectively decides contact, several similar companies that decide the mutual connection of fax voluntarily of contact by above-mentioned phase lead L, all kinds ofly decide contact and connect to lead according to the order of sequence to arrange by above-mentioned, group constitutes the fixed contact array of unequal turn positive and negative pressure regulating manner, each is moving in mutually at institute's tool, decide the contact switching and all be divided into a left side, right two districts: have in the district of a left side positive sequence switch that moving contact 4 is rotated counterclockwise or from top to bottom translation by gear respectively cross-over connection each two adjacently decide contact, have in the right district inverted sequence switching moving contact 4 ' turn clockwise or from bottom to top translation each two adjacently decides contact by the cross-over connection of gear difference; Its characteristics are: each phase array left side district accept that moving contact 4 positive sequences switch several decide bank of contacts cloth and be followed successively by: what connect the terminal tap of voltage regulation coil decides contact 1, terminally mutually decide the change in formation that contact X, Y, Z even lead and decides contact X with it
0, connect tapped several taps of voltage regulation coil and decide contact 2 or will connect tapped several taps of voltage regulation coil to decide contact 2,2,2 taps placed in the middle and decide contact and make the occupy-place of no any fax connection and decide contact 0, then to decide contact be 2,0,2 to its several taps, and decides contact X through this change in formation in mutually
0Connect that this that lead is terminal mutually decide contact X, Y, Z, the tap of connection voltage regulation coil head end decide contact 3; And the right district of each phase array, several that accept that another moving contact (4 ') inverted sequence switches are decided bank of contacts cloth and are followed successively by: with fail to agree originally that the district is connected that the tap of voltage regulation coil head end decide that contact 3 even leads decide contact 3, fail to agree with it and distinguish the change in formation and decide contact X
0Connect the change in formation of leading and decide contact X
0, be connected with left side district the terminal tap of voltage regulation coil decide contact 1 connect lead decide contact 1, and they are decided contact K at its each ortho position separately with several taps of the same tap of main coil end respectively.
In each fixed contact array left side district in mutually of shunting switch institute tool,, must just be that contact X is decided in the change in formation in its array right side district when several of tap are adjacent respectively when decide contact 2 and being switched cross-over connections by left side district moving contact 4 with the same centre tap of voltage regulation coil
0Be connected the terminal tap of main coil and decide contact K by right side district moving contact 4 ' coordinate synchronization switching cross-over connection.
When transformer needs shunting switch to have deciding the contact star and connecing array of unequal turn positive and negative pressure regulating manner, then contact X is decided in the change in formation of its A, B, C three-phase
0Perforation connects as one; If when transformer needs shunting switch to be changed to have deciding the contact star and connecing ground array of unequal turn positive and negative pressure regulating manner, then contact X is decided in the change in formation of its A, B, C three-phase
0Any part that perforation connects as one carries out outlet ground connection; And when transformer need shunting switch to be changed to have unequal turn positive and negative pressure regulating manner decide contact corner connection array the time, then respectively contact X is decided in its A phase the change in formation
0With B main coil head end tap mutually, contact X is decided in the change in formation of B phase
0With C main coil head end tap mutually, contact X is decided in the change in formation of C phase
0With A mutually the tap of main coil head end by each fax of this described order connection; Perhaps by the above order conversely: promptly press the change in formation of A phase and decide contact X
0With C main coil head end tap mutually, contact X is decided in the change in formation of C phase
0With B main coil head end tap mutually, contact X is decided in the change in formation of B phase
0With A mutually each fax of order of main coil head end tap be communicated with, and the contact the change in formation of deciding of organizing structure more than it is again all laid in the inside of shunting switch outer insulator 6 and is finished.
" shunting switch institute each phase of tool " mentioned above be meant when shunting switch be single-phase or two-phase or be each phase that three phase times are had.The formation that more than is the technical program fixed contact array is arranged and the switching zoning, and the laying rule of its array, the group configuration formula that fax is communicated with are provided below.Because it is a positive and negative pressure regulating manner, must realize voltage regulation coil W
1And W
2Two number of turn sections can positive and negative two in place in circuit to variation, so require to be laid in the moving contact 4 and 4 in two districts about array ' switch simultaneously cross-over connection in about correspondence two district's diverse locations and relevant tap with voltage regulation coil links to each other two groups similarly decide contact.Here should be noted that two districts there is no the absolute position about array with regard to circuit theory,, can replace mutually as long as relevant structure also adjusts accordingly.
In the technical program, each phase fixed contact array left side district: contact X is decided in the change in formation
0Decide contact with shunting switch institute each corresponding end of tool respectively, i.e. A phase X, B phase Y, C phase Z has mutually the company of suitable length by each and leads L fax and be communicated with; Two decide contact and must decide contact with the corresponding similar two first and last ends in the right district of array and have mutually the company of suitable length lead L fax by it to be communicated with voltage regulation coil head and end sequence tap connects, several are decided contact with voltage regulation coil middle part sequence connection similar and then lead L fax connection voluntarily each other by having the company that fits length mutually;
The right district of each phase fixed contact array: contact X is decided in the change in formation
0Carry out different fax by its different arrays and be communicated with, star connects fixed contact array if shunting switch is positive and negative pressure regulating manner, then X
0Connecting fax at each alternate head and the tail links into an integrated entity; If shunting switch is a positive and negative pressure regulating manner to be decided the contact star and connects ground array, then again with X
0Any part ground connection that fax is communicated with; And if shunting switch to be positive and negative pressure regulating manner decide contact corner connection array, then with each X in mutually of institute's tool
0Inserting adjacent another phase coil head end fax successively is communicated with.Several connection main coil taps are decided contact K and are even led L fax connection voluntarily each other by its suitable mutually length; Two decide contact and decide contact with array left side district similar two respectively and fit length mutually by it and even lead L fax and be communicated with voltage regulation coil head and end sequence connects.
Fixed contact array by technique scheme is suitable for single-phase or two-phase or three phase voltage regulating coil unequal turn positive and negative pressure regulating shunting switch, also is fit to wait the circle situation naturally;
Be suitable for moving, decide tap switches such as that the contact circumference switches is tubular, cydariform, cage type by the fixed contact array of technique scheme, also be suitable for moving, decide the tap switches such as bar shaped, plate shape of contact plane switching;
Beneficial effect by the fixed contact array of technique scheme is to have overcome present the deficiencies in the prior art part.No matter one is that star connects array, or star connects ground array, or the corner connection array, its each decide fax that contact leads and be communicated with and all finish in outer insulator 6 inside of shunting switch, make the shunting switch article construction tight keen-witted and capable, circuit side connector is just firm.Its two, the inside that L all is laid in shunting switch outer insulator 6 is led in self connecting of voltage regulation coil tap, just makes three-phase save three sections insulating cylinder guard shields altogether, labor and material saving does not have exposed conductor yet, need not to take into account the generation of discharge, and is safe and reliable.Its three, when the specified gear of its array, each is decided contact K and runs through each the change in formation mutually and decide contact X with the main coil tap connects
0Directly be switched cross-over connection, finish and insert W circle main coil task in the circuit.Brief and concise, function improves.Its four, that fixed contact array of the present invention is arranged is tight, scientific and reasonable, compare with the shunting switch of homotype positive-negative voltage-regulation in the present prior art, can save at least one group in each phase and decide contact configuration, succinct circuit, the structure of refining, diameter reduction.Its five, contact X is decided in the exclusive the change in formation of the present invention
0Make the differentiation maneuverability between the various arrays, fast simplification.
Description of drawings
Following Fig. 3 extremely positive-negative voltage-regulation tap changer shown in Figure 8 is applicable to that all voltage regulation coil does not wait turns transformer.
Fig. 1 is: the positive and negative pressure regulating manner 4 taps 5 gear drum-shaped shunting switch A that prior art manufactures and designs two working sections mutually analyse and observe and circuit connection simplified schematic diagram;
Fig. 2 is: Fig. 1 cuts back plane open from M and N and launches, and also to be that positive and negative pressure regulating manner 4 taps 5 gear strip-shape tap switch A that prior art manufactures and designs overlook mutually moving, decide contact plane distribution simplified schematic diagram;
Fig. 3 is: technical solution of the present invention first embodiment, for positive and negative pressure regulating manner 4 taps 5 gear stars meet the tubular shunting switch A of array, B, C three-phase six working sections are analysed and observe and circuit connects simplified schematic diagram;
Fig. 4 is: Fig. 3 cuts back plane open from M and N and launches, and overlooks to decide that the contact star connects the ground array plane distribution and circuit connects simplified schematic diagram;
Fig. 5 is: technical solution of the present invention second embodiment, overlook for positive and negative pressure regulating manner 4 taps 5 gear strip-shape tap switch A, B, C three-phase and to decide the contact star and connect that array plane distributes and circuit connects simplified schematic diagram, it also is the commentaries on classics shape form of Fig. 4, its fixed contact array distribution principle is constant, and its circuit catenation principle is identical;
Fig. 6 is: technical solution of the present invention the 3rd embodiment, for the tubular shunting switch A of positive and negative pressure regulating manner 4 taps, 5 gear corner connection arrays, B, C three-phase six working sections are analysed and observe and circuit connects simplified schematic diagram;
Fig. 7 is: Fig. 6 cuts the back plane expansion open from M and N, overlooks and decides distribution of contact corner connection array plane and circuit connection simplified schematic diagram thereof;
Fig. 8 is: technical solution of the present invention the 4th embodiment, overlook for positive and negative pressure regulating manner 4 taps 5 gear strip-shape tap switch A, B, C three-phase and to decide that contact corner connection array plane distributes and circuit connects simplified schematic diagram, it also is the commentaries on classics shape form of Fig. 7, but its fixed contact array distribution principle is constant, and its circuit catenation principle is identical.
Specific embodiment
Further specify four embodiment of the present invention below in conjunction with accompanying drawing.
First embodiment as shown in Figure 3 and Figure 4, for positive and negative pressure regulating manner 4 taps 5 gear stars connect the tubular shunting switch of ground array.Because the present invention is only at fixed contact array, so carefully do not show its entire infrastructure, detailed survey can be introduced " excitation-free positive-negative voltage-regulation tap changer " patent No. ZL03275712.3 accompanying drawing.
Among the figure, 1 and 2 and 3 is to decide contact, X with each tap of voltage regulation coil by what lead fax was communicated with
0Be that contact is decided in the change in formation, itself and shunting switch institute tool each mutually, be A phase X, B phase Y, ends such as C phase Z are decided contact and are led L fax connection by connecting separately respectively, K is the contact of deciding that is communicated with the fax of main coil tap lead, the 4th, be rotated counterclockwise the moving contact that switches fixed contact array left side district, 4 ' be to turn clockwise to switch the moving contact in the right district of fixed contact array, the 5th, drive the power transmission shaft that fixed contact array is switched in each phase moving contact rotation, have on it along contrary two to a minute referral wheel mechanism, the 6th, the shunting switch outer insulator, be two cross-sectional view in each phase fixed contact array Zuo Qu and right district shown in the figure, its actual outer insulator is that the continuous integral insulation tube that these six cross sections join constitutes.Decide contact among the figure and with solid line be X mutually with the structure that is connected of outer insulator
0Star meets also in outer insulator the X mutually with A, and B phase Y, C phase Z connect with it and lead L fax and connect, and can draw ground connection at any part that its fax connects.
Main coil W tap K, voltage regulation coil W
1And W
2Tap 1 and 2 and 3 decide contact with corresponding each respectively by lead and be connected, represent with solid line among the figure.
4 shunting taps of present embodiment be K, 1,2 with 3 its fixed contact arrays each by the switchings of 4 and 4 ' two moving contacts, finish 5 gear change and the pressure regulation task is as shown in table 2.
Table 2
This embodiment has realized the premium properties of the technical program fixed contact array fully, circuit is succinct, structure is tight, labor and material saving, safe and reliable, directly put in place, function raising, volume-diminished, design science.
In practical structures, the L that leads that each of Fig. 3 and Fig. 4 decided contact carries out in outer insulator 6, leads L and is drawn in outside the circle of outer insulator 6 and connect among the figure, only represents the annexation of its circuit.
In practical structures, transformer A, B, C three-phase coil also can not intert between the circular cross-section of shunting switch, Fig. 3 and Fig. 4 have also only shown the circuit connecting relation of shunting switch and transformer coil, be in order to save a kind of Butut of drawing, six viewgraph of cross-section also are to have rotated 90 ° view by reality among natural Fig. 3.
In practical structures, the X of each phase of Fig. 3
0Deciding contact all in the circumferential same position of six cross sections, obviously is can be concatenated into an elongated neutral point to decide contact, X among this Fig. 3 and Fig. 4
0Ground connection and unearthed among Fig. 5 is to show in the reality the different demands of two kinds of structures are seen to look into and represented X among Fig. 4
0Connecting line at each alternate bending taken place, this is that this practical structures of tubular switch is made X because the planar development of M and N is not in circumferential same position institute extremely in the corresponding diagram 3
0Three connect is because technologic requirement in producing, and shown in the figure be for convenience in Fig. 5 second embodiment express the commentaries on classics shape requirement of technical solution of the present invention.
The 2nd embodiment of the present invention as shown in Figure 5, for positive and negative pressure regulating manner 4 taps 5 gear stars connect strip-shape tap switch, because the present invention is only at fixed contact array, it is the accompanying drawing of ZL200420051377.1 that its detail structure chart of Therefore, omited, detailed survey please be introduced " the positive and negative accent transmission device of no excitation stripe shape shunting switch " patent No..
In practical structures, A shown in Figure 5, B, C three-phase moving contact 4 and 4 ' do reciprocal reciprocal operation (as arrow indication among the figure) by two power transmission shafts that parallel 5 and 5 ' drive respectively to contact and switch each phase fixed contact array, to realize each transforming gear of shunting switch.Two power transmission shafts 5 and 5 among the figure ' represent by double dot dash line.
In practical structures, its fixed contact array is identical with last embodiment 1 essence, can be considered the plane graph that embodiment 1 is launched by M and N place.Its pressure regulation task 5 gear change of finishing are also as shown in table 2, and its premium properties is also identical with last example, and just it is realized in bar switch.
The 3rd embodiment of the present invention is the tubular shunting switch of positive and negative pressure regulating manner 4 taps, 5 gear corner connection arrays as shown in Figure 6, and its array is different with embodiment 1, just the X among the embodiment 1
0It is that A, B, C three connect that contact is decided in the change in formation, and each phase X among the embodiment 3
0The change in formation is decided contact and is joined with adjacent phase coil head end successively respectively, and it is identical that other in the array decided contact arranging rule two examples.
5 grades of variations of the pressure regulation task that present embodiment 3 is finished are also as shown in table 2, and the premium properties that is had is also identical with embodiment 1 and 2.
Four embodiment of the invention as shown in Figure 8, it is bar shaped (or plate shape) positive-negative voltage-regulation 4 taps 5 gear tap switch fixed contact corner connection array simplified schematic diagram.
Fixed contact array and the foregoing description 3 are basic identical among the figure, and it can be considered the plane graph that embodiment 3 is launched by M and N place.To be its array left side district moving contact 4 with the right district of array moving contact 4 ' be do in the parallel plane on plane, array place difference that each decides contact in the reciprocating type incorgruous switching array, and its pressure regulation task 5 gear change of finishing are also as shown in table 2.Its premium properties is also identical with above all examples.Just it is realized in bar shaped (or plate shape) switch.
More than 4 embodiment; lift and be 4 taps, 5 gear tap switch fixed contact arrays; it also has the congeniality fixed contact array of 5 taps, 7 gears, 6 taps, 9 gears; fail exhaustive; but it all falls into the desired protection range of this patent, all follows the essential feature and the unique feature that is different from prior art of the immediate prior art of the technical program introducing.
More than 4 embodiment, narrated star and connect and decide contact circular array, star and connect and decide contact planar array, star ground connection and decide contact circular array, star ground connection and decide contact planar array and corner connection and decide the method that contact circular array, corner connection are decided fixed contact array differentiation such as contact planar array.Yet this is 4 taps, 5 driving switch scopes, if 5 taps, 7 gears in addition, 6 taps, 9 gears etc. change wider.National patent " the tubular tap switch fixed contact array of no excitation " (patent No. ZL200320100539.1) is to record and narrate to decide a chain of array of contact Eight Diagrams, only be suitable for turn positive and negative pressure regulating manner variations such as voltage regulation coil, and array of the present invention not only is applicable to turn positive and negative pressure regulating manner variations such as voltage regulation coil, is applicable to that also the voltage regulation coil unequal turn positive and negative pressure regulating manner changes.
Claims (3)
1. the tap switch fixed contact array of a unequal turn positive and negative pressure regulating manner, it comprises, is distributed in each the change in formation in mutually of shunting switch institute tool and decides contact (X
o), A end mutually decides contact (X), B end mutually decides contact (Y), C end mutually decides contact (Z), what be connected with the main coil tap decides contact (K), several decide contact with the tap of each section voltage regulation coil is connected respectively, several similar companies that decide the mutual connection of fax voluntarily of contact by above-mentioned phase lead (L), all kinds ofly decide contact and connect to lead according to the order of sequence to arrange by above-mentioned, group constitutes the unequal turn positive and negative pressure regulating manner fixed contact array, institute's tool each mutually in, moving, decide the contact switching and all be divided into a left side, right two districts: have in the district of a left side positive sequence switch that moving contact (4) is rotated counterclockwise or from top to bottom translation by gear respectively cross-over connection each two adjacently decide contact, have inverted sequence switching moving contact (4 ') to turn clockwise in the right district or from bottom to top translation each two adjacently decides contact by the cross-over connection of gear difference; Its characteristics are: each phase array left side district accept that moving contact (4) positive sequence switches several decide bank of contacts cloth and be followed successively by: what connect the terminal tap of voltage regulation coil decides contact (1), terminally mutually decide the change in formation that contact (X, Y, Z) even leads and decides contact (X with it
0), several taps that connect the middle same tap of voltage regulation coil are decided contact (2), decide contact (X with this interior mutually the change in formation of process
0) connect that this that lead is terminal mutually decide contact (X, Y, Z), the tap of connection voltage regulation coil head end decide contact (3); And the right district of each phase array, several that accept that another moving contact (4 ') inverted sequence switches are decided bank of contacts cloth and are followed successively by: with fail to agree originally that the district is connected that the tap of voltage regulation coil head end decide that contact (3) even leads decide contact (3), fail to agree with it and distinguish the change in formation and decide contact (X
0) connect the change in formation lead and decide contact (X
0), be connected with left side district the terminal tap of voltage regulation coil decide contact (1) connect lead decide contact (1), and they are decided contact (K) at its each ortho position separately with several taps of the same tap of main coil end respectively.
2. according to above claim 1, the tap switch fixed contact array of unequal turn positive and negative pressure regulating manner, its characteristics are: in each fixed contact array left side district in mutually of shunting switch institute tool, when several of tap are adjacent respectively when decide contact (2) and being switched cross-over connection by left side district's moving contact (4) with the same centre tap of voltage regulation coil, must just be that contact (X is decided in the change in formation in its array right side district
0) be connected the terminal tap of main coil and decide contact (K) by moving contact (4 ') the coordinate synchronization switching cross-over connection of right district.
3. according to above claim 1, the tap switch fixed contact array of unequal turn positive and negative pressure regulating manner, its characteristics are: when transformer needs shunting switch to have deciding the contact star and connecing array of unequal turn positive and negative pressure regulating manner, then contact (X is decided in the change in formation of its A, B, C three-phase
0) connect and to connect as one; If when transformer needs shunting switch to be changed to have deciding the contact star and connecing ground array of unequal turn positive and negative pressure regulating manner, then contact (X is decided in the change in formation of its A, B, C three-phase
0) connect any part connect as one and carry out outlet ground connection; And when transformer need shunting switch to be changed to have unequal turn positive and negative pressure regulating manner decide contact corner connection array the time, then respectively contact (X is decided in its A phase the change in formation
0) with B main coil head end tap mutually, contact (X is decided in the change in formation of B phase
0) with C main coil head end tap mutually, contact (X is decided in the change in formation of C phase
0) with A mutually the tap of main coil head end be communicated with by each fax of this described order or by each fax connection of this described inverted sequence; And its contact the change in formation of deciding of organizing structure is again all laid in the inside of shunting switch outer insulator (6) and is finished.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101586871A CN101452758B (en) | 2007-12-04 | 2007-12-04 | Tap switch fixed contact array of unequal turn positive and negative pressure regulating manner |
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| CN2007101586871A CN101452758B (en) | 2007-12-04 | 2007-12-04 | Tap switch fixed contact array of unequal turn positive and negative pressure regulating manner |
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| CN101452758A CN101452758A (en) | 2009-06-10 |
| CN101452758B true CN101452758B (en) | 2011-09-28 |
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|---|---|---|---|---|
| CN2259676Y (en) * | 1996-03-19 | 1997-08-13 | 徐优燕 | Non-excitation bar-type tapping switch |
| CN2433720Y (en) * | 2000-07-28 | 2001-06-06 | 武汉泰普变压器开关有限公司 | No-field positive-and-negative voltage regulating tap charger |
| CN2638214Y (en) * | 2003-07-14 | 2004-09-01 | 浙江省三门腾龙电器有限公司 | Excitationless positive and negative adjusting tap changer |
| CN2662419Y (en) * | 2003-10-13 | 2004-12-08 | 浙江省三门腾龙电器有限公司 | Fixed contact array of excitation free tube type tapping switch |
| CN2716986Y (en) * | 2004-05-28 | 2005-08-10 | 浙江省三门腾龙电器有限公司 | Positive and negative regulating transmission means for non-excitation bar-type tapping switch |
| CN1979703A (en) * | 2006-11-13 | 2007-06-13 | 武汉泰普变压器开关有限公司 | Excitation-free positive-negative voltage-regulation tap changer |
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| CN101452758A (en) | 2009-06-10 |
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