CN106026682A - Controllable switching multi-gear output intelligent transformer apparatus - Google Patents

Controllable switching multi-gear output intelligent transformer apparatus Download PDF

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Publication number
CN106026682A
CN106026682A CN201610382279.3A CN201610382279A CN106026682A CN 106026682 A CN106026682 A CN 106026682A CN 201610382279 A CN201610382279 A CN 201610382279A CN 106026682 A CN106026682 A CN 106026682A
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CN
China
Prior art keywords
transformer
output
contactor
input
phase
Prior art date
Application number
CN201610382279.3A
Other languages
Chinese (zh)
Inventor
朱纯
张国强
王小松
汪强
熊织明
肖峰
彭祥
邓国标
华晨
王贤
李盈盈
季方
刘波
Original Assignee
国家电网公司
国家电网公司交流建设分公司
华东送变电工程公司
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Application filed by 国家电网公司, 国家电网公司交流建设分公司, 华东送变电工程公司 filed Critical 国家电网公司
Priority to CN201610382279.3A priority Critical patent/CN106026682A/en
Publication of CN106026682A publication Critical patent/CN106026682A/en

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/10Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers
    • H02M5/12Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers for conversion of voltage or current amplitude only

Abstract

The invention discloses a controllable switching multi-gear output intelligent transformer apparatus. The controllable switching multi-gear output intelligent transformer apparatus comprises a transformer and an array type electric control contactor, wherein the primary winding of the transformer comprises one or more than two taps, or the secondary winding of the transformer comprises one or more than two taps, or the primary winding and the secondary winding of the transformer both comprise taps; the primary winding and the secondary winding of the transformer can be interconvertible; primary winding and the secondary winding of the transformer both comprise three phases; the transformer apparatus comprises an input end and an output end; the input end is connected with the primary winding through one or more three-phase contactors while the output end is connected with the secondary winding through one or more three-phase contactors; the array type electric control contactor receives an external voltage level switching instruction and executes a contactor action which is corresponding to the voltage level switching instruction so as to switch the combination of the input end and the output end of the transformer apparatus. The apparatus can output multi-gear voltages; the power supply voltage can be subjected to voltage boosting and voltage drop of different levels; and requirements of multiple kinds of test objects can be satisfied.

Description

A kind of many gears output Intelligent transformer device of controlled switching
Technical field
The present invention relates to technical field of electric equipment, particularly relate to many gears output of a kind of controlled switching Intelligent transformer device.
Background technology
In high voltage electrical test, it is often necessary to use testing transformer supply voltage is boosted or Blood pressure lowering, to meet the high pressure level demand of test specimen.If the type of test is different or test specimen Kind is different, and required test voltage is different.Accordingly, it would be desirable to arrange multiple different no-load voltage ratio Transformator, or, the output of single transformer Secondary Winding is set.
But, both modes that prior art uses, in process of the test during wiring, need basis Test voltage chooses corresponding voltage gear or a certain separate unit testing transformer, the most manually carries out line And checked.When needing the multiple electrical test carrying out different electric pressure, be repeated several times Stating process, so that test set-up procedure is the longest, workload is the biggest.It addition, enter every time When row changes wiring, needing to reexamine wiring, along with the increase of number of times, the hidden danger of wiring error is also Increasing therewith, the risk of test is consequently increased.
To sum up, those skilled in the art need to provide a kind of device for transformer, it is possible to when electrical test, Supply voltage is carried out different grades of boosting or blood pressure lowering, thus meets the needs of multiple test specimen.
Summary of the invention
In order to solve above technical problem present in prior art, the invention provides a kind of controlled throwing The many gears output Intelligent transformer device cut, it is possible to when electrical test, supply voltage is carried out not The boosting of ad eundem or blood pressure lowering, thus meet the needs of multiple test specimen.
The present invention provides many gears output device for transformer of a kind of controlled switching, including: transformator and Array electric control contactor;
Described array electric control contactor includes multiple three-phase contactor;
The armature winding of described transformator includes tap, or, the secondary windings of described transformator includes taking out Head, or, the armature winding of described transformator and secondary windings all include tap;
Armature winding and the secondary windings of described transformator are interchangeable;
The armature winding of described transformator and secondary windings all include three-phase;
This device for transformer includes input and outfan, and described input is by one or more described Three-phase contactor connects described armature winding, and described outfan contacts by one or more described three Device connects described secondary windings;
Electric pressure switching command outside the reception of described array electric control contactor, performs and described electricity The catalyst action that pressure grade switching command is corresponding, to switch input and the output of this device for transformer The combination of end.
Preferably, when the armature winding of described transformator includes tap, the tap of described armature winding For one or more;
When the secondary windings of described transformator includes tap, the tap of described secondary windings be one or Two or more.
Preferably, also include: input voltage measurement unit and control unit;
Described input voltage measurement unit, for detecting the input voltage of this device for transformer;
Described control unit, is used for judging when described input voltage exceedes setting input voltage threshold value, control Make this device for transformer to disconnect with power supply.
Preferably, also include: input electric cur-rent measure unit;
Described input electric cur-rent measure unit, for detecting the input current of this device for transformer;
Described control unit, is additionally operable to judge when described input current exceedes setting input current threshold value, Control this device for transformer to disconnect with power supply.
Preferably, also include: output voltage detector unit;
Described output voltage detector unit, for detecting the output voltage of this device for transformer;
Described control unit, is additionally operable to judge when described output voltage exceedes setting output voltage threshold value, Control this device for transformer and stop output.
Preferably, also include: output electric current measure unit;
Described output electric current measure unit, for detecting the output electric current of this device for transformer;
Described control unit, is additionally operable to judge when described output electric current exceedes setting output current threshold, Control this device for transformer and stop output.
Preferably, when the armature winding of described transformator includes a tap, described armature winding bag Include three terminals, be respectively as follows: the first end, tap terminals and the second end;Described array electric control contactor Including: the first three-phase contactor and the second three-phase contactor;
First end of armature winding described in three-phase connects this transformator by described first three-phase contactor and fills The input put;
The tap terminals of armature winding described in three-phase connects this transformator by described second three-phase contactor and fills The input put;
Second end of armature winding described in three-phase links together.
Preferably, described array electric control contactor also includes: the 3rd three-phase contactor;
The input of this device for transformer connects this device for transformer by described 3rd three-phase contactor Outfan;
When described 3rd three-phase contactor Guan Bi, when other three-phase contactors disconnect, this device for transformer Output end voltage equal with input terminal voltage.
Preferably, described array electric control contactor also includes: the 4th three-phase contactor, the 5th three-phase Catalyst, the 6th three-phase contactor and the 7th three-phase contactor;
The input that described 4th three-phase contactor is connected to this device for transformer connects with the described 3rd 3 Between tentaculum, described 5th three-phase contactor is connected to the input and the described 3rd of this device for transformer Between three-phase contactor;
Described 6th three-phase contactor is connected to the defeated of described 3rd three-phase contactor and this device for transformer Going out between end, described 7th three-phase contactor is connected to described 3rd three-phase contactor and fills with this transformator Between the outfan put;
First end of described transformer secondary output winding connects this transformator by described 6th three-phase contactor The outfan of device, the first end of described transformer secondary output winding is by described 7th three-phase contactor even Connect the outfan of this device for transformer;Second end of the secondary windings of described transformator links together.
Preferably, when described armature winding connects power supply and supply voltage is 400V, by switching institute Stating the different conditions of catalyst in array electric control contactor, the output voltage of this device for transformer can be 400V, 600V and 800V;
When described secondary windings connects power supply and supply voltage is 400V, by switching described array The different conditions of catalyst in electric control contactor, the output voltage of this device for transformer can be 400V, 266V and 200V.
Compared with prior art, the present invention at least has the advantage that
This device for transformer includes transformator and array electric control contactor, and device for transformer includes input And outfan, described input connects described armature winding by one or more described three-phase contactors, Described outfan connects described secondary windings by one or more described three-phase contactors;As three had During phase contact Guan Bi, the no-load voltage ratio generation effect to transformator of the winding of corresponding tap, so pass through Control different three-phase contactor Guan Bis, it is possible to achieve transformator switching no-load voltage ratio, thus transformator is permissible Export multiple output voltage, to meet the test specimen requirement to different voltages.The output of this transformator End connects test specimen, and different test specimen required voltages is different, it addition, same test specimen is carried out Different types of test, required voltage is likely to difference.This device for transformer can export many gears Voltage, it is possible to when electrical test, supply voltage is carried out different grades of boosting or blood pressure lowering, from And meet the needs of multiple test specimen.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below by right In embodiment or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, Accompanying drawing in describing below is only some embodiments described in the application, skill common for this area From the point of view of art personnel, on the premise of not paying creative work, it is also possible to obtain it according to these accompanying drawings Its accompanying drawing.
Many gears output device for transformer embodiment one of the controlled switching that Fig. 1 provides for the present invention is illustrated Figure;
Many gears output device for transformer embodiment two of the controlled switching that Fig. 2 provides for the present invention is illustrated Figure;
Many gears output device for transformer embodiment three of the controlled switching that Fig. 3 provides for the present invention is illustrated Figure.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with the present invention Accompanying drawing in embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention, Obviously, described embodiment is only a part of embodiment of the present invention rather than whole embodiments. Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise Lower obtained every other embodiment, broadly falls into the scope of protection of the invention.
Embodiment one:
Seeing Fig. 1, this figure is that many gears output device for transformer of the controlled switching that the present invention provides is real Execute example one schematic diagram.
Many gears output device for transformer of the controlled switching that the present embodiment provides, including: transformator 100 With array electric control contactor 200;
Described array electric control contactor 200 includes multiple three-phase contactor;
The armature winding of described transformator 100 includes tap, or, the secondary of described transformator 100 around Group includes tap, or, armature winding and the secondary windings of described transformator 100 all include tap;
Armature winding and the secondary windings of described transformator 100 are interchangeable;That is, this transformator 100 Input and outfan can exchange, and armature winding can connect power supply, and in turn, secondary windings also may be used To connect power supply, i.e. this transformator 100 can be as booster transformer, it is also possible to as step-down transformer.
Armature winding and the secondary windings of described transformator 100 all include three-phase;
This device for transformer includes input and outfan, and described input is by one or more described Three-phase contactor connects described armature winding, and described outfan contacts by one or more described three Device connects described secondary windings;
Such as, when armature winding includes tap, the tap terminals of armature winding contacts by different three Device connects power supply, when the three-phase contactor Guan Bi having, and the change to transformator of the winding of corresponding tap Ratio generation effect, so by controlling different three-phase contactor Guan Bis, it is possible to achieve transformator switches No-load voltage ratio, thus transformator can export multiple output voltage, to meet test specimen to different voltages Requirement.
It is understood that the device for transformer that the present invention provides can be arranged in a rack, with Outside interface only arranges input, outfan and control end.Input connects power supply, and outfan is even Connect test specimen.It addition, control end for the electric pressure switching outside the reception of array electric control contactor Order.It should be noted that electric pressure switching command can be by manually sending, it is also possible to by controlling Unit intelligence sends.Such as, when manually sending, can be operator by operation hilted broadsword throw more opens Close the three-phase contactor Guan Bi controlling correspondence.
Electric pressure switching command outside the reception of described array electric control contactor, performs and described electricity The catalyst action that pressure grade switching command is corresponding, to switch input and the output of this device for transformer The combination of end.
It should be noted that the outfan of this transformator connects test specimen, different test specimens needs Voltage is different, it addition, same test specimen carries out different types of test, required voltage is likely to Different.
This device for transformer includes transformator and array electric control contactor, and device for transformer includes input And outfan, described input connects described armature winding by one or more described three-phase contactors, Described outfan connects described secondary windings by one or more described three-phase contactors;As three had During phase contact Guan Bi, the no-load voltage ratio generation effect to transformator of the winding of corresponding tap, so pass through Control different three-phase contactor Guan Bis, it is possible to achieve transformator switching no-load voltage ratio, thus transformator is permissible Export multiple output voltage, to meet the test specimen requirement to different voltages.The output of this transformator End connects test specimen, and different test specimen required voltages is different, it addition, same test specimen is carried out Different types of test, required voltage is likely to difference.This device for transformer can export many gears Voltage, it is possible to when electrical test, supply voltage is carried out different grades of boosting or blood pressure lowering, from And meet the needs of multiple test specimen.
Embodiment two:
Seeing Fig. 2, this figure is that many gears output device for transformer of the controlled switching that the present invention provides is real Execute example two schematic diagram.
Many gears output device for transformer of the controlled switching that the present embodiment provides, when described transformator When armature winding includes tap, the tap of described armature winding is one or more;
When the secondary windings of described transformator includes tap, the tap of described secondary windings be one or Two or more.
It is understood that this transformator arranges tap at armature winding, or arrange at secondary windings Tap can select to arrange according to actual needs.It addition, the tap number arranged can also be according to need Select to arrange, this is not specifically limited by the present invention.
It addition, the device for transformer that the present embodiment provides, it is also provided with voltage and current control function, The i.e. input voltage of this device for transformer and input current, and output voltage and output electric current all can not Exceed threshold value set in advance, because this device for transformer is arranged in rack, if what power supply provided When voltage and current is the biggest, exceed the scope that this transformator can bear, be likely to result in transformator and damage Bad.During it addition, the output voltage of this transformator and output electric current are the biggest, having exceeded test specimen can hold The scope being subject to, is likely to result in test specimen and damages, accordingly, it would be desirable to be monitored it.
Specifically may refer to Fig. 2, this device for transformer also includes: input voltage measurement unit 300 He Control unit 400;
Described input voltage measurement unit 300, for detecting the input voltage of this device for transformer;
Described control unit 400, is used for judging when described input voltage exceedes setting input voltage threshold value, Control this device for transformer to disconnect with power supply.
It addition, this device for transformer can also include: input electric cur-rent measure unit 500;
Described input electric cur-rent measure unit 500, for detecting the input current of this device for transformer;
Described control unit 400, is additionally operable to judge that described input current exceedes setting input current threshold value Time, control this device for transformer and disconnect with power supply.
It addition, this device for transformer can also include: output voltage detector unit 600;
Described output voltage detector unit 600, for detecting the output voltage of this device for transformer;
Described control unit 400, is additionally operable to judge that described output voltage exceedes setting output voltage threshold value Time, control this device for transformer and stop output.
It addition, this device for transformer can also include: output electric current measure unit 700;
Described output electric current measure unit 700, for detecting the output electric current of this device for transformer;
Described control unit 400, is additionally operable to judge that described output electric current exceedes setting output current threshold Time, control this device for transformer and stop output.
Input voltage measurement unit and input electric cur-rent measure unit that the present embodiment provides can be integrated in one Rising, output voltage detector unit and output electric current measure unit can integrate.This device is arranged The monitoring of input voltage and electric current, also output voltage and the monitoring of electric current, to prevent the electricity of outside The voltage of source output or electric current are too big, and this transformator is produced harm.It addition, also this transformator of mode The voltage of output or electric current are too big, damage test specimen.When input voltage or electric current are the biggest, cutting off should Device and the connection of power supply.When output voltage or electric current are the biggest, cut off the company of this device and test specimen Connect.
Embodiment three:
Seeing Fig. 3, this figure is that many gears output device for transformer of the controlled switching that the present invention provides is real Execute example three schematic diagram.
The present embodiment includes being introduced as a example by a tap by armature winding.
When the armature winding of described transformator includes a tap, described armature winding includes three ends Son, is respectively as follows: the first end, tap terminals and the second end;Described array electric control contactor includes: the One three-phase contactor S7 and the second three-phase contactor S6;
As it is shown on figure 3, armature winding and secondary windings all include three-phase, the connection of three-phase primary windings Relation is identical, and the annexation of three-phase secondary windings is identical.
First end of every phase armature winding refers to red 800, and tap terminals refers to blue 600, and the second end refers to Be black 0.
First end of armature winding described in three-phase connects this transformation by described first three-phase contactor S7 The input of device device;
The tap terminals of armature winding described in three-phase connects this transformation by described second three-phase contactor S6 The input of device device;
Second end of armature winding described in three-phase links together, as it is shown on figure 3, black the 0 of three-phase connects It is connected together.
It is understood that when S7 closes, what the armature winding of transformator participated in no-load voltage ratio is the first end And the winding that second between end.When S6 closes, what the armature winding of transformator participated in no-load voltage ratio is tap And the winding between the second end.Such as, when the no-load voltage ratio of the armature winding Yu secondary windings needing transformator Time bigger, S7 can be selected to close, S6 disconnects.
It is understood that each three-phase contactor includes three contacts and a coil, when coil obtains During electricity, three contact actions simultaneously.Three contacts are connected in three-phase path respectively, work as the closing of contact Time, the three-phase path conducting at place.
S6 with S7 can control transformator and realize two kinds of different no-load voltage ratios, it addition, what the present invention provided Device for transformer can also realize the no-load voltage ratio of 1:1, and the most not by transformator, input is directly connected to defeated Go out end.I.e. realized by the S5 in Fig. 3.It is discussed in detail below.
Described array electric control contactor also includes: the 3rd three-phase contactor S5;
The input of this device for transformer connects this transformator by described 3rd three-phase contactor S5 and fills The outfan put;
When described 3rd three-phase contactor S5 Guan Bi, when other three-phase contactors disconnect, this transformator fills The output end voltage put is equal with input terminal voltage.
That is, when three contacts of S5 all close, between input and the outfan of this device for transformer Connecting, without transformator, now transformator is inoperative.I.e. supply voltage is applied directly to tested The input of product.Such as, supply voltage is 400V, then the input voltage of test specimen is exactly 400V.
It addition, the input of the device for transformer of present invention offer and outfan can exchange, transformator Armature winding can be as power input, in like manner, the secondary windings of transformator can also be as electricity Source input.It is described in detail below in conjunction with S1, S2 and the S3 in Fig. 3, S4.
Described array electric control contactor also includes: the 4th three-phase contactor S1, the 5th three-phase contactor S2, the 6th three-phase contactor S3 and the 7th three-phase contactor S4;
Described 4th three-phase contactor S1 is connected to the input and the described 3rd 3 of this device for transformer S5 between phase contact, described 5th three-phase contactor S2 are connected to the input of this device for transformer And between described 3rd three-phase contactor S5;
Described 6th three-phase contactor S3 is connected to described 3rd three-phase contactor S5 and fills with this transformator Between the outfan put, described 7th three-phase contactor S4 is connected to described 3rd three-phase contactor S5 And between the outfan of this device for transformer;
First end of described transformer secondary output winding connects this change by described 6th three-phase contactor S3 The outfan of depressor device, the first end of described transformer secondary output winding contacts by the described 7th 3 Device S4 connects the outfan of this device for transformer;Second end of the secondary windings of described transformator is connected to Together, as it is shown on figure 3, the second end 0 end of secondary windings is both connected to together.In the present embodiment The secondary windings of transformator does not include tap, it is to be understood that secondary windings can also include tap, Thus increase the no-load voltage ratio quantity of transformator, certainly, corresponding is also required to increase the number of three-phase contactor.
Such as, when left side is as input, S1 closes, and S2 disconnects, when right side is as outfan, S3 disconnects, and S4 closes.
When right side is as input, S3 closes, and S4 disconnects, and when left side is as outfan, S1 breaks Opening, S2 closes.
That is, the input of this device for transformer can connect power supply, it is also possible to outfan connects power supply, I.e. transformator can realize boosting, it is also possible to realizes blood pressure lowering.Such as, apply in the tested transformation of extra-high voltage In device, it can be the output voltage of the test specimen multiple grades of offer.Such as, connect when described armature winding Connect power supply and time supply voltage is 400V, by switching catalyst in described array electric control contactor Different conditions, the output voltage of this device for transformer can be 400V, 600V and 800V;When described time When level winding connection power supply and supply voltage are 400V, by switching in described array electric control contactor The different conditions of catalyst, the output voltage of this device for transformer can be 400V, 266V and 200V.
The device for transformer that the embodiment of the present invention provides, it is provided that the output voltage of multiple grades, no Manual taking out stitches or wiring must be carried out, it is only necessary to by the Guan Bi of control contactor and disconnected in testing ground Open, which save operation, and shorten test period.It addition, the present invention utilizes one Transformator, it is not necessary to use multiple stage transformator, provide cost savings and space.
The above, be only presently preferred embodiments of the present invention, not makees the present invention any pro forma Limit.Although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention.Any Those of ordinary skill in the art, without departing under technical solution of the present invention ambit, may utilize above-mentioned Technical solution of the present invention is made many possible variations and modification, or amendment by the method disclosed and technology contents Equivalent embodiments for equivalent variations.Therefore, every content without departing from technical solution of the present invention, according to this The technical spirit of invention, to any simple modification made for any of the above embodiments, equivalent variations and modification, the most still belongs to In the range of technical solution of the present invention is protected.

Claims (10)

1. many gears output device for transformer of a controlled switching, it is characterised in that including: transformation Device and array electric control contactor;
Described array electric control contactor includes multiple three-phase contactor;
The armature winding of described transformator includes tap, or, the secondary windings of described transformator includes taking out Head, or, the armature winding of described transformator and secondary windings all include tap;
Armature winding and the secondary windings of described transformator are interchangeable;
The armature winding of described transformator and secondary windings all include three-phase;
This device for transformer includes input and outfan, and described input is by one or more described Three-phase contactor connects described armature winding, and described outfan contacts by one or more described three Device connects described secondary windings;
Electric pressure switching command outside the reception of described array electric control contactor, performs and described electricity The catalyst action that pressure grade switching command is corresponding, to switch input and the output of this device for transformer The combination of end.
Many gears output device for transformer of controlled switching the most according to claim 1, its feature Being, when the armature winding of described transformator includes tap, the tap of described armature winding is one Or two or more;
When the secondary windings of described transformator includes tap, the tap of described secondary windings be one or Two or more.
Many gears output device for transformer of controlled switching the most according to claim 2, its feature It is, also includes: input voltage measurement unit and control unit;
Described input voltage measurement unit, for detecting the input voltage of this device for transformer;
Described control unit, is used for judging when described input voltage exceedes setting input voltage threshold value, control Make this device for transformer to disconnect with power supply.
Many gears output device for transformer of controlled switching the most according to claim 3, its feature It is, also includes: input electric cur-rent measure unit;
Described input electric cur-rent measure unit, for detecting the input current of this device for transformer;
Described control unit, is additionally operable to judge when described input current exceedes setting input current threshold value, Control this device for transformer to disconnect with power supply.
5. export device for transformer according to many gears of the controlled switching described in claim 3 or 4, its It is characterised by, also includes: output voltage detector unit;
Described output voltage detector unit, for detecting the output voltage of this device for transformer;
Described control unit, is additionally operable to judge when described output voltage exceedes setting output voltage threshold value, Control this device for transformer and stop output.
6. export device for transformer according to many gears of the controlled switching described in claim 3 or 4, its It is characterised by, also includes: output electric current measure unit;
Described output electric current measure unit, for detecting the output electric current of this device for transformer;
Described control unit, is additionally operable to judge when described output electric current exceedes setting output current threshold, Control this device for transformer and stop output.
7. export device for transformer according to many gears of the controlled switching described in claim 3 or 4, its Being characterised by, when the armature winding of described transformator includes a tap, described armature winding includes Three terminals, are respectively as follows: the first end, tap terminals and the second end;Described array electric control contactor bag Include: the first three-phase contactor and the second three-phase contactor;
First end of armature winding described in three-phase connects this transformator by described first three-phase contactor and fills The input put;
The tap terminals of armature winding described in three-phase connects this transformator by described second three-phase contactor and fills The input put;
Second end of armature winding described in three-phase links together.
Many gears output device for transformer of controlled switching the most according to claim 7, its feature Being, described array electric control contactor also includes: the 3rd three-phase contactor;
The input of this device for transformer connects this device for transformer by described 3rd three-phase contactor Outfan;
When described 3rd three-phase contactor Guan Bi, when other three-phase contactors disconnect, this device for transformer Output end voltage equal with input terminal voltage.
Many gears output device for transformer of controlled switching the most according to claim 8, its feature Being, described array electric control contactor also includes: the 4th three-phase contactor, the 5th three-phase contactor, 6th three-phase contactor and the 7th three-phase contactor;
The input that described 4th three-phase contactor is connected to this device for transformer connects with the described 3rd 3 Between tentaculum, described 5th three-phase contactor is connected to the input and the described 3rd of this device for transformer Between three-phase contactor;
Described 6th three-phase contactor is connected to the defeated of described 3rd three-phase contactor and this device for transformer Going out between end, described 7th three-phase contactor is connected to described 3rd three-phase contactor and fills with this transformator Between the outfan put;
First end of described transformer secondary output winding connects this transformator by described 6th three-phase contactor The outfan of device, the first end of described transformer secondary output winding is by described 7th three-phase contactor even Connect the outfan of this device for transformer;Second end of the secondary windings of described transformator links together.
Many gears output device for transformer of controlled switching the most according to claim 9, it is special Levy and be, when described armature winding connects power supply and supply voltage is 400V, by switching described battle array The different conditions of catalyst in column electric control contactor, the output voltage of this device for transformer can be 400V, 600V and 800V;
When described secondary windings connects power supply and supply voltage is 400V, by switching described array The different conditions of catalyst in electric control contactor, the output voltage of this device for transformer can be 400V, 266V and 200V.
CN201610382279.3A 2016-06-01 2016-06-01 Controllable switching multi-gear output intelligent transformer apparatus CN106026682A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103078516A (en) * 2013-01-24 2013-05-01 南京博佳机电有限公司 Automatic input voltage switching device for mah-jong machine
EP2660964A1 (en) * 2012-05-04 2013-11-06 AEG Power Solutions B.V. Electricity supply assembly with a first and a second power supply device, where the second power supply device is connected to the first power supply device
CN205178888U (en) * 2015-12-01 2016-04-20 河北凯翔电气科技股份有限公司 Ferroresonance formula three -phase AC voltage regulator device
CN205195275U (en) * 2015-11-26 2016-04-27 北海市深蓝科技发展有限责任公司 Do not have and shove, have distribution lines three -phase pressuretrol that electric arc was shifted gears
CN205681318U (en) * 2016-06-01 2016-11-09 国家电网公司 A kind of many gears output Intelligent transformer device of controlled switching

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2660964A1 (en) * 2012-05-04 2013-11-06 AEG Power Solutions B.V. Electricity supply assembly with a first and a second power supply device, where the second power supply device is connected to the first power supply device
CN103078516A (en) * 2013-01-24 2013-05-01 南京博佳机电有限公司 Automatic input voltage switching device for mah-jong machine
CN205195275U (en) * 2015-11-26 2016-04-27 北海市深蓝科技发展有限责任公司 Do not have and shove, have distribution lines three -phase pressuretrol that electric arc was shifted gears
CN205178888U (en) * 2015-12-01 2016-04-20 河北凯翔电气科技股份有限公司 Ferroresonance formula three -phase AC voltage regulator device
CN205681318U (en) * 2016-06-01 2016-11-09 国家电网公司 A kind of many gears output Intelligent transformer device of controlled switching

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