CN100585998C - Digital AC constant current source of 200-10000 ampere - Google Patents
Digital AC constant current source of 200-10000 ampere Download PDFInfo
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- CN100585998C CN100585998C CN200610015208A CN200610015208A CN100585998C CN 100585998 C CN100585998 C CN 100585998C CN 200610015208 A CN200610015208 A CN 200610015208A CN 200610015208 A CN200610015208 A CN 200610015208A CN 100585998 C CN100585998 C CN 100585998C
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Abstract
This invention relates to a digital AC constant source with a wide current sphere including a thyristor automatic constant voltage-regulating device, an autotransformer with the multiplying relation of the coil turns of the output ends, a current-rising transformer with the multiplying relation of the coil turns at the inputs of a primary coil and a switch circuit of a contactor switching and altering the related coil turns of the input of the transformer and the autotransformer output to different times matching relation, in which, the two output ends of the automatic constant current regulating device are connected with two input ends of the autotransformer, the output ends of which are connected with the input ends of the switch circuit of the contactor, the output ends of which are connected with the inputs of the primary coil of the transformer.
Description
Technical field
The invention belongs to a kind of digital electric source apparatus, particularly relate to a kind of 200-10000 peace digital AC constant-current source.
Background technology
The constant-current source that uses on present known market is the constant-current source that the method for driven by servomotor voltage regulator is made, the defective of its existence is that single voltage regulator response speed is slow, precision is low, less stable, test electric current narrow range, particularly be lower than 1/2 o'clock of rated power at power, the phenomenon that precision is low is more outstanding, some electric products of incompatibility at the trial high accuracy, than the requirement of high response speed and wide-range current test.
Summary of the invention
The present invention provides a kind of have precision height, response speed is fast, waveform distortion is little and range of application is wide 200-10000 peace digital AC constant-current source for solving the technical problem that exists in the known technology.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: it includes controllable silicon automatic constant current regulator, the coil turn that also includes each output becomes the autotransformer (T2) of multiple relation, the rising current transformer (T1) that has the first and second two primary coils that 3 inputs are respectively arranged, and described first primary coil first, second input (the SD1, SD2) coil turn between, second of first primary coil, the 3rd input (SD2, SD3) coil turn between, first of described second primary coil, second input (the SD4, SD5) coil turn between, second of second primary coil, the 3rd input (SD5, SD6) coil turn between be identical and the different current classes of correspondence by first contactor (J1), second contactor (J2), the 3rd contactor (J3), the 4th contactor (J4), the 5th contactor (J5), the contactor commutation circuit that the 6th contactor (J6) and the 7th contactor (J7) are formed; Second output (A2) of described controllable silicon automatic constant current regulator connects the following input of autotransformer (T2), and first output (A1) of controllable silicon automatic constant current regulator connects first normally opened contact of the 3rd contactor (J3) of contactor commutation circuit, the 4th contactor (J4), the 5th contactor (J5), the 6th contactor (J6) and the 7th contactor (J7) and an end that connects; One end of second input (SD2) of another termination rising current transformer (T1) first primary coil of first normally opened contact of the 3rd contactor (J3) and first normally opened contact of first contactor (J1); A second primary coil first input end (SD4) of another termination rising current transformer (T1) of first normally opened contact of first contactor (J1) and an end of second contactor (J2), first normally opened contact, the first input end (SD1) of another termination rising current transformer (T1) first primary coil of the 4th contactor (J4) first normally opened contact; The last input of first normally opened contact and another termination autotransformer (T2) that connect of the 5th contactor (J5), the 6th contactor (J6) and the 7th contactor (J7); One end of second normally opened contact of secondary 190 circles output termination the 5th contactors of described autotransformer (T2) (J5), one end of second normally opened contact of secondary 95 circles output termination the 6th contactors of autotransformer (T2) (J6), one end of second normally opened contact of secondary 47.5 circles of autotransformer (T2) output termination the 7th contactors (J7), the other end of the 5th, the 6th, the 7th contactor (J5, J6, J7) second normally opened contact and connect after connect the first input end (SD1) of rising current transformer (T1) first primary coil; The following input termination the 3rd of described autotransformer (T2), the 4th contactor (J3, J4) end and the 5th of second normally opened contact, the 6th, the 7th contactor (J5, J6, J7) the 3rd normally opened contact one end and connect end, the other end and the 5th of the 4th contactor (J4) second normally opened contact, the 6th, the 7th contactor (J5, J6, J7) other end of the 3rd normally opened contact and connect the back and insert rising current transformer (T1) second primary coil the 3rd input (SD6), another termination rising current transformer (T1) second primary coil, second input (SD5) of the 3rd contactor (J3) second normally opened contact and an end of first contactor (J1), second normally opened contact, another termination rising current transformer (T1) first primary coil the 3rd input (SD3) of second normally opened contact of first contactor (J1) and the other end of described second contactor (J2) first normally opened contact.
Another technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: include controllable silicon automatic constant current regulator,
Also comprise the rising current transformer (T1) that has the first and second two primary coils that 3 inputs are respectively arranged, and described first primary coil first, second input (the SD1, SD2) coil turn between, second of described first primary coil, the 3rd input (SD2, SD3) coil turn between, first of described second primary coil, second input (the SD4, SD5) coil turn between, second of described second primary coil, the 3rd input (SD5, SD6) coil turn between be identical and the different current classes of correspondence by first contactor (J1), second contactor (J2), the 3rd contactor (J3), the contactor commutation circuit that the 4th contactor (J4) is formed; First output (A1) of described controllable silicon automatic constant current regulator meets the 3rd and the 4th contactor (J3, J4) first normally opened contact and the end that connects, second input (SD2) of another termination rising current transformer (T1) first primary coil of the 3rd contactor (J3) first normally opened contact and an end of first contactor (J1), first normally opened contact, the first input end (SD4) of another termination rising current transformer (T1) second primary coil of this first normally opened contact of first contactor (J1) and an end of second contactor (J2) normally opened contact, the first input end (SD1) of another termination rising current transformer (T1) first primary coil of the 4th contactor (J4) first normally opened contact, second output (A2) of controllable silicon automatic constant current regulator meets the 3rd and the 4th contactor (J3 of contactor commutation circuit, J4) second normally opened contact and the end that connects; Second input (SD5) of another termination rising current transformer (T1) second primary coil of the 3rd contactor (J3) second normally opened contact and an end of first contactor (J1), second normally opened contact, the 3rd input (SD3) of another termination rising current transformer (T1) first primary coil of this first contactor (J1), second normally opened contact and the other end of second contactor (J2) normally opened contact, the 3rd input (SD6) of another termination rising current transformer (T1) second primary coil of the 4th contactor (J4) second normally opened contact.
Advantage and good effect that the present invention has are: owing to be to utilize controllable silicon automatic constant current regulator, its maximum characteristics are that response speed is fast, and the precision of steady current height reaches in 1%; Waveform distortion is little, and the contactor commutation circuit makes that again the current range of test usefulness is roomy, can reach 200A～10000A.
Description of drawings
Fig. 1 is circuit theory diagrams of the present invention.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplifies now and following the present invention is used for embodiment on the breaker over-loading short cut testing test stand, and conjunction with figs. is described in detail as follows:
As shown in Figure 1, the output terminals A 1 of controllable silicon automatic constant current regulator, A2 connect the two ends of the parallel circuits that constitutes of normal opened contact circuit of connecting with the input of autotransformer T2 separately by contactor J5, J6, J7, it is 47.5: 95: 190 that the number of turn between the output coil of autotransformer T2 is closed: 380, and its corresponding output is 47.5L, 95L, 190L, 380L; Coil turn between primary coil input SD1-SD2, SD2-SD3, SD4-SD5 and the SD5-SD6 of rising current transformer T1 is identical, the SD1 of rising current transformer T1 end links to each other with the output terminals A 1 of controllable silicon automatic constant current regulator by the normal opened contact of contactor J4, and the SD1 end is also by the circuit of parallel connection and the output terminals A 2 of controllable silicon automatic constant current regulator are joined again respectively with after output 47.5L, 95L, the 190L of autotransformer T2 are connected in series by J7, J6, J5 another normal opened contact separately; The SD2 end links to each other with the output terminals A 1 of controllable silicon automatic constant current regulator by the normal opened contact of contactor J3, and the SD2 end also links to each other with SD4 by a normal opened contact of contactor 1; SD3 holds by the sequential circuit of another normal opened contact of another normal opened contact of contactor 1 and contactor J3 and the output terminals A 2 of controllable silicon automatic constant current regulator and joins; The SD5 end also joins by another normal opened contact of contactor J3 and the output terminals A 2 of controllable silicon automatic constant current regulator; SD6 end then with one by contactor J5, J6, J7 separately the 3rd circuit that normal opened contact composes in parallel join with the output terminals A 2 of controllable silicon automatic constant current regulator again with after the circuit of another normal opened contact parallel connection of contactor J4 is connected in series; SD3 joins by contactor J2 and SD4 in addition; The secondary coil of rising current transformer T1 is an output of the present utility model.
Its course of work is: the controllable silicon automatic constant current regulator voltage of will adjusting is given to subsequent conditioning circuit, and the contactor commutation circuit in the subsequent conditioning circuit realizes that wide electric current current with high accuracy is given, in this contactor commutation circuit, amounts to 6 kinds of switching combining modes:
When 1, J1 and J3 were closed, the given electric current of the secondary coil of rising current transformer T1 was maximum Imax
When 2, J3 and J2 were closed, the given electric current of the secondary coil of rising current transformer T1 was 1/2Imax
When 3, J4 and J2 were closed, the given electric current of the secondary coil of rising current transformer T1 was 1/4Imax
When 4, J5 and J2 were closed, the given electric current of the secondary coil of rising current transformer T1 was 1/8Imax
When 5, J6 and J2 were closed, the given electric current of the secondary coil of rising current transformer T1 was 1/16Imax
When 6, J7 and J2 were closed, the given electric current of the secondary coil of rising current transformer T1 was 1/32Imax
In these 6 kinds of switching combining, when measuring current in 5000A-10000A high-current test process, controllable silicon automatic constant current regulator realizes that by selection mode 1 big electric current current with high accuracy is given, when measuring current in the following testing current process of 5000A, controllable silicon automatic constant current regulator is by selection mode 2,3,4,5,6 realize that current with high accuracy is given, cooperate with controllable silicon automatic constant current regulator by the contactor commutation circuit like this, guaranteed the given requirement of high-precision current in the test specification of the wide electric current of 200A-10000A, it is slow to have solved single in the past voltage regulator response speed, precision is low, less stable, the deficiency of testing current narrow range.
6 kinds of switching combining modes of the present invention can also can be undertaken by control program by computer by manual operation.
When the given electric current of secondary coil of rising current transformer T1 only is maximum Imax, 1/2Imax in the foregoing description or 1/4Imax, the contactor commutation circuit also can be removed each normally opened contact circuit switched of contactor J5, J6 in the foregoing description and J7, thereby with autotransformer T2 excision, the output terminals A 1 of controllable silicon automatic constant current regulator links to each other with each input of rising current transformer T1 by commutation circuit.When the given electric current of secondary coil of rising current transformer T1 is during only for 1/8Imax, 1/16Imax in the foregoing description or 1/32Imax, also each normally opened contact circuit switched of contactor J1 in the foregoing description and J3 can be removed, the primary coil input of rising current transformer T1 links to each other with output 47.5L, the 95L, 190 of autotransformer T2 by commutation circuit respectively.Be in the above-mentioned contactor commutation circuit, the coil turn that can include only the primary coil input of rising current transformer T1 becomes the commutation circuit of multiple relation; Also can be in above-mentioned contactor commutation circuit, the coil turn that includes only the output of autotransformer T2 becomes the commutation circuit of multiple relation.
Claims (2)
1. a 200-10000 pacifies digital AC constant-current source, include controllable silicon automatic constant current regulator, it is characterized in that: the coil turn that also includes each output becomes the autotransformer (T2) of multiple relation, the rising current transformer (T1) that has the first and second two primary coils that 3 inputs are respectively arranged, and described first primary coil first, second input (the SD1, SD2) coil turn between, second of first primary coil, the 3rd input (SD2, SD3) coil turn between, first of described second primary coil, second input (the SD4, SD5) coil turn between, second of second primary coil, the 3rd input (SD5, SD6) coil turn between be identical and the different current classes of correspondence by first contactor (J1), second contactor (J2), the 3rd contactor (J3), the 4th contactor (J4), the 5th contactor (J5), the contactor commutation circuit that the 6th contactor (J6) and the 7th contactor (J7) are formed; Second output (A2) of described controllable silicon automatic constant current regulator connects the following input of autotransformer (T2), and first output (A1) of controllable silicon automatic constant current regulator connects first normally opened contact of the 3rd contactor (J3) of contactor commutation circuit, the 4th contactor (J4), the 5th contactor (J5), the 6th contactor (J6) and the 7th contactor (J7) and an end that connects; One end of second input (SD2) of another termination rising current transformer (T1) first primary coil of first normally opened contact of the 3rd contactor (J3) and first normally opened contact of first contactor (J1); A second primary coil first input end (SD4) of another termination rising current transformer (T1) of first normally opened contact of first contactor (J1) and an end of second contactor (J2), first normally opened contact, the first input end (SD1) of another termination rising current transformer (T1) first primary coil of the 4th contactor (J4) first normally opened contact; The last input of first normally opened contact and another termination autotransformer (T2) that connect of the 5th contactor (J5), the 6th contactor (J6) and the 7th contactor (J7); One end of second normally opened contact of secondary 190 circles output termination the 5th contactors of described autotransformer (T2) (J5), one end of second normally opened contact of secondary 95 circles output termination the 6th contactors of autotransformer (T2) (J6), one end of second normally opened contact of secondary 47.5 circles of autotransformer (T2) output termination the 7th contactors (J7), the other end of the 5th, the 6th, the 7th contactor (J5, J6, J7) second normally opened contact and connect after connect the first input end (SD1) of rising current transformer (T1) first primary coil; The following input termination the 3rd of described autotransformer (T2), the 4th contactor (J3, J4) end and the 5th of second normally opened contact, the 6th, the 7th contactor (J5, J6, J7) the 3rd normally opened contact one end and connect end, the other end and the 5th of the 4th contactor (J4) second normally opened contact, the 6th, the 7th contactor (J5, J6, J7) other end of the 3rd normally opened contact and connect the back and insert rising current transformer (T1) second primary coil the 3rd input (SD6), another termination rising current transformer (T1) second primary coil, second input (SD5) of the 3rd contactor (J3) second normally opened contact and an end of first contactor (J1), second normally opened contact, another termination rising current transformer (T1) first primary coil the 3rd input (SD3) of second normally opened contact of first contactor (J1) and the other end of described second contactor (J2) first normally opened contact.
2. a 200-10000 pacifies digital AC constant-current source, include controllable silicon automatic constant current regulator, it is characterized in that: also comprise the rising current transformer (T1) that has the first and second two primary coils that 3 inputs are respectively arranged, and described first primary coil first, second input (the SD1, SD2) coil turn between, second of described first primary coil, the 3rd input (SD2, SD3) coil turn between, first of described second primary coil, second input (the SD4, SD5) coil turn between, second of described second primary coil, the 3rd input (SD5, SD6) coil turn between be identical and the different current classes of correspondence by first contactor (J1), second contactor (J2), the 3rd contactor (J3), the contactor commutation circuit that the 4th contactor (J4) is formed; First output (A1) of described controllable silicon automatic constant current regulator meets the 3rd and the 4th contactor (J3, J4) first normally opened contact and the end that connects, second input (SD2) of another termination rising current transformer (T1) first primary coil of the 3rd contactor (J3) first normally opened contact and an end of first contactor (J1), first normally opened contact, the first input end (SD4) of another termination rising current transformer (T1) second primary coil of this first normally opened contact of first contactor (J1) and an end of second contactor (J2) normally opened contact, the first input end (SD1) of another termination rising current transformer (T1) first primary coil of the 4th contactor (J4) first normally opened contact, second output (A2) of controllable silicon automatic constant current regulator meets the 3rd and the 4th contactor (J3 of contactor commutation circuit, J4) second normally opened contact and the end that connects; Second input (SD5) of another termination rising current transformer (T1) second primary coil of the 3rd contactor (J3) second normally opened contact and an end of first contactor (J1), second normally opened contact, the 3rd input (SD3) of another termination rising current transformer (T1) first primary coil of this first contactor (J1), second normally opened contact and the other end of second contactor (J2) normally opened contact, the 3rd input (SD6) of another termination rising current transformer (T1) second primary coil of the 4th contactor (J4) second normally opened contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610015208A CN100585998C (en) | 2006-08-08 | 2006-08-08 | Digital AC constant current source of 200-10000 ampere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610015208A CN100585998C (en) | 2006-08-08 | 2006-08-08 | Digital AC constant current source of 200-10000 ampere |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1945949A CN1945949A (en) | 2007-04-11 |
| CN100585998C true CN100585998C (en) | 2010-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610015208A Expired - Fee Related CN100585998C (en) | 2006-08-08 | 2006-08-08 | Digital AC constant current source of 200-10000 ampere |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105827134B (en) * | 2015-12-25 | 2019-05-17 | 温州大学 | Multipath magnetic circuit low-voltage, high-current digital AC constant-current source |
| CN106093493A (en) * | 2016-06-30 | 2016-11-09 | 温州聚创电气科技有限公司 | A kind of program control AC constant-current source system |
| CN106783046B (en) * | 2017-01-20 | 2019-01-08 | 陕西长岭迈腾电子有限公司 | 18 pulse wave rectifier transformer of dual input autocoupling type |
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- 2006-08-08 CN CN200610015208A patent/CN100585998C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1945949A (en) | 2007-04-11 |
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