CN206945883U - A kind of blown fuse test device - Google Patents
A kind of blown fuse test device Download PDFInfo
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- CN206945883U CN206945883U CN201720582805.0U CN201720582805U CN206945883U CN 206945883 U CN206945883 U CN 206945883U CN 201720582805 U CN201720582805 U CN 201720582805U CN 206945883 U CN206945883 U CN 206945883U
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Abstract
The utility model discloses a kind of blown fuse test device, including input voltage module, rectification unit, inversion unit, filter unit, isolating transformer, bidirectional triode thyristor and controller, input voltage module inputs three-phase alternating voltage, rectification unit carries out rectification to input AC electricity, inversion unit carries out inversion to the DC voltage after rectification, obtain single-phase variable-frequency power sources, filter unit is filtered to the single-phase variable-frequency power sources voltage after inversion, the input connection of filtered voltage and isolating transformer, bidirectional triode thyristor is arranged on the output circuit of isolating transformer, the bidirectional triode thyristor is connected with controller, controller controls bidirectional triode thyristor to open or close according to the fusing test condition of setting.The utility model is using the fusing of single-phase variable-frequency power sources test fuse, and the opening angle of variable-frequency power sources output voltage and holding time for rated voltage can set, by setting the opening angle of rated voltage and voltage come the accurate striking point for determining fuse.
Description
Technical field
Fusing testing field is the utility model is related to, more particularly to a kind of blown fuse test device.
Background technology
Original single-phase variable-frequency power sources output is controlled with contactor, and opening angle can not be set, and the initial angle of voltage can not
Control, 0-360 degree are opened at random, and rated voltage output time is unlimited, is not suitable for the striking point of test fuse.
Opening angle can arbitrarily be set by being not present in the prior art melts with the fuse for setting rated voltage output time
Disconnected test device, therefore, it is impossible to realize the accurate measurement to the striking point of fuse.
Utility model content
In order to solve problem of the prior art, the utility model provides a kind of blown fuse test device, using list
As test power supply, the opening angle of variable-frequency power sources output voltage and holding time for rated voltage can set phase transformation frequency power
It is fixed, by setting the opening angle of rated voltage and voltage come the accurate striking point for determining fuse.The technical scheme is such as
Under：
The utility model provides a kind of blown fuse test device, including input voltage module, rectification unit, inversion
Unit, filter unit, isolating transformer, bidirectional triode thyristor and controller,
The input voltage module inputs three-phase alternating voltage, and the rectification unit carries out rectification, institute to input AC electricity
State inversion unit and inversion is carried out to the DC voltage after rectification, single-phase variable-frequency power sources is obtained, after the filter unit is to inversion
Single-phase variable-frequency power sources voltage is filtered, and filtered voltage is connected with the input of the isolating transformer, it is described it is two-way can
Control silicon is arranged on the output circuit of the isolating transformer,
The bidirectional triode thyristor is connected with controller, the controller according to the fusing test condition of setting control it is two-way can
Control silicon opens or closes, when the fusing test condition includes test voltage, test frequency, open phase angle angle and operation
Between.
Further, the inversion unit includes 4 IGBT, and the IGBT is connected using full-bridge mode.
Further, the filter unit is LC wave filters.
Further, described device also includes digital analog converter, and the digital analog converter is used for the single-phase voltage of setting
Digital quantity is converted to single-phase voltage analog quantity.
Further, the digital analog converter includes setting voltage digital analog converter and unit sinusoidal undulation number weighted-voltage D/A converter.
Further, described device also includes arm processor, and the fusing test condition is realized by FPGA.
Further, the test voltage in the fusing test condition is generated by DDS device.
Further, the test frequency in the fusing test condition is generated by DDS device.
Further, the FPGA is connected with controller and bidirectional triode thyristor.
Further, the load of the output circuit of the isolating transformer is fuse to be tested.
What technical scheme provided by the utility model was brought has the beneficial effect that：
1) opening angle of test device is that 0-360 degree is arbitrarily set, rated voltage and frequency and the power supply volume of output
Surely the time run can arbitrarily set；
2) this test device realizes digital DDS technologies using FPGA, is accurately obtained output opening angle, exports opening angle
0-360 DEG C of setting range, error ± 1 DEG C；Frequency range 30Hz-1000Hz sine waveform, the stability of frequency can reach
To 0.01%；
3) this test device is by arbitrarily setting voltage and frequency, any opening angle for setting output voltage, Ke Yijing
True measures blown fuse point.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the structural representation for the blown fuse test device that the utility model embodiment provides；
Fig. 2 is the control module schematic diagram for the blown fuse test device that the utility model embodiment provides；
Fig. 3 is the control process schematic diagram for the blown fuse test device that the utility model embodiment provides；
Fig. 4 is the blown fuse test device of the utility model embodiment offer in 0 ° of angle opening schematic diagram；
Fig. 5 is the blown fuse test device of the utility model embodiment offer in 30 ° of angle opening schematic diagrames；
Fig. 6 is the blown fuse test device of the utility model embodiment offer in 45° angle opening schematic diagram；
Fig. 7 is the blown fuse test device of the utility model embodiment offer in 90 ° of angle opening schematic diagrames；
Fig. 8 is the blown fuse test device of the utility model embodiment offer in 180 ° of angle opening schematic diagrames；
Fig. 9 is the blown fuse test device of the utility model embodiment offer in 270 ° of angle opening schematic diagrames.
Embodiment
In order that those skilled in the art more fully understand the utility model, it is real below in conjunction with the utility model
The accompanying drawing in example is applied, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that be described
Embodiment is only the embodiment of the utility model part, rather than whole embodiments.Based on the reality in the utility model
Example is applied, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all should
When the scope for belonging to the utility model protection.
It should be noted that term " first " in specification and claims of the present utility model and above-mentioned accompanying drawing,
" second " etc. is for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so
The data used can exchange in the appropriate case, so that embodiment of the present utility model described herein can be with except at this
In diagram or description those beyond order implement.In addition, term " comprising " and " having " and their any deformation, meaning
Figure be to cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, apparatus, product or equipment
Be not necessarily limited to those steps or the unit clearly listed, but may include not list clearly or for these processes,
The intrinsic other steps of method, product or equipment or unit.
Embodiment
In one embodiment of the present utility model, there is provided a kind of blown fuse test device, it is described referring to Fig. 1
Blown fuse test device include input voltage module, rectification unit 1, inversion unit 2, filter unit 3, isolating transformer 4,
Bidirectional triode thyristor 5 and controller,
The input voltage module inputs three-phase alternating voltage, and the rectification unit 1 carries out rectification, institute to input AC electricity
State inversion unit 2 and inversion is carried out to the DC voltage after rectification, single-phase variable-frequency power sources is obtained, after the filter unit 3 is to inversion
Single-phase variable-frequency power sources voltage be filtered, filtered voltage is connected with the input of the isolating transformer 4, described two-way
Controllable silicon 5 is arranged on the output circuit of the isolating transformer 4, and the load of the output circuit of the isolating transformer 4 is to treat
The fuse of test；
The bidirectional triode thyristor 5 is connected with controller, and the controller controls two-way according to the fusing test condition of setting
Controllable silicon 5 opens or closes, and the fusing test condition includes test voltage, test frequency, open phase angle angle and operation
Time.
Wherein, the inversion unit 2 includes 4 IGBT, and the IGBT is connected using full-bridge mode, the filter unit 3
For LC wave filters.
In order to realize the display of digital-to-analogue conversion and analog quantity, described device also includes digital analog converter, the digital-to-analogue conversion
Device is used to the single-phase voltage digital quantity of setting being converted to single-phase voltage analog quantity, and specifically, the digital analog converter includes setting
Determine voltage digital analog converter and unit sinusoidal undulation number weighted-voltage D/A converter.
Control system is provided with the blown fuse test device, referring to Fig. 2, in the utility model embodiment,
The control system includes arm processor, and the fusing test condition is mainly realized by FPGA, referring to Fig. 1, the FPGA and control
Device and bidirectional triode thyristor 5 processed connect.
In the utility model embodiment, test voltage and test frequency in the fusing test condition fill by DDS
Put generation.
Referring to Fig. 3, main control algolithm is realized in FPGA, and FPGA major function is as shown in figure 3, FPGA is received
To ARM setting magnitude of voltage, setpoint frequency value, opening angle and run time.Voltage setting value is converted into data signal output
Output voltage set-point is generated to voltage output DAC；Setpoint frequency enters DDS generation output frequency values, looks into sine table, obtains
Output SIN is output to the sine wave of the DAC generation standards of SIN ripples, with setting voltage set-point synthesising output voltage value；Work as sine
When the value of tabling look-up of ripple is equal to output opening angle, output-scr is opened, and starts timer, when timer is equal to run time,
Close output-scr.
The testing experiment data for the blown fuse test device that the utility model embodiment provides are as follows：
1) this test device realizes digital DDS technologies with FPGA, can be accurately obtained output opening angle, exports opening angle
0-360 DEG C of setting range, Fig. 4 to Fig. 9 show the voltage output under different opening angles, the opening angle error range
±1℃；
2) frequency range 30Hz-1000Hz sine waveform, the stability of frequency can reach 0.01%；
3) this test device is by arbitrarily setting voltage and frequency, any opening angle for setting output voltage, Ke Yijing
True measures blown fuse point.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (10)
1. a kind of blown fuse test device, it is characterised in that including input voltage module, rectification unit, inversion unit, filter
Ripple unit, isolating transformer, bidirectional triode thyristor and controller,
The input voltage module inputs three-phase alternating voltage, and the rectification unit carries out rectification to input AC electricity, described inverse
Become unit and inversion is carried out to the DC voltage after rectification, obtain single-phase variable-frequency power sources, the filter unit is to single-phase after inversion
Variable-frequency power sources voltage is filtered, and filtered voltage is connected with the input of the isolating transformer, the bidirectional triode thyristor
It is arranged on the output circuit of the isolating transformer,
The bidirectional triode thyristor is connected with controller, and the controller controls bidirectional triode thyristor according to the fusing test condition of setting
Open or close, the fusing test condition includes test voltage, test frequency, open phase angle angle and run time.
2. blown fuse test device according to claim 1, it is characterised in that the inversion unit includes 4
IGBT, the IGBT are connected using full-bridge mode.
3. blown fuse test device according to claim 1, it is characterised in that the filter unit filters for LC
Device.
4. blown fuse test device according to claim 1, it is characterised in that described device also includes digital-to-analogue conversion
Device, the digital analog converter are used to the single-phase voltage digital quantity of setting being converted to single-phase voltage analog quantity.
5. blown fuse test device according to claim 4, it is characterised in that the digital analog converter includes setting
Voltage digital analog converter and unit sinusoidal undulation number weighted-voltage D/A converter.
6. blown fuse test device according to claim 1, it is characterised in that described device also includes ARM processing
Device, the fusing test condition are realized by FPGA.
7. blown fuse test device according to claim 6, it is characterised in that the survey in the fusing test condition
Examination voltage is generated by DDS device.
8. blown fuse test device according to claim 6, it is characterised in that the survey in the fusing test condition
Examination frequency is generated by DDS device.
9. blown fuse test device according to claim 6, it is characterised in that the FPGA and controller and two-way
Controllable silicon connects.
10. the blown fuse test device according to any one in claim 1-9, it is characterised in that the isolation
The load of the output circuit of transformer is fuse to be tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720582805.0U CN206945883U (en) | 2017-05-24 | 2017-05-24 | A kind of blown fuse test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720582805.0U CN206945883U (en) | 2017-05-24 | 2017-05-24 | A kind of blown fuse test device |
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| Publication Number | Publication Date |
|---|---|
| CN206945883U true CN206945883U (en) | 2018-01-30 |
Family
ID=61361953
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720582805.0U Active CN206945883U (en) | 2017-05-24 | 2017-05-24 | A kind of blown fuse test device |
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| CN (1) | CN206945883U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110299854A (en) * | 2019-07-22 | 2019-10-01 | 广州坂本电气有限公司 | A kind of elevator control system stabilized supply apparatus |
| CN111614274A (en) * | 2020-04-24 | 2020-09-01 | 中国南方电网有限责任公司超高压输电公司广州局 | Converter valve voltage-sharing electrode power supply device for scaling test |
| CN112363055A (en) * | 2020-10-30 | 2021-02-12 | 艾普斯电源（苏州）有限公司 | Test method of three-phase motor |
| CN113721141A (en) * | 2021-08-18 | 2021-11-30 | 旭程电子(深圳)有限公司 | Voltage withstand detection device for fuse |
-
2017
- 2017-05-24 CN CN201720582805.0U patent/CN206945883U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110299854A (en) * | 2019-07-22 | 2019-10-01 | 广州坂本电气有限公司 | A kind of elevator control system stabilized supply apparatus |
| CN111614274A (en) * | 2020-04-24 | 2020-09-01 | 中国南方电网有限责任公司超高压输电公司广州局 | Converter valve voltage-sharing electrode power supply device for scaling test |
| CN112363055A (en) * | 2020-10-30 | 2021-02-12 | 艾普斯电源（苏州）有限公司 | Test method of three-phase motor |
| CN112363055B (en) * | 2020-10-30 | 2024-05-17 | 艾普斯电源（苏州）有限公司 | Test method of three-phase motor |
| CN113721141A (en) * | 2021-08-18 | 2021-11-30 | 旭程电子(深圳)有限公司 | Voltage withstand detection device for fuse |
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