CN204302409U - High-voltage alternating fuse AS characteristic test device - Google Patents
High-voltage alternating fuse AS characteristic test device Download PDFInfo
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- CN204302409U CN204302409U CN201420718963.0U CN201420718963U CN204302409U CN 204302409 U CN204302409 U CN 204302409U CN 201420718963 U CN201420718963 U CN 201420718963U CN 204302409 U CN204302409 U CN 204302409U
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- 238000005259 measurement Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 1
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- 230000001960 triggered effect Effects 0.000 description 1
Abstract
The application relates to a kind of high-voltage alternating fuse AS characteristic test device, comprise current feedback circuit AC, the series loop of current feedback circuit is connected with electric current relay, fuse fixture summation current transformer, the output contact of described electric current relay is connected in parallel to timer, timer is in parallel with electric current relay, at current transformer, place is parallel with ammeter, and at fuse fixture, place is parallel with voltmeter, and high-voltage alternating fuse is connected in fuse fixture.The application adopts current measurement timing circuit, much smaller than High-voltage Fuse Blow voltage, eliminate overtension under the power-frequency voltage of the impact of fuse, different current values is added to fuse two ends to be tested, pass through current sample, time set timing, can simulate A/S characteristic curve and the related technical data of this model fuse subsequently.
Description
Technical field
The application relates to a kind of high-voltage alternating fuse AS characteristic test device.
Background technology
In current power system; high-tension fuse is widely used in for the overload of power circuit, transformer, voltage transformer and other electrical equipment and short-circuit protection; but the corresponding device instrument for detecting high-tension fuse A/S characteristic, does not domesticly find similar product.Whether whether high-tension fuse A/S characteristic is qualified, identify consistent, whether meet service requirement with nameplate, and this series of problem is all unknown, needs corresponding technological means to detect it.
Summary of the invention
The object of the application is to provide one can test high-voltage alternating fuse AS characteristic, determines its parameter, meets the actual high-voltage alternating fuse AS characteristic test device used.
The object of the application is achieved in that high-voltage alternating fuse AS characteristic test device comprises current feedback circuit AC, the series loop of current feedback circuit is connected with electric current relay, fuse fixture summation current transformer, the output contact of described electric current relay is connected in parallel to timer, timer is in parallel with electric current relay, at current transformer, place is parallel with ammeter, at fuse fixture, place is parallel with voltmeter, and high-voltage alternating fuse is connected in fuse fixture.
Owing to carrying out technique scheme, the application adopts current measurement timing circuit, much smaller than High-voltage Fuse Blow voltage, eliminate overtension under the power-frequency voltage of the impact of fuse, different current values is added to fuse two ends to be tested, by current sample, time set timing, can simulate A/S characteristic curve and the related technical data of this model fuse subsequently.
Accompanying drawing explanation
The technical scheme of the application is provided by following drawings and Examples:
Fig. 1 is high-voltage alternating fuse AS characteristic test device circuit diagram;
Fig. 2 is fuse clips lamps structure schematic diagram.
Legend: 1, clamp seat; 2, insulating base; 3, high-voltage alternating fuse; 4, dynamic holder; 5, slide block, 6, slide rail, 7, base, 8, supporting leg.
Detailed description of the invention
The application by the restriction of following embodiment, can not determine concrete embodiment according to the technical scheme of the application and actual conditions.
Embodiment: as shown in Figure 1, high-voltage alternating fuse AS characteristic test device it comprise current feedback circuit AC, the series loop of current feedback circuit is connected with electric current relay, fuse fixture summation current transformer, the output contact of described electric current relay is connected in parallel to timer, and timer is in parallel with electric current relay.At current transformer, place is parallel with ammeter, and at fuse fixture, place is parallel with voltmeter, and high-voltage alternating fuse 3 is connected in fuse fixture.
Described fuse fixture comprises base 7, and base 7 is provided with fixed and moving holder 1,4, and described dynamic holder 4 is fixed on slide block 5, and slide block 5 slides in slide rail 6, and slide rail 6 is laid along base 7 surface.Insulating base 2 is arranged with at fixed and moving holder 1,4.Described fixed and moving holder 1,4 is anchor ears, is reserved with wiring point thereon, and high-voltage alternating fuse 3 two ends are clamped in fixed and moving holder 1,4 respectively.Base 7 bottom surface is provided with supporting leg 8, and described supporting leg 8 is insulating element.
Described ammeter is digital electronic ammeter, and described voltmeter is digital voltmeter, and described digital electronic ammeter and digital voltmeter are all connected with data acquisition end, and described data acquisition end is computer.
The mode that this device adopts electric current relay output contact to close startup timer starts timing, simultaneously for expanding this measurement device range, adopts current transformer to coordinate the mode of metering current to measure main circuit current with digital ammeter.During use, current feedback circuit exports low-voltage, high-current, timing is started by electric current device relay and electric current device relay output contact triggered timer, digital voltmeter, digital ammeter record electric current by high-voltage alternating fuse 3 and both end voltage respectively, provide the A/S characteristic measuring this test high-voltage alternating fuse 3 to provide test data.During off-test, test data and this high-voltage alternating fuse 3 factory data are contrasted, judges that whether it is qualified.
Above technical characteristic constitutes the most preferred embodiment of the application, and it has stronger adaptability and best implementation result, can increase and decrease inessential technical characteristic according to actual needs, meet the needs of different situations.
Claims (7)
1. a high-voltage alternating fuse AS characteristic test device, it is characterized in that: it comprises current feedback circuit AC, the series loop of current feedback circuit is connected with electric current relay, fuse fixture summation current transformer, the output contact of described electric current relay is connected in parallel to timer, timer is in parallel with electric current relay, at current transformer, place is parallel with ammeter, and at fuse fixture, place is parallel with voltmeter, and high-voltage alternating fuse is connected in fuse fixture.
2. high-voltage alternating fuse AS characteristic test device as claimed in claim 1, it is characterized in that: described fuse fixture comprises base, and base is provided with fixed and moving holder, described dynamic holder is fixed on slide block, slide block slides in slide rail, and slide rail is laid along susceptor surface.
3. high-voltage alternating fuse AS characteristic test device as claimed in claim 2, is characterized in that: be arranged with insulating base at fixed and moving holder.
4. high-voltage alternating fuse AS characteristic test device as claimed in claim 2, it is characterized in that: described fixed and moving holder is anchor ear, is reserved with wiring point thereon, high-voltage alternating fuse two ends are clamped in fixed and moving holder respectively.
5. high-voltage alternating fuse AS characteristic test device as claimed in claim 2, it is characterized in that: base end face is provided with supporting leg, described supporting leg is insulating element.
6. high-voltage alternating fuse AS characteristic test device as claimed in claim 1, it is characterized in that: described ammeter is digital electronic ammeter, described voltmeter is digital voltmeter, and described digital electronic ammeter and digital voltmeter are all connected with data acquisition end.
7. high-voltage alternating fuse AS characteristic test device as claimed in claim 6, is characterized in that: described data acquisition end is computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420718963.0U CN204302409U (en) | 2014-11-27 | 2014-11-27 | High-voltage alternating fuse AS characteristic test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420718963.0U CN204302409U (en) | 2014-11-27 | 2014-11-27 | High-voltage alternating fuse AS characteristic test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204302409U true CN204302409U (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420718963.0U Active CN204302409U (en) | 2014-11-27 | 2014-11-27 | High-voltage alternating fuse AS characteristic test device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204302409U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104375044A (en) * | 2014-11-27 | 2015-02-25 | 国家电网公司 | A/S characteristic test device for high-voltage alternating current fuse |
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2014
- 2014-11-27 CN CN201420718963.0U patent/CN204302409U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104375044A (en) * | 2014-11-27 | 2015-02-25 | 国家电网公司 | A/S characteristic test device for high-voltage alternating current fuse |
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