CN204228835U - A kind of phase order of 3-phase AC detecting device - Google Patents
A kind of phase order of 3-phase AC detecting device Download PDFInfo
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- CN204228835U CN204228835U CN201420723638.3U CN201420723638U CN204228835U CN 204228835 U CN204228835 U CN 204228835U CN 201420723638 U CN201420723638 U CN 201420723638U CN 204228835 U CN204228835 U CN 204228835U
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Abstract
The utility model discloses a kind of phase order of 3-phase AC detecting device, comprise the resistance R1 be connected in series respectively with three-phase electricity incoming end, R2, R2, resistance R1, R2, R2 respectively with voltage stabilizing diode VS1, VS2, the negative pole of VS3 connects, resistance R1, R2 and voltage stabilizing diode VS1, the link of VS2 also respectively with integrated circuit (IC) 1, IC2 connects, integrated circuit (IC) 1, IC2 is connected with triode VT1 base stage and electric capacity C2 positive pole by resistance R6, triode VT1 base-emitter is connected with triode VT2 base stage, triode VT2 emitter-base bandgap grading is connected with electric capacity C2 negative pole and ground connection, triode VT1 collector is connected with diode VD2 positive pole, triode VT2 collector is connected with relay K one end.The utility model structure is simple, cost is lower, easy to detect, dirigibility is good, practical, efficiently solves the deficiencies in the prior art.
Description
Technical field
The utility model relates to technical field of electric power, especially relates to a kind of phase order of 3-phase AC detecting device.
Background technology
In production practices and scientific experiment, the phase sequence that electrician detects three-phase electricity is very necessary, and particularly in some important events, the phase sequence of three-phase electricity is confused often causes heavy losses.The method that at present some workmens commonly use accesses motor on three-phase supply, sees to turn to judge whether correctly phase sequence right, and this method is not only loaded down with trivial details and can not implement when condition does not possess.And when adopting instrument to detect three-phase phase sequence, conventional is oscillograph or phasometer.But there is feature that is expensive and not Portable belt in these two kinds of instruments.Particularly under the occasion of the overwhelming majority, measuring the phase sequence of alternating current is only know phase place advanced or delayed, does not need accurately to measure numerical value, now uses oscillograph or phasometer just to seem unnecessary.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of phase order of 3-phase AC detecting device is provided, the phase sequence of detection three-phase alternating-current supply of the present utility model, and automatically load is connected under the prerequisite that phase sequence is correct, if incorrect, load does not work, and compares traditional Phase sequence detection equipment more flexible.It is reasonable in design, structure is simple, cost is lower, easy to detect, dirigibility good, practical, efficiently solve the deficiencies in the prior art.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of phase order of 3-phase AC detecting device, it is characterized in that: comprise three three-phase electricity incoming end A, B, C, described three three-phase electricity incoming ends are connected in series resistance R1 respectively, R2, R2, described resistance R1, R2, R2 respectively with voltage stabilizing diode VS1, VS2, the negative pole of VS3 connects, described voltage stabilizing diode VS1, VS2, the equal ground connection of VS3 positive pole, described resistance R1, R2 and voltage stabilizing diode VS1, the link of VS2 also respectively with integrated circuit (IC) 1, IC2 connects, described resistance R3 is connected with electric capacity C1 one end with the link of voltage stabilizing diode VS3, the described electric capacity C1 other end is connected with resistance R4 one end and diode VD1 positive pole, described resistance R4 other end ground connection, described diode VD1 negative pole and integrated circuit (IC) 1, IC2 is connected with resistance R5 one end, described resistance R5 other end ground connection, described integrated circuit (IC) 1, IC2 output terminal are connected with triode VT1 base stage and electric capacity C2 positive pole by resistance R6, described triode VT1 base-emitter is connected with triode VT2 base stage, described triode VT2 emitter-base bandgap grading is connected with electric capacity C2 negative pole and ground connection, described triode VT1 collector is connected with diode VD2 positive pole, described triode VT2 collector is connected with relay K one end, and described diode VD2 negative pole and the relay K other end all connect direct supply.
Further, described integrated circuit (IC) 1, IC2 select CD4013 type double D trigger integrated circuit.
Further, described resistance R1, R2 are connected with the CLK input end of integrated circuit (IC) 1, IC2 respectively with the link of voltage stabilizing diode VS1, VS2.
Further, described diode VD1 negative pole is connected with the R input end of integrated circuit (IC) 1, IC2.
Further, described triode VT1, VT2 select S9013 type silicon NPN transistor.
Further, described relay K selects JRX-13F type 12V DC relay.
The utility model compared with prior art has the following advantages:
The phase sequence of detection three-phase alternating-current supply of the present utility model, and automatically load is connected under the prerequisite that phase sequence is correct, if incorrect, load does not work, and compares traditional Phase sequence detection equipment more flexible.It is reasonable in design, structure is simple, cost is lower, easy to detect, dirigibility good, practical, efficiently solve the deficiencies in the prior art.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is phase order of 3-phase AC detector circuit schematic diagram of the present utility model.
Embodiment
As shown in Figure 1, a kind of phase order of 3-phase AC detecting device, it is characterized in that: comprise three three-phase electricity incoming end A, B, C, described three three-phase electricity incoming ends are connected in series resistance R1 respectively, R2, R2, described resistance R1, R2, R2 respectively with voltage stabilizing diode VS1, VS2, the negative pole of VS3 connects, described voltage stabilizing diode VS1, VS2, the equal ground connection of VS3 positive pole, described resistance R1, R2 and voltage stabilizing diode VS1, the link of VS2 also respectively with integrated circuit (IC) 1, IC2 connects, described resistance R3 is connected with electric capacity C1 one end with the link of voltage stabilizing diode VS3, the described electric capacity C1 other end is connected with resistance R4 one end and diode VD1 positive pole, described resistance R4 other end ground connection, described diode VD1 negative pole and integrated circuit (IC) 1, IC2 is connected with resistance R5 one end, described resistance R5 other end ground connection, described integrated circuit (IC) 1, IC2 output terminal are connected with triode VT1 base stage and electric capacity C2 positive pole by resistance R6, described triode VT1 base-emitter is connected with triode VT2 base stage, described triode VT2 emitter-base bandgap grading is connected with electric capacity C2 negative pole and ground connection, described triode VT1 collector is connected with diode VD2 positive pole, described triode VT2 collector is connected with relay K one end, and described diode VD2 negative pole and the relay K other end all connect direct supply.
In the present embodiment, described integrated circuit (IC) 1, IC2 select CD4013 type double D trigger integrated circuit.
In the present embodiment, described resistance R1, R2 are connected with the CLK input end of integrated circuit (IC) 1, IC2 respectively with the link of voltage stabilizing diode VS1, VS2.
In the present embodiment, described diode VD1 negative pole is connected with the R input end of integrated circuit (IC) 1, IC2.
In the present embodiment, described triode VT1, VT2 select S9013 type silicon NPN transistor.
In the present embodiment, described relay K selects JRX-13F type 12V DC relay.
As shown in Figure 1, three-phase alternating current accesses A, B, C tri-end respectively after step-down, rectification, and A, B two ends are respectively through 2 the clock pulse signal ends delivering to IC integrated circuit after resistor R1, R2 and voltage stabilizing diode VS1, VS2 amplitude limit, shaping.
If phase sequence correct (i.e. A, B, C tri-phase sequence occur positive pulse), then 1 pin of IC integrated circuit and 13 pin all export high level, and make VT1, VT2 conducting, relay K coil obtains electric, and the moving together contact of K is closed, and consumer is started working.Now, C end is by the reset terminal output reset signal of resistor R3 and stabilivolt VS3 to IC integrated circuit, 1 pin and 13 pin output low levels, owing to capacitor C2 starting electric discharge, making triode VT1, VT2 continue conducting maintenance relay continues electric, load normally works, and completes the change of three-phase alternating current one-period.
If phase sequence mistake, then make 13 pin keep low level, triode VT1, VT2 end, the coil losing electricity of relay K, and the moving together contact of K disconnects, and consumer quits work.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solutions of the utility model.
Claims (6)
1. a phase order of 3-phase AC detecting device, it is characterized in that: comprise three three-phase electricity incoming end A, B, C, described three three-phase electricity incoming ends are connected in series resistance R1 respectively, R2, R2, described resistance R1, R2, R2 respectively with voltage stabilizing diode VS1, VS2, the negative pole of VS3 connects, described voltage stabilizing diode VS1, VS2, the equal ground connection of VS3 positive pole, described resistance R1, R2 and voltage stabilizing diode VS1, the link of VS2 also respectively with integrated circuit (IC) 1, IC2 connects, described resistance R3 is connected with electric capacity C1 one end with the link of voltage stabilizing diode VS3, the described electric capacity C1 other end is connected with resistance R4 one end and diode VD1 positive pole, described resistance R4 other end ground connection, described diode VD1 negative pole and integrated circuit (IC) 1, IC2 is connected with resistance R5 one end, described resistance R5 other end ground connection, described integrated circuit (IC) 1, IC2 output terminal are connected with triode VT1 base stage and electric capacity C2 positive pole by resistance R6, described triode VT1 base-emitter is connected with triode VT2 base stage, described triode VT2 emitter-base bandgap grading is connected with electric capacity C2 negative pole and ground connection, described triode VT1 collector is connected with diode VD2 positive pole, described triode VT2 collector is connected with relay K one end, and described diode VD2 negative pole and the relay K other end all connect direct supply.
2. according to a kind of phase order of 3-phase AC detecting device according to claim 1, it is characterized in that: described integrated circuit (IC) 1, IC2 select CD4013 type double D trigger integrated circuit.
3. according to a kind of phase order of 3-phase AC detecting device according to claim 2, it is characterized in that: described resistance R1, R2 are connected with the CLK input end of integrated circuit (IC) 1, IC2 respectively with the link of voltage stabilizing diode VS1, VS2.
4. according to a kind of phase order of 3-phase AC detecting device according to claim 2, it is characterized in that: described diode VD1 negative pole is connected with the R input end of integrated circuit (IC) 1, IC2.
5. according to a kind of phase order of 3-phase AC detecting device according to claim 1, it is characterized in that: described triode VT1, VT2 select S9013 type silicon NPN transistor.
6. according to a kind of phase order of 3-phase AC detecting device according to claim 1, it is characterized in that: described relay K selects JRX-13F type 12V DC relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420723638.3U CN204228835U (en) | 2014-11-26 | 2014-11-26 | A kind of phase order of 3-phase AC detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420723638.3U CN204228835U (en) | 2014-11-26 | 2014-11-26 | A kind of phase order of 3-phase AC detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204228835U true CN204228835U (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420723638.3U Expired - Fee Related CN204228835U (en) | 2014-11-26 | 2014-11-26 | A kind of phase order of 3-phase AC detecting device |
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| CN (1) | CN204228835U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597132A (en) * | 2016-12-05 | 2017-04-26 | 黄超发 | Pocket-sized phase sequence display |
| CN107579524A (en) * | 2017-10-23 | 2018-01-12 | 成都旭思特科技有限公司 | Suitable for the protection mechanism of active filter |
-
2014
- 2014-11-26 CN CN201420723638.3U patent/CN204228835U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597132A (en) * | 2016-12-05 | 2017-04-26 | 黄超发 | Pocket-sized phase sequence display |
| CN107579524A (en) * | 2017-10-23 | 2018-01-12 | 成都旭思特科技有限公司 | Suitable for the protection mechanism of active filter |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20151126 |