CN203825099U - Universal phase verification device - Google Patents
Universal phase verification device Download PDFInfo
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- CN203825099U CN203825099U CN201420219643.0U CN201420219643U CN203825099U CN 203825099 U CN203825099 U CN 203825099U CN 201420219643 U CN201420219643 U CN 201420219643U CN 203825099 U CN203825099 U CN 203825099U
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- circuit
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- voltage
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- 238000012795 verification Methods 0.000 title abstract description 9
- 230000009466 transformation Effects 0.000 claims description 12
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a phase difference type universal phase verification device and a phase verification method adopted by the device. The device comprises a first wiring terminal, a common terminal, a second wiring terminal, an overvoltage protection circuit, a switch selection circuit, a waveform conversion circuit, a microprocessor circuit, a first wiring terminal electrification indicating lamp, a second wiring terminal electrification indicating lamp, an in-phase indicating lamp, an out-phase indicating lamp, a power supply indicating lamp, a switching circuit, a charging circuit and a battery circuit. The generated beneficial effects are that the universal phase verification device verifies the phase relation by using the phase difference, is not limited by voltage, and has the universality. In addition, the device is simple to operate, high in safety and universality, and capable of effectively avoiding potential safety hazards brought about by high-voltage phase verification, thereby protecting the safety of workers and equipment, and improving the safety of phase verification; and a phase verification circuit does not judge mistakenly through using the device, and the universal phase verification device has an electricity testing function.
Description
technical field:
The utility model belongs to the technical field of power equipment, relates to the nuclear phase technology of the phase order relation of voltage between switch cubicle and high-voltage charged body, and in particular, the utility model relates to the omnipotent phase checking device of a kind of phase-difference type.
background technology:
At present domestic for high-tension switch cabinet nuclear phase, test is confined to traditional electrical pressure reduction substantially, it has been generally acknowledged that the voltage difference between A-A approaches zero, i.e. identical voltage, and now the luminotron of phase checking device does not work, A-B, line voltage voltage difference between A-C is larger, the luminotron of phase checking device is shinny, this kind of test mode is for checking out more exactly phase place in two essentially identical situations of line voltage distribution, minimum with phase time voltage difference, it is generally acknowledged and approach null value, during out-phase, voltage difference is larger, but in the different situation of two line voltage distributions, even also larger with phase time voltage difference, adopt voltage difference formula nuclear phase cannot judge homophase or out-phase, especially in actual applications, it is consistent that the magnitude of voltage that capacitance type sensor electric capacity difference is coupled out can not reach completely, so traditional voltage difference is to high-tension line nuclear phase can there is serious problem in test.
utility model content:
For above-mentioned prior art, technical problem to be solved in the utility model is to provide a kind of phase order relation that utilizes the omnipotent phase checking device of phase-difference type and then check voltage between different switch cubicles and high-voltage charged body, even voltage difference is larger between homophase, phase differential should be identical, guarantee that A phase is corresponding with A, B phase is corresponding with B, C phase and C corresponding, forbid different corresponding, therefore can address the above problem, ensure the safety that the rear electric system of maintenance puts into operation.
To achieve these goals, the technical scheme that the utility model is taked is: a kind of omnipotent phase checking device and method thereof, for checking the phase relation of different switch cubicles and line voltage distribution, it is characterized in that, it comprises: the first connection terminal, public terminal, the second connection terminal, overvoltage crowbar, switch are selected circuit, waveform transformation circuit, microcontroller circuit, the charged pilot lamp of the first connection terminal, the charged pilot lamp of the second connection terminal, homophase pilot lamp, out-phase pilot lamp, power light, on-off circuit, charging circuit and battery circuit, the input end of the first described connection terminal is connected with one of a high-tension apparatus, for gathering voltage and the voltage phase signal of this phase high-tension apparatus, the input end of the second described connection terminal is connected with another high-tension apparatus, for gathering voltage and the voltage phase signal of this high-tension apparatus, the input end of described public terminal is connected with the common port of high-tension apparatus, the first connection terminal, the output terminal of the second connection terminal and public terminal is connected with the input end of overvoltage crowbar respectively, the output terminal of overvoltage crowbar selects the input end of circuit to be connected with switch, switch selects the output terminal of circuit to be connected with the input end of waveform transformation circuit, the output terminal of waveform transformation circuit is connected with the A/D of microcontroller circuit end, the charged pilot lamp of the first connection terminal, the charged pilot lamp of the second connection terminal, homophase pilot lamp, out-phase pilot lamp, power light is connected with the I/O mouth of microcontroller circuit respectively with on-off circuit, the output terminal of charging circuit is connected with the input end of battery circuit, the output terminal of battery circuit is connected with the power end of microcontroller circuit.
Further, in described battery circuit, battery is rechargeable lithium battary.
Further, in described overvoltage crowbar, adopt bi-directional voltage stabilizing diode.
Further, described switch selection circuit is electronic switch.
Further, described waveform transformation circuit adopts comparer and NAND gate circuit.
Further, described on-off circuit adopts touch key.
Further, described charging circuit adopts USB charging module.
Further, the described charged pilot lamp of the first connection terminal, the charged pilot lamp of the second connection terminal, homophase pilot lamp, out-phase pilot lamp and power light are light emitting diode.
The beneficial effect that the utility model produces is: by utilizing phase differential to check phase relation, not just limited by voltage and there is versatility, and this device is simple to operate, safe, highly versatile, the potential safety hazard that can effectively avoid high-voltage nuclear phase to bring, thereby protected the safety of staff and equipment, improved the security of nuclear phase work; By using this device nuclear phase circuit can not produce erroneous judgement, there is electroscope function simultaneously.
accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of overvoltage crowbar of the present utility model;
Fig. 3 is the structural representation of switch protecting circuit of the present utility model;
Fig. 4 is the structural representation of waveform transformation circuit of the present utility model.
embodiment:
Below in conjunction with drawings and Examples, further set forth the utility model.In the following detailed description, only by the mode of explanation, some one exemplary embodiment of the present utility model has been described.Undoubtedly, those of ordinary skill in the art can recognize, in the situation that not departing from spirit and scope of the present utility model, can to described embodiment, revise by various mode.Therefore, accompanying drawing is illustrative with being described in essence, rather than for limiting the protection domain of claim.
In order to solve the problem existing at the described current known technology of this instructions background technology part and to overcome its defect, the phase order relation of voltage between different switch cubicles and high-voltage charged body and the utility model object of electrical verification are checked in realization, and the technical scheme that the utility model is taked is:
Refer to Fig. 1; an omnipotent phase checking device, this device comprises the first connection terminal 1, public terminal 2, the second connection terminal 3, overvoltage crowbar 4, switch selection circuit 5, waveform transformation circuit 6, microcontroller circuit 7, the charged pilot lamp 8 of the first connection terminal, the charged pilot lamp 9 of the second connection terminal, homophase pilot lamp 10, out-phase pilot lamp 11, power light 12, on-off circuit 13, charging circuit 14 and battery circuit 15.
Please refer to Fig. 2, in overvoltage crowbar, there is the circuit setting that two covers are identical, can see the first bi-directional voltage stabilizing diode 4.1 and the first electric capacity 4.2 parallel connections, the second bi-directional voltage stabilizing diode 4.3 and the second Capacitance parallel connection, at the two ends of the first parallel-connection structure, be connected with respectively the first connection terminal 1 and public terminal 2, at the two ends of the second parallel-connection structure, be connected with respectively the second connection terminal 3 and public terminal 2, the input end of the first connection terminal 1 is connected with a high-tension apparatus, for gathering voltage and the voltage phase signal of this high-tension apparatus, the second connection terminal 3 with by being connected with another high-tension apparatus, gather voltage and the voltage phase signal of this high-tension apparatus, public terminal 2 is by connecting the common port (being generally ground connection) of two tested high-tension apparatuses, the first connection terminal 1, the second connection terminal 3 and public terminal 2 are by the magnitude of voltage receiving and phase signal difference protection circuit against input over-voltage, to prevent that phase checking device from causing short circuit accident because of overvoltage or superpressure.
The voltage phase signal that connection terminal receives is output as J1 and two signals of J2 after overvoltage crowbar 4 voltage stabilizings are processed, and signal is input in switch selection circuit.
Please refer to Fig. 3, switch selects the input end of circuit 5 to input respectively J1 and two voltage phase signals of J2, signal is outputed to respectively to the first electronic switch 5.1 and the second electronic switch 5.2 places after the first resistor voltage divider circuit 5.2 and the second resistor voltage divider circuit 5.4 step-downs, electronic switch is used for controlling the startup of this device, concrete CD4051 or the CD4052 model chip of adopting, switch is selected the output terminal and J1 and J2 corresponding output J3 and two signals of J4 of circuit.
Please refer to Fig. 4, switch selects circuit 5 to be connected with the input end of waveform transformation circuit 6, J3 and J4 signal are input to respectively in the first comparator circuit 6.2 and the second comparator circuit 6.3 in waveform changing circuit 6, in comparator circuit, use LM358 model chip, change three phase sine voltage waveform signal into square-wave signal, the square-wave signal of two-way output is input to AND circuit 6.1, AND circuit 6.1 by two-way square-wave signal phase with after obtain phase signal J5.
Described AND circuit 6.1 is used 74HC08 model chip.
The output terminal of waveform transformation circuit 6 is connected with the A/D end of microcontroller circuit 7, and phase signal J5 is input to microprocessor and carries out identification decision.
The charged pilot lamp 8 of the first connection terminal, the charged pilot lamp 9 of the second connection terminal, homophase pilot lamp 10, out-phase pilot lamp 11, power light 12 are connected with the I/O mouth of microcontroller circuit 7 respectively with on-off circuit 13, if the first connection terminal 1 access charged nuclear phase hole, the charged pilot lamp 8 of the first connection terminal is bright; If the second connection terminal 3 access charged nuclear phase holes, the charged pilot lamp 9 of the second connection terminal is bright, so this device has electroscope function; If the first connection terminal 1 and the second connection terminal 3 two-way voltage signal phase signal J5 are less than 10 ° after microprocessor judges, homophase pilot lamp 10 is bright; If the first connection terminal 1 and the second connection terminal 3 two-way voltage signal phase differential are greater than 30 °, out-phase pilot lamp 11 is bright; When on-off circuit 13, open, power light 12 is bright, and when on-off circuit 13 closures, power light 12 goes out.
In on-off circuit 13, use touch key as switch main body.
Microprocessor adopts PIC series or AVR series or 430 series or 51 series monolithics.
The output terminal of charging circuit 14 is connected with the input end of battery circuit 15, the middle employing USB charging module of charging circuit 14, and charging is flexibly.
The output terminal of battery circuit 15 is connected with the power end of microcontroller circuit 7.In battery circuit 15, by employing 3.6V chargeable lithium cell, whole device is powered.
By reference to the accompanying drawings the utility model is exemplarily described above; obviously the utility model specific implementation is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or without improving, design of the present utility model and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (8)
1. an omnipotent phase checking device, for checking the phase relation of different switch cubicles and line voltage distribution, it is characterized in that, it comprises: the first connection terminal (1), public terminal (2), the second connection terminal (3), overvoltage crowbar (4), switch is selected circuit (5), waveform transformation circuit (6), microcontroller circuit (7), the charged pilot lamp of the first connection terminal (8), the charged pilot lamp of the second connection terminal (9), homophase pilot lamp (10), out-phase pilot lamp (11), power light (12), on-off circuit (13), charging circuit (14) and battery circuit (15), the input end of described the first connection terminal (1) is connected with a high-tension apparatus, for gathering voltage and the voltage phase signal of this high-tension apparatus, the input end of described the second connection terminal (3) is connected with another high-tension apparatus, for gathering voltage and the voltage phase signal of this high-tension apparatus, the input end of described public terminal (2) is connected with the common port of high-tension apparatus, the first connection terminal (1), the output terminal of the second connection terminal (3) and public terminal (2) is connected with the input end of overvoltage crowbar (4) respectively, the output terminal of overvoltage crowbar (4) selects the input end of circuit (5) to be connected with switch, switch selects the output terminal of circuit (5) to be connected with the input end of waveform transformation circuit (6), the output terminal of waveform transformation circuit (6) is connected with the A/D end of microcontroller circuit (7), the charged pilot lamp of the first connection terminal (8), the charged pilot lamp of the second connection terminal (9), homophase pilot lamp (10), out-phase pilot lamp (11), power light (12) is connected with the I/O mouth of microcontroller circuit (7) respectively with on-off circuit (13), the output terminal of charging circuit (14) is connected with the input end of battery circuit (15), the output terminal of battery circuit (15) is connected with the power end of microcontroller circuit (7).
2. a kind of omnipotent phase checking device according to claim 1, is characterized in that: in described battery circuit (15), battery is chargeable lithium cell.
3. a kind of omnipotent phase checking device according to claim 1, is characterized in that: in described overvoltage crowbar (4), adopt bi-directional voltage stabilizing diode.
4. a kind of phase checking device according to claim 1, is characterized in that: described switch selects circuit (5) for electronic switch.
5. a kind of omnipotent phase checking device according to claim 1, is characterized in that: described waveform transformation circuit (6) adopts comparer and AND circuit.
6. a kind of omnipotent phase checking device according to claim 1, is characterized in that: described on-off circuit (13) adopts touch key.
7. a kind of omnipotent phase checking device according to claim 1, is characterized in that: described charging circuit (14) adopts USB charging.
8. a kind of omnipotent phase checking device according to claim 1, is characterized in that: the described charged pilot lamp of the first connection terminal (8), the charged pilot lamp of the second connection terminal (9), homophase pilot lamp (10), out-phase pilot lamp (11) and power light (12) are light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420219643.0U CN203825099U (en) | 2014-04-30 | 2014-04-30 | Universal phase verification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420219643.0U CN203825099U (en) | 2014-04-30 | 2014-04-30 | Universal phase verification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203825099U true CN203825099U (en) | 2014-09-10 |
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ID=51480581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420219643.0U Expired - Fee Related CN203825099U (en) | 2014-04-30 | 2014-04-30 | Universal phase verification device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203825099U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926478A (en) * | 2014-04-30 | 2014-07-16 | 国网河南省电力公司商丘供电公司 | Universal phase checking device and phase checking method |
| CN109001533A (en) * | 2018-07-11 | 2018-12-14 | 国网湖南省电力有限公司 | Switchgear is to phase method |
| CN110333399A (en) * | 2019-08-21 | 2019-10-15 | 广东电网有限责任公司 | A kind of distribution low-voltage customer load looks into phase method |
| CN110824263A (en) * | 2019-12-11 | 2020-02-21 | 国网河南省电力公司汝阳县供电公司 | Phase difference type multifunctional phase checking device |
-
2014
- 2014-04-30 CN CN201420219643.0U patent/CN203825099U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926478A (en) * | 2014-04-30 | 2014-07-16 | 国网河南省电力公司商丘供电公司 | Universal phase checking device and phase checking method |
| CN109001533A (en) * | 2018-07-11 | 2018-12-14 | 国网湖南省电力有限公司 | Switchgear is to phase method |
| CN110333399A (en) * | 2019-08-21 | 2019-10-15 | 广东电网有限责任公司 | A kind of distribution low-voltage customer load looks into phase method |
| CN110333399B (en) * | 2019-08-21 | 2021-05-11 | 广东电网有限责任公司 | Distribution network low-voltage user load phase checking method |
| CN110824263A (en) * | 2019-12-11 | 2020-02-21 | 国网河南省电力公司汝阳县供电公司 | Phase difference type multifunctional phase checking device |
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Legal Events
| 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: 20140910 |