CN103926478B - Universal phase checking device and phase checking method - Google Patents
Universal phase checking device and phase checking method Download PDFInfo
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- CN103926478B CN103926478B CN201410181281.5A CN201410181281A CN103926478B CN 103926478 B CN103926478 B CN 103926478B CN 201410181281 A CN201410181281 A CN 201410181281A CN 103926478 B CN103926478 B CN 103926478B
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- 238000012795 verification Methods 0.000 claims abstract description 6
- 238000013519 translation Methods 0.000 claims description 12
- 230000000087 stabilizing effect Effects 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 6
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 238000006127 Vicarious substitution reaction Methods 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
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- 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
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Abstract
The invention discloses a phase difference universal phase checking device and a phase checking method adopted in the device. The device comprises a first connecting terminal, a common terminal, a second connecting terminal, an overvoltage protection circuit, a switch selection circuit, a waveform conversion circuit, a microprocessor circuit, a first connecting terminal live indicator lamp, a second connection terminal live indicator lamp, an in-phase indicator lamp, an out-phase indicator lamp, a power indicator lamp, a switching circuit, a charging circuit and a battery circuit. The universal phase checking device and the phase checking method have the advantages that the phase relation is checked by the utilization of phase differences, so that the device is not limited by the voltage and has universality; the device is easy to operate, high in safety and universality, and capable of effectively avoiding potential safety hazards caused by high pressure phase checking, and therefore safety of workers and equipment is guaranteed, and safety of phase checking operation is improved; by the utilization of a phase checking circuit of the device, misjudgement cannot be caused, and meanwhile the device has the function of verification of live parts.
Description
Technical field:
The invention belongs to the technical field of power equipment, it is related to the phase order relation of voltage between switch cubicle and high-voltage charged body
Nuclear phase technology, more particularly, it relates to the core that a kind of omnipotent phase checking device of phase-difference type and this device are adopted
Phase method.
Background technology:
Domestic at present conventional voltage difference is essentially confined to it is generally recognized that between a-a for the test of high-tension switch cabinet nuclear phase
Voltage difference close to zero, i.e. identical voltage, now the luminous tube of phase checking device do not work；Line voltage voltage difference between a-b, a-c is relatively
Greatly, the luminous tube of phase checking device is shinny, this kind of test mode for two lines road voltage essentially identical in the case of can be calibrated
Really check out phase place, during homophase voltage difference minimum it is considered that close to null value, during out-phase, voltage difference is larger, but when two
Bar line voltage distribution difference in the case of, even if during homophase voltage difference also ratio is larger, cannot be judged using voltage differential nuclear phase
It is homophase or out-phase, especially in actual applications, the magnitude of voltage that capacitance type sensor capacitance difference is coupled out can not possibly be complete
Entirely reach consistent, thus traditional voltage difference high-tension line nuclear phase test can be there is a problem of serious.
Content of the invention:
For above-mentioned prior art, the technical problem to be solved is to provide one kind to utilize the omnipotent core of phase-difference type
The phase order relation of voltage between phase device and then the different switch cubicles of verification and high-voltage charged body, even if voltage difference is relatively between homophase
Greatly, phase contrast should be identical, that is, ensure that a phase is corresponding with a, b phase is corresponding with b, c phase and c are corresponding, forbid different relative
Should, therefore can solve the above problems, the safety that after ensureing maintenance, power system puts into operation.
To achieve these goals, the technical scheme that the present invention takes is: a kind of omnipotent phase checking device and its method, is used for
The phase relation of the different switch cubicles of verification and line voltage distribution is it is characterised in that it includes: the first binding post, public terminal, the
Two binding posts, overvoltage crowbar, switch selection circuit, waveform translation circuit, microcontroller circuit, the first terminals subband
Electric display lamp, the powered display lamp of the second binding post, homophase display lamp, out-phase display lamp, power supply indicator, on-off circuit, fill
Circuit and battery circuit；The described input of the first binding post is connected with a high pressure equipment, for gathering this height
The voltage of pressure equipment and voltage phase signal；The described input of the second binding post is connected with another high pressure equipment,
For gathering voltage and the voltage phase signal of this high pressure equipment；The input of described public terminal is public with high pressure equipment
End connects；The outfan of the first binding post, the second binding post and public terminal input with overvoltage crowbar respectively
Connect；Described overvoltage crowbar includes the first bi-directional voltage stabilizing diode, the second bi-directional voltage stabilizing diode, the first electric capacity and
Two electric capacity, the first bi-directional voltage stabilizing diode and the first electric capacity are connected in parallel between the first binding post and public terminal, and second is two-way
Zener diode and the second electric capacity are connected in parallel between the second binding post and public terminal；The outfan of overvoltage crowbar with open
The input closing selection circuit connects, and the outfan of switch selection circuit is connected with the input of waveform translation circuit, and waveform becomes
The a/d end of the outfan and microcontroller circuit that change circuit is connected, the powered display lamp of the first binding post, the second terminals subband
Electric display lamp, homophase display lamp, out-phase display lamp, the power supply indicator and on-off circuit i/o mouth with microcontroller circuit respectively
Connect, the outfan of charging circuit is connected with the input of battery circuit, the outfan of battery circuit and microcontroller circuit
Power end connects.
Further, described switch selection circuit includes the first electrical switch, the second electrical switch, first resistor partial pressure electricity
Road and second resistance bleeder circuit, the wherein first electrical switch and the series connection of first resistor bleeder circuit, the second electrical switch and the
Two resistor voltage divider circuit series connection.
Further, described waveform changing circuit includes and gate circuit, the first comparison circuit and the second comparison circuit, and first
Comparison circuit and the second comparison circuit three phase sine voltage waveform signal is changed into after square-wave signal be input to gate circuit in,
With gate circuit by two-way square-wave signal phase with.
Further, described switch selection circuit is electrical switch.
Further, described waveform translation circuit adopts comparator and NAND gate circuit.
Further, described on-off circuit adopts touch key.
Further, described charging circuit adopts usb charging module.
Further, the described powered display lamp of the first binding post, the powered display lamp of the second binding post, homophase instruction
Lamp, out-phase display lamp and power supply indicator are light emitting diode.
In order to realize and technique scheme identical goal of the invention, present invention also offers above-described omnipotent nuclear phase
The nuclear-phase method that device adopts, its technical scheme is:
The input of the first described binding post and the second binding post is passed through external wire and is shown with tested electrification in high voltage
Show that device nuclear phase hole connects, or be connected with the outfan of vicariouss voltage sensor, the other end is connected with phase checking device, public terminal
It is connected with the common port of two high pressure equipmentes or ground by external wire；Two voltage phase signals are through waveform translation circuit
In comparator sine wave is converted to square wave, NAND gate circuit by two-way square-wave signal phase with after obtain phase signal, warp
Cross microcontroller circuit relatively after, indication signal is issued to corresponding display lamp；If after contrast being homophase, homophase display lamp
Bright, if out-phase, out-phase display lamp is bright；Three described external wire length are between 1-10 rice.
Further, think that phase difference value is not more than 10 ° when checking phase relation, that is, 0 ° -10 ° is homophase, and phase difference value is not
It is out-phase less than 30 °.
The beneficial effect comprise that: check phase relation by using phase contrast, do not limited by voltage levels and have
There is versatility, and this device is simple to operate, safe, highly versatile, the safety that high-voltage nuclear phase brings can be effectively prevented from hidden
Suffering from, thus protecting the safety of staff and equipment, improve the safety of nuclear phase work；By using this device nuclear phase electricity
Road will not produce erroneous judgement, have electroscope function simultaneously.
Brief description:
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of the overvoltage crowbar of the present invention；
Fig. 3 is the structural representation of the switch protecting circuit of the present invention；
Fig. 4 is the structural representation of the waveform translation circuit of the present invention.
Specific embodiment:
With reference to the accompanying drawings and examples, the present invention is expanded on further.In the following detailed description, only pass through explanation
Mode describes some one exemplary embodiment of the present invention.Undoubtedly, those of ordinary skill in the art will be consequently realised that,
In the case of without departing from the spirit and scope of the present invention, can by with various different in the way of described embodiment is repaiied
Just.Therefore, accompanying drawing and description are inherently illustrative, rather than are used for limiting scope of the claims.
For the currently known technology described in solving the problems, such as in this specification background section and overcome it to lack
Fall into, realize the phase order relation of voltage and the goal of the invention of electrical verification between the different switch cubicle of verification and high-voltage charged body, the present invention adopts
The technical scheme taking is:
Refer to Fig. 1, a kind of omnipotent phase checking device, this device includes the first binding post 1, public terminal 2, the second wiring
Terminal 3, overvoltage crowbar 4, switch selection circuit 5, waveform translation circuit 6, microcontroller circuit 7, the first terminals subband
Electric display lamp 8, the powered display lamp of the second binding post 9, homophase display lamp 10, out-phase display lamp 11, power supply indicator 12, switch
Circuit 13, charging circuit 14 and battery circuit 15.
Refer to Fig. 2, have the setting of two sets of identical circuit in overvoltage crowbar it can be seen that the first bi-directional voltage stabilizing two
Pole pipe 4.1 and the first electric capacity 4.2 are in parallel, and the second bi-directional voltage stabilizing diode 4.3 and the second electric capacity are in parallel, in the first parallel-connection structure
Two ends are connected with the first binding post 1 and public terminal 2 respectively, are connected with the second binding post respectively at the two ends of the second parallel-connection structure
3 and public terminal 2；The input of the first binding post 1 is connected with a high pressure equipment, for gathering the electricity of this high pressure equipment
Pressure and voltage phase signal, the second binding post 3, with by being connected with another high pressure equipment, gathers the electricity of this high pressure equipment
Pressure and voltage phase signal, public terminal 2 passes through to connect the common port (normally coupled to ground) of two tested high pressure equipmentes, and first connects
The magnitude of voltage receiving and phase signal are inputted overvoltage protection electricity by line terminals 1, the second binding post 3 and public terminal 2 respectively
Lu Zhong, to prevent phase checking device from leading to short circuit accident because of overvoltage or superpressure.
The voltage phase signal that binding post receives is output as j1 and j2 two after overvoltage crowbar 4 voltage stabilizing process
Signal, and input a signal in switch selection circuit.
Refer to Fig. 3, the input of switch selection circuit 5 inputs two voltage phase signals of j1 and j2, warp respectively respectively
The first electrical switch 5.1 He is output a signal to after crossing first resistor bleeder circuit 5.3 and second resistance bleeder circuit 5.4 blood pressure lowering
At second electrical switch 5.2, electrical switch is used for controlling the startup of this device, specifically adopts cd4051 or cd4052 model core
Piece, the outfan of switch selection circuit output corresponding with j1 and j2 two signals of j3 and j4.
Refer to Fig. 4, switch selection circuit 5 is connected with the input of waveform translation circuit 6, j3 and j4 signal inputs respectively
In the first comparison circuit 6.2 and the second comparison circuit 6.3 in waveform changing circuit 6, using lm358 model in comparison circuit
Chip, three phase sine voltage waveform signal is changed into square-wave signal, and the square-wave signal of two-way output is input to and gate circuit
6.1, with gate circuit 6.1 by two-way square-wave signal phase with after obtain phase signal j5.
Described uses 74hc08 model chip with gate circuit 6.1.
The outfan of waveform translation circuit 6 is connected with the a/d end of microcontroller circuit 7, and phase signal j5 is input to micro-
Processor is identified judging.
First binding post powered display lamp 8, the powered display lamp of the second binding post 9, homophase display lamp 10, out-phase instruction
Lamp 11, power supply indicator 12 and on-off circuit 13 are connected with the i/o mouth of microcontroller circuit 7 respectively, if the first binding post 1 connects
Enter powered nuclear phase hole, then the first binding post powered display lamp 8 is bright；If the second binding post 3 accesses powered nuclear phase hole, second
Binding post powered display lamp 9 is bright, and therefore this device has electroscope function；If the first binding post 1 and 3 liang of the second binding post
Road voltage signal phase signal j5 is less than 10 ° after microprocessor judges, then homophase display lamp 10 is bright；If the first binding post
1 and the second binding post 3 two-way voltage signal phase contrast be more than 30 °, then out-phase display lamp 11 is bright；When on-off circuit 13 is opened,
Then power supply indicator 12 is bright, and when on-off circuit 13 closes, then power supply indicator 12 goes out.
Touch key is used as switch main body in on-off circuit 13.
Microprocessor adopts pic series or avr series or 430 series or 51 series monolithics.
The outfan of charging circuit 14 is connected with the input of battery circuit 15, and the middle employing usb of charging circuit 14 charges
Module, charges flexibly.
The outfan of battery circuit 15 is connected with the power end of microcontroller circuit 7.Pass through in battery circuit 15 to adopt
3.6v chargeable lithium cell is powered to whole device.
Above in conjunction with accompanying drawing, the present invention is exemplarily described it is clear that the present invention implements is not subject to aforesaid way
Restriction, as long as employing the improvement of various unsubstantialities that method of the present invention design and technical scheme are carried out, or without changing
Enter and the design of the present invention and technical scheme are directly applied to other occasions, all within protection scope of the present invention.
Claims (10)
1. a kind of omnipotent phase checking device, for checking the phase relation of different switch cubicles and line voltage distribution it is characterised in that it wraps
Include: the first binding post (1), public terminal (2), the second binding post (3), overvoltage crowbar (4), switch selection circuit
(5), waveform translation circuit (6), microcontroller circuit (7), the powered display lamp of the first binding post (8), the second terminals subband
Electric display lamp (9), homophase display lamp (10), out-phase display lamp (11), power supply indicator (12), on-off circuit (13), charging electricity
Road (14) and battery circuit (15)；The described input of the first binding post (1) is connected with a high pressure equipment, is used for adopting
Collect voltage and the voltage phase signal of this high pressure equipment；The described input of the second binding post (3) is set with another high pressure
Standby it is connected, for gathering voltage and the voltage phase signal of this high pressure equipment；The described input of public terminal (2) and height
The common port of pressure equipment connects；The outfan of the first binding post (1), the second binding post (3) and public terminal (2) respectively with
The input of overvoltage crowbar (4) connects；Described overvoltage crowbar (4) include the first bi-directional voltage stabilizing diode (4.1),
Second bi-directional voltage stabilizing diode (4.3), the first electric capacity (4.2) and the second electric capacity (4.4), the first bi-directional voltage stabilizing diode (4.1)
And first electric capacity (4.2) be connected in parallel between the first binding post (1) and public terminal (2), the second bi-directional voltage stabilizing diode (4.3)
And second electric capacity (4.4) be connected in parallel between the second binding post (3) and public terminal (2)；The outfan of overvoltage crowbar (4)
It is connected with the input of switch selection circuit (5), the input of the outfan of switch selection circuit (5) and waveform translation circuit (6)
End connects, and the outfan of waveform translation circuit (6) is connected with the a/d end of microcontroller circuit (7), the powered finger of the first binding post
Show lamp (8), the powered display lamp of the second binding post (9), homophase display lamp (10), out-phase display lamp (11), power supply indicator
(12) it is connected with the i/o mouth of microcontroller circuit (7) respectively with on-off circuit (13), the outfan of charging circuit (14) and battery
The input of circuit (15) connects, and the outfan 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 it is characterised in that: described switch selection circuit (5) bag
Include the first electrical switch (5.1), the second electrical switch (5.2), first resistor bleeder circuit (5.3) and second resistance bleeder circuit
(5.4), the wherein first electrical switch (5.1) and first resistor bleeder circuit (5.3) series connection, the second electrical switch (5.2) and the
Two resistor voltage divider circuits (5.4) are connected.
3. a kind of omnipotent phase checking device according to claim 1 it is characterised in that: described waveform changing circuit (6) bag
Include and gate circuit (6.1), the first comparison circuit (6.2) and the second comparison circuit (6.3), the first comparison circuit (6.2) and second
Comparison circuit (6.3) three phase sine voltage waveform signal is changed into after square-wave signal be input to gate circuit (6.1) in, with door
Circuit (6.1) by two-way square-wave signal phase with.
4. a kind of omnipotent phase checking device according to claim 1 it is characterised in that: described switch selection circuit (5) is
Electrical switch.
5. a kind of omnipotent phase checking device according to claim 1 it is characterised in that: described waveform translation circuit (6) is adopted
With comparator and and gate circuit.
6. a kind of omnipotent phase checking device according to claim 1 it is characterised in that: described on-off circuit (13) is using light
Touch of key-press.
7. a kind of omnipotent phase checking device according to claim 1 it is characterised in that: described charging circuit (14) adopts
Usb charges.
8. a kind of omnipotent phase checking device according to claim 1 it is characterised in that: the described powered finger of the first binding post
Show lamp (8), the powered display lamp of the second binding post (9), homophase display lamp (10), out-phase display lamp (11) and power supply indicator
(12) it is light emitting diode.
9. a kind of omnipotent phase checking device according to claim 1-8 any one adopts nuclear-phase method it is characterised in that:
The input of described the first binding post (1) and the second binding post (3) passes through external wire and tested HV live displaying
Device nuclear phase hole connects, or is connected with the outfan of vicariouss voltage sensor, and the other end is connected with phase checking device, public terminal
(2) it is connected with the common port of two high pressure equipmentes or ground by external wire；Two voltage phase signals convert through waveform
Sine wave is converted to square wave by the comparator in circuit (6), NAND gate circuit by two-way square-wave signal phase with after obtain phase contrast
Signal, after microcontroller circuit (7) compares, indication signal is issued to corresponding display lamp；If after contrast being homophase,
Homophase display lamp (10) is bright, if out-phase, out-phase display lamp (11) is bright；Three external wire length are between 1-10 rice.
10. according to claim 9 nuclear-phase method it is characterised in that: verification phase relation when think that phase difference value is not more than
10 °, that is, 0 ° -10 ° is homophase, and it is out-phase that phase difference value is not less than 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410181281.5A CN103926478B (en) | 2014-04-30 | 2014-04-30 | Universal phase checking device and phase checking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410181281.5A CN103926478B (en) | 2014-04-30 | 2014-04-30 | Universal phase checking device and phase checking method |
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| CN103926478A CN103926478A (en) | 2014-07-16 |
| CN103926478B true CN103926478B (en) | 2017-02-01 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105021891B (en) * | 2015-08-03 | 2018-02-06 | 国家电网公司 | Power distribution network base station type phase checking device |
| CN107329007A (en) * | 2017-06-09 | 2017-11-07 | 国网上海市电力公司 | A kind of universal secondary nuclear phase instrument for transformer station |
| 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 |
| CN112910220B (en) * | 2021-01-28 | 2023-07-25 | 维沃移动通信有限公司 | Power supply device and electronic apparatus |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0238869A (en) * | 1988-07-28 | 1990-02-08 | Meidensha Corp | Phase sequence checker for high voltage distribution line |
| CN2788200Y (en) * | 2004-12-28 | 2006-06-14 | 广东省江门市新会区电气防误装置设备厂 | High voltage electric display, lockdown and core phase integral equipment |
| CN101419248A (en) * | 2008-12-11 | 2009-04-29 | 北京合锐赛尔电力科技有限公司 | Charge display device |
| CN102253273A (en) * | 2011-04-28 | 2011-11-23 | 大连丰和电力科技有限公司 | High-voltage electrified display with electricity checking and phase detection functions |
| CN102590645B (en) * | 2011-12-21 | 2014-07-23 | 上海东润供电实业有限公司 | Phase testing method for alternating current high-voltage power supply circuit by using single-pole phase testing device |
| CN103116075B (en) * | 2013-01-29 | 2015-07-08 | 上海市电力公司 | Intelligent phase-checking device for P-type power distribution station |
| CN203825099U (en) * | 2014-04-30 | 2014-09-10 | 国网河南省电力公司商丘供电公司 | Universal phase verification device |
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Owner name: SHANGQIU POWER SUPPLY COMPANY OF STATE GRID HENAN Effective date: 20150409 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: SHANGQIU POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER COMPANY Effective date: 20150409 |
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Effective date of registration: 20150409 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: Shangqiu Power Supply Company of State Grid Henan Electric Power Company Applicant after: SHANGQIU TIANYU ELECTRIC POWER ENGINEERING SURVEY & DESIGN CO., LTD. Address before: Suiyang District Shangqiu city Henan Province Cultural Road 476000 Applicant before: Shangqiu Power Supply Company of State Grid Henan Electric Power Company |
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Inventor after: Zheng Xincai Inventor after: Yang Sumei Inventor after: Jiang Junjie Inventor after: Kong Xiangchen Inventor after: Cao Haijun Inventor after: Liu Wei Inventor after: Liang Kai Inventor after: Bai Kun Inventor after: Guo Chao Inventor after: Peng Wanting Inventor after: Bi Liang Inventor after: Han Hui Inventor before: Liu Wei Inventor before: Cao Haijun Inventor before: Jiang Junjie Inventor before: Cai Lei Inventor before: Liang Junde Inventor before: Liang Kai Inventor before: Sun Tiankun Inventor before: Zhang Xuekun |
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