CN201509064U - Three-phase power source phase-sequence adjusting device - Google Patents
Three-phase power source phase-sequence adjusting device Download PDFInfo
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- CN201509064U CN201509064U CN2009200559570U CN200920055957U CN201509064U CN 201509064 U CN201509064 U CN 201509064U CN 2009200559570 U CN2009200559570 U CN 2009200559570U CN 200920055957 U CN200920055957 U CN 200920055957U CN 201509064 U CN201509064 U CN 201509064U
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Abstract
The utility model relates to a three-phase power source phase-sequence adjusting device which comprises a signal output control circuit with an input end connected with a R phase, a S phase and a T phase of a three-phase power source and an alternating current contactor group. The signal output control circuit comprises a power source phase sequence detecting circuit, a voltage comparing control output circuit and a pressure-stabilizing power supply circuit for supplying power for each circuit; and a time delay output circuit is arranged in the voltage comparing control output circuit. The signal output control circuit is used for outputting a control signal to the alternating current contactor group; and the alternating current contactor group acts according to the control signal, so that the output of the three-phase power source with accurate phase sequence is obtained. The utility model not only can give an alarm for the default phase or the misphase of the three-phase power source, but also can be automatically adjusted without manual adjustment, so that the maintenance expense is reduced. In addition, the phase-sequence adjusting device can be mounted at the input and output end of the three-phase power source as an independent device, has low cost and convenient installation and also effectively prevents the misoperation of electrical parts under the electromagnet interference or the voltage fluctuation, thereby avoiding frequent switching.
Description
Technical field
The utility model relates to a kind of monitoring and adjusting device of three phase mains, specifically a kind of three-phase power supply phase sequence automatic regulating apparatus.
Background technology
Because move, telecommunication signal station and places, base station such as railway signal station and collection control room are distributed on the outlying area or the mountain ridge more, because of factors such as environment is abominable are not suitable for keeping, are unattended automatic machine room throughout the year.But when the external power source circuit causes power phase to adjust because of reasons such as damage or maintenances, the three phase mains in these places, base station of dispensing will cause the equipment cisco unity malfunction, even cause heavy losses, so must send someone manually to adjust, cause the increase of maintenance cost.The present three phase mains air conditioner supervising device that uses, after detecting air-conditioning three-phase power supply phase sequence misphase or phase shortage, just report fault not correct automatically, need cut off the electricity supply, manually repeatedly adjust phase sequence correct after, and air-conditioning is re-powered start could operate as normal.
The utility model content
The technical problems to be solved in the utility model provides a kind of three-phase power supply phase sequence adjusting device of automatic adjustment three-phase power supply phase sequence.
In order to solve the problems of the technologies described above, the utility model adopts following scheme:
A kind of three-phase power supply phase sequence adjusting device, the R that comprises input and three phase mains mutually, S phase, T the signal output control circuit and the A.C. contactor group that are connected.Described signal output control circuit outputs a control signal on the A.C. contactor group, the signal output control circuit comprises the power phase testing circuit, voltage ratio is than controlling output circuit and the voltage-stabilized power supply circuit of power supply is provided to each circuit, voltage ratio is than also being provided with the time-delay output control circuit in the controlling output circuit, power phase testing circuit output connects than controlling output circuit with voltage ratio, voltage ratio connects with the A.C. contactor group than controlling output circuit, A.C. contactor group input is connected with three phase mains, and the R that often opens input and three phase mains of A.C. contactor group mutually, S reaches T mutually and is connected.
The R of the three phase mains that described and signal output control circuit input connect be connected in series successively mutually resistance R 1, capacitor C 6 and resistance R 2, T be connected in series successively mutually resistance R 3, capacitor C 7 and resistance R 4, R and T are in parallel and constitute the power phase testing circuit, are used to obtain the voltage V1 of 7 of the voltage V0 of 2 of capacitor C 6 and resistance R and resistance R 3 and capacitor C.
Voltage ratio is than controlling output circuit, three phase mains T and resistance R 3, R5 and voltage stabilizing didoe D5 connect the back and connect with triode Q1 base stage, three phase mains R and resistance R 1, capacitor C 6 and diode D6 connect the back and connect with triode Q1 base stage, connect with triode Q2 base stage behind the triode Q1 collector electrode series diode D7, after connecting with resistance R 7, triode Q2 collector electrode connects with triode Q3 base stage, after connecting with resistance R 9 and diode D11, triode Q3 collector electrode connects with triode Q4 base stage, triode Q4 collector electrode and relay K J2 are connected in series and export control signal KM2, triode Q2 collector electrode and diode D8, resistance R 10 and diode D9 series connection back connect with triode Q4 base stage, triode Q5 collector electrode and the relay K J1 output control signal KM1 that is connected in series, triode Q5 collector electrode is series diode D10 and connect with diode D11 is anodal also.
The R that voltage-stabilized power supply circuit is got three-phase alternating-current supply connects with transformer T input for the alternating current input mutually, the transformer input is connected in parallel to piezo-resistance RV and capacitor C 1, the transformer output connects with full-wave rectifying circuit, the full-wave rectifying circuit output connects with voltage stabilizing chip input, be connected in parallel to electrochemical capacitor C2 and capacitor C 3 between full-wave rectifying circuit and the voltage stabilizing chip, the voltage stabilizing chip output is connected in parallel to capacitor C 4 and capacitor C 5.
The A.C. contactor group comprises A.C. contactor A and A.C. contactor B, and the normal-closed end of A.C. contactor A connects with the coil of A.C. contactor B, and relay K J1 output connects with the normal-closed end of A.C. contactor A; The normal-closed end of A.C. contactor B connects with the coil of A.C. contactor A, relay K J2 output connects with the normal-closed end of A.C. contactor B, the S phase output terminal of A.C. contactor B connects with the T phase output terminal of A.C. contactor A, and the T phase output terminal of A.C. contactor B connects with the S phase output terminal of A.C. contactor A.
Further, described signal output control circuit also is provided with the time-delay output control circuit, in triode Q1 collector electrode connect pull-up resistor R6 and and ground between be connected to electrochemical capacitor C8, between triode Q2 base stage and ground and be connected to capacitor C 9, triode Q4 collector electrode series diode D8, electrochemical capacitor C11 and ground connection.Triode Q1, Q2, Q4 and Q5 all adopt the NPN pipe, and Q3 adopts the PNP pipe.
The utility model can also be adjusted phase sequence voluntarily in the output of monitoring three phase mains, guarantee to have demonstrate,proved to have only the output of one tunnel control signal by the NPN type pipe and the positive-negative-positive that adopt triode, normal-closed end by double cross stream contactor is controlled the other side mutually, avoids power supply short circuit output; Also increase the time-delay output control circuit, effectively prevented the misoperation of electric device under electromagnetic interference or voltage fluctuation, avoided frequent switching, prolonged useful life; Also can be used as self-contained unit and be installed in the power supply input/output terminal, do not influence the installation of other equipment, easy for installation, of many uses.
Description of drawings
Embodiment
For the ease of those skilled in the art's understanding, the utility model is described in further detail below in conjunction with embodiment and accompanying drawing:
In conjunction with referring to shown in Fig. 1 to 3, the R that the three-phase power supply phase sequence adjusting device that the utility model preferred embodiment provides comprises input and three phase mains mutually, S phase, T the signal output control circuit and the A.C. contactor group that are connected.The signal output control circuit outputs a control signal on the A.C. contactor group, the signal output control circuit comprises voltage-stabilized power supply circuit 1, power phase testing circuit 2, voltage ratio is than controlling output circuit 3, voltage ratio is than also being provided with time-delay output control circuit 4 in the controlling output circuit 3, voltage-stabilized power supply circuit 1 connects than controlling output circuit 3 with voltage ratio, power phase testing circuit 2 outputs connect than controlling output circuit 3 with voltage ratio, voltage ratio connects with the A.C. contactor group than controlling output circuit 3, and the Chang Kaiduan of A.C. contactor group and the R of three phase mains are mutually, S reaches T mutually and is connected.
The R of the three phase mains that described and signal output control circuit input connect be connected in series successively mutually resistance R 1, capacitor C 6 and resistance R 2, T is in series and connects resistance R 3, capacitor C 7 and resistance R 4, R is in parallel with T and constitutes power phase testing circuit 2, utilize capacitance-resistance relation on the three-phase alternating current to adjust phase relation between the phase power supply, obtain the voltage V1 of 7 of the V0 of capacitor C 6 and 2 voltages of resistance R and resistance R 3 and capacitor C.When the phase sequence balance, the voltage difference of V1 and V0 is a low level, and when phase sequence was uneven, the voltage difference of V1 and V0 was a high level.
Voltage ratio than controlling output circuit 3 is: in parallel with diode D6 after voltage stabilizing didoe D5 connects with resistance R 5, connect with triode Q1 base stage again after the parallel connection, resistance R 5 connects with resistance R 3 one ends, diode D6 is anodal to be connected with capacitor C 6 one ends, connect with triode Q2 base stage behind the triode Q1 collector electrode series diode D7, after connecting with resistance R 7, triode Q2 collector electrode connects with triode Q3 base stage, after connecting with resistance R 9 and diode D11, triode Q3 collector electrode connects with triode Q4 base stage, triode Q4 collector electrode and relay K J2 are connected in series and export control signal KM2, triode Q2 collector electrode and diode D8, resistance R 10, diode D9 series connection back connects with triode Q4 base stage, triode Q5 collector electrode and the relay K J1 output control signal KM1 that is connected in series, triode Q5 collector electrode is series diode D10 and connect with diode D11 is anodal also.When the phase sequence balance, the voltage difference that is V1 and V0 is a low level, the Q1 base stage is not conducting of low level, and the Q2 base stage is the high level conducting, makes very low level of Q2 current collection, and then the Q3 base stage is a low level, and Q3 is the PNP pipe, therefore conducting makes very high level of Q3 current collection, is high level and conducting rear drive relay K J2 output AC220V signal KM2 thereby make the Q4 base stage.When phase sequence is uneven, the voltage difference that is V1 and V0 is a high level, the Q1 base stage is high level and conducting, the Q1 current collection is low level very, the Q2 base stage is not conducting of low level, and then to provide power supply by source of stable pressure be high level to the Q2 collector electrode, and the Q5 base stage is high level and conducting, make very low level of Q5 current collection, thereby drive relay K J1 output AC220V signal KM1.Described triode Q1, Q2, Q4 and Q5 are NPN type triode, and triode Q3 is the positive-negative-positive triode.
By connect at triode Q1 collector electrode pull-up resistor R6 and and ground between be connected to electrochemical capacitor C8, between triode Q2 base stage and ground and be connected to capacitor C 9, triode Q4 collector electrode series diode D8, electrochemical capacitor C11 and ground connection, also be in series with resistance R 10 between triode Q2 collector electrode and triode Q5, capacitor C 11 connects with resistance R 10, forms time-delay output control circuit 4.When the phase sequence balance, triode Q1 base stage is a low level, and VCC dashes electricity by R6 to capacitor C 8 and C9, makes triode Q2 collector electrode reach low level and need delay time and just can make control signal KM2 output in about 2 seconds; When phase sequence was uneven, triode Q1 base stage was a high level, and VCC makes triode Q5 base stage reach low level to capacitor C 11 towards electricity by resistance R 10 and need delay time and just can make control signal KM1 output in about 2 seconds, guarantee the stability of voltage detecting sampling and output.
The R that voltage-stabilized power supply circuit 1 is got three-phase alternating-current supply connects with transformer T input for the alternating current input mutually, for whole device provides power supply.The transformer input is connected in parallel to piezo-resistance RV and capacitor C 1, the transformer output connects with full-wave rectifying circuit, the full-wave rectifying circuit output connects with voltage stabilizing chip input, be connected in parallel to electrochemical capacitor C2 and capacitor C 3 between full-wave rectifying circuit and the voltage stabilizing chip, the voltage stabilizing chip output is connected in parallel to capacitor C 4 and capacitor C 5, alternating current carries out the stable 12V DC power supply of filtering output after ripple, the voltage stabilizing of voltage stabilizing chip after by transformer step-down and full-wave rectification after filtration again, and the stabilized voltage power supply of reference voltage and relay coil is provided for circuit.
The R that exchanges contact group input and three phase mains mutually, S reaches T mutually and be connected, the A.C. contactor group comprises A.C. contactor A and A.C. contactor B, the normal-closed end of A.C. contactor A connects with the coil of A.C. contactor B, and relay K J1 output connects with the normal-closed end of A.C. contactor A; The normal-closed end of A.C. contactor B connects with the coil of A.C. contactor A, relay K J2 output connects with the normal-closed end of A.C. contactor B, the S of A.C. contactor B output and the T of A.C. contactor A output link, and the T of A.C. contactor B output and the S of A.C. contactor A output link.When the phase sequence balance, signal output control circuit output control signal KM2 is through A.C. contactor B normal-closed end output AC220V, the coil electricity of control A.C. contactor A makes the three-phase Chang Kaiduan closure of A.C. contactor A, directly press R, S, the T phase sequence is exported three phase mains; When phase sequence was uneven, signal KM1 was through A.C. contactor A normal-closed end output AC220V, and the coil electricity of control A.C. contactor B makes the three-phase Chang Kaiduan closure of A.C. contactor B, thereby obtains the correct three phase mains output of phase sequence.
Claims (7)
1. three-phase power supply phase sequence adjusting device, the R that comprises input and three phase mains mutually, the S phase, signal output control circuit that T is connected and A.C. contactor group, it is characterized in that: described signal output control circuit outputs a control signal on the A.C. contactor group, the signal output control circuit comprises power phase testing circuit (2), voltage ratio is than controlling output circuit (3) and to the voltage-stabilized power supply circuit (1) of each circuit supply, voltage ratio is than also being provided with time-delay output control circuit (4) in the controlling output circuit (3), power phase testing circuit (2) output is connected than controlling output circuit (3) with voltage ratio, voltage ratio is connected with the A.C. contactor group than controlling output circuit (3), and the R that often opens input and three phase mains of A.C. contactor group mutually, S reaches T mutually and is connected.
2. three-phase power supply phase sequence adjusting device according to claim 1, it is characterized in that: the R of the three phase mains that described and signal output control circuit input connect be connected in series successively mutually resistance R 1, capacitor C 6 and resistance R 2, T be connected in series successively mutually resistance R 3, capacitor C 7 and resistance R 4, R and T are in parallel and constitute the power phase testing circuit, are used to obtain the voltage V1 of 7 of the voltage V0 of 2 of capacitor C 6 and resistance R and resistance R 3 and capacitor C.
3. three-phase power supply phase sequence adjusting device according to claim 2 is characterized in that: described voltage ratio than controlling output circuit (3) is: three phase mains T connects with resistance R 3, resistance R 5, voltage stabilizing didoe D5 and triode Q1 base stage mutually successively; Three phase mains R connects with resistance R 1, capacitor C 6, diode D6 and triode Q1 base stage mutually successively;
Connect with triode Q2 base stage behind the triode Q1 collector electrode series diode D7, after connecting with resistance R 7, triode Q2 collector electrode connects with triode Q3 base stage, after connecting with resistance R 9 and diode D11, triode Q3 collector electrode connects with triode Q4 base stage, triode Q4 collector electrode and relay K J2 are connected in series and export control signal KM2, connect with triode Q4 base stage after triode Q2 collector electrode is connected with diode D8, resistance R 10 and diode D9, triode Q5 collector electrode and relay K J1 are connected in series and export control signal KM1.
4. three-phase power supply phase sequence adjusting device according to claim 3, it is characterized in that: described triode Q1 collector electrode also be connected with pull-up resistor R6 and and ground between be connected to electrochemical capacitor C8, between triode Q2 base stage and ground and be connected to capacitor C 9, triode Q4 collector electrode is connected with diode D8, electrochemical capacitor C11 and ground connection.
5. three-phase power supply phase sequence adjusting device according to claim 3 is characterized in that: described triode Q1, Q2, Q4 and Q5 all adopt the NPN pipe, and triode Q3 adopts the PNP pipe.
6. according to each described three-phase power supply phase sequence adjusting device in the claim 1～5, it is characterized in that: described A.C. contactor group comprises A.C. contactor A and A.C. contactor B, the normal-closed end of A.C. contactor A connects with the coil of A.C. contactor B, and relay K J1 output connects with the normal-closed end of A.C. contactor A; The normal-closed end of A.C. contactor B connects with the coil of A.C. contactor A, relay K J2 output connects with the normal-closed end of A.C. contactor B, the S phase output terminal of A.C. contactor B connects with the T phase output terminal of A.C. contactor A, and the T phase output terminal of A.C. contactor B connects with the S phase output terminal of A.C. contactor A.
7. according to each described three-phase power supply phase sequence adjusting device in the claim 1～5, it is characterized in that: the R that described voltage-stabilized power supply circuit (1) is got three-phase alternating-current supply connects with transformer T input for the alternating current input mutually, the transformer input is connected in parallel to piezo-resistance RV and capacitor C 1, the transformer output connects with full-wave rectifying circuit, the full-wave rectifying circuit output connects with voltage stabilizing chip input, be connected in parallel to electrochemical capacitor C2 and capacitor C 3 between full-wave rectifying circuit and the voltage stabilizing chip, the voltage stabilizing chip output is connected in parallel to capacitor C 4 and capacitor C 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200559570U CN201509064U (en) | 2009-04-30 | 2009-04-30 | Three-phase power source phase-sequence adjusting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200559570U CN201509064U (en) | 2009-04-30 | 2009-04-30 | Three-phase power source phase-sequence adjusting device |
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| CN201509064U true CN201509064U (en) | 2010-06-16 |
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| CN2009200559570U Expired - Fee Related CN201509064U (en) | 2009-04-30 | 2009-04-30 | Three-phase power source phase-sequence adjusting device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104022542A (en) * | 2013-02-28 | 2014-09-03 | 三美电机株式会社 | Charge/discharge control circuit and method for controlling charge/discharge |
| CN106546831A (en) * | 2015-09-18 | 2017-03-29 | 承永资讯科技股份有限公司 | The judging phase order devices and methods therefor of three phase mains |
| CN111864559A (en) * | 2020-06-30 | 2020-10-30 | 国网辽宁省电力有限公司营口供电公司 | 400-volt bypass switch, nuclear phase current and voltage monitoring device and using method |
| CN112217189A (en) * | 2019-07-10 | 2021-01-12 | 广东Tcl智能暖通设备有限公司 | Automatic adjusting circuit for phase sequence of three-phase power supply of air conditioner and air conditioner |
-
2009
- 2009-04-30 CN CN2009200559570U patent/CN201509064U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104022542A (en) * | 2013-02-28 | 2014-09-03 | 三美电机株式会社 | Charge/discharge control circuit and method for controlling charge/discharge |
| CN104022542B (en) * | 2013-02-28 | 2018-02-06 | 三美电机株式会社 | Charge-discharge control circuit and charge/discharge control method |
| CN106546831A (en) * | 2015-09-18 | 2017-03-29 | 承永资讯科技股份有限公司 | The judging phase order devices and methods therefor of three phase mains |
| CN106546831B (en) * | 2015-09-18 | 2019-09-10 | 承永资讯科技股份有限公司 | The judging phase order devices and methods therefor of three phase mains |
| CN112217189A (en) * | 2019-07-10 | 2021-01-12 | 广东Tcl智能暖通设备有限公司 | Automatic adjusting circuit for phase sequence of three-phase power supply of air conditioner and air conditioner |
| CN111864559A (en) * | 2020-06-30 | 2020-10-30 | 国网辽宁省电力有限公司营口供电公司 | 400-volt bypass switch, nuclear phase current and voltage monitoring device and using method |
| CN111864559B (en) * | 2020-06-30 | 2023-11-07 | 国网辽宁省电力有限公司营口供电公司 | 400-volt bypass switch and nuclear phase current and voltage monitoring device and application method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20130430 |