CN2907025Y - Three-phase power voltage regulator with automatic phase sequence switchover function - Google Patents
Three-phase power voltage regulator with automatic phase sequence switchover function Download PDFInfo
- Publication number
- CN2907025Y CN2907025Y CNU2006200593493U CN200620059349U CN2907025Y CN 2907025 Y CN2907025 Y CN 2907025Y CN U2006200593493 U CNU2006200593493 U CN U2006200593493U CN 200620059349 U CN200620059349 U CN 200620059349U CN 2907025 Y CN2907025 Y CN 2907025Y
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- relay
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
- H02H11/004—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of incorrect phase sequence; with switching for obtaining correct phase sequence
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Abstract
The utility model discloses a three-phase electrical power stabilizer with phase sequence automatically switching function, which comprises a three phase voltage stabilizing circuit, a switching circuit for phase sequence output and an automatic control circuit; the switching circuit for phase sequence output comprises a positive sequence output contactor and an inverted sequence output contactor; the automatic control circuit comprises a fault-phase relay and an enable input circuit, the three phase power supply can be corrected automatically when phase sequence is wrong, ensuring a normal operation of three-phase electric equipment. The utility model is applied to all kinds of voltage stabilizer, such as: the parameter voltage stabilizer, the compensation type voltage stabilizer of mechanically voltage regulating, the inductive voltage regulating stabilizer and the new type controllable silicon non contact voltage stabilizer, as well as the voltage stabilizer of ''three phase unified adjusting mode'' and ''three phase respective adjusting mode''.
Description
Technical field
The utility model relates to a kind of three-phase power voltage regulator with phase sequence automatic switching function.
Background technology
The back level electric loading of three-phase power voltage regulator, major part has the three-phase power consumption equipment, as: three-phase air-conditioning, water pump, blower fan etc., the direction of rotation of these power consumption equipments is fixed, do not allow power phase to change, otherwise these power consumption equipments are equipped with on the equipment of anti-reverse-rotation device at some with regard to cisco unity malfunction, and the power supply misphase can cause the damage of equipment.For preventing the generation of above-mentioned fault, general three-phase power voltage regulator has all designed " misphase " defencive function, carries out " misphase " protection when the phase sequence mistake appears in power supply, cuts off three phase mains with the anti-tamper power consumption equipment.In normal electric power system, the probability of power supply network generation misphase is very low.But under some particular surroundingss, as in the frequent power supply occasion of switching of power network and small power station power supply, it still is higher that the misphase probability takes place, and pressurizer cut off output and protects when misphase took place, and all power consumption equipments are out of service, reduced the continuity of power supply.Especially at some unattended operations and to the exigent communication base station of power supply reliability, places such as microwave transmission station, fault-phase protection can't satisfy power consumption equipment to the continuity of power supply and the requirement of reliability.
In sum, three-phase power voltage regulator of the prior art exist can not automatic corresponding switching phase sequence when input phase sequence when change output phase sequence defective.
The utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of three-phase power voltage regulator with phase sequence automatic switching function is provided.
The technical scheme that the utility model adopted is: the utility model comprises common three-phase voltage stabilizing circuit, output phase sequence commutation circuit and automatic control circuit, described output phase sequence commutation circuit comprises positive sequence output contactor and inverted sequence output contactor, the input of described three-phase voltage stabilizing circuit is connected with three phase mains by threephase switch, the output of described three-phase voltage stabilizing circuit is connected with the input of described positive sequence output contactor and inverted sequence output contactor respectively, the output of described positive sequence output contactor and inverted sequence output contactor is in parallel in the input of described positive sequence output contactor and inverted sequence output contactor with being in parallel, all the other two-phase alter-parallels.
Described automatic control circuit comprises the misphase relay, fill output circuit perhaps, the coil of the coil of described positive sequence output contactor and inverted sequence output contactor, four binding posts of described misphase relay and power supply three-phase and four-line A, B, C, N is corresponding to be connected, described filling permitted output circuit by A, B, the C three-phase fills perhaps, and the normally open contact of output relay is composed in series, the power supply of described control circuit fills perhaps through described that output circuit is connected with the input of described misphase relay, the input of described misphase relay is connecting a pair of normally open contact and a pair of normally closed interlock of described misphase relay body apparatus, the other end of the normally closed interlock of described misphase relay body apparatus connects an end of the coil of described positive sequence contactor, the other end of the coil of described positive sequence contactor links to each other with zero-power line by the normally closed interlock of described inverted sequence contactor, the other end of the normally open contact of described misphase relay body apparatus connects an end of the coil of described inverted sequence contactor, and the other end of the coil of described inverted sequence contactor links to each other with zero-power line by the normally closed interlock of described positive sequence contactor.
The beneficial effects of the utility model are: because the utility model comprises common three-phase voltage stabilizing circuit, output phase sequence commutation circuit and automatic control circuit, described output phase sequence commutation circuit comprises positive sequence output contactor and inverted sequence output contactor, the input of described three-phase voltage stabilizing circuit is connected with three phase mains by threephase switch, the output of described three-phase voltage stabilizing circuit is connected with the input of described positive sequence output contactor and inverted sequence output contactor, the output of described positive sequence output contactor and inverted sequence output contactor is with being in parallel, be in parallel in the input of described positive sequence output contactor and inverted sequence output contactor, all the other two-phase alter-parallels, so have the phase sequence automatic switching function, when the phase sequence mistake of three phase supply power supply, can correct the phase sequence of three phase mains output automatically, guarantee the normal operation of three-phase power consumption equipment.
Description of drawings
Fig. 1 is the utility model main circuit structure schematic diagram;
Fig. 2 is the utility model control circuit structural representation.
Embodiment
As shown in Figure 1 and Figure 2, the utility model comprises common three-phase voltage stabilizing circuit 1, output phase sequence commutation circuit 2 and automatic control circuit 3.Described output phase sequence commutation circuit 2 comprises positive sequence output contactor 21 and inverted sequence output contactor 22, the input of described three-phase voltage stabilizing circuit 1 is connected with three phase mains by threephase switch, the output of described three-phase voltage stabilizing circuit 1 is connected with the input of described positive sequence output contactor 21 and inverted sequence output contactor 22 respectively, the output of described positive sequence output contactor 21 and inverted sequence output contactor 22 is with being in parallel, and is in parallel in the input of described positive sequence output contactor 21 and inverted sequence output contactor 22, all the other two-phase alter-parallels.Described automatic control circuit 3 comprises misphase relay 31, fill output circuit 32 perhaps, the coil of the coil of described positive sequence output contactor 21 and inverted sequence output contactor 22, four binding posts of described misphase relay 31 and power supply three-phase and four-line A, B, C, N is corresponding to be connected, described filling permitted output circuit 32 by A, B, the C three-phase fills perhaps, and the normally open contact of output relay is composed in series, the power supply of described control circuit fills perhaps through described that output circuit 32 is connected with the input of described misphase relay 31, the input of described misphase relay 31 is connecting a pair of normally open contact and a pair of normally closed interlock of described misphase relay 31 body apparatus, the other end of the normally closed interlock of described misphase relay 31 body apparatus connects an end of the coil of described positive sequence contactor 21, the other end of the coil of described positive sequence contactor 21 links to each other with zero-power line by the normally closed interlock of described inverted sequence contactor 22, the other end of the normally open contact of described misphase relay 31 body apparatus connects an end of the coil of described inverted sequence contactor 22, and the other end of the coil of described inverted sequence contactor 22 links to each other with zero-power line by the normally closed interlock of described positive sequence contactor 21.
The utility model only changes the main circuit and the control circuit of the output of three-phase pressurizer, has nothing to do with the voltage stabilizing form of pressurizer.Therefore the utility model is applicable to the pressurizer of various voltage stabilizing forms, as: parameter voltage stabilizator, the voltage stabilizing of mechanical regulating compensation formula, Induction Regulation formula pressurizer and the contactless pressurizer of novel thyristor.And being suitable for " three-phase is unified the adjustment mode " reaches " three-phase is adjusted mode respectively ".
Circuit theory:
When power phase is correct, the not adhesive of contact of misphase relay 31, the coil of positive sequence contactor 21 is connected with misphase relay normally closed interlock, three-phase when three-phase voltage stabilizing adjustment circuit reaches the precision of voltage regulation in the master board allows output relay, and totally three normally open contacts are all closed, and the coil of positive sequence contactor 21 is powered to threephase load by electric adhesive at this moment.
When the power phase mistake, the contact adhesive of misphase relay 31 switches, inverted sequence contactor 22 is powered to threephase load by electric adhesive, though power supply is a negative-phase sequence because of misphase, because of the paraphase interconnect function of inverted sequence contactor 22 still keeps powering to load positive phase sequence.
Claims (2)
1, a kind of three-phase power voltage regulator with phase sequence automatic switching function, it comprises common three-phase voltage stabilizing circuit (1), output phase sequence commutation circuit (2) and automatic control circuit (3), it is characterized in that: described output phase sequence commutation circuit (2) comprises positive sequence output contactor (21) and inverted sequence output contactor (22), the input of described three-phase voltage stabilizing circuit (1) is connected with three phase mains by threephase switch, the output of described three-phase voltage stabilizing circuit (1) is connected with the input of described positive sequence output contactor (21) with inverted sequence output contactor (22) respectively, the output of described positive sequence output contactor (21) and inverted sequence output contactor (22) is with being in parallel, and is in parallel in the input of described positive sequence output contactor (21) and inverted sequence output contactor (22), all the other two-phase alter-parallels.
2, three-phase power voltage regulator with phase sequence automatic switching function according to claim 1, it is characterized in that: described automatic control circuit (3) comprises misphase relay (31), fill output circuit (32) perhaps, the coil of the coil of described positive sequence output contactor (21) and inverted sequence output contactor (22), four binding posts of described misphase relay (31) and power supply three-phase and four-line A, B, C, N is corresponding to be connected, described filling permitted output circuit (32) by A, B, the C three-phase fills perhaps, and the normally open contact of output relay is composed in series, the power supply of described control circuit fills perhaps through described that output circuit (32) is connected with the input of described misphase relay (31), the input of described misphase relay (31) is connecting a pair of normally open contact and a pair of normally closed interlock of described misphase relay (31) body apparatus, the other end of the normally closed interlock of described misphase relay (31) body apparatus connects an end of the coil of described positive sequence contactor (21), the other end of the coil of described positive sequence contactor (21) links to each other with zero-power line by the normally closed interlock of described inverted sequence contactor (22), the other end of the normally open contact of described misphase relay (31) body apparatus connects an end of the coil of described inverted sequence contactor (22), and the other end of the coil of described inverted sequence contactor (22) links to each other with zero-power line by the normally closed interlock of described positive sequence contactor (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200593493U CN2907025Y (en) | 2006-05-24 | 2006-05-24 | Three-phase power voltage regulator with automatic phase sequence switchover function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200593493U CN2907025Y (en) | 2006-05-24 | 2006-05-24 | Three-phase power voltage regulator with automatic phase sequence switchover function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2907025Y true CN2907025Y (en) | 2007-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200593493U Expired - Fee Related CN2907025Y (en) | 2006-05-24 | 2006-05-24 | Three-phase power voltage regulator with automatic phase sequence switchover function |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888089A (en) * | 2010-06-13 | 2010-11-17 | 珠海科达信电子科技有限公司 | Three-phase power voltage stabilizer with three-phase and three respective single-phase output function |
| CN101895122A (en) * | 2010-06-13 | 2010-11-24 | 珠海科达信电子科技有限公司 | Output circuit of three-phase power voltage regulator |
| CN101699673B (en) * | 2009-12-07 | 2011-12-21 | 河南省电力公司许昌供电公司 | Novel manual phase modulator |
| EP2889978A1 (en) * | 2013-12-25 | 2015-07-01 | Toshiba Schneider Inverter Corporation | Phase sequence switching device for three-phase power supply |
| CN107884734A (en) * | 2017-10-24 | 2018-04-06 | 广东电网有限责任公司茂名供电局 | A kind of new phase-sequence meter test device |
| CN107910715A (en) * | 2017-06-19 | 2018-04-13 | 国网浙江省电力公司湖州供电公司 | A kind of thread-changing formula terminal box |
| CN109557348A (en) * | 2018-11-28 | 2019-04-02 | 邱雅君 | A kind of intelligent electric energy meter self conversion equipment of magnetic torque positive sequence backward |
-
2006
- 2006-05-24 CN CNU2006200593493U patent/CN2907025Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699673B (en) * | 2009-12-07 | 2011-12-21 | 河南省电力公司许昌供电公司 | Novel manual phase modulator |
| CN101888089A (en) * | 2010-06-13 | 2010-11-17 | 珠海科达信电子科技有限公司 | Three-phase power voltage stabilizer with three-phase and three respective single-phase output function |
| CN101895122A (en) * | 2010-06-13 | 2010-11-24 | 珠海科达信电子科技有限公司 | Output circuit of three-phase power voltage regulator |
| CN101895122B (en) * | 2010-06-13 | 2013-01-09 | 珠海科达信电子科技有限公司 | Output circuit of three-phase power voltage regulator |
| EP2889978A1 (en) * | 2013-12-25 | 2015-07-01 | Toshiba Schneider Inverter Corporation | Phase sequence switching device for three-phase power supply |
| CN107910715A (en) * | 2017-06-19 | 2018-04-13 | 国网浙江省电力公司湖州供电公司 | A kind of thread-changing formula terminal box |
| CN107884734A (en) * | 2017-10-24 | 2018-04-06 | 广东电网有限责任公司茂名供电局 | A kind of new phase-sequence meter test device |
| CN107884734B (en) * | 2017-10-24 | 2023-04-28 | 广东电网有限责任公司茂名供电局 | Phase sequence table testing arrangement |
| CN109557348A (en) * | 2018-11-28 | 2019-04-02 | 邱雅君 | A kind of intelligent electric energy meter self conversion equipment of magnetic torque positive sequence backward |
| CN109557348B (en) * | 2018-11-28 | 2021-02-23 | 哈尔滨汇鑫仪器仪表有限责任公司 | Magnetic torque positive sequence and negative sequence self-conversion device for intelligent electric energy meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20070530 Termination date: 20100524 |