CN103312028A - Delayed automatic switching starting circuit for dual power supplies - Google Patents
Delayed automatic switching starting circuit for dual power supplies Download PDFInfo
- Publication number
- CN103312028A CN103312028A CN2013102671222A CN201310267122A CN103312028A CN 103312028 A CN103312028 A CN 103312028A CN 2013102671222 A CN2013102671222 A CN 2013102671222A CN 201310267122 A CN201310267122 A CN 201310267122A CN 103312028 A CN103312028 A CN 103312028A
- Authority
- CN
- China
- Prior art keywords
- contactor
- coil
- normally
- time relay
- closed contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Motor And Converter Starters (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The invention discloses a delayed automatic switching starting circuit for dual power supplies, belongs to the technical field of electric motor power supply control devices and provides a circuit capable of guaranteeing accurate automatic switching of the dual power supplies of an electric motor. According to the technical scheme, the delayed automatic switching starting circuit for the dual power supplies comprises breakers, alternating current contactors, fuses and time relays, wherein a coil of the alternating current contactor CJ1 is CJ1.1, a main contact of the alternating current contactor CJ1 is CJ1.2, normally-closed contacts of the alternating current contactor CJ1 are CJ1.3 and CJ1.4, a coil of the alternating current contactor CJ2 is CJ2.1, a main contact of the alternating current contactor CJ2 is CJ2.2, normally-closed contacts of the alternating current contactor CJ2 are CJ2.3 and CJ2.4, a coil of the time relay SJ1 is SJ1.1, a delayed closing contact of the time relay SJ1 is SJ1.2, a coil of the time relay SJ2 is SJ2.1, and a delayed closing contact of the time relay SJ2 is SJ2.2. The delayed automatic switching starting circuit is applicable to the field of coal mines.
Description
Technical field
Duplicate supply time-delay automatic switchover start-up circuit of the present invention belongs to electric electromechanics source control device technical field.
Background technology
Because the particularity of colliery downhole production, underground work is very high to the requirement of safety, and especially at the damp and hot working face of high temperature, safety in production is vital; Coal mine is arranged with a lot of power consumption equipments; the dragging motor of these equipment mostly adopts dual power supply; working power and stand-by power supply; can guarantee equipment when the main supply electricity breaks down, switch to stand-by power supply, however because the complicated abominable operational environment in colliery; interference signal is many; particularly some underground power supply systems often the short time power down can occur, and namely " rolling electricity " situation occurs, and like this duplicate supply of motor is switched the great potential safety hazard of bringing.
Summary of the invention
The present invention overcomes the deficiency that prior art exists, and technical problem to be solved is: a kind of circuit that can guarantee that the motor duplicate supply accurately automaticallyes switch is provided.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: duplicate supply time-delay automatic switchover start-up circuit comprises: circuit breaker, A.C. contactor, fuse and the time relay, wherein:
The coil of A.C. contactor CJ1 is CJ1.1, and its main contacts is CJ1.2, and its normally-closed contact has two, is respectively normally-closed contact CJ1.3, CJ1.4;
The coil of A.C. contactor CJ2 is CJ2.1, and its main contacts is CJ2.2, and its normally-closed contact has two, is respectively normally-closed contact CJ2.3, CJ2.4;
The coil of time relay sj 1 is SJ1.1, and its timing closing contact is SJ1.2;
The coil of time relay sj 2 is SJ2.1, and its timing closing contact is SJ2.2;
The main circuit structure of motor D 1 is: inlet wire termination A, the B of circuit breaker DZ1, C the first three-phase alternating-current supply link to each other with the power end of motor D1 behind the main contacts CJ1.2 of the leading-out terminal serial connection A.C. contactor CJ1 of described circuit breaker DZ1;
Inlet wire termination U, the V of circuit breaker DZ2, W the second three-phase alternating-current supply link to each other with the power end of motor D1 behind the main contacts CJ2.2 of the leading-out terminal serial connection A.C. contactor CJ2 of described circuit breaker DZ2;
The control circuit structure of motor D 1 is: the end of fuse RT1 links to each other with the control circuit positive source, the other end of described fuse RT1 and connect the end of timing closing contact SJ2.2 of an end, time relay sj 2 of the timing closing contact SJ1.2 of time relay sj 1 and the end of the normally-closed contact CJ1.4 of A.C. contactor CJ1 after link to each other with the end of the normally-closed contact CJ2.4 of A.C. contactor CJ2;
The other end of the timing closing contact SJ1.2 of described time relay sj 1 links to each other with the control circuit power cathode after being connected in series successively coil CJ1.1 and the fuse RT2 of normally-closed contact CJ2.3, A.C. contactor CJ1 of A.C. contactor CJ2;
The other end of the timing closing contact SJ2.2 of described time relay sj 2 links to each other with the coil CJ1.1 of A.C. contactor CJ1 and the line between the fuse RT2 after being connected in series successively the coil CJ2.1 of the normally-closed contact CJ1.3 of A.C. contactor CJ1 and A.C. contactor CJ2;
Link to each other with the coil CJ1.1 of A.C. contactor CJ1 and the line between the fuse RT2 behind the coil SJ2.1 of the other end serial connection time relay sj 2 of the normally-closed contact CJ1.4 of described A.C. contactor CJ1;
Link to each other with the coil CJ1.1 of A.C. contactor CJ1 and the line between the fuse RT2 behind the coil SJ1.1 of the other end serial connection time relay sj 1 of the normally-closed contact CJ2.4 of described A.C. contactor CJ2.
The beneficial effect that the present invention compared with prior art has is: the present invention adds time-delay switching function in the control circuit of motor, the user can determine the time of switching according to specific circumstances, avoided the impact of the interference signals such as " rolling electricity " in the colliery on motor power, prevent the generation of misoperation, the safety of assurance personnel and equipment guarantees that the safety of coal production is carried out; Control circuit of the present invention is simple for structure, and is practical.
Description of drawings
The present invention will be further described in detail below in conjunction with accompanying drawing:
Fig. 1 is the main circuit diagram of motor of the present invention;
Fig. 2 is the control circuit figure of motor of the present invention.
Embodiment
As depicted in figs. 1 and 2, duplicate supply time-delay automatic switchover start-up circuit of the present invention comprises: circuit breaker, A.C. contactor, fuse and the time relay, wherein:
The coil of A.C. contactor CJ1 is CJ1.1, and its main contacts is CJ1.2, and its normally-closed contact has two, is respectively normally-closed contact CJ1.3, CJ1.4;
The coil of A.C. contactor CJ2 is CJ2.1, and its main contacts is CJ2.2, and its normally-closed contact has two, is respectively normally-closed contact CJ2.3, CJ2.4;
The coil of time relay sj 1 is SJ1.1, and its timing closing contact is SJ1.2;
The coil of time relay sj 2 is SJ2.1, and its timing closing contact is SJ2.2;
The main circuit structure of motor D 1 is: inlet wire termination the first three-phase alternating-current supply of circuit breaker DZ1 links to each other with the power end of motor D1 behind the main contacts CJ1.2 of the leading-out terminal serial connection A.C. contactor CJ1 of described circuit breaker DZ1;
Inlet wire termination the second three-phase alternating-current supply of circuit breaker DZ2 links to each other with the power end of motor D1 behind the main contacts CJ2.2 of the leading-out terminal serial connection A.C. contactor CJ2 of described circuit breaker DZ2;
The control circuit structure of motor D 1 is: the end of fuse RT1 links to each other with the control circuit positive source, the other end of described fuse RT1 and connect the end of timing closing contact SJ2.2 of an end, time relay sj 2 of the timing closing contact SJ1.2 of time relay sj 1 and the end of the normally-closed contact CJ1.4 of A.C. contactor CJ1 after link to each other with the end of the normally-closed contact CJ2.4 of A.C. contactor CJ2;
The other end of the timing closing contact SJ1.2 of described time relay sj 1 links to each other with the control circuit power cathode after being connected in series successively coil CJ1.1 and the fuse RT2 of normally-closed contact CJ2.3, A.C. contactor CJ1 of A.C. contactor CJ2;
The other end of the timing closing contact SJ2.2 of described time relay sj 2 links to each other with the coil CJ1.1 of A.C. contactor CJ1 and the line between the fuse RT2 after being connected in series successively the coil CJ2.1 of the normally-closed contact CJ1.3 of A.C. contactor CJ1 and A.C. contactor CJ2;
Link to each other with the coil CJ1.1 of A.C. contactor CJ1 and the line between the fuse RT2 behind the coil SJ2.1 of the other end serial connection time relay sj 2 of the normally-closed contact CJ1.4 of described A.C. contactor CJ1;
Link to each other with the coil CJ1.1 of A.C. contactor CJ1 and the line between the fuse RT2 behind the coil SJ1.1 of the other end serial connection time relay sj 1 of the normally-closed contact CJ2.4 of described A.C. contactor CJ2.
The present invention relies on the time relay to realize time-delay switching function, the user can determine the time of switching according to specific circumstances, avoided the impact of the interference signals such as " rolling electricity " in the colliery on motor power, prevent the generation of misoperation, the safety of assurance personnel and equipment guarantees that the safety of coal production is carried out.
The above has done detailed description to embodiments of the invention by reference to the accompanying drawings, but the present invention is not limited to above-described embodiment, in the ken that those of ordinary skills possess, can also make various variations under the prerequisite that does not break away from aim of the present invention.
Claims (1)
1. duplicate supply time-delay automatic switchover start-up circuit is characterized in that: comprising: circuit breaker, A.C. contactor, fuse and the time relay, wherein:
The coil of A.C. contactor CJ1 is CJ1.1, and its main contacts is CJ1.2, and its normally-closed contact has two, is respectively normally-closed contact CJ1.3, CJ1.4;
The coil of A.C. contactor CJ2 is CJ2.1, and its main contacts is CJ2.2, and its normally-closed contact has two, is respectively normally-closed contact CJ2.3, CJ2.4;
The coil of time relay sj 1 is SJ1.1, and its timing closing contact is SJ1.2;
The coil of time relay sj 2 is SJ2.1, and its timing closing contact is SJ2.2;
The main circuit structure of motor D 1 is: inlet wire termination the first three-phase alternating-current supply of circuit breaker DZ1 links to each other with the power end of motor D1 behind the main contacts CJ1.2 of the leading-out terminal serial connection A.C. contactor CJ1 of described circuit breaker DZ1;
Inlet wire termination the second three-phase alternating-current supply of circuit breaker DZ2 links to each other with the power end of motor D1 behind the main contacts CJ2.2 of the leading-out terminal serial connection A.C. contactor CJ2 of described circuit breaker DZ2;
The control circuit structure of motor D 1 is: the end of fuse RT1 links to each other with the control circuit positive source, the other end of described fuse RT1 and connect the end of timing closing contact SJ2.2 of an end, time relay sj 2 of the timing closing contact SJ1.2 of time relay sj 1 and the end of the normally-closed contact CJ1.4 of A.C. contactor CJ1 after link to each other with the end of the normally-closed contact CJ2.4 of A.C. contactor CJ2;
The other end of the timing closing contact SJ1.2 of described time relay sj 1 links to each other with the control circuit power cathode after being connected in series successively coil CJ1.1 and the fuse RT2 of normally-closed contact CJ2.3, A.C. contactor CJ1 of A.C. contactor CJ2;
The other end of the timing closing contact SJ2.2 of described time relay sj 2 links to each other with the coil CJ1.1 of A.C. contactor CJ1 and the line between the fuse RT2 after being connected in series successively the coil CJ2.1 of the normally-closed contact CJ1.3 of A.C. contactor CJ1 and A.C. contactor CJ2;
Link to each other with the coil CJ1.1 of A.C. contactor CJ1 and the line between the fuse RT2 behind the coil SJ2.1 of the other end serial connection time relay sj 2 of the normally-closed contact CJ1.4 of described A.C. contactor CJ1;
Link to each other with the coil CJ1.1 of A.C. contactor CJ1 and the line between the fuse RT2 behind the coil SJ1.1 of the other end serial connection time relay sj 1 of the normally-closed contact CJ2.4 of described A.C. contactor CJ2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102671222A CN103312028A (en) | 2013-06-29 | 2013-06-29 | Delayed automatic switching starting circuit for dual power supplies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102671222A CN103312028A (en) | 2013-06-29 | 2013-06-29 | Delayed automatic switching starting circuit for dual power supplies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103312028A true CN103312028A (en) | 2013-09-18 |
Family
ID=49136933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102671222A Pending CN103312028A (en) | 2013-06-29 | 2013-06-29 | Delayed automatic switching starting circuit for dual power supplies |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103312028A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107733323A (en) * | 2017-11-18 | 2018-02-23 | 襄垣县树元电器有限公司 | Motor dual-delay automatic switchover start-up circuit |
| CN110112822A (en) * | 2019-05-21 | 2019-08-09 | 王稳忠 | Uninterrupted power supply intelligent apparatus is mutually converted between a kind of three-phase dual power supply and phase voltage |
| CN110544980A (en) * | 2019-10-14 | 2019-12-06 | 黄向梅 | Fully automatic uninterrupted power supply dual power supply system |
| CN112952739A (en) * | 2021-02-05 | 2021-06-11 | 华能（天津）煤气化发电有限公司 | Configuration method for preventing low voltage ride through of power plant auxiliary power system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201656550U (en) * | 2010-03-12 | 2010-11-24 | 安徽昊源化工集团有限公司 | Dual power supply automatic switching device |
| CN102684158A (en) * | 2012-05-31 | 2012-09-19 | 襄垣县树元电器有限公司 | Overheat delay protection device for motor |
| US20130127248A1 (en) * | 2011-11-23 | 2013-05-23 | Lite-On Technology Corp. | Alternating current (ac) to direct current (dc) converter device |
| CN203434735U (en) * | 2013-06-29 | 2014-02-12 | 襄垣县树元电器有限公司 | Dual power supply delay automatic switch starting circuit |
-
2013
- 2013-06-29 CN CN2013102671222A patent/CN103312028A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201656550U (en) * | 2010-03-12 | 2010-11-24 | 安徽昊源化工集团有限公司 | Dual power supply automatic switching device |
| US20130127248A1 (en) * | 2011-11-23 | 2013-05-23 | Lite-On Technology Corp. | Alternating current (ac) to direct current (dc) converter device |
| CN102684158A (en) * | 2012-05-31 | 2012-09-19 | 襄垣县树元电器有限公司 | Overheat delay protection device for motor |
| CN203434735U (en) * | 2013-06-29 | 2014-02-12 | 襄垣县树元电器有限公司 | Dual power supply delay automatic switch starting circuit |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107733323A (en) * | 2017-11-18 | 2018-02-23 | 襄垣县树元电器有限公司 | Motor dual-delay automatic switchover start-up circuit |
| CN110112822A (en) * | 2019-05-21 | 2019-08-09 | 王稳忠 | Uninterrupted power supply intelligent apparatus is mutually converted between a kind of three-phase dual power supply and phase voltage |
| CN110112822B (en) * | 2019-05-21 | 2023-04-28 | 王稳忠 | Intelligent device for uninterrupted power supply by mutual conversion between three-phase dual power supply and phase voltage |
| CN110544980A (en) * | 2019-10-14 | 2019-12-06 | 黄向梅 | Fully automatic uninterrupted power supply dual power supply system |
| CN112952739A (en) * | 2021-02-05 | 2021-06-11 | 华能（天津）煤气化发电有限公司 | Configuration method for preventing low voltage ride through of power plant auxiliary power system |
| CN112952739B (en) * | 2021-02-05 | 2022-11-11 | 华能（天津）煤气化发电有限公司 | Configuration method for preventing low voltage ride through of power plant auxiliary power system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202374037U (en) | Double-power on-line automatic switching device | |
| CN103312028A (en) | Delayed automatic switching starting circuit for dual power supplies | |
| CN103311889A (en) | Manual switching protection circuit for dual power supplies | |
| CN205246820U (en) | Electric locomotive high voltage insulation detection device with mechanical and electric duplicate protection | |
| CN203434735U (en) | Dual power supply delay automatic switch starting circuit | |
| CN109167427B (en) | Power supply system | |
| CN204696794U (en) | A kind of twin-power switch cabinet | |
| CN103760764A (en) | Master-slave controller switching circuit | |
| CN104079060B (en) | Three-way power source switchover circuit and method | |
| CN201717670U (en) | Dual-power-supply switching device with overvoltage protection | |
| CN104176073A (en) | DC110V reconnection control circuit | |
| CN209217700U (en) | A kind of low-voltage motor protection device | |
| CN104092281B (en) | A kind of exchange dual power supply switching method | |
| CN203632351U (en) | Double-power-source switching device | |
| CN208257496U (en) | Dual-power automatic switching formula heating tape current supply circuit | |
| CN202737437U (en) | Phase failure protection circuit used for three-phase low pressure alternating current power source | |
| CN104518566A (en) | Automatic generator set and grid power supply switching program control device | |
| CN203434599U (en) | Three-phase power supply open-phase protective device | |
| CN202455043U (en) | Three-phase motor tail-end phase failure protective device | |
| CN203504132U (en) | Overcurrent protection device for mining mobile transformer station of flame-proof type | |
| CN207732501U (en) | A kind of contactor type double-power supply switching device | |
| CN111244936A (en) | Dual-power switching box | |
| CN203377582U (en) | Overvoltage breaking zero protection device | |
| CN203423480U (en) | Control device capable of preventing motor phase loss caused by instability of power grid | |
| CN104678759A (en) | Master-slave controller circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130918 |