CN103376758B - A kind of latching relay that adopts realizes two main disconnected automatic alternate run circuit - Google Patents
A kind of latching relay that adopts realizes two main disconnected automatic alternate run circuit Download PDFInfo
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- CN103376758B CN103376758B CN201310301529.2A CN201310301529A CN103376758B CN 103376758 B CN103376758 B CN 103376758B CN 201310301529 A CN201310301529 A CN 201310301529A CN 103376758 B CN103376758 B CN 103376758B
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- circuit breaker
- main circuit
- switch
- latching relay
- separating brake
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Abstract
The invention discloses a kind of latching relay that adopts and realize two main disconnected automatic alternate run circuit, comprise main circuit breaker combined floodgate, separating brake command switch, state switch transition switch, latching relay and first, second main circuit breaker, described main circuit breaker closes a floodgate, separating brake command switch is connected with state switch transition switch, and state switch transition switch is connected with first, second main circuit breaker by latching relay.The present invention increases a special self-locking relay and a switch in the control circuit of two isolating switchs, when two isolating switchs are all normal, latching relay, according to the isolating switch splitting or integrating lock instruction of control circuit input end, alternately sends the instruction of splitting or integrating lock to the first main circuit breaker and the second main circuit breaker automatically; When one of them main circuit breaker fault, control circuit only sends the instruction of splitting or integrating lock to another main circuit breaker, achieves two main circuit breaker alternate runs, mutually redundant function.
Description
Technical field
The invention belongs to circuit engineering field, be specifically related to a kind of latching relay that adopts and realize two main disconnected automatic alternate run circuit.
Background technology
Main circuit breaker of railway engine carries that high voltage between contact net and locomotive electric apparatus is connected, breaking function, and can main circuit breaker of railway engine normally work and normally to run directly decide locomotive.Once main circuit breaker fault, by directly causing the broken or machine of locomotive machine therefore occurring, directly affects the safe operation of locomotive.At present, the main circuit breaker due to former locomotive design all adopts pressurized air to carry out the vacuum circuit breaker driven, and car body has only been reserved the installation window of a main circuit breaker.
Summary of the invention
The object of the invention is in the above-mentioned the problems of the prior art of solution, a kind of latching relay that adopts is provided to realize two main disconnected automatic alternate run circuit, this circuit can not change under the prerequisite that existing main circuit breaker of railway engine mounting base size and driver operation be accustomed to, realize two main circuit breaker alternate runs, mutually redundant function, to improve whole locomotive electric cad system system reliability.
For achieving the above object, the technical solution used in the present invention is: comprise main circuit breaker combined floodgate, separating brake command switch, state switch transition switch, latching relay and first, second main circuit breaker, described main circuit breaker closes a floodgate, separating brake command switch is connected with state switch transition switch, and state switch transition switch is connected with first, second main circuit breaker by latching relay.
Coil, the first contact and the second contact is provided with in above-mentioned latching relay; First contact is also connected with one end of the first main circuit breaker, and the second contact is also connected with one end of the second main circuit breaker; Close a floodgate with main circuit breaker in one end of coil, separating brake command switch and state switch transition switch are connected, and the other end of coil is connected on the other end of the first main circuit breaker and the second main circuit breaker; State switch transition switch-linear hybrid has " I " gear, " II " gear and " 0 " gear; When state switch transition switch is positioned at " I " gear, main circuit breaker closes a floodgate, separating brake command switch is connected with the first main circuit breaker by the first contact; When state switch transition switch is positioned at " II " gear, main circuit breaker closes a floodgate, separating brake command switch is connected with the second main circuit breaker by the second contact; When state switch transition switch is positioned at " 0 " gear, the combined floodgate that main circuit breaker closes a floodgate, separating brake command switch sends according to main circuit breaker, separating brake instruction, be alternately connected with the second main circuit breaker with the first main circuit breaker with the second contact by the first contact.
Above-mentioned first contact is normally closed contact, and the second contact is normal opened contact.
Compared with prior art, the present invention has following beneficial effect:
The present invention increases a special self-locking relay and a switch in the control circuit of two isolating switchs, when two isolating switchs are all normal, latching relay, according to the isolating switch splitting or integrating lock instruction of control circuit input end, alternately sends the instruction of splitting or integrating lock to the first main circuit breaker and the second main circuit breaker automatically; When one of them main circuit breaker fault, control circuit only sends the instruction of splitting or integrating lock to another main circuit breaker, achieves two main circuit breaker alternate runs, mutually redundant function, improves the reliability of whole locomotive electric cad system system simultaneously.
Accompanying drawing explanation
Fig. 1 is circuit connecting relation schematic diagram of the present invention.
Wherein, 1 is normally closed contact; 2 is normal opened contact; 3 is coil; SB is that main circuit breaker closes a floodgate, separating brake command switch; QS is state switch transition switch; 1QF is the first main circuit breaker; 2QF is the second main circuit breaker.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
See Fig. 1, the present invention includes main circuit breaker combined floodgate, separating brake command switch SB, state switch transition switch QS, latching relay and first, second main circuit breaker 1QF, 2QF, described main circuit breaker closes a floodgate, separating brake command switch SB is connected with state switch transition switch QS, and state switch transition switch QS is connected with first, second main circuit breaker 1QF, 2QF by latching relay.Be provided with coil 3, first contact 1 in latching relay and the second contact 2, first contact 1 is normally closed contact, the second contact 2 is normal opened contact; Close a floodgate with main circuit breaker in one end of coil 3, separating brake command switch SB and state switch transition switch QS is connected, and the other end of coil 3 is connected on the other end of the first main circuit breaker 1QF and the second main circuit breaker 2QF; State switch transition switch QS is provided with " I " gear, " II " gear and " 0 " gear; When state switch transition switch QS is positioned at " I " gear, main circuit breaker closes a floodgate, separating brake command switch SB is connected with the first main circuit breaker 1QF by the first contact 1; When state switch transition switch QS is positioned at " II " gear, main circuit breaker closes a floodgate, separating brake command switch SB is connected with the second main circuit breaker 2QF by the second contact 2; When state switch transition switch QS is positioned at " 0 " gear, the combined floodgate that main circuit breaker closes a floodgate, separating brake command switch SB sends according to main circuit breaker, separating brake instruction, be alternately connected with the second main circuit breaker 2QF with the first main circuit breaker 1QF with the second contact 2 by the first contact 1.
Principle of work of the present invention:
The present invention increases a latching relay and a state switch transition switch in the control circuit of main circuit breaker.After first time sends the instruction of isolating switch splitting or integrating lock, the normally closed contact of latching relay makes the splitting or integrating brake cable circle of the first main circuit breaker obtain electric, thus the first main circuit breaker is closed a floodgate or separating brake.Meanwhile, the coil of latching relay due to electromagnetic force, makes latching relay adhesive and self-locking after the instruction of receiving isolating switch splitting or integrating lock, and the normal opened contact of latching relay closes, and normally closed contact disconnects.After second time sends the splitting or integrating lock instruction of isolating switch, the normal opened contact (now closed) of latching relay makes the splitting or integrating brake cable circle of the second main circuit breaker obtain electric, thus the second main circuit breaker is closed a floodgate or separating brake.While second time sends the splitting or integrating lock instruction of isolating switch, the armature of latching relay discharges back original position, and the normal opened contact of latching relay disconnects, normally closed contact closes.After third time sends the instruction of isolating switch splitting or integrating lock, when the action of latching relay and the first main circuit breaker is with first time isolating switch splitting or integrating lock instruction; After sending the instruction of isolating switch splitting or integrating lock when the 4th time, when the action of latching relay and the second main circuit breaker is with second time isolating switch splitting or integrating lock instruction; After this latching relay, first, second main circuit breaker repeat action before this.When control circuit sends main disconnected " conjunction ", " dividing " instruction, latching relay alternately sends the instruction of splitting or integrating lock to two main circuit breakers automatically, thus realizes two " 1+1 " two masters and to break automatic alternate run, mutually redundant object.
The course of work of the present invention:
The present invention increases a special latching relay and a state switch transition switch in the control circuit of two isolating switchs, when two main circuit breakers are all normal, state switch transition switch reset position, latching relay is according to the isolating switch splitting or integrating lock instruction of control circuit input end, automatically alternately the instruction of splitting or integrating lock is sent to the first main circuit breaker 1QF and the second main circuit breaker 2QF, latching relay carries out odd, even counting to the action frequency of SB automatically, when being counted as odd number, latching relay sends the instruction of splitting or integrating lock to the first main circuit breaker 1QF; When being counted as even number, latching relay sends the instruction of splitting or integrating lock to the second main circuit breaker 2QF; When the first main circuit breaker 1QF fault, state switch transition switch is put " II " position, control circuit only sends the instruction of splitting or integrating lock to the second main circuit breaker 2QF; When the second main circuit breaker 2QF fault, switch is put " I " position, control circuit only sends the instruction of splitting or integrating lock to the first main circuit breaker 1QF.
Claims (1)
1. an employing latching relay realizes two main disconnected automatic alternate run circuit, it is characterized in that: comprise main circuit breaker combined floodgate, separating brake command switch (SB), state switch transition switch (QS), latching relay and first, second main circuit breaker (1QF, 2QF), described main circuit breaker closes a floodgate, separating brake command switch (SB) is connected with state switch transition switch (QS), and state switch transition switch (QS) is connected with first, second main circuit breaker (1QF, 2QF) by latching relay;
Coil (3), normally closed contact (1) and normal opened contact (2) is provided with in described latching relay; Normally closed contact (1) is also connected with one end of the first main circuit breaker (1QF), and normal opened contact (2) is also connected with one end of the second main circuit breaker (2QF); Close a floodgate with main circuit breaker in one end of coil (3), separating brake command switch (SB) and state switch transition switch (QS) are connected, and the other end of coil (3) is connected on the other end of the first main circuit breaker (1QF) and the second main circuit breaker (2QF); State switch transition switch (QS) is provided with " I " gear, " II " gear and " 0 " gear; When state switch transition switch (QS) is positioned at " I " gear, main circuit breaker closes a floodgate, separating brake command switch (SB) is connected with the first main circuit breaker (1QF) by normally closed contact (1); When state switch transition switch (QS) is positioned at " II " gear, main circuit breaker closes a floodgate, separating brake command switch (SB) is connected with the second main circuit breaker (2QF) by normal opened contact (2); When state switch transition switch (QS) is positioned at " 0 " gear, the combined floodgate that main circuit breaker closes a floodgate, separating brake command switch (SB) sends according to main circuit breaker, separating brake instruction, be alternately connected with the second main circuit breaker (2QF) with the first main circuit breaker (1QF) with normal opened contact (2) by normally closed contact (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310301529.2A CN103376758B (en) | 2013-07-15 | 2013-07-15 | A kind of latching relay that adopts realizes two main disconnected automatic alternate run circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310301529.2A CN103376758B (en) | 2013-07-15 | 2013-07-15 | A kind of latching relay that adopts realizes two main disconnected automatic alternate run circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103376758A CN103376758A (en) | 2013-10-30 |
| CN103376758B true CN103376758B (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310301529.2A Active CN103376758B (en) | 2013-07-15 | 2013-07-15 | A kind of latching relay that adopts realizes two main disconnected automatic alternate run circuit |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101038826A (en) * | 2006-12-22 | 2007-09-19 | 中国南车集团株洲电力机车有限公司 | Control device for vacuum circuit breaker |
| CN201835314U (en) * | 2010-03-11 | 2011-05-18 | 长沙中联重工科技发展股份有限公司 | Power switching control device for engineering truck |
| CN102361352A (en) * | 2011-10-24 | 2012-02-22 | 山东电力工程咨询院有限公司 | Change-over switch integration circuit for circuit breaker of intelligent converting station |
| CN102868334A (en) * | 2012-09-21 | 2013-01-09 | 北京联合大学生物化学工程学院 | Automatic timing alternative positive and reverse rotation dual-interlocking control line for motor |
| CN203366024U (en) * | 2013-07-15 | 2013-12-25 | 福开尔（西安）电气有限公司 | Double main circuit breaker automatic alternating operation circuit realized by adopting latching relay |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012044754A (en) * | 2010-08-17 | 2012-03-01 | Toyo Electric Mfg Co Ltd | Method for checking state of connection between output power source of ac generator and another power source |
-
2013
- 2013-07-15 CN CN201310301529.2A patent/CN103376758B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101038826A (en) * | 2006-12-22 | 2007-09-19 | 中国南车集团株洲电力机车有限公司 | Control device for vacuum circuit breaker |
| CN201835314U (en) * | 2010-03-11 | 2011-05-18 | 长沙中联重工科技发展股份有限公司 | Power switching control device for engineering truck |
| CN102361352A (en) * | 2011-10-24 | 2012-02-22 | 山东电力工程咨询院有限公司 | Change-over switch integration circuit for circuit breaker of intelligent converting station |
| CN102868334A (en) * | 2012-09-21 | 2013-01-09 | 北京联合大学生物化学工程学院 | Automatic timing alternative positive and reverse rotation dual-interlocking control line for motor |
| CN203366024U (en) * | 2013-07-15 | 2013-12-25 | 福开尔（西安）电气有限公司 | Double main circuit breaker automatic alternating operation circuit realized by adopting latching relay |
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| Publication number | Publication date |
|---|---|
| CN103376758A (en) | 2013-10-30 |
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