CN101807776A - Electronic switch operation anti-jumping circuit - Google Patents
Electronic switch operation anti-jumping circuit Download PDFInfo
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- CN101807776A CN101807776A CN 201010151284 CN201010151284A CN101807776A CN 101807776 A CN101807776 A CN 101807776A CN 201010151284 CN201010151284 CN 201010151284 CN 201010151284 A CN201010151284 A CN 201010151284A CN 101807776 A CN101807776 A CN 101807776A
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- auxiliary relay
- switching
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- coil
- separating brake
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Abstract
The invention discloses an electronic switch operation anti-jumping circuit. The circuit comprises a control power supply, a switching-on intermediate relay, a switching-off intermediate relay, an auxiliary intermediate relay, switching-on coils, switching-off coils, a switching-on button, and a switching-off button. The switching-off control loop consisting of the switching-off button, the coils of the switching-off intermediate relay and the switching-off coils, and a switching-on control loop consisting of the switching-on button, a set of normally closed contacts of the auxiliary intermediate relay, the coils of the switching-on intermediate relay and the switching-on coils are successively connected in series between the positive and negative electrodes of the control power supply; another electric node of the switching-on button is HA, a set of normally open contacts of the switching-off intermediate relay and the coils of the auxiliary intermediate relay are successively connected in series between the HA and the negative electrode of the control power supply, and the two ends of the normally open contacts of the switching-off intermediate relay are in parallel connection with the normally open contacts of the auxiliary intermediate relay; and two ends of the coils of the switching-on intermediate relay and the switching-off intermediate relay are respectively in parallel connection with clamp diode groups.
Description
Technical field
The present invention relates to the secondary control loop of high-tension switch cabinet, particularly a kind of electronic switch operation anti-jumping circuit.
Background technology
Anti-jump function in the high-tension switch cabinet control loop is meant carries out separating brake when closing circuit breaks down, the combined floodgate contact of control switch or automatics is (operating personnel's release handle not for example owing to fail in time to return, the combined floodgate contact adhesion of automatics) causes again closing a floodgate, and this moment is because the circuit breaker phenomenon of on/off switch repeatedly will appear in also not eliminating of short circuit accident.This phenomenon not only causes easily or the expansion accident, also can cause device damage or personal injury.
Traditional electric trip-preventing jump the loop one adopt current start, the dual coil electromagnetic type relay mode that voltage keeps.Current coil is serially connected with sub-gate circuit as actuating coil, and potential winding is connected to closing circuit as hold-in winding.When separating brake, current coil starts through sub-gate circuit, if closing circuit has fault, potential winding starts and passes through its normal opened contact self-sustaining, its normally closed contact disconnects closing circuit at once, guarantees that circuit breaker can not close a floodgate in the separating brake process at once, plays anti-function of jumping.
Because switch cubicle manufacturer is a lot; its arc quenching principle, operating mechanism and control loop have nothing in common with each other; carrying out on/off switch operates needed coil working electric current and has nothing in common with each other; the internal resistance that is coil has nothing in common with each other; make the required starting current of current coil work that is serially connected with anti-trip relay wherein differ greatly; different switch cubicles need mate the anti-trip relay of different size; and this anti-trip relay volume that works in high voltage, big electric current is very big, is not suitable for the anti-jump function design as microcomputer protecting device inside.Simultaneously traditional anti-jump loop design need be used different relays respectively at the design of ac circuit, DC loop, and versatility is bad.
Summary of the invention
In order to realize the miniaturization and the versatility of anti-jump electric loop, the object of the present invention is to provide a kind of electronic switch operation anti-jumping circuit, this circuit can not only be realized the anti-jump function of switch cubicle electric control loop, can also adapt to different current supply circuit (ac circuit, DC loop), mate the needed starting current of closing coil, switching winding of dissimilar switch cubicles automatically; And the anti-jump functional module that adopts this circuit design to have a volume little, low in energy consumption, adapt to wide characteristics, can directly it be designed in the microcomputer protecting device.
In order to achieve the above object, the present invention is achieved by the following technical solutions.
A kind of electronic switch operation anti-jumping circuit comprises control power supply, combined floodgate auxiliary relay, separating brake auxiliary relay, auxiliary auxiliary relay, closing coil, switching winding, switch knob, opening button; Be in series with successively between the both positive and negative polarity of described control power supply by the coil of opening button, separating brake auxiliary relay, the separating brake control loop that switching winding is formed, and by switch knob, one group of normally-closed contact of auxiliary auxiliary relay, the coil of combined floodgate auxiliary relay, the combined floodgate control loop that closing coil is formed; Another electrical nodes of described switch knob is HA, be connected in series the one group of normally opened contact of separating brake auxiliary relay and the coil of auxiliary auxiliary relay successively between the negative pole of HA and control power supply, the two ends of this group normally opened contact of separating brake auxiliary relay are parallel with one group of normally opened contact of auxiliary auxiliary relay; It is characterized in that the two ends of the coil of described combined floodgate auxiliary relay and separating brake auxiliary relay are parallel with clamper diode group respectively.
Further characteristics of the present invention are that the two ends of the coil of described combined floodgate auxiliary relay, separating brake auxiliary relay, auxiliary auxiliary relay are respectively arranged with full bridge rectifier, and full bridge rectifier is connected in the control loop of each coil correspondence.
The present invention is parallel with clamper diode group respectively at the two ends of the coil of combined floodgate auxiliary relay and separating brake auxiliary relay, because internal resistance is very little during diode current flow, can ignore substantially, can not exert an influence for other elements in the control loop.No matter therefore close, the internal resistance of switching winding how, close, the separating brake control loop can provide its work needed starting current, and self adaptation satisfies the coupling requirement; Solved in traditional trip-preventing circuit inconsistent because of the relay coil internal resistance, the problem that when it being serially connected with the control loop of switch cubicle, is difficult to cooperate.
Simultaneously, the present invention is respectively arranged with full bridge rectifier at the two ends of the coil of combined floodgate auxiliary relay, separating brake auxiliary relay, auxiliary auxiliary relay, full bridge rectifier is connected in the control loop of each coil correspondence, can be operated in adaptively have that difference is closed, in the switch cubicle of sub-switching operation electric current, and interchange, direct current power supply loop are general.
In addition, the control switch that switch knob, opening button are used respectively in the microcomputer protecting device replaces, and can be adapted in the Control System of Microcomputer very easily.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further details.
Fig. 1 is the electrical wiring schematic diagram of switch operation anti-jumping circuit.
Fig. 2 is the circuit theory diagrams of a specific embodiment of the present invention.
Embodiment
With reference to Fig. 1, in the switch operation anti-jumping circuit ,+KM ,-KM be respectively control power supply both positive and negative polarity, HA, HQ node are the access point of combined floodgate auxiliary relay HBJ, TA, TQ node are the access of separating brake auxiliary relay TBJ.The separating brake control loop by be connected on successively control power supply both positive and negative polarity+KM ,-KM between, form by opening button TA, TA node, the coil of separating brake auxiliary relay TBJ, TQ node, switching winding TQ.The combined floodgate control loop is made up of one group of normally-closed contact, the coil of combined floodgate auxiliary relay HBJ, the closing coil HQ of switch knob HA, HA node, auxiliary auxiliary relay TBJV.Be connected in series one group of normally opened contact of separating brake auxiliary relay TBJ, coil and the build-out resistor R of auxiliary auxiliary relay TBJV between the negative pole-KM of node HA and control power supply successively, the two ends of this group normally opened contact of separating brake auxiliary relay TBJ are parallel with one group of normally opened contact of auxiliary auxiliary relay TBJV.
In addition, in order to adapt to system controlled by computer, be provided with control switch HJ between+KM and HA node, the two ends of control switch HJ are parallel with a group of combined floodgate auxiliary relay HBJ and often open node, can replace switch knob; In like manner, be provided with control switch TJ between+KM and HA node, the two ends of control switch TJ are parallel with a group of combined floodgate auxiliary relay TBJ and often open node, can replace opening button.
With reference to Fig. 2, compare with the electrical wiring schematic diagram among Fig. 1, the difference of the circuit between TA, the TQ node is, the supply power voltage of combined floodgate auxiliary relay is 5V, the power supply of its coil provides by the full bridge rectifier that D19～D22 forms, and the two ends of coil be provided with D1～D7 totally 7 diodes as connection with clamp diode groups; Equally, the difference of the circuit between HA, the HQ node is, the supply power voltage of separating brake auxiliary relay is 5V, and the power supply of its coil provides by the full bridge rectifier that D15～D18 forms, and the two ends of coil be provided with D8～D14 totally 7 diodes as connection with clamp diode groups; The power supply of the coil of auxiliary auxiliary relay provides by the full bridge rectifier that D23～D26 forms, and the two ends of this coil are provided with filter capacitor C1.Above-mentioned full bridge rectifier is connected on respectively in the control loop of each coil correspondence.
When sub-gate signal triggered, TA signal (coming from Microcomputer Protection outlet or opening button) was connected control power supply+KM, and electric current flows through the diode group that D1～D7 forms through the bridge rectifier that D19～D22 forms, and the switching winding TQ that flows through again is up to power supply-KM.During diode group forward conduction, because every diode has the conduction pipe pressure drop of 0.7V, 7 diodes will produce the tube voltage drop of 4.9V, and this voltage can drive the separating brake auxiliary relay TBJ that operating voltage is DC5V.After separating brake auxiliary relay TBJ starts, its two groups of normally opened contact adhesives, one group of self-holding circuit that forms this relay wherein, even TA blackout or shake, separating brake auxiliary relay TBJ still can reliably working; Another group links to each other the HA signal with-KM end, control loop breaks down (as the switch knob adhesion) if close a floodgate this moment, and the control loop that causes closing a floodgate has voltage (HA be connected to+KM hold), and auxiliary relay TBJV will start.At this moment, one group of normally opened contact closure of auxiliary relay TBJV forms the self-holding circuit of this relay, and its another group normally-closed contact is opened, and the combined floodgate control loop is disconnected, and prevents the generation of feed motion, plays anti-jump function.
When if separating brake auxiliary relay TBJ starts, the combined floodgate control loop is normal, auxiliary auxiliary relay TBJV will can not work, and this moment, the separating brake control loop can provide enough big branch brake current for the switching winding TQ of circuit breaker, make circuit breaker finish the separating brake action reliably.After the separating brake action is finished, the auxiliary contact of circuit breaker will disconnect the power supply of separating brake control loop, and separating brake auxiliary relay TBJ is discharged.This design has also been avoided adjusting improper (displacement is slow excessively) because of the circuit breaker auxiliary contact of separating brake control loop, causes the phenomenon of protecting the elder generation's current interruption of outlet contact and burning.
In the sub-switching operation process, the startup of auxiliary auxiliary relay TBJV be rely on be connected on+KM and-dividing potential drop of the coil internal resistance of resistance R 1, R2 and auxiliary auxiliary relay TBJV between the KM realizes, diode D23～D26 is a bridge rectifier, if the control power supply is AC/DC220V, then R1, R2 are respectively 11k Ω, auxiliary auxiliary relay TBJV selects the DC24V midget relay, plays the level and smooth effect of electric current with the capacitor C 1 of its coils from parallel connection of coils.
When carrying out closing operation; HA signal (coming from Microcomputer Protection outlet or switch knob) is connected control power supply+KM; this moment, auxiliary auxiliary relay TBJV did not start; its normally-closed contact is connected the bridge rectifier that D15～D18 forms; electric current flows through the diode group that D8～D14 forms; flow through the again coil of combined floodgate auxiliary relay HBJ is to the closing coil HQ of circuit breaker, up to external power source-KM.
The same with sub-gate circuit, during diode group forward conduction, the tube voltage drop of the 4.9V of generation will drive the combined floodgate auxiliary relay HBJ of DC5V.After combined floodgate auxiliary relay HBJ started, its normally opened contact adhesive formed self-holding circuit, even HA blackout or shake, combined floodgate auxiliary relay HBJ still can reliably working.This moment, closing circuit can provide enough big switching current for closing coil, made circuit breaker finish feed motion reliably, and after feed motion is finished, the auxiliary contact of circuit breaker will disconnect the power supply of closing circuit, and the HBJ relay is discharged.
The working method of separating brake auxiliary relay TBJ and combined floodgate auxiliary relay HBJ all belongs to current start type relay, this relay is serially connected with in the switch cubicle control loop, its internal resistance is very little, only be the conducting internal resistance of diode array this moment, therefore they can be complementary with dissimilar switch cubicle control loops, and need not to adjust any parameter, have adaptive characteristics.Close simultaneously, the starting current of switching winding is to flow through from the contact of these two relays, but not coil, this makes this relay can select midget relay for use, under the situation by big capacity electric current, dwindles its volume greatly.Based on same reason, auxiliary auxiliary relay TBJV also selects miniature voltage relay for use.In addition, in circuit, design three groups of diode full bridge rectifiers, made this circuit can the AC/DC loop general.
Claims (2)
1. an electronic switch operation anti-jumping circuit comprises control power supply, combined floodgate auxiliary relay, separating brake auxiliary relay, auxiliary auxiliary relay, closing coil, switching winding, switch knob, opening button; Be in series with successively between the both positive and negative polarity of described control power supply by the coil of opening button, separating brake auxiliary relay, the separating brake control loop that switching winding is formed, and by switch knob, one group of normally-closed contact of auxiliary auxiliary relay, the coil of combined floodgate auxiliary relay, the combined floodgate control loop that closing coil is formed; Another electrical nodes of described switch knob is HA, be connected in series the one group of normally opened contact of separating brake auxiliary relay and the coil of auxiliary auxiliary relay successively between the negative pole of HA and control power supply, the two ends of this group normally opened contact of separating brake auxiliary relay are parallel with one group of normally opened contact of auxiliary auxiliary relay; It is characterized in that the two ends of the coil of described combined floodgate auxiliary relay and separating brake auxiliary relay are parallel with clamper diode group respectively.
2. a kind of electronic switch operation anti-jumping circuit according to claim 1, it is characterized in that, the two ends of the coil of described combined floodgate auxiliary relay, separating brake auxiliary relay, auxiliary auxiliary relay are respectively arranged with full bridge rectifier, and full bridge rectifier is connected in the control loop of each coil correspondence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010151284 CN101807776A (en) | 2010-04-20 | 2010-04-20 | Electronic switch operation anti-jumping circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010151284 CN101807776A (en) | 2010-04-20 | 2010-04-20 | Electronic switch operation anti-jumping circuit |
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| CN101807776A true CN101807776A (en) | 2010-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010151284 Pending CN101807776A (en) | 2010-04-20 | 2010-04-20 | Electronic switch operation anti-jumping circuit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108988286A (en) * | 2018-06-26 | 2018-12-11 | 河南森源电气股份有限公司 | A kind of anti-jump one-way conduction control circuit of low pressure |
| CN111816505A (en) * | 2020-06-30 | 2020-10-23 | 岭东核电有限公司 | Control circuit of quick-closing electromagnetic valve of nuclear power plant and main steam system |
| CN109167264B (en) * | 2018-09-20 | 2024-03-08 | 湖北长江电气有限公司 | Jump preventing device for circuit breaker in high-voltage switch cabinet |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4337665C1 (en) * | 1993-11-04 | 1994-10-20 | Siemens Ag | Contactor safety combination |
| CN2269011Y (en) * | 1996-08-02 | 1997-11-26 | 郭伟 | Circuit breaker repetitious tripping device |
| CN201402961Y (en) * | 2009-04-08 | 2010-02-10 | 北京德威特电力***自动化有限公司 | Self-adaptive anti-trip loop design circuit |
| CN201417688Y (en) * | 2009-04-30 | 2010-03-03 | 厦门兴厦控电气有限公司 | A fuse contactor control device |
| CN201667492U (en) * | 2010-04-20 | 2010-12-08 | 咸阳供电局 | Anti-pumping circuit for electronic switch operation |
-
2010
- 2010-04-20 CN CN 201010151284 patent/CN101807776A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4337665C1 (en) * | 1993-11-04 | 1994-10-20 | Siemens Ag | Contactor safety combination |
| CN2269011Y (en) * | 1996-08-02 | 1997-11-26 | 郭伟 | Circuit breaker repetitious tripping device |
| CN201402961Y (en) * | 2009-04-08 | 2010-02-10 | 北京德威特电力***自动化有限公司 | Self-adaptive anti-trip loop design circuit |
| CN201417688Y (en) * | 2009-04-30 | 2010-03-03 | 厦门兴厦控电气有限公司 | A fuse contactor control device |
| CN201667492U (en) * | 2010-04-20 | 2010-12-08 | 咸阳供电局 | Anti-pumping circuit for electronic switch operation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108988286A (en) * | 2018-06-26 | 2018-12-11 | 河南森源电气股份有限公司 | A kind of anti-jump one-way conduction control circuit of low pressure |
| CN109167264B (en) * | 2018-09-20 | 2024-03-08 | 湖北长江电气有限公司 | Jump preventing device for circuit breaker in high-voltage switch cabinet |
| CN111816505A (en) * | 2020-06-30 | 2020-10-23 | 岭东核电有限公司 | Control circuit of quick-closing electromagnetic valve of nuclear power plant and main steam system |
| CN111816505B (en) * | 2020-06-30 | 2022-09-23 | 岭东核电有限公司 | Control circuit of quick-closing electromagnetic valve of nuclear power plant and main steam system |
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Application publication date: 20100818 |