CN202585293U - Automatically reclosing device of circuit breaker - Google Patents
Automatically reclosing device of circuit breaker Download PDFInfo
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- CN202585293U CN202585293U CN 201220237255 CN201220237255U CN202585293U CN 202585293 U CN202585293 U CN 202585293U CN 201220237255 CN201220237255 CN 201220237255 CN 201220237255 U CN201220237255 U CN 201220237255U CN 202585293 U CN202585293 U CN 202585293U
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- circuit breaker
- controller
- relay
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Abstract
The utility model discloses an automatically reclosing device of a circuit breaker. The automatically reclosing device of the circuit breaker includes a relay having bypass control of the switching of an actuating coil of a circuit breaker. An input terminal of the relay is connected with a controller electrically. An input terminal of the controller is connected with a switching state contact indicating the switching state of the circuit breaker electrically. The input terminal of the controller is also connected with a power supply initiating switch indicating the power supply state of the circuit breaker electrically. A photoelectric coupler is arranged between an output terminal of the controller and the input terminal of the relay. The output terminal of the controller is also connected with an alarm electrically. The input terminal of the controller is electrically connected with a reset switch controlling the alarm to stop alarming. An input terminal of the controller is also connected with a manual contact corresponding to a manual switch of the circuit breaker electrically. The controller realizes locking control of the relay through an input signal of the manual contact. The automatically reclosing device of the circuit breaker is reasonable in structure and can control the circuit breaker to recluse automatically after power is supplying. The power is supplied timely and the operation is safety. The improvement of the working efficiency and the power supply reliability is facilitated.
Description
Technical field
The utility model relates to a kind of circuit breaker automatic recloser.
Background technology
Circuit breaker is can close to close, carry and cut-off the electric current under the normal loop condition, and can close the switching device that closes, in official hour, carries and cut-off the electric current under the unusual loop condition (comprising short circuit condition).Circuit breaker is divided into primary cut-out and low-voltage circuit breaker by its scope of application, and is general with the primary cut-out that is called more than the 3kV.Primary cut-out (or claiming high-voltage switch gear) is the main electric control appliance of power plant, electric substation, has arc quenching characteristic.When system normally moved, it can cut off and connect the zero load and the load current of circuit and various electric equipments; When system broke down, it cooperated with relaying protection, and ability is the disengagement failure electric current rapidly, to prevent expansion accident scope.Therefore, the quality of primary cut-out work directly has influence on the safe operation of electric power system.
Because the circuit breaker operated by rotary motion has a plurality of states contact, therefore in actual use, circuit breaker all is combined with the control corresponding device, gathers circuit breaker related work state, even the action of control circuit breaker.At present, traditional circuit breaker control device behind the system blackout would trip, does not have corresponding automatic switching-in function, needs the electrician to get into scene closing by hand on the spot, and both inconvenient, manual operation is also dangerous, is unfavorable in time sending.
Summary of the invention
The technical problem that the utility model will solve is to provide a kind of rational in infrastructure to above-mentioned deficiency, can control circuit breaker and send the electricity back to overlap automatically, send electricity in time, and controls safe circuit breaker automatic recloser.
For solving the problems of the technologies described above; The design feature of this circuit breaker automatic recloser is: the relay that comprises the actuation coil break-make of Bypass Control circuit breaker; The relay input is electrically connected with controller; The controller input is electrically connected with the on off state contact of reaction circuit breaker switch state, and the input of controller also is electrically connected the electric switch that send that the reaction circuit breaker send electricity condition.
The circuit breaker automatic recloser of this structure is to realize controlling circuit breaker through real-time collection Bypass Control structure to send the electricity back to overlap automatically, send electricity in time, and controls safe.
Gathering in real time the Bypass Control structure mainly comprises the relay and the on off state contact that is electrically connected with the controller input that are electrically connected with controller output end, send electric switch.Wherein, the lead-out terminal of relay and circuit breaker actuation coil are electrically connected, and the control branch road of the sub-control action coil of relay output end is the bypass of the former control branch road of actuation coil, so both are independent of each other when the control action coil electricity.Relay is the execution unit of controller, and breaker closing that controller sends or circuit breaker ON-and OFF-command are by the direct driving execution of relay.Sending electric switch is the critical piece that sends induced signal or detection signal to controller; Send the main effect of electric switch; Be the power supply state that detects circuit breaker power supply end in real time, and send this status signal to controller, think that the control of controller provides foundation.The on off state contact is the state contact that circuit breaker carries, and this on off state contact is consistent with the on off state of circuit breaker.When circuit breaker broke off, the on off state contact was an off-state, and when breaker closing or coincidence, the on off state contact is a closure state.The on off state contact, send the action logic relation of electric switch and relay to be: controller status signal of surface sweeping on off state contact at first when work; When having only the on off state contact to be off-state; Controller just can be gathered the switching signal of sending electric switch again, and according to the switching signal control relay action of giving electric switch; If the on off state contact is a closure state, then controller can not gathered the switching signal of sending electric switch, can not drive relay yet and do any action.In real work, when the power supply of circuit breaker input has a power failure, the circuit breaker automatic trip.At this moment, the on off state contact switches to off-state, and after controller received this status signal, beginning constantly scanned the switching signal of sending electric switch.If the power supply of circuit breaker input is not admitted to, then sending electric switch is off-state, and this moment, controller continued the status signal that electric switch is sent in scanning, did not do any operation.After power supply is admitted to, send electric switch to switch to closure state, prove that power supply sends into.But because circuit breaker does not send the electric work ability automatically, so circuit breaker still is in the tripping operation off-state.Controller receive send that electric switch sends send the signal of telecommunication after, can drive the actuating of relay connecting the power supply of circuit breaker actuation coil, and then circuit breaker is overlapped.Like this, just realized that the incoming call of circuit breaker overlaps function automatically, need not workman's execute-in-place, sent electricity in time, reliably, and ensured workman's personal safety.
As improvement, also be provided with photoelectrical coupler between the output of controller and the input of relay.
Between controller output end and relay input, photoelectrical coupler is set; Can play the effect that control signal photoelectricity is isolated; Can effectively avoid influencing each other between the controller and the relay signal of telecommunication, guarantee the functional reliability of this circuit breaker automatic recloser.
As further improvement, the output of controller also is electrically connected with alarm, and the input of controller is electrically connected with the reset switch that the control alarm stops to report to the police.
When controller according to the on off state contact with send the signal of electric switch, the control relay action is so that after circuit breaker overlaps, controller can continue to scan the status signal of state contact of opening the light.If the on off state contact still is an off-state, explain that then circuit breaker reclosing failure or on off state contact are malfunctioning.Controller can be controlled alarm and sent alarm signal this moment, overhaul with the prompting staff, strong guarantee power supply reliability.When the staff overhauls, through the operation reset switch, can control alarm and finish this warning, operation is very easy.
As improvement, the input of controller also is electrically connected with the hand branch contact corresponding with the hand switch-dividing of circuit breaker, and controller locks control according to the input signal of hand branch contact to relay.
Whether divide the status signal of contact, controller to know through hand has the staff to carry out interruption maintenance through the manual brake separating mode this moment.Like this, controller just can be controlled this circuit breaker automatic recloser and be in the lock state, and just except that the state of each contact of scanning or switch, forbids carrying out any action.Have only when the maintenance end, after manual brake separating was disengaged, controller divided the contacts status signal according to the hand that scans, and just can remove the lock-out state of this circuit breaker automatic recloser, had improved the fail safe of maintenance greatly.
As further improvement, the input of controller also is electrically connected with the electric leakage sense contact and electric leakage starting switch on the earth leakage protective device.
The electric leakage sense contact is the state contact that earth leakage protective carries, can real time reaction the operating state of earth leakage protective device, and this status signal passed to controller.Whether controller can judge accurately whether earth leakage protective device earth leakage protective takes place according to the status signal that scans the electric leakage sense contact that obtains, make circuit breaker produce tripping operation.After leakage tripping took place, controller drove the actuating of relay when deciding so that circuit breaker overlaps through the switching signal of scanning electric leakage starting switch.Like this, both guaranteed personal safety, and ensured again and sent the electric promptness and the reliability of power supply.
In sum, adopt the circuit breaker automatic recloser of this structure, rational in infrastructure, can control circuit breaker and send the electricity back to overlap automatically, send electricity in time, and control safety, help to increase work efficiency and power supply reliability.
Description of drawings
In conjunction with accompanying drawing the utility model is explained further details:
Fig. 1 is the structural representation of the utility model.
Among the figure: 1 is relay, and 2 is the on off state contact, and 3 for sending electric switch, and 4 is photoelectrical coupler, and 5 is alarm, and 6 for hand divides the contact, and 7 is controller, and 8 is actuation coil, and 9 are the electric leakage sense contact, and 10 are the electric leakage starting switch, and 11 is reset switch.
Embodiment
As shown in Figure 1, this circuit breaker automatic recloser mainly comprises controller 7, and controller 7 outputs are electrically connected with relay 1, and controller 7 inputs are electrically connected with on off state contact 2 and send electric switch 3.Wherein, The lead-out terminal of relay 1 and circuit breaker actuation coil 8 are electrically connected; And the control branch road of relay 1 lead-out terminal control action coil 8 is bypasses of the former control branch road of actuation coil 8, and both belong to the parallel connection relation, so both are independent of each other when 8 energisings of control action coil.Relay 1 is the execution unit of controller 7, and breaker closing that controller 7 sends or circuit breaker ON-and OFF-command are by relay 1 direct driving execution.In the present embodiment, the output of controller 7 is electrically connected through the input of photoelectrical coupler 4 and relay 1.Can play the effect that control signal photoelectricity is isolated like this, can effectively avoid influencing each other between the controller 7 and relay 1 signal of telecommunication, guarantee the functional reliability of this circuit breaker automatic recloser.Sending electric switch 3 is the critical pieces that send induced signal or detection signal to controller 7; Send the main effect of electric switch 3; Be the power supply state that detects circuit breaker power supply end in real time, and send this status signal to controller 7, think that the control of controller 7 provides foundation.On off state contact 2 is state contacts that circuit breaker carries, and this on off state contact 2 is consistent with the on off state of circuit breaker.When circuit breaker broke off, on off state contact 2 was an off-state, and when breaker closing or coincidence, on off state contact 2 is a closure state.
On off state contact 2, send the action logic relation of electric switch 3 and relay 1 to be: controller 7 status signal of surface sweeping on off state contact 2 at first when work; When having only on off state contact 2 for off-state; Controller 7 just can be gathered the switching signal of sending electric switch 3 again, and according to the switching signal control relay that gives electric switch 31 action; If on off state contact 2 is a closure state, then controller 7 can not gathered the switching signal of sending electric switch 3, can not drive relay 1 yet and do any action.
In real work, when the power supply of circuit breaker input has a power failure, the circuit breaker automatic trip.At this moment, on off state contact 2 switches to off-state, and after controller 7 received this status signal, beginning constantly scanned the switching signal of sending electric switch 3.If the power supply of circuit breaker input is not admitted to, then send electric switch 3 to be off-state, this moment, the status signal of electric switch 3 was sent in controller 7 continuation scannings, did not do any operation.After power supply is admitted to, send electric switch 3 to switch to closure state, prove that power supply sends into.But because circuit breaker does not send the electric work ability automatically, so circuit breaker still is in the tripping operation off-state.Controller 7 receive send that electric switch 3 sends send the signal of telecommunication after, can drive relay 1 action connecting the power supply of circuit breaker actuation coil 8, and then circuit breaker is overlapped.Like this, just realized that the incoming call of circuit breaker overlaps function automatically, need not workman's execute-in-place, sent electricity in time, reliably, and ensured workman's personal safety.
The output of controller 7 also is electrically connected with alarm 5, and the input of controller 7 is electrically connected with the reset switch 11 that control alarm 5 stops to report to the police.When controller 7 according on off state contact 2 and the signal that send electric switch 3, control relay 1 action is so that after circuit breaker overlaps, controller 7 can continue the open the light status signal of state contact of scanning.If on off state contact 2 still is an off-state, explain that then circuit breaker reclosing failure or on off state contact 2 are malfunctioning.This moment, controller 7 can send alarm signal by control alarms 5, overhaul with the prompting staff, strong guarantee power supply reliability.When the staff overhauls, through operation reset switch 11, can control alarm 5 and finish this warning, operation is very easy.
In the present embodiment, the input of controller 7 also is electrically connected with the hand branch contact 6 corresponding with the hand switch-dividing of circuit breaker, and controller 7 locks control according to the input signal of hand branch contact 6 to relay 1.Whether divide the status signal of contact 6, controller 7 to know through hand has the staff to carry out interruption maintenance through the manual brake separating mode this moment.Like this, controller 7 just can be controlled this circuit breaker automatic recloser and be in the lock state, and just except that the state of each contact of scanning or switch, forbids carrying out any action.Have only when the maintenance end, after manual brake separating was disengaged, controller 7 just can be removed the lock-out state of this circuit breaker automatic recloser according to hand branch contact 6 status signals that scan, and had improved the fail safe of maintenance greatly.
The input of controller 7 also is electrically connected with the electric leakage sense contact 9 and electric leakage starting switch 10 on the earth leakage protective device.Electric leakage sense contact 9 is state contacts that earth leakage protective carries, can real time reaction the operating state of earth leakage protective device, and this status signal passed to controller 7.Whether controller 7 can judge accurately whether earth leakage protective device earth leakage protective takes place according to the status signal that scans the electric leakage sense contact 9 that obtains, make circuit breaker produce tripping operation.After leakage tripping took place, controller 7 drove relay 1 action so that circuit breaker overlaps through the switching signal of scanning electric leakage starting switch 10 when deciding.Like this, both guaranteed personal safety, and ensured again and sent the electric promptness and the reliability of power supply.
In the present embodiment, signal for ease, each state contact and switch are all represented with switch.Controller 7 adopts the 89c51 chip, and alarm 5 adopts the buzzer of audible alarm and the diode of luminous warning, and its structure and operation principle belong to known technology, no longer carefully state at this.
Claims (5)
1. circuit breaker automatic recloser; It is characterized in that: the relay (1) that comprises the actuation coil break-make of Bypass Control circuit breaker; Relay (1) input is electrically connected with controller (7); Controller (7) input is electrically connected with the on off state contact (2) of reaction circuit breaker switch state, and what the input of controller (7) was electrically connected also that the reaction circuit breaker send electricity condition send electric switch (3).
2. circuit breaker automatic recloser as claimed in claim 1 is characterized in that: also be provided with photoelectrical coupler (4) between the input of the output of controller (7) and relay (1).
3. circuit breaker automatic recloser as claimed in claim 2 is characterized in that: the output of controller (7) also is electrically connected with alarm (5), and the input of controller (7) is electrically connected with the reset switch (11) that control alarm (5) stops to report to the police.
4. like the described circuit breaker automatic recloser of the arbitrary claim of claim 1-3; It is characterized in that: the input of controller (7) also is electrically connected with the hand branch contact (6) corresponding with the hand switch-dividing of circuit breaker, and controller (7) locks control according to the input signal of hand branch contact (6) to relay (1).
5. circuit breaker automatic recloser as claimed in claim 4 is characterized in that: the input of controller (7) also is electrically connected with electric leakage sense contact (9) and the electric leakage starting switch (10) on the earth leakage protective device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220237255 CN202585293U (en) | 2012-05-25 | 2012-05-25 | Automatically reclosing device of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220237255 CN202585293U (en) | 2012-05-25 | 2012-05-25 | Automatically reclosing device of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202585293U true CN202585293U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220237255 Expired - Fee Related CN202585293U (en) | 2012-05-25 | 2012-05-25 | Automatically reclosing device of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202585293U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105446151A (en) * | 2015-12-10 | 2016-03-30 | 陈银奇 | Intelligent household control system |
-
2012
- 2012-05-25 CN CN 201220237255 patent/CN202585293U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105446151A (en) * | 2015-12-10 | 2016-03-30 | 陈银奇 | Intelligent household control system |
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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: 20121205 Termination date: 20130525 |