CN102436986B - Breaker with controller capable of being replaced on live line and electrified replacement method of controller - Google Patents
Breaker with controller capable of being replaced on live line and electrified replacement method of controller Download PDFInfo
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- CN102436986B CN102436986B CN201110295900.XA CN201110295900A CN102436986B CN 102436986 B CN102436986 B CN 102436986B CN 201110295900 A CN201110295900 A CN 201110295900A CN 102436986 B CN102436986 B CN 102436986B
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- current transformer
- saturated current
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Abstract
The invention provides a breaker with a controller capable of being replaced on live line and an electrified replacement method of the controller. The breaker comprises a breaker body, a pedestal, the controller, an upper adapter plate and a lower adapter plate, wherein the breaker body is used for completing switching-on and switching-off actions; the pedestal is fixed on the breaker body; the controller is arranged on the pedestal and serves as a device for signal processing and command controlling; the upper adapter plate is arranged on the pedestal, provided with at least two steps, and used for ensuring that the sequence of electric disconnection and connection can be fulfilled when the controller is detached and the controller is assembled; and the lower adapter plate is arranged on the pedestal, provided with a micro-switch, and used for completing the startup of a protective device of a rapidly saturated current transformer and the cut-off of the protective device of the rapidly saturated current transformer. Compared with the prior art, the breaker provided by the invention has the advantages that the controller of the breaker can be replaced without disconnecting a main circuit or detaching the protective mask of the breaker, the operation is safe, the reliability is high, the power supply persistence of equipment is maintained, and the maintenance time of the breaker is greatly reduced.
Description
Technical field
The present invention relates to field of circuit breakers, especially, relate to a kind of method of circuit breaker and charged for replacement controller of charged for replacement controller.
Background technology
Along with the standardization of circuit breaker and the raising of stability, its purposes is increasingly extensive, can be applicable to distribution occasions all in house, industry and business, and it is a kind of most widely used protective device; Meanwhile, be also a kind of important automatic control equipment.
Take the low-voltage circuit breaker generally applied as example; low-voltage circuit breaker is the critical elements that plays break-make control and protective effect in low-voltage distribution system; wherein; the controller of low-voltage circuit breaker is mainly used in carrying out input processing and sends error protection control command, plays very important effect in low-voltage circuit breaker.Therefore, break down cannot normally work time at controller, just the old controller breaking down need to be unloaded, change new controller.
At present, existing low-voltage circuit breaker all can not meet the technical requirement of charged for replacement controller, can not solve the problem of the high-voltage great-current occurring under charged state, therefore after all must turn-offing main circuit, could change, so, affect the continuous service of breaker apparatus, also bring inconvenience to maintenance.
Summary of the invention
The object of the present invention is to provide a kind of method of circuit breaker and charged for replacement controller, must turn-off main circuit to solve existing low-voltage circuit breaker, take apart after the protective mask of circuit breaker, more changer controller and affect the continuous service of breaker apparatus and safeguard inconvenient problem.
For solving above-mentioned and other problem, the present invention provides a kind of circuit breaker of charged for replacement controller on the one hand, comprising: breaker body, disposes separating brake actuator loop, quick-magnetic saturated current transformer, other secondary circuits; Be fixed on the pedestal on described breaker body; Be arranged on the controller on described pedestal; Instrument transformer protective device, is connected in parallel in described instrument transformer circuit, with described controller interlock; Upper keyset, is provided with at least two steps, for guaranteeing removing described controller and the disconnection that meets when described controller on electric is installed and the order of connection; Removing the separating brake actuator loop of guaranteeing first cut-off breaker in the process of described controller, restart the instrument transformer protective device of quick-magnetic saturated current transformer, finally disconnect all secondary circuits; In the process of described controller, guarantee first to connect other all secondary circuits except the instrument transformer protective device of separating brake actuator loop and quick-magnetic saturated current transformer in installation, excise again the instrument transformer protective device of quick-magnetic saturated current transformer, finally connect separating brake actuator loop; And lower keyset, be equipped with the sensitive switch linking with described controller, for starting the instrument transformer protective device of quick-magnetic saturated current transformer and the instrument transformer protective device of excision quick-magnetic saturated current transformer.
Alternatively, described circuit breaker also comprises for described controller is fixed on to the fastener on described pedestal.
Alternatively, described fastener comprises hitching post, lays respectively at card convex piece and the knob of two ends of described hitching post.
Alternatively, the instrument transformer protective device that starts quick-magnetic saturated current transformer comprises short circuit quick-magnetic saturated current transformer, and the instrument transformer protective device of excision quick-magnetic saturated current transformer comprises cut-out quick-magnetic saturated current transformer.
Alternatively, described sensitive switch also comprises as warning indicator, for output alarm signal in the time that described controller departs from described pedestal.
Alternatively, in described pedestal, be equipped with flexible member, for supplementing the fit clearance between described controller and described pedestal, absorbing products vibrations.
Alternatively, described circuit breaker also comprises: be configured in the protective mask on described breaker body; Be configured on described breaker body, for hiding the emergency exit of described controller.
The present invention also provides a kind of method of controller of charged for replacement circuit breaker, and described replacing method comprises the process of charged dismounting controller and the process of charged installation controller; The process of described charged dismounting controller comprises: open emergency exit; Breaking controller is connected with pedestal; Once pull out controller, the process of pull-out completes the separating brake actuator loop of first cut-off breaker, restarts the instrument transformer protective device of quick-magnetic saturated current transformer, finally disconnects all secondary circuits; The process of described charged installation controller comprises: insert controller, in the process of inserting, guarantee first to connect other all secondary circuits except the instrument transformer protective device of separating brake actuator loop and quick-magnetic saturated current transformer, excise again the instrument transformer protective device of quick-magnetic saturated current transformer, finally connect separating brake actuator loop; Controller is connected with pedestal; Closed safe door.
Alternatively, the instrument transformer protective device that starts quick-magnetic saturated current transformer comprises short circuit quick-magnetic saturated current transformer, and the instrument transformer protective device of excision quick-magnetic saturated current transformer comprises cut-out quick-magnetic saturated current transformer.
Compared to prior art, circuit breaker provided by the invention, has the function of charged for replacement controller, and simple in structure, easy accessibility safety.
The method of the controller of replacing circuit breaker provided by the invention, remove and install according to certain operating procedure, quick-magnetic saturated current transformer be can under charged state, limit and high pressure and large electric current produced, just can realize under charged state more changer controller, tool has the following advantages: make circuit breaker have the function of charged for replacement controller, and can in the case of not taking the protective mask of circuit breaker apart, directly from circuit breaker, take out controller, complete the replacing of the controller of circuit breaker, and handling safety, guarantee equipment and operating personnel's safety, reliability is high, the continuation of the power supply of maintenance equipment, greatly reduce the preventive maintenance time of circuit breaker.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the method for the controller of charged for replacement circuit breaker of the present invention;
Fig. 2 is the structural representation of the circuit breaker of charged for replacement controller of the present invention;
Fig. 3 is the structural representation of fastener in the circuit breaker of Fig. 2;
Fig. 4 is the structural representation of upper keyset in the circuit breaker of Fig. 2;
Fig. 5 is the structural representation of lower keyset in the circuit breaker of Fig. 2.
Embodiment
The present inventor finds: existing low-voltage circuit breaker all can not meet the technical requirement of charged for replacement controller, can not solve the problem of the high-voltage great-current occurring under charged state, therefore all must on electric, turn-off main circuit, after must taking face shield in structure apart, could change, so, affect the continuous service of breaker apparatus, also bring inconvenience to maintenance.
Therefore, the present inventor has proposed a kind of method of circuit breaker and the charged for replacement controller with charged for replacement controller function, by the process of charged dismounting controller and the process of charged installation controller, quick-magnetic saturated current transformer be can under charged state, limit and high pressure and large electric current produced, just can realize under charged state more changer controller, in structure, more not need the protective mask of taking circuit breaker apart can complete disassemble and assemble work.
Below the method for the circuit breaker to invention charged for replacement controller and charged for replacement controller by specific embodiment is elaborated.
Fig. 1 has shown the schematic flow sheet of the method for the controller of charged for replacement circuit breaker.As shown in Figure 1, described preparation method comprises the process of charged dismounting controller and the process of charged installation controller;
The process of described charged dismounting controller comprises:
Step S101, opens emergency exit;
Step S103, breaking controller is connected with pedestal;
Step S105, once pulls out controller, and the process of pull-out comprises: the separating brake actuator loop of first cut-off breaker, restart the instrument transformer protective device of quick-magnetic saturated current transformer, and finally disconnect all secondary circuits;
The process of described charged installation controller comprises:
Step S107, insert controller, the process of inserting comprises: first connect other all secondary circuits except the instrument transformer protective device of separating brake actuator loop and quick-magnetic saturated current transformer, excise again the instrument transformer protective device of quick-magnetic saturated current transformer, finally connect separating brake actuator loop;
Step S109, is connected controller with pedestal;
Step S111, closed safe door.
It should be noted that, in the present invention, describe as an example of low-voltage circuit breaker example, certainly, not as limit, in other embodiments, can be also other similar circuit breakers.As shown in Figure 2, shown a kind of structural representation of low-voltage circuit breaker.As shown in Figure 2, low-voltage circuit breaker comprises: for completing the breaker body 10 of on/off switch action, dispose separating brake actuator loop, quick-magnetic saturated current transformer, other secondary circuits (not shown) in graphic; Be fixed on the pedestal 12 on breaker body 10, the action command sending for implementation controller 14 and feed back corresponding state information etc.; Be arranged on controller 14 on pedestal 12, as the device of signal processing and instruction control; Instrument transformer protective device, is connected in parallel in described instrument transformer circuit, with described controller interlock; Upper keyset 15, is provided with at least two steps, for guaranteeing removing described controller and the disconnection that meets when described controller on electric is installed and the order of connection; Lower keyset 17, is equipped with the sensitive switch linking with described controller, for starting the instrument transformer protective device of quick-magnetic saturated current transformer and the instrument transformer protective device of excision quick-magnetic saturated current transformer; Protective mask 16; And emergency exit 18, for hiding at controller 14, play safeguard protection effect, prevent abnormal operation.
Below in conjunction with Fig. 1 and Fig. 2, above steps is described in detail.
Step S101, opens emergency exit 18, thereby controller 14 is come out.
Step S103, breaking controller 14 is connected with pedestal 12.In the present embodiment, controller 14 utilizes fastener 13 (again incorporated by reference to Fig. 3) realization to be connected with pedestal 12.Fastener 13 comprises hitching post 131, lays respectively at card convex point 133 and the knob 135 of two ends of hitching post 131.Particularly, the knob 135 of outwarding winding, card convex point 133 is taken advantage of a situation and is rotated no longer engaging, and controller 14 disengagings are connected with pedestal 12; Screw knob 135, card convex point 133 is taken advantage of a situation and is rotated engaging, controller 14 and pedestal 12 engagement connections.In the present embodiment, on the diagonal angle of controller 14, be provided with two fasteners 13, certainly not as limit, in actual applications, can and firmness requirement be installed according to the structure of controller 14, the set-up mode of fastener 13 and quantity thereof still can have other variation, do not repeat them here.
In addition, in pedestal 12, be equipped with flexible member (being for example spring, not in graphic middle sign), for supplementing the fit clearance between described controller and described pedestal, can play the effect of absorbing products vibrations, protection controller 14.
Step S105, once pulls out old controller 14, and the process of pull-out comprises: the separating brake actuator loop of first cut-off breaker, restart the instrument transformer protective device of quick-magnetic saturated current transformer, and finally disconnect all secondary circuits.Particularly, old controller 14 is pulled out from pedestal 12, in the process of pull-out, successively disconnection order below having guaranteed to meet in the process of extracting by two steps 151,153 (as shown in Figure 4) of upper keyset 15: first disconnect separating brake actuator loop, prevent circuit breaker misoperation; By all short circuits of the multiple sensitive switches 171 (as shown in Figure 5) on lower keyset 17, a part of sensitive switch 171 wherein, by quick-magnetic saturated current transformer short circuit, produces high-voltage great-current with protection equipment and personal security for limiting quick-magnetic saturated current transformer; Another part sensitive switch 171 is as warning indicator, for output alarm signal in the time that 14 controllers depart from described pedestal, controller is installed is as early as possible put in place to point out; Finally disconnect all secondary circuits.
To step S105, can complete the dismounting of old controller 14 by step S101.
Step S107; insert new controller 14; the process of inserting comprises: first connect other all secondary circuits except the instrument transformer protective device of separating brake actuator loop and quick-magnetic saturated current transformer; excise again the instrument transformer protective device of quick-magnetic saturated current transformer, finally connect separating brake actuator loop.Particularly, pack new controller 14 into protective mask 16, lower pressure controller 14 puts in place, pressing down in process, first connects other secondary circuits except separating brake actuator loop and quick-magnetic saturated current transformer protection loop; Cut off again the loop of quick-magnetic saturated current transformer, close output state index signal simultaneously; Finally connect separating brake actuator loop.
Step S109, is connected controller 14 with pedestal 12.Particularly, screw knob 135, card convex point 133 is taken advantage of a situation and is rotated engaging, controller 14 and pedestal 12 engagement connections.
Step S111, closed safe door 18.
To step S111, can complete the installation of new controller 14 by step S107.
Described in summary, circuit breaker provided by the invention, include for guaranteeing removing described controller and the disconnection that meets when described controller on electric is installed and the upper keyset of the order of connection and there is the instrument transformer protective device for starting quick-magnetic saturated current transformer, the lower keyset of the sensitive switch of the instrument transformer protective device of excision quick-magnetic saturated current transformer, make circuit breaker there is the function of charged for replacement controller, dismounting safe ready, do not need to take apart the protective mask of circuit breaker, simple in structure, reliability is high, guarantee power supply continuation, reduce preventive maintenance time.
In addition, the method of the controller of replacing circuit breaker provided by the invention, remove and install according to certain operating procedure, quick-magnetic saturated current transformer be can under charged state, limit and high pressure and large electric current produced, just can realize under charged state more changer controller, tool has the following advantages: make circuit breaker have the function of charged for replacement controller, and can in the case of not taking the protective mask of circuit breaker apart, directly from circuit breaker, take out controller, complete the replacing of the controller of circuit breaker, and handling safety, guarantee equipment and operating personnel's safety, reliability is high, the continuation of the power supply of maintenance equipment, greatly reduce the preventive maintenance time of circuit breaker.
Above-described embodiment just lists expressivity principle of the present invention and effect is described, but not for limiting the present invention.Any person skilled in the art person all can without departing from the spirit and scope of the present invention, modify to above-described embodiment.Therefore, the scope of the present invention, should be as listed in claims.
Claims (9)
1. a circuit breaker for charged for replacement controller, is characterized in that, comprising:
Breaker body, disposes separating brake actuator loop, quick-magnetic saturated current transformer, other secondary circuits;
Be fixed on the pedestal on described breaker body;
Be arranged on the controller on described pedestal;
Instrument transformer protective device, is connected in parallel in described instrument transformer circuit, with described controller interlock;
Upper keyset, is provided with at least two steps, for guaranteeing removing described controller and the disconnection that meets when described controller on electric is installed and the order of connection; Removing the separating brake actuator loop of guaranteeing first cut-off breaker in the process of described controller, restart the instrument transformer protective device of quick-magnetic saturated current transformer, finally disconnect all secondary circuits; In the process that described controller is installed, guarantee first to connect other secondary circuits except the instrument transformer protective device of separating brake actuator loop and quick-magnetic saturated current transformer, excise again the instrument transformer protective device of quick-magnetic saturated current transformer, finally connect separating brake actuator loop;
Lower keyset, is equipped with the sensitive switch linking with described controller, for starting the instrument transformer protective device of quick-magnetic saturated current transformer and the instrument transformer protective device of excision quick-magnetic saturated current transformer.
2. the circuit breaker of charged for replacement controller according to claim 1, is characterized in that, also comprises for described controller is fixed on to the fastener on described pedestal.
3. the circuit breaker of charged for replacement controller according to claim 2, is characterized in that, described fastener comprises hitching post, lays respectively at card convex piece and the knob of two ends of described hitching post.
4. the circuit breaker of charged for replacement controller according to claim 1; it is characterized in that; the instrument transformer protective device that starts quick-magnetic saturated current transformer comprises short circuit quick-magnetic saturated current transformer, and the instrument transformer protective device of excision quick-magnetic saturated current transformer comprises cut-out quick-magnetic saturated current transformer.
5. the circuit breaker of charged for replacement controller according to claim 1, is characterized in that, described sensitive switch is also as warning indicator, for output alarm signal in the time that described controller departs from described pedestal.
6. the circuit breaker of charged for replacement controller according to claim 1, is characterized in that, in described pedestal, is equipped with flexible member, for supplementing the fit clearance between described controller and described pedestal, absorbs circuit breaker vibrations.
7. the circuit breaker of charged for replacement controller according to claim 1, is characterized in that, also comprises:
Be configured in the protective mask on described breaker body;
Be configured on described breaker body, for hiding the emergency exit of described controller.
8. a method for the controller of charged for replacement circuit breaker, described method comprises the process of charged dismounting controller and the process of charged installation controller; It is characterized in that,
The process of described charged dismounting controller comprises:
Open emergency exit;
Breaking controller is connected with pedestal;
Once pull out controller, the process of pull-out comprises: the separating brake actuator loop of first cut-off breaker, restart the instrument transformer protective device of quick-magnetic saturated current transformer, and finally disconnect all secondary circuits;
The process of described charged installation controller comprises:
Insert controller, the process of inserting comprises: first connect other secondary circuits except the instrument transformer protective device of separating brake actuator loop and quick-magnetic saturated current transformer, excise again the instrument transformer protective device of quick-magnetic saturated current transformer, finally connect separating brake actuator loop;
Controller is connected with pedestal;
Closed safe door.
9. the method for the controller of charged for replacement circuit breaker according to claim 8; it is characterized in that; the instrument transformer protective device that starts quick-magnetic saturated current transformer comprises short circuit quick-magnetic saturated current transformer, and the instrument transformer protective device of excision quick-magnetic saturated current transformer comprises cut-out quick-magnetic saturated current transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110295900.XA CN102436986B (en) | 2011-09-30 | 2011-09-30 | Breaker with controller capable of being replaced on live line and electrified replacement method of controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110295900.XA CN102436986B (en) | 2011-09-30 | 2011-09-30 | Breaker with controller capable of being replaced on live line and electrified replacement method of controller |
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| CN102436986A CN102436986A (en) | 2012-05-02 |
| CN102436986B true CN102436986B (en) | 2014-05-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202259100U (en) * | 2011-09-30 | 2012-05-30 | 上海良信电器股份有限公司 | Breaker having controller that can be replaced in an electrified condition |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AUPQ672300A0 (en) * | 2000-04-05 | 2000-05-04 | Nu-Lec Industries Pty Limited | Isolating circuit breaker and circuit protection arrangement |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202259100U (en) * | 2011-09-30 | 2012-05-30 | 上海良信电器股份有限公司 | Breaker having controller that can be replaced in an electrified condition |
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| CN102436986A (en) | 2012-05-02 |
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Effective date of registration: 20191122 Address after: 314300 room 1205-3, 1817 Haigang Avenue, Xitangqiao Street (Haiyan Economic Development Zone), Haiyan County, Jiaxing City, Zhejiang Province Patentee after: Liangxin Electrical Appliances (Haiyan) Co., Ltd. Address before: 200137 Shanghai Pudong New Area Gaohang Town Road No. 668 building 4-8 scale Patentee before: Shanghai Liangxin Electrical Co., Ltd. |