CN101609969B - A control device for an automatic reset apparatus - Google Patents
A control device for an automatic reset apparatus Download PDFInfo
- Publication number
- CN101609969B CN101609969B CN200910130233.2A CN200910130233A CN101609969B CN 101609969 B CN101609969 B CN 101609969B CN 200910130233 A CN200910130233 A CN 200910130233A CN 101609969 B CN101609969 B CN 101609969B
- Authority
- CN
- China
- Prior art keywords
- control device
- electromechanical units
- fault current
- actuating mechanism
- microswitch
- 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.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/2463—Electromagnetic mechanisms with plunger type armatures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
- H01H71/465—Self-contained, easily replaceable microswitches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
- H01H71/68—Power reset mechanisms actuated by electromagnet
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H75/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of power reset mechanism
- H01H75/02—Details
- H01H75/04—Reset mechanisms for automatically reclosing a limited number of times
Abstract
A control device for an automatic reset apparatus has a plurality of electromechanical units, each electrically connected to a phase of an electrical system. The electromagnetic units are kinematically connected to an actuation mechanism of a microswitch that drives an electronic control device of a reset apparatus associated with a protection device of the system. Each of the electromechanical units operates independently of the others and uses an electromagnetic field that is generated by the fault current of the phase connected thereto in order to act on the mechanism that acts on the microswitch, which is functionally connected to the electronic control device of the reset apparatus in order to inhibit its operation.
Description
Technical field
The present invention relates to a kind of control device for automatic reset apparatus.
Background technology
As everyone knows, family expenses and industrial electric power system all have protective device, and this protective device is suitable for preventing that fault current from causing user and the load being connected on electric wire to be subject to danger.
After the existence that fault current detected, protective device open-circuit line, has therefore interrupted being arranged on the supply of electric power of the load in downstream.
After this is intervened, once recover the proper operation condition of electric power system, this protective device should be resetted.
People arrive equipment development, and after protective device starts, after confirming the proper operation of system, this protective device automatically resets.
In electric power system; before again closing at automatic reset apparatus the protective device being associated, there is Fault Control; within the scope of these automatic reset apparatus development; people need to use reliable, simple and cheap circuit arrangement, to identify ground wire isolated fault (ground wire leakage electric current) and overload current fault (overload or short circuit current).
EP1569314 discloses a kind of method for detection of ground wire isolated fault.
At present, the commercial automatic reset device that can utilize can detect the fault causing due to overload, and it comes verification to have short circuit at this place by measuring mobile electric current in down-stream system.
Due to the fault of the protective device being associated, this is only measured and carries out after automatically opening.
Automatic reset device passes through electronic control circuit generation current, thereby supplies power to circuit downstream by having the single-phase isolating transformer of utmost point lower security voltage.
Certainly, the value of circulating current depends on the value of the impedance of circuit downstream.
Based on this, producer has set up so-called " resetting current threshold value ", and on this threshold value, automatic reset device is closed the protective device being associated again, under this threshold value, by automatically again closing of the protective device of forbidding being associated.
In practice, this automatic reset device is only used together with double-pole switch.
At three-phase or three-phase+neutrality (L1, L2, L3; N) in distribution system, because the cost of enormous size and cost is high, at automatic reset device and three utmost points and four electrode protector (3P; 3P+N, 4P) in the application that is associated, in fact said system has run into sizable difficulty.
In fact, people more and more need to use the three-phase transformer with three independent measurement loops, each measuring circuit is for each phase, or as selecting, use has the alternately system of the single-phase transformer of translation function of tape relay, to check all possible fault combination (L1-L2, L1-L3, L2-L3, L1-N, L2-N, L3-N).
Summary of the invention
Main purpose of the present invention is to provide a kind of control device that is applied to automatic reset apparatus, and it has overcome the defect of enumerating in prior art.
In the scope of this main purpose, the object of the present invention is to provide a kind of device being associated with the protective device of system, this device can detect the fault causing due to overload current, and can not bring problem and the defect of existing system.
Another object of the present invention is to provide a kind of device reliable, cheap and that easily manufacture.
Another object of the present invention is to provide a kind of device, and this device can reduce the detection time of overload current fault in a large number, and in fact, this device is synchronizeed and started with the unlatching of protective device.
Another object of the present invention is to provide a kind of device, and this device can be implemented meticulous adjusting to the fault current threshold value that this device is started, thereby picks out any overload current value and short-circuit current value.
Another object of the present invention is to provide a kind of device, and this device can be associated with the protective device of any type, and any fault combination in can testing circuit.
Another object of the present invention is to provide a kind of device, and because this installs specific architectural feature, this device can be guaranteed reliability and the fail safe in use to greatest extent.
Above-mentioned main purpose and other object will become more apparent from following description, this main purpose and other object reach by the control device for automatic reset apparatus, it is characterized in that: this control device comprises a plurality of electromechanical units, described in each, electromechanical units is electrically connected to going up mutually of electrical system, described electromechanical units can be connected to transmission on the actuating mechanism of microswitch, this actuating mechanism is suitable for driving the electronic-controlled installation of homing device, and this electronic-controlled installation is associated with the protective device in this system; Described in each, electromechanical units is independent of other unit operations, and be suitable for using by be connected with this unit mutually in the electromagnetic field of fault current generation, to act on described actuating mechanism, described actuating mechanism acts on described microswitch, and this microswitch is functionally connected on the described electronic-controlled installation of described homing device.
Accompanying drawing explanation
Preferably but the description of nonexcludability embodiment, further feature and advantage will become more apparent these embodiment set forth by reference to the non-limitative example in accompanying drawing from of the present invention, wherein:
Fig. 1 is the perspective view according to control device of the present invention;
Fig. 2 is the back perspective view of this control device;
Fig. 3 is the decomposition diagram of this control device;
Fig. 4 is the front sectional view of the control device with dynamo-electric assembly under non-action condition;
Fig. 5 is and the similar view of earlier figures, but the figure shows the control device under single-phase action condition;
Fig. 6 is the perspective view of dynamo-electric assembly and corresponding terminal.
Embodiment
Referring to accompanying drawing, according to the present invention, the control device conventionally representing with Reference numeral 1 comprises the shell consisting of substrate 2, and this substrate 2 is sealed by lid 3, and this lid 3 has at the bottom of the intermediate base of insertion 7.
At the bottom of substrate 2, lid 3 and intermediate base, 7 form a plurality of bases 4 for corresponding electromechanical units 5, and this electromechanical units is associated with corresponding terminal 6.
Microswitch 8 is activated by actuator lever 9, and this actuator lever 9 has a plurality of engaged with base 10 for corresponding transmission connecting rod mechanism 11.
Each transmission connecting rod mechanism 11 is associated with corresponding electromechanical units 5 by cross bar 12, and this cross bar 12 is connected to the movable core 13 of electromechanical units on this linkage.
Each electromechanical units 5 has the sheath 14 consisting of folded sheet metal, and this sheath 14 comprises movable core 13, fixedly core 15, coil 16 and bobbin 17.
The axial motion of movable core 13 forms opposition (contrast) by the spring 18 that opposes.The prestrain of this opposition spring 18 is adjustable by adjusting screw(rod) 19, to regulate magnetic threshold value, as will be described below.
Each adjusting screw(rod) 19 can enter from outside by corresponding opening 21, and this opening 21 is arranged in substrate 2, and is equipped with connector 22.
Dynamo-electric assembly is connected in corresponding terminal 6 by two L shaped terminal body 20.
Microswitch 8 is connected on card 23, and this card 23 is connected up to be connected with outside.
According to the present invention, the electromagnetic field that each electromechanical units utilization is produced by fault current.Each unit comprises two primary clusterings: the first assembly consisting of two electromagnetic components, and actuating mechanism, wherein, described two electromagnetic components are fixedly core 15 and movable core 13, the impact of the electromagnetic field that they are subject to being produced by fault current, described actuating mechanism comprises actuator lever 9, linkage 11 and cross bar 12.
By electromagnetic field and the power that produced by the interaction between Motionless electromagnetic parts and movable electromagnetic component, make this movable electromagnetic component 13 motions, this motion acts on the lever system acting directly on microswitch 8, this microswitch 8 is functionally connected on the electronic-controlled installation of homing device, invisible in the drawings.
Adopt in this way, this electronic-controlled installation detects the signal being produced by microswitch 8, and has suppressed immediately automatically again closing of the protective device that is associated with homing device.
This device, except reliable, cheap and be easy to manufacture, can also reduce in a large number detection time of overcurrent fault, because this device is synchronizeed and started with the unlatching of protective device.
Magnetic adjusting screw(rod) 19 can be to making the fault current threshold value that control device starts implement accurate adjusting, thereby pick out any overload current value and short-circuit current value.
Between functional failure of electromechanical detecting unit 5, be also separate, non-interfering, therefore, on inner actuating mechanism, can mutually do not hinder.
Under which, above-mentioned out of order combination can detect by this control device, and this control device can be associated with the protective device (1P, 1P+N, 2P, 3P, 3P+N, 4P) of any type.
In practice, have been found that the present invention has reached above-mentioned purpose and other object that will reach.
The application requires in the priority of the disclosures in Italian patent application No.MI2008A001092 of submission on June 17th, 2008, and the theme of this application is all incorporated into herein as a reference.
Claims (9)
1. the control device for automatic reset apparatus, it is characterized in that: this control device comprises a plurality of electromechanical units, described in each, electromechanical units is electrically connected to going up mutually of electrical system, described electromechanical units can be connected to transmission on the actuating mechanism of microswitch, this actuating mechanism is suitable for driving the electronic-controlled installation of homing device, and this electronic-controlled installation is associated with the protective device in this electrical system; Described in each, electromechanical units is independent of other electromechanical units operation, and be suitable for using by be connected with this electromechanical units mutually in the electromagnetic field that produces of fault current, to act on described actuating mechanism, this actuating mechanism acts on described microswitch, and this microswitch is functionally connected on the described electronic-controlled installation of described homing device.
2. control device as claimed in claim 1, is characterized in that: this control device comprises the adjusting device for meticulous adjusting fault current threshold value, and this fault current threshold value activates described control device.
3. control device as claimed in claim 1 or 2, it is characterized in that: described in each, electromechanical units comprises the parts that consist of two electromagnetic components and is connected to the mechanical part on described actuating mechanism, described two electromagnetic components are fixed component and movable part, and they are subject to the impact of the electromagnetic field that produced by described fault current.
4. control device as claimed in claim 1, is characterized in that: described in each, electromechanical units comprises the sheath consisting of folded sheet metal, and this sheath comprises movable core, fixedly core, coil and bobbin.
5. control device as claimed in claim 4, it is characterized in that: this control device comprises the adjusting device for meticulous adjusting fault current threshold value, this fault current threshold value activates described control device, and described adjusting device comprises opposition spring, this opposition spring and the effect of described movable core opposition, the prestrain of described spring is adjustable by adjusting screw(rod), to regulate magnetic threshold value.
6. control device as claimed in claim 1, is characterized in that: described in each, electromechanical units is connected in corresponding terminal by two L shaped terminal body.
7. control device as claimed in claim 4, is characterized in that: described actuating mechanism comprises the actuator lever that is suitable for activating described microswitch, and described actuator lever comprises a plurality of engaged with base for corresponding transmission connecting rod mechanism; Described in each, transmission connecting rod mechanism is associated with the corresponding electromechanical units in described electromechanical units by cross bar, and this cross bar is connected to the described movable core of electromechanical units on described linkage.
8. control device as claimed in claim 1, is characterized in that: this control device comprises the shell being comprised of substrate, and this substrate is by closed with covers.
9. control device as claimed in claim 8, it is characterized in that: described in each, electromechanical units is connected in corresponding terminal by two L shaped terminal body, and described substrate comprises a plurality of bases for described electromechanical units, these bases are associated with corresponding terminal by intermediate base base member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI20081092 ITMI20081092A1 (en) | 2008-06-17 | 2008-06-17 | CONTROL DEVICE FOR AUTOMATIC RESET EQUIPMENT |
| ITMI2008A001092 | 2008-06-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101609969A CN101609969A (en) | 2009-12-23 |
| CN101609969B true CN101609969B (en) | 2014-03-26 |
Family
ID=40301805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910130233.2A Active CN101609969B (en) | 2008-06-17 | 2009-03-26 | A control device for an automatic reset apparatus |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2136383B1 (en) |
| CN (1) | CN101609969B (en) |
| ES (1) | ES2683833T3 (en) |
| IT (1) | ITMI20081092A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091731B (en) * | 2014-07-15 | 2017-01-25 | 佳一电气有限公司 | Energy conservation mechanism |
| CN104078288B (en) * | 2014-07-18 | 2016-06-22 | 佳一电气有限公司 | A kind of electromagnetic operating mechanism |
| CN104241051B (en) * | 2014-09-30 | 2017-04-19 | 佳一电气有限公司 | Electromagnetic opening-closing mechanism used for multi-functional terminal electric appliance |
| CN105590810A (en) * | 2014-10-23 | 2016-05-18 | 苏州市吴中区欣鑫开关配件厂 | Conducting rod for high-voltage breaker and processing method thereof |
| CN104282507B (en) * | 2014-10-31 | 2016-04-27 | 佳一电气有限公司 | A kind of compact energy-saving electromagnetic operating mechanism |
| ITUA20164207A1 (en) * | 2016-06-08 | 2017-12-08 | Gewiss Spa | COMPACT CONTROL MODULE, FOR AUTOMATIC RESET DEVICES |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3525956A (en) * | 1968-09-09 | 1970-08-25 | William M Poschman | Control apparatus for electrical circuit breaker |
| EP1209712A1 (en) * | 2000-11-21 | 2002-05-29 | Hager Electro S.A. | Remote control device for modular protective apparatus |
| CN2762331Y (en) * | 2004-12-30 | 2006-03-01 | 上海力以电气有限公司 | Earth fault circuit breaker with earth fault detection mechanism |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB538109A (en) * | 1940-04-18 | 1941-07-21 | Crabtree & Co Ltd J A | Improvements in and connected with solenoids |
| US6404314B1 (en) * | 2000-02-29 | 2002-06-11 | General Electric Company | Adjustable trip solenoid |
| DE10109950A1 (en) * | 2001-03-01 | 2002-09-05 | Moeller Gmbh | Selective trip arrangement |
| DE10157852B4 (en) * | 2001-11-24 | 2007-04-12 | Moeller Gmbh | Test arrangement with short-circuit detector |
| ES2290657T3 (en) | 2004-02-27 | 2008-02-16 | Gewiss S.P.A. | AUTOMATIC REPLACEMENT DEVICE PARTICULARLY FOR CIRCUITS THAT OPERATE WITH RESIDUAL AND SIMILAR CURRENT. |
| DE102006033717B4 (en) * | 2006-07-20 | 2009-06-04 | Siemens Ag | Adjustable short-circuit release |
-
2008
- 2008-06-17 IT ITMI20081092 patent/ITMI20081092A1/en unknown
-
2009
- 2009-02-09 ES ES09001752.6T patent/ES2683833T3/en active Active
- 2009-02-09 EP EP09001752.6A patent/EP2136383B1/en active Active
- 2009-03-26 CN CN200910130233.2A patent/CN101609969B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3525956A (en) * | 1968-09-09 | 1970-08-25 | William M Poschman | Control apparatus for electrical circuit breaker |
| EP1209712A1 (en) * | 2000-11-21 | 2002-05-29 | Hager Electro S.A. | Remote control device for modular protective apparatus |
| CN2762331Y (en) * | 2004-12-30 | 2006-03-01 | 上海力以电气有限公司 | Earth fault circuit breaker with earth fault detection mechanism |
Non-Patent Citations (1)
| Title |
|---|
| JP平2-12731A 1990.01.17 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101609969A (en) | 2009-12-23 |
| ITMI20081092A1 (en) | 2009-12-18 |
| EP2136383B1 (en) | 2018-06-27 |
| ES2683833T3 (en) | 2018-09-28 |
| EP2136383A2 (en) | 2009-12-23 |
| EP2136383A3 (en) | 2013-06-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101609969B (en) | A control device for an automatic reset apparatus | |
| CN100373517C (en) | Permanent-magnet grounding fault breaker plug and its permanent-magnet movement mechanism | |
| AU743501B2 (en) | Circuit interrupter with test actuator for ground fault and arc fault test mechanisms | |
| US7408432B2 (en) | Receptacle type ground-fault circuit interrupter | |
| CA2434948C (en) | Ground fault/arc fault circuit interrupter and method of testing the same with a test button and a reset button | |
| CN202550296U (en) | Electrical wiring device used for power distribution system | |
| US8614611B2 (en) | Protective device having a thin construction | |
| US20060238933A1 (en) | Ground fault circuit interrupters providing end of the life test | |
| CN101317243B (en) | Circuit breaker including open neutral interlock | |
| CN101965620B (en) | Residual-current circuit breaker | |
| US7715158B2 (en) | Circuit interrupter with live ground detector | |
| CN101211728A (en) | Earth leakage circuit breaker | |
| US8760849B2 (en) | Leakage detection protection circuit with lightning protection | |
| US11257649B2 (en) | Voltage protective device having a resettable circuit interrupter that is trippable in an overvoltage condition | |
| CA2260525A1 (en) | Ground fault electrical switching apparatus for coordinating tripping with a downstream ground fault switch | |
| US20130057988A1 (en) | Leakage current detector | |
| CN101681750B (en) | Residual current device | |
| CN107238749B (en) | Differential current sensor | |
| CN100590937C (en) | Multifunctional fireproofing over loading protecting socket | |
| US8749941B2 (en) | Residual-current circuit breaker | |
| CN101911418B (en) | Module mechanically linkable to a circuit breaker | |
| AU2003200300A1 (en) | Diagnostic wiring verification tester | |
| EP1050059B1 (en) | Instantaneous trip power transformer | |
| CN201025650Y (en) | Multi-function fireproof overload protection jack | |
| CN207834228U (en) | Miniature circuit breaker with New type of current detection components |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |