CN101609969A - The control device that is used for automatic reset apparatus - Google Patents
The control device that is used for automatic reset apparatus Download PDFInfo
- Publication number
- CN101609969A CN101609969A CN 200910130233 CN200910130233A CN101609969A CN 101609969 A CN101609969 A CN 101609969A CN 200910130233 CN200910130233 CN 200910130233 CN 200910130233 A CN200910130233 A CN 200910130233A CN 101609969 A CN101609969 A CN 101609969A
- Authority
- CN
- China
- Prior art keywords
- control device
- actuating mechanism
- microswitch
- unit
- electromechanical units
- 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.)
- Granted
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Classifications
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- 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
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- 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 kind of control device that is used for automatic reset apparatus, this control device has a plurality of electromechanical units, and each electromechanical units is electrically connected to going up mutually of electrical system.Be connected on the actuating mechanism of microswitch, this actuating mechanism is suitable for driving the electronic-controlled installation of homing device this electromechanical units passive movement, and this electronic-controlled installation is associated with the protective device of this system.Each electromechanical units is independent of other unit operations, and use by link to each other with this unit mutually in the electromagnetic field that produces of fault current, to act on the described actuating mechanism, this actuating mechanism acts on the described microswitch, this microswitch functionally is connected on the described electronic-controlled installation of described homing device, so that forbid its operation.
Description
Technical field
The present invention relates to a kind of control device that is used 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 that is connected on the electric wire to be subjected to danger.
After the existence that detects fault current, therefore the protective device open-circuit line has interrupted the supply of electric power to the load that is arranged on the downstream.
After this is intervened,, this protective device should be resetted in case recovered the proper operation condition of electric power system.
People develop into equipment, after protective device starts, confirm that this protective device automatically resets after the proper operation of system.
In electric power system; has Fault Control before closing the protective device that is associated once more at automatic reset apparatus; within the scope of these automatic reset apparatus development; people need use reliable, simple and cheap circuit arrangement, with identification ground wire isolated fault (ground wire leakage electric current) and overload current fault (overload or short circuit current).
EP1569314 discloses a kind of method that is used to detect the ground wire isolated fault.
At present, the commercial automatic reset device that can utilize can detect the fault that causes owing to overload, and it comes verification to have short circuit at this place by measure the electric current that flows in down-stream system.
Because the fault of the protective device that is associated, this is only measured and carries out after opening automatically.
Automatic reset device produces electric current by electronic control circuit, thereby supplies power to circuit downstream by the single-phase isolating transformer with utmost point lower security voltage.
Certainly, the value of circulating current depends on the value of the impedance of circuit downstream.
Based on this, the producer has set up so-called " resetting current threshold value ", and on this threshold value, automatic reset device is closed the protective device that is associated once more, under this threshold value, will forbid closing once more automatically of the protective device that is associated.
In practice, this automatic reset device only uses together with double-pole switch.
At three-phase or three-phase+neutrality (L1, L2, L3; N) in the distribution system, because the cost height of enormous size and cost, at automatic reset device and three utmost points and four electrode protector (3P; 3P+N, in the application that 4P) 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 is measured the loop and is used for each phase, perhaps as the alternately system of the single-phase transformer of translation function of selecting, use to have 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 defective of enumerating in the prior art.
In the scope of this main purpose, the object of the present invention is to provide a kind of device that is associated with the protective device of system, this device can detect the fault that causes owing to overload current, and can not bring the problem and the defective of existing system.
Another object of the present invention provides a kind of device reliable, cheap and that make easily.
Another object of the present invention provides a kind of device, and this device can reduce the detection time of overload current fault in a large number, and in fact, the unlatching of this device and protective device starts synchronously.
Another object of the present invention provides 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 provides a kind of device, and this device can be associated with the protective device of any kind, and any fault combination in can testing circuit.
Another object of the present invention provides a kind of device, because the specific architectural feature of this device, reliability and fail safe during this device can be guaranteed to use to greatest extent.
Above-mentioned main purpose and other purpose will become more apparent from following description, this main purpose and other purpose reach by the control device that is used for automatic reset apparatus, it is characterized in that: this control device comprises a plurality of electromechanical units, each described electromechanical units is electrically connected to going up mutually of electrical system, be connected on the actuating mechanism of microswitch described electromechanical units passive movement, this actuating mechanism is suitable for driving the electronic-controlled installation of homing device, and this electronic-controlled installation is associated with protective device in this system; Each described electromechanical units is independent of other unit operations, and be suitable for using by link to each other with this unit mutually in the electromagnetic field that produces of fault current, so that act on the described actuating mechanism, described actuating mechanism acts on the described microswitch, and this microswitch functionally is connected on the described electronic-controlled installation of described homing device.
Description of drawings
From the description of preferred but nonexcludability embodiment of the present invention, further feature and advantage will become more apparent, and these embodiment set forth by the non-limitative example with reference to the accompanying drawings, 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, usually the control device with Reference numeral 1 expression comprises the shell that is made of substrate 2, and this substrate 2 is by lid 3 sealings, and this lid 3 has at the bottom of the intermediate base of insertion 7.
7 form a plurality of bases 4 that are used for corresponding electromechanical units 5 at the bottom of substrate 2, lid 3 and the intermediate base, and this electromechanical units is associated with relevant terminal 6.
Microswitch 8 is activated by actuator lever 9, and this actuator lever 9 has a plurality of engaged with base 10 that are used for corresponding kinematic link mechanism 11.
Each kinematic link 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 that is made 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 contrast (contrast) by contrast spring 18.The prestrain of this contrast spring 18 is by adjusting screw(rod) 19 scalable, and is so that regulate the magnetic threshold value, as will be described below.
Each adjusting screw(rod) 19 can enter from the outside by corresponding opening 21, and this opening 21 is arranged in the substrate 2, and is equipped with connector 22.
Dynamo-electric assembly is connected on the relevant terminal 6 by two L shaped terminal body 20.
Microswitch 8 is connected on the card 23, and this card 23 is connected up to be connected with the outside.
According to the present invention, each electromechanical units is utilized the electromagnetic field that is produced by fault current.Each unit comprises two primary clusterings: i.e. first assembly that is made of two electromagnetic components, and actuating mechanism, wherein, described two electromagnetic components are fixedly core 15 and movable core 13, they are subjected to the influence by the electromagnetic field of fault current generation, and described actuating mechanism comprises actuator lever 9, linkage 11 and cross bar 12.
Make this movable electromagnetic component 13 motions by electromagnetic field and by the power that the interaction between Motionless electromagnetic parts and the movable electromagnetic component produces, this motion acts on the lever system that acts directly on the microswitch 8, this microswitch 8 functionally is connected on the electronic-controlled installation of homing device, and is invisible in the drawings.
Adopt this mode, this electronic-controlled installation detects the signal that is produced by microswitch 8, and has suppressed closing once more automatically of the protective device that is associated with homing device immediately.
This device, except reliable, cheap and be easy to make, can also reduce detection time of overcurrent fault in a large number, because the unlatching of this device and protective device starts synchronously.
Magnetic adjusting screw(rod) 19 can be implemented accurate the adjusting to the fault current threshold value that control device is started, thereby picks out any overload current value and short-circuit current value.
Also be separate, non-interfering between the functional failure of electromechanical detecting unit 5, therefore, on the actuating mechanism of inside, can not hinder mutually.
Under this mode, the combination of above-mentioned all faults can both detect by this control device, this control device can with the protective device of any kind (1P, 1P+N, 2P, 3P, 3P+N 4P) is associated.
In the practice, have been found that the present invention has reached above-mentioned purpose and other purpose 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 all is incorporated into herein as a reference.
Claims (9)
1. control device that is used for automatic reset apparatus, it is characterized in that: this control device comprises a plurality of electromechanical units, each described electromechanical units is electrically connected to going up mutually of electrical system, be connected on the actuating mechanism of microswitch described electromechanical units passive movement, this actuating mechanism is suitable for driving the electronic-controlled installation of homing device, and this electronic-controlled installation is associated with protective device in this electrical system; Each described electromechanical units is independent of other unit operations, and be suitable for using by be connected with this unit mutually in the electromagnetic field that produces of fault current, so that act on the described actuating mechanism, this actuating mechanism acts on the described microswitch, and this microswitch functionally is 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 device that is used 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: each described unit comprises parts that are made of two electromagnetic components and the mechanical part that is connected on the described actuating mechanism, described two electromagnetic components are fixed part and movable part, and they are subjected to the influence by the electromagnetic field of described fault current generation.
4. each described control device in the claim as described above, it is characterized in that: each described unit comprises the sheath that is made of folded sheet metal, this sheath comprises movable core, fixedly core, coil and bobbin.
5. each described control device in the claim as described above, it is characterized in that: described adjusting device comprises the contrast spring, this contrast spring and described movable core contrast effect, the prestrain of described spring are by the adjusting screw(rod) scalable, so that regulate the magnetic threshold value.
6. each described control device in the claim as described above, it is characterized in that: each described unit is connected on the relevant terminal by two L shaped terminal body.
7. each described control device in the claim as described above, it is characterized in that: described actuating mechanism comprises the actuator lever that is suitable for activating described microswitch, described actuator lever comprises a plurality of engaged with base that are used for corresponding kinematic link mechanism; Each described kinematic link mechanism is associated with the corresponding units of described unit by cross bar, and this cross bar is connected to the described movable core of dynamo-electric assembly on the described linkage.
8. each described control device in the claim as described above, it is characterized in that: this control device comprises the shell of being made up of substrate, this substrate is by closed with covers.
9. control device as claimed in claim 8 is characterized in that: described substrate comprises a plurality of bases that are used for described unit, and this base is associated with corresponding terminal by the 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 true CN101609969A (en) | 2009-12-23 |
| CN101609969B 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107481900A (en) * | 2016-06-08 | 2017-12-15 | 哥维斯股份公司 | Compact control module for automatic reset device |
Families Citing this family (5)
| 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 |
Family Cites Families (9)
| 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 |
| US3525956A (en) * | 1968-09-09 | 1970-08-25 | William M Poschman | Control apparatus for electrical circuit breaker |
| US6404314B1 (en) * | 2000-02-29 | 2002-06-11 | General Electric Company | Adjustable trip solenoid |
| FR2817078B1 (en) * | 2000-11-21 | 2003-02-14 | Hager Electro | REMOTE CONTROL DEVICE FOR MODULAR PROTECTION APPARATUS |
| 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. |
| 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 |
| 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
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107481900A (en) * | 2016-06-08 | 2017-12-15 | 哥维斯股份公司 | Compact control module for automatic reset device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2136383B1 (en) | 2018-06-27 |
| CN101609969B (en) | 2014-03-26 |
| EP2136383A3 (en) | 2013-06-26 |
| ES2683833T3 (en) | 2018-09-28 |
| EP2136383A2 (en) | 2009-12-23 |
| ITMI20081092A1 (en) | 2009-12-18 |
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