WO2013136019A2 - Actionneur électromagnétique a impédance maîtrisée - Google Patents
Actionneur électromagnétique a impédance maîtrisée Download PDFInfo
- Publication number
- WO2013136019A2 WO2013136019A2 PCT/FR2013/050535 FR2013050535W WO2013136019A2 WO 2013136019 A2 WO2013136019 A2 WO 2013136019A2 FR 2013050535 W FR2013050535 W FR 2013050535W WO 2013136019 A2 WO2013136019 A2 WO 2013136019A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coils
- electromagnetic actuator
- limiting
- coil
- actuator according
- 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.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/20—Measuring number of turns; Measuring transformation ratio or coupling factor of windings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/72—Testing of electric windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/079—Measuring electrical characteristics while winding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/127—Assembling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/16—Rectilinearly-movable armatures
- H01F7/1638—Armatures not entering the winding
- H01F7/1646—Armatures or stationary parts of magnetic circuit having permanent magnet
Definitions
- the present invention relates to an electromagnetic actuator of the differential relay type, and relates to a method for controlling the impedance of such devices during industrial manufacture, that is to say in series.
- the actuator of the invention is a high sensitivity device, used in particular in the field of differential protection, when it is considered independently of the mains voltage.
- the actuators or differential relays used in industry or the tertiary sector are of different types in order to be able to meet the standards in force (differential products of type A, AC, G, S, etc.). Now, they are geometrically identical, ie the parts constituting them are the same, with the exception of the coil, whose number of turns and the section of the wire are adapted to each type of relay mentioned above. .
- This type of electromagnetic actuator conventionally comprises the following components:
- a fixed magnetic frame generally U-shaped, the ends of the two legs constitute two coplanar polar surfaces;
- a pallet of magnetic material capable of pivoting between two positions respectively at a distance, ie leaving a space with the armature and, in the armed position of the release, in contact with said polar surfaces, thereby closing the magnetic circuit constituted by said armature and said pallet, the point of rotation of the pallet being in the immediate vicinity of the end of one of the legs of the armature;
- a permanent magnet for polarization of the magnetic circuit arranged between the legs of the armature and creating a permanent magnetic force of attraction of the pallet towards the polar surfaces, magnetic force exerted against the restoring force of a spring ; an induction coil surrounding the magnetic circuit, connected for example to a circuit to be controlled, in order to modify the initial equilibrium between the magnetic force and the restoring force of the spring.
- the operating principle is the following: for example when a differential-order incident occurs in lines protected by the differential device, inducing a current in the wire of the coil, the flux created on this occasion in the circuit Magnetic actuator by the coil combines with the flux generated by the permanent magnet.
- the movement of the pallet causes that of a mechanical member, for example a rod, able to unlock the lock of a differential product placed near the electromagnetic actuator, so that said rod can act on a trigger.
- each relay is controlled and is classified according to its impedance in several classes.
- Each of these impedance classes is associated with a particular torus that is not oversized relative to the actuator with which it operates. The realization of such sorting is economically more interesting than the choice of a torus of larger volume.
- a well-known solution to act directly on the impedance would consist in a setting of said impedance by the magnet, the adjustment of the power then being done by the spring mounted on a screw.
- the disadvantage of this solution is that such an adjustment must be made once the differential product is assembled, and that the adjustment by the spring is long and difficult to set up in production, which makes this solution industrially inadequate.
- the coil can make it possible to vary rather simply the impedance of the relay, which becomes different from one type of relay to another if the coils are distinct in terms of the number of turns.
- the idea underlying the invention is to wind a number of turns which allows to achieve, with a small gap, a given impedance.
- a number of turns could be wound in all cases, which is known to represent a surplus of turns with respect to expected result, then unwind the exact number of turns to reach the desired impedance. Or to do the opposite with the initial winding of a number of turns obviously underestimated, followed by the winding of a number of additional turns resulting in the desired impedance.
- the pallet is closed and held in the closed position either by mechanical action on the actuating member, which echoes the action on the pallet and the plate against the armature, or by passage of a direct current in the induction coil, the continuous flow thus generated resulting in attracting the pallet to the contact of the magnetic armature, or by magnetization of the magnet which generates a magnetic flux capable of holding the relay in the closed position.
- the calculation can thus be based on two coils, respectively n turns and a turn, which are wound around adjacent zones the frame.
- n can then be equal to a number which amounts to using a kind of "dummy" coil unrealistic for real use, for measurement purposes, by example with 5 turns. It is this same "dummy" number that can be used when two reels are implemented.
- the number n can be much higher and represent a real winding, that is to say with a realistic number of turns for an actuator.
- the current used can take different forms, depending on the magnetization state of the permanent magnet, the means used to close and keep closed the pallet in contact with the frame etc.
- the current signal sent into the coil may be sinusoidal, or consist of a DC component and a sinusoidal component.
- the current signal sent into the coil may be sinusoidal, or consist of a DC component and a sinusoidal component.
- it can still be two current signals constituted in both cases of a DC component and a sinusoidal component.
- the actuator comprises a housing allowing the induction coil to be wound out of the housing around a branch of the armature, when said housing is closed on all other components.
- the exact winding can occur at the last moment, in the production line, on already pre-equipped boxes, on which it remains only to wind a number of turns given by the method of the invention, which guarantees a minimum variability of the impedance for almost identical products (with the exception of the number of turns of the coils).
- the impedance of such an actuator is in particular a function of the permanent magnet which equips it, besides it depends on the gap and the material of the magnetic circuit. If the impedance variations due to the permanent magnet are too high, the actuator may, in the context of the method of the invention, be arranged between Helmholtz coils during the realization of the steps a / to g / such that previously described.
- the impedance even if it is very much a function of the gap and the magnetic circuit material, also depends on the magnet, and in particular on its degree of magnetization.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Electromagnets (AREA)
- Relay Circuits (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201380020321.1A CN104246923B (zh) | 2012-03-16 | 2013-03-15 | 具有受控阻抗的电磁致动器 |
| IN1909MUN2014 IN2014MN01909A (fr) | 2012-03-16 | 2013-03-15 | |
| ES13715321.9T ES2587656T3 (es) | 2012-03-16 | 2013-03-15 | Actuador electromagnético con impedancia controlada |
| EP13715321.9A EP2826048B1 (fr) | 2012-03-16 | 2013-03-15 | Actionneur électromagnétique a impédance maîtrisée |
| AU2013234192A AU2013234192B2 (en) | 2012-03-16 | 2013-03-15 | Electromagnetic actuator having controlled impedance |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1252397 | 2012-03-16 | ||
| FR1252397A FR2988216B1 (fr) | 2012-03-16 | 2012-03-16 | Actionneur electromagnetique a impedance maitrisee |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2013136019A2 true WO2013136019A2 (fr) | 2013-09-19 |
| WO2013136019A3 WO2013136019A3 (fr) | 2013-12-19 |
Family
ID=48083500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2013/050535 Ceased WO2013136019A2 (fr) | 2012-03-16 | 2013-03-15 | Actionneur électromagnétique a impédance maîtrisée |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP2826048B1 (fr) |
| CN (1) | CN104246923B (fr) |
| AU (1) | AU2013234192B2 (fr) |
| ES (1) | ES2587656T3 (fr) |
| FR (1) | FR2988216B1 (fr) |
| IN (1) | IN2014MN01909A (fr) |
| PL (1) | PL2826048T3 (fr) |
| PT (1) | PT2826048T (fr) |
| WO (1) | WO2013136019A2 (fr) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2618941B1 (fr) * | 1987-07-28 | 1995-01-06 | Merlin Gerin | Declencheur electromagnetique a haute sensibilite et son procede de fabrication |
| FR2745913B1 (fr) * | 1996-03-11 | 1998-04-10 | Electricite De France | Dispositif et procede de controle d'un mecanisme equipe d'une bobine a noyau plongeur |
| US7054772B2 (en) * | 2003-09-30 | 2006-05-30 | Delphi Technologies, Inc. | Apparatus and method for monitoring and compensating for variation in solenoid resistance during use |
| WO2009018850A1 (fr) * | 2007-08-06 | 2009-02-12 | Siemens Aktiengesellschaft | Procédé de détermination de couplage de flux de dispersion magnétique d'un transformateur |
| CN101315836B (zh) * | 2008-06-17 | 2010-07-21 | 西安交通大学 | 电磁斥力系统和永磁系统相耦合的自适应操动机构 |
| CN101447365A (zh) * | 2008-12-19 | 2009-06-03 | 南京因泰莱配电自动化设备有限公司 | 一种单稳态永磁操动机构 |
| FR2943171B1 (fr) * | 2009-03-10 | 2011-04-08 | Hager Electro Sas | Actionneur electromagnetique a derivation de flux |
-
2012
- 2012-03-16 FR FR1252397A patent/FR2988216B1/fr active Active
-
2013
- 2013-03-15 ES ES13715321.9T patent/ES2587656T3/es active Active
- 2013-03-15 PL PL13715321.9T patent/PL2826048T3/pl unknown
- 2013-03-15 CN CN201380020321.1A patent/CN104246923B/zh not_active Expired - Fee Related
- 2013-03-15 EP EP13715321.9A patent/EP2826048B1/fr active Active
- 2013-03-15 AU AU2013234192A patent/AU2013234192B2/en not_active Ceased
- 2013-03-15 IN IN1909MUN2014 patent/IN2014MN01909A/en unknown
- 2013-03-15 PT PT137153219T patent/PT2826048T/pt unknown
- 2013-03-15 WO PCT/FR2013/050535 patent/WO2013136019A2/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| None |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2013234192B2 (en) | 2015-10-08 |
| FR2988216B1 (fr) | 2014-04-25 |
| FR2988216A1 (fr) | 2013-09-20 |
| WO2013136019A3 (fr) | 2013-12-19 |
| PL2826048T3 (pl) | 2016-11-30 |
| EP2826048A2 (fr) | 2015-01-21 |
| IN2014MN01909A (fr) | 2015-07-10 |
| CN104246923B (zh) | 2016-12-14 |
| PT2826048T (pt) | 2016-08-18 |
| ES2587656T3 (es) | 2016-10-26 |
| CN104246923A (zh) | 2014-12-24 |
| AU2013234192A1 (en) | 2014-10-23 |
| EP2826048B1 (fr) | 2016-05-11 |
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