CN102543611A - Electrical protection device comprising the differential protection function - Google Patents
Electrical protection device comprising the differential protection function Download PDFInfo
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- CN102543611A CN102543611A CN2011104280898A CN201110428089A CN102543611A CN 102543611 A CN102543611 A CN 102543611A CN 2011104280898 A CN2011104280898 A CN 2011104280898A CN 201110428089 A CN201110428089 A CN 201110428089A CN 102543611 A CN102543611 A CN 102543611A
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- loop coil
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- disconnecting apparatus
- differential protection
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- 238000010891 electric arc Methods 0.000 claims abstract description 21
- 230000007935 neutral effect Effects 0.000 claims abstract description 13
- 238000004804 winding Methods 0.000 claims description 48
- 230000001681 protective effect Effects 0.000 claims description 15
- 238000005259 measurement Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000005192 partition Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 230000004907 flux Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 244000045947 parasite Species 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
- H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
- H01H83/226—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with differential transformer
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The apparatus e.g. bipolar modular differential circuit breaker (A), has phase and neutral disconnecting modules (1, 2) and a differential protection module (B) mounted on a rail. A core (6) is positioned within the protection module such that a center part of a coil is located between an axial plane of the core parallel to an initial direction of movement of electric arc and passing via a separation point of main contacts of one of the disconnecting modules, and another axial plane of the core located at 45 degrees with respect to the former plane from a side of a disconnecting chamber.
Description
Technical field
The present invention relates to a kind of electric protective equipment; It comprises the differential protection function; Said electric equipment comprises mutually and/or a neutral disconnecting apparatus and a differential protection at least, and said device lateral ground is arranged side by side and be assemblied on the identical mounting support thing such as guide rail for example, and each disconnecting apparatus comprises two main contacts and arc control device; Said main contact is closed and can under the situation that occurs accident on the circuit, open with interruptive current when the normal running of equipment; When said contact took place to separate, electric arc was disposed to said arc control device, and said differential protection comprises loop coil; Said loop coil extends in the plane that the orientation that is approximately perpendicular to each device is extended; The parallel axes of said toroidal opening is in the axis of the arrangement of each device, and said loop coil is designed to receive the winding that is called as elementary winding and the winding that is called as secondary fault current measurement winding of some, and the quantity of said elementary winding is corresponding to the quantity of electric disconnecting apparatus; Said elementary winding forms through the loop coil of winding around primary wires, and each primary wires is connected to the lead-out terminal of disconnecting apparatus the contact band of differential protection.
Background technology
Be known that the differential circuit breaker that comprises the circuit breaker that is associated with the differential protection module as this equipment.Circuit breaker is a kind of electromagnetism or electronic protection, and its function is through opening the main contact interruptive current of said circuit breaker when on circuit, accident taking place.It can interrupt overload current by means of the thermal tripping device, and interrupts short circuit current by means of magnetic tripping operation device.
The differential protection module is designed to taking place under the situation that abnormal current leaks to guarantee the protection to the people through tripping.This differential protection module comprises the magnetic circuit of coil form ringwise, the circuit that is called as secondary circuit that on said loop coil, is wound with the one or more phases that are called as main circuit and neutral circuit and constitutes the fault current magnetic test coil.
Under the situation that does not have leakage or remaining fault current, the magnetic flux that is generated by the main circuit coil cancels each other out, and does not take place whatever.If break down, then remaining fault current generates unbalanced magnetic flux in the main circuit coil, and magnetic flux in loop coil, occurs.Measuring coil is the base (seat) of electromagnetic energy, and said electromagnetic energy is supplied with and caused the release of circuit breaker and the electromagnet of opening of main contact thereof.
In case contact separates, electric arc is discharged into arc control device through the active force that is called as Laplce (Laplace) active force, and said Laplce's active force is that the geometry by fixed contact and moving contact causes.In the process of its stroke between contact and chamber, electric arc is directed between two cheeks, this increased it mass rate of emission, guide its path and elongate it.
In some cases, loop coil is positioned to tightly in the face of the arc extinguishing cup.Loop coil is provided with the primary coil that is wrapped on its periphery, and the horizontal neighbour of these coils locates to influence the open torque (influence of direction, application point, environment) of moving contact negatively and the progradation power to electric arc when electric arc occurs and in the cycle period of electric arc before cup discharging slightly.
This causes the hesitation and the stagnation of electric arc, and follow-up thermal stress increases.Therefore, obtain required disconnection performance, advantageously make the size of the utmost point bigger than normal.
Elimination can be between loop coil and circuit breaker, to add metallic shield by a skill of the negative effect that toroidal winding produces.Yet owing to be used to hold the have adequate thickness insufficient space of metallic shield of (thickness of 2mm at least), this solution can not be used to eliminate the negative effect of main circuit coil.At last, in industrial background, can not estimate must be by the cost of the optional feature of making and managing.
Summary of the invention
An object of the present invention is to improve electric current and break off, and prevent near the circuit breakers pole the destruction differential protection unit when being short-circuited.
For this purpose; An object of the present invention is to provide a kind of electric protective equipment; This equipment is characterised in that; If three direction of observations that continuous level limits that consideration is generally perpendicularly extended by the fixed pan with toroidal plane and equipment; Said plane comprises moving contact, fixed contact and arc control device successively respectively; Winding on the said loop coil is observed and is twined rule; This rule comprises, from the primary wires of the lead-out terminal output that is positioned to be electrically connected near fixed contact differential protection, that be called as the disconnecting apparatus of first disconnecting apparatus along counterclockwise being wrapped on the said loop coil, and from be positioned at the differential protection opposition side, be positioned in abutting connection with the primary wires that the lead-out terminal that fixed contact disconnecting apparatus, that be called as the disconnecting apparatus of second disconnecting apparatus that is called as first disconnecting apparatus is electrically connected is exported be wrapped in along clockwise direction on the said loop coil; Said toroidal opening is positioned to face the partition of the disconnecting apparatus that is called as first disconnecting apparatus that separates said differential protection; And in the face of being designed to receive the disconnection cup of electric arc; If lead-out terminal is electrically connected to movable lead, the above-mentioned direction of then twining around said loop coil is reverse; And said loop coil is positioned in the said differential protection; The toroidal axial plane that is called as first plane of being centered close to of the winding of winning and toroidal is called as between the axial plane on second plane; The said axial plane that is called as first plane be roughly parallel to electric arc discharging inceptive direction and pass through via at least one the burble point of main contact in the disconnecting apparatus, the said axial plane that is called as second plane belongs to a side at arc control device and locates at 45 ° with respect to first plane positioning.
Therefore, if lead-out terminal is connected to moving contact rather than fixed contact, then reciprocal winding direction is reverse.
According to a specific embodiment, said equipment is modular apparatus, each disconnecting apparatus and differential protection be configured in separately with the separable or inseparable module of other module in.
According to a concrete characteristic, loop coil is configured in the differential protection, makes toroidal axis extend along the direction of the orientation that is roughly parallel to module.
According to another feature, the burble point of the main contact that is associated with different disconnecting apparatuss respectively is positioned in the above-mentioned plane that is called as first plane.
According to another feature, it quantitatively is two that said electricity disconnection is contained in, and comprises phase failure device and neutral disconnecting apparatus.
According to another feature, said electric sub-module quantitatively is two, and comprises phase failure module and the neutral module of breaking off.
According to another feature, toroidal axis is approximately perpendicular to the sidewall of module.
According to another feature; Said equipment comprises at least two windings that are connected to two disconnecting apparatuss respectively; This equipment is characterised in that; The center of second winding is positioned to opposite with the center of first winding with respect to said toroidal axis, make these two windings be 180 ° of angle ground skews each other with respect to this axis.
According to another feature, in 45 ° of toroidal axial planes of locating of the axial plane written treaty that is called as first axial plane at the center that is centrally located in respect to comprise first winding of measurement winding.
Said differential protection is positioned at mutually and/or the left side or the right side of neutral disconnecting apparatus, if lead-out terminal is electrically connected to identical contact, then above-mentioned winding rule be applicable in the same manner above-mentioned configuration both.
According to another feature, said equipment is to comprise mutually and/or at least one the neutral disconnecting apparatus and the circuit breaker of differential protection.
According to another feature, said equipment is bipolar modular circuit breaker.
Description of drawings
Through with reference to the detailed description that is merely the accompanying drawing that the non-limiting example purpose provides, other advantage of the present invention and characteristic will become more cheer and bright from following, in the accompanying drawing:
Fig. 1 is the perspective view of the circuit breaker that is associated with the differential protection module of schematically illustrated prior art,
Fig. 2 be shown schematically in off period prior art respectively with the differential protection module be associated mutually with two neutral perspective views that break off modules,
Fig. 3 is the view that is similar to Fig. 1 that the circuit breaker that is associated with the differential protection module of a specific embodiment of the present invention is shown,
Fig. 4 is the view that is similar to Fig. 1 and 3 that the circuit breaker that is associated with the differential protection module of another embodiment of the present invention is shown,
Fig. 5 is the view that is similar to Fig. 2 in another embodiment of the present invention of off period,
Fig. 6 is the partial view at arc control device shown in the plane of the degree of depth that is parallel to equipment, main contact, loop coil and winding thereof, and
Fig. 7 is that illustrating around the unit of one of coil of toroidal axis is the diagram of the open torque of N.M for the angle position of degree to the unit of the moving contact on the y axle.
Embodiment
In Fig. 1,3 and 4, can see that double-pole cut-out A is engaged to differential protection module B via a side plate 3 in its side plate, this component design becomes to be assemblied on the same mounting support thing (not shown).This circuit breaker comprises two modules, be respectively be called as first break off the phase failure module 1 of module and be called as second break off module neutrality break off module 2.The lead-out terminal of circuit breaker A, prior art are 10,11 and device of the present invention is 14,15, are 12,13 by prior art being called as primary wires 7,8 to the present invention; 16,17; Lead with 18,19 through behind the loop coil 6, is electrically connected to the terminal 9 of differential protection module B.
Extend on this loop coil 6 plane along the side plate 3,4,5 that is parallel to each module in the differential protection module, and the axis X edge of each side plate is parallel to the longitudinal direction of fixed bearing thing and is parallel to the direction extension of the orientation of each module.
Therefore; According to prior art, as illustrated in fig. 1 and 2, be called as the lead of primary wires 7,8; One of them is a phase conductor and another is a neutral conductor; Face 6a via being arranged in the loop coil 6 of circuit breaker A same side inserts loop coil 6, then before inserting loop coil once more via aforementioned the same side around this loop coil, lead passes loop coil for the second time and leaves via the opposition side 6b of last side then; Lead is connected to the terminal connector band 9 of differential module B then, and said connection band 9 is designed to receive the lead-out terminal (not shown) of differential module B.
In this prior art embodiment; Along counterclockwise passing loop coil 6, and pass loop coil along clockwise direction from the primary wires 8 of terminal 11 outputs of the circuit breaker A that is arranged in the figure leftmost side from the primary wires 7 of terminal 10 outputs that are positioned at the first terminal right side.
According to present embodiment, wire rod is short as far as possible, and comprises minimum folding.There is not intersecting of wire rod between the output of terminal 10,11 and loop coil 6.
According to three embodiment of the present invention that illustrate respectively among Fig. 3,4 and 5; From be arranged in be called as second break off the disconnection module of module 12 the primary wires 13,17,19 of terminal 15 outputs be wound into along clockwise direction on the loop coil 6, and from be called as first break off module second lead 12,16,18 of terminal 14 outputs of disconnection module 1 along counterclockwise being wound on the loop coil 6.Therefore, according to the present invention, primary wires is reverse around the direction of rotation of loop coil 6 with respect to the direction of rotation with the corresponding primary wires of equipment of prior art.
According to embodiments of the invention shown in Figure 3; Primary wires 12,13 is inserted loop coil via the face 6a that is arranged in the loop coil 6 of circuit breaker A same side; Then around this loop coil; And then pass loop coil, then via leaving this loop coil with being positioned at the face 6b opposite with the face of circuit breaker same side.Therefore, in the present embodiment, wire rod intersects when leaving loop coil.But it should be noted that these wire rods can intersect between terminal 14,15 and toroidal output 6a.
According to embodiments of the invention shown in Figure 4; Primary wires 16,17 is inserted loop coil via toroidal 6b of the opposition side that is arranged in circuit breaker A; Then around this loop coil; And then pass loop coil, leave this loop coil via the face 6a that is positioned at the circuit breaker same side then, and be connected to the terminal connector band 9 of differential protection module B.In the present embodiment, wire rod is still intersecting of folding between terminal 14,15 and toroidal output 6a.
According to the embodiment of Fig. 5, primary wires 18,19 is inserted loop coil via toroidal being arranged in the face 6b of circuit breaker opposition side before being connected to the terminal connector band 9 of differential protection module, pass loop coil 6 then, and leave via another side 6a.
Also as shown in Figure 6 according to the present invention, toroidal axis X is configured to be approximately perpendicular to arc control device C.First winding 21 is configured on the loop coil 6, make its center 22 the first axial plane Q of the loop coil 6 that the burble point Y via contact of breaker 23,24 passes through and and the first plane Q form roughly between 45 ° the toroidal second axial plane R of angle [alpha].26 centers 22 with respect to first winding 21, the center of second winding 25 (waiting to illustrate) are positioned at the opposite position that makes progress, footpath, and measure the winding (not shown) and be positioned at the first elementary winding 21 and the second elementary winding and depart from the roughly position of 90 ° of angles.According to this specific embodiment, the nose that toroidal this first axial plane Q is a slave unit passes the plane of equipment to the fixed bearing thing and perpendicular to this support.
Therefore; According to the present invention, one of them winding 21 is positioned in the precise region in the face of the burble point of contact, and along realizing that the winding direction that generates magnetic field twines; This had both strengthened the electromagnetic force that acts on electric arc and had advanced electric arc towards arc control device, and the open torque of moving contact is increased.
Advantageously, toroidally be positioned to cut off 3 separating between as close as possible circuit breaker A and the differential protection module B, to reduce the distance between contact and the loop coil as far as possible at face 6a with circuit breaker A same side.So that the passage of magnetic field line (channelling) optimization, be easy to disturb toroidal magnetic field and any (screening type) hardware of being configured between this loop coil and the circuit breakers pole will be removed in order to use toroidal environment.Metal parts and lead in fact all have contribution to the complex feedback loop of magnetic field line, those that are particularly generated by the loop coil winding.
Like this, by means of the present invention, in case open (in case the circulation of electric arc takes place) of contact taken place, then during cup and arc control device discharged arc, the emission direction along electric arc towards arc control device breaks off the variant that generates progradation power on the electric arc.
When being short-circuited, circuit breaker no longer is easy to be damaged because of the magnetic field of the loop coil winding negative effect to electric arc.
In fact, if coil disposes with traditional approach as shown in Figure 1, then horizontal parasitic component (lateral parasite component) L increase factor 2 as shown in Figure 2, this has the effect that reduces propulsion component T.
On the contrary; If carry out in opposite direction according to coiling of the present invention with respect to industrial direction; Then this cross stream component L is offseted, and active force increases the propulsion component T of electric arc along the direction of arc control device subsequently, reaches optimum value in the recommended location corresponding to 45 ° of the maximum angles between above-mentioned first axial plane Q and the above-mentioned second axial plane R; As shown in Figure 7, it shows the gain that characterizes through the reverse winding acquisition of the present invention curve chart to the angle between above-mentioned two planes.In the figure; In fact can see when winding with respect to toroidal above-mentioned first axial plane with the different angles position configuration on toroidal periphery (with 25 ° step; With the positive and negative mode) time, obtained to appear the curve at the moment of torsion peak of the highly significant between 0 to 45 °.
Identical is following situation: have reverse winding and with first coil location in recommending the zone (being included in the angle between 0 to 45 °), multiply by factor 3 be applied to the open torque on the moving contact.
Therefore, according to the present invention, toroidal environment is used to make the passage optimization of magnetic field line, so that magnetic field line produces beneficial effect to electric arc and moving contact.
Compare with the solution of being made up of the shielded differential unit of outfit, disconnection is further improved.
In fact effect according to of the present invention has improved disconnection, and the solution with shielding just rebulids disconnection.The open torque of moving contact has been obtained the gain of factor 3, and obtained the counteracting of horizontal parasitic component, so gain is 100%.
The present invention never be confined to certainly describe and illustrated embodiment, they are purpose and providing as an example just.
On the contrary, the present invention may extend into all technical equivalents schemes that comprise described means and combination thereof, as long as their spirit according to the present invention obtains.
Claims (12)
1. electric protective equipment; Comprise the differential protection function, said electric equipment comprise at least mutually and/or the disconnecting apparatus and the differential protection of neutrality, said device lateral ground is arranged side by side and be assemblied on the identical mounting support thing such as guide rail for example; Each disconnecting apparatus comprises two main contacts and arc control device; Said main contact is closed and can under the situation that occurs accident on the circuit, open with interruptive current when the normal running of equipment, and when said contact took place to separate, electric arc was disposed to said arc control device; Said differential protection comprises loop coil; Said loop coil extends in the plane that the orientation that is approximately perpendicular to each device is extended, and the parallel axes of said toroidal opening is in the axis of the arrangement of each device, and said loop coil is designed to receive the winding that is called as elementary winding and the winding that is called as secondary fault current measurement winding of some; The quantity of said elementary winding is corresponding to the quantity of electric disconnecting apparatus; Said elementary winding forms through the loop coil of winding around primary wires, and each primary wires is connected to the lead-out terminal of disconnecting apparatus the contact band of differential protection
It is characterized in that; If three direction of observations that continuous level limits that consideration is generally perpendicularly extended by the fixed pan with toroidal plane and equipment; Said plane comprises moving contact, fixed contact and arc control device successively respectively; Winding on the said loop coil is observed and is twined rule; This rule comprises; From the primary wires (12,16,18) of lead-out terminal (14) output that is electrically connected with the fixed contact that is positioned near disconnecting apparatus differential protection, that be called as first disconnecting apparatus (1) along counterclockwise being wrapped on the said loop coil (6), and from be positioned at the differential protection opposition side, be positioned in abutting connection with the primary wires (13,17,19) that the lead-out terminal (15) that the fixed contact that is called as disconnecting apparatus disconnecting apparatus, that be called as second disconnecting apparatus (2) of first disconnecting apparatus is electrically connected is exported be wrapped in along clockwise direction on the said loop coil (6);
Said toroidal opening is positioned to face the partition (3) of the disconnecting apparatus that is called as first disconnecting apparatus (1) that separates said differential protection (B); And in the face of being designed to receive the disconnection cup (C) of electric arc; If lead-out terminal is electrically connected to movable lead, the above-mentioned direction of then twining around said loop coil is reverse;
And said loop coil (6) is positioned in the said differential protection; The center (22) that makes the winding of winning (21) is called as between the axial plane R on second plane at the toroidal axial plane Q that is called as first plane and toroidal; The said axial plane that is called as first plane be roughly parallel to electric arc discharging inceptive direction and pass through via the burble point Y of the main contact (23,24) of at least one disconnecting apparatus, the said axial plane that is called as second plane belongs to a side at arc control device and is positioned at 45 ° with respect to the first plane Q and locates.
2. electric protective equipment as claimed in claim 1 is characterized in that it is a modular apparatus, each disconnecting apparatus (1,2) and differential protection (B) be configured in separately with the separable or inseparable module of other module in.
3. according to claim 1 or claim 2 electric protective equipment is characterized in that said loop coil (6) is configured in the said differential protection (B), and the orientation that makes the axis (X) of said loop coil (6) be roughly parallel to module is extended.
4. like each described electric protective equipment among the claim 1-3, it is characterized in that the burble point (Y) of the main contact (23,24) that is associated with different disconnecting apparatuss (1,2) respectively is positioned on the above-mentioned plane that is called as first plane (Q).
5. like each described electric protective equipment in the aforementioned claim, it is characterized in that electric disconnecting apparatus (1,2) quantitatively is two, and comprise phase failure device and neutral disconnecting apparatus.
6. like each described electric protective equipment among the claim 2-5, it is characterized in that electricity breaks off module and quantitatively is two, and comprise phase failure module and the neutral module of breaking off.
7. like each described electric protective equipment among the claim 2-6, it is characterized in that the axis X of said loop coil (6) is approximately perpendicular to the side plate of module (3,4,5).
8. like each described electric protective equipment in the aforementioned claim; Comprise at least two windings (21,25) that are connected to two disconnecting apparatuss (1,2) respectively; Be characterised in that; The center (26) of second winding (25) is positioned to opposite with the center (22) of first winding (21) with respect to the axis X of said loop coil (6), make these two windings be 180 ° of angle ground skews each other with respect to this axis.
9. like each described electric protective equipment in the aforementioned claim; It is characterized in that, in 45 ° of toroidal axial planes of locating of the axial plane written treaty that is called as first axial plane (Q) at the center that is centrally located in respect to comprise first winding (21) (22) of measurement winding.
10. like each described electric protective equipment in the aforementioned claim; It is characterized in that; Said differential protection is positioned at mutually and/or the right side or the left side of neutral disconnecting apparatus; If lead-out terminal is electrically connected to identical contact, then above-mentioned winding rule is applicable in two above-mentioned configurations in the same manner.
11., it is characterized in that it is to comprise at least mutually and/or the differential circuit breaker of neutral disconnecting apparatus (A) and differential protection (B) like each described electric protective equipment in the aforementioned claim.
12. electric protective equipment as claimed in claim 11 is characterized in that, it is bipolar modular differential circuit breaker.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR10/04960 | 2010-12-20 | ||
| FR1004960A FR2969369A1 (en) | 2010-12-20 | 2010-12-20 | ELECTRICAL PROTECTION APPARATUS COMPRISING THE DIFFERENTIAL PROTECTION FUNCTION |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102543611A true CN102543611A (en) | 2012-07-04 |
| CN102543611B CN102543611B (en) | 2016-06-01 |
Family
ID=44317948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110428089.8A Active CN102543611B (en) | 2010-12-20 | 2011-12-20 | Electric protective equipment including differential protection function |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2466611B1 (en) |
| CN (1) | CN102543611B (en) |
| ES (1) | ES2428495T3 (en) |
| FR (1) | FR2969369A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167340A (en) * | 2013-05-20 | 2014-11-26 | 施耐德电器工业公司 | Circuit breaker |
| CN107148660A (en) * | 2014-11-14 | 2017-09-08 | 黑格电子股份有限公司 | Electromagnetic actuators with multiple windings |
| CN109427506A (en) * | 2017-08-25 | 2019-03-05 | 佛山市顺德区美的电热电器制造有限公司 | Pressure switch and electric pressure cooking saucepan |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3072462B1 (en) * | 2017-10-16 | 2020-05-22 | Schneider Electric Industries Sas | CURRENT MEASURING DEVICE, MANUFACTURING METHOD, PROTECTION MODULE AND DIFFERENTIAL CIRCUIT BREAKER USING SUCH A CURRENT MEASURING DEVICE |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0456585A1 (en) * | 1990-05-10 | 1991-11-13 | Merlin Gerin | Single-pole, neutral differential circuit breaker |
| CN101388309A (en) * | 2007-09-11 | 2009-03-18 | 施耐德电器工业公司 | Electric device with differential protection |
| CN101465249A (en) * | 2007-12-20 | 2009-06-24 | 施耐德电器工业公司 | Modular electric protection device comprising an additional electric function such as the differential protection function |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2627324B1 (en) * | 1988-02-16 | 1995-05-12 | Merlin Gerin | PASSIVE NEUTRAL DIFFERENTIAL CIRCUIT BREAKER |
| IE920641A1 (en) * | 1991-03-27 | 1992-10-07 | Westinghouse Electric Corp | Dual wound trip solenoid |
| FR2715517B1 (en) * | 1994-01-26 | 1996-03-22 | Merlin Gerin | Differential trip unit. |
| FR2752479B1 (en) * | 1996-08-13 | 1998-09-25 | Schneider Electric Sa | ELECTRONIC DIFFERENTIAL CIRCUIT BREAKER |
-
2010
- 2010-12-20 FR FR1004960A patent/FR2969369A1/en not_active Withdrawn
-
2011
- 2011-10-21 EP EP20110354057 patent/EP2466611B1/en active Active
- 2011-10-21 ES ES11354057T patent/ES2428495T3/en active Active
- 2011-12-20 CN CN201110428089.8A patent/CN102543611B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0456585A1 (en) * | 1990-05-10 | 1991-11-13 | Merlin Gerin | Single-pole, neutral differential circuit breaker |
| CN101388309A (en) * | 2007-09-11 | 2009-03-18 | 施耐德电器工业公司 | Electric device with differential protection |
| CN101465249A (en) * | 2007-12-20 | 2009-06-24 | 施耐德电器工业公司 | Modular electric protection device comprising an additional electric function such as the differential protection function |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167340A (en) * | 2013-05-20 | 2014-11-26 | 施耐德电器工业公司 | Circuit breaker |
| CN107148660A (en) * | 2014-11-14 | 2017-09-08 | 黑格电子股份有限公司 | Electromagnetic actuators with multiple windings |
| CN109427506A (en) * | 2017-08-25 | 2019-03-05 | 佛山市顺德区美的电热电器制造有限公司 | Pressure switch and electric pressure cooking saucepan |
| CN109427506B (en) * | 2017-08-25 | 2020-11-20 | 佛山市顺德区美的电热电器制造有限公司 | Pressure switch and electric pressure cooker |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2466611A1 (en) | 2012-06-20 |
| ES2428495T3 (en) | 2013-11-08 |
| FR2969369A1 (en) | 2012-06-22 |
| CN102543611B (en) | 2016-06-01 |
| EP2466611B1 (en) | 2013-07-24 |
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