CN102543611B - Electric protective equipment including differential protection function - Google Patents
Electric protective equipment including differential protection function Download PDFInfo
- Publication number
- CN102543611B CN102543611B CN201110428089.8A CN201110428089A CN102543611B CN 102543611 B CN102543611 B CN 102543611B CN 201110428089 A CN201110428089 A CN 201110428089A CN 102543611 B CN102543611 B CN 102543611B
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- Prior art keywords
- winding
- differential protection
- disconnection device
- loop coil
- protective equipment
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- 230000001681 protective effect Effects 0.000 title claims abstract description 23
- 238000004804 winding Methods 0.000 claims abstract description 52
- 238000010891 electric arc Methods 0.000 claims abstract description 21
- 230000003068 static effect Effects 0.000 claims abstract description 12
- 230000007935 neutral effect Effects 0.000 claims description 9
- 230000002441 reversible effect Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 5
- 230000004907 flux Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 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
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention discloses a kind of electric protective equipment including differential protection function. from be aligned closest to differential protection, it is referred to as the primary wires (12 that the lead-out terminal (14) of the static contact electrical connection of the disconnection device (1) of the first disconnection device exports, 16, 18) it is wrapped on loop coil (6) in the counterclockwise direction, and from be positioned at differential protection opposition side, it is positioned to the adjacent disconnection device being referred to as the first disconnection device, it is referred to as the primary wires (13 that the lead-out terminal (15) of the static contact electrical connection of the disconnection device (2) of the second disconnection device exports, 17, 19) it is wrapped in along clockwise direction on described loop coil (6). the center (22) of the first winding (21) is between toroidal axial plane Q and toroidal axial plane R, described axial plane Q is roughly parallel to the inceptive direction of the discharge of electric arc and passes through via the burble point Y of the main contact of at least one (23,24) disconnected in device, described axial plane R in arc-chutes side relative to the first plane positioning at 45 �� of places.
Description
Technical field
The present invention relates to a kind of electric protective equipment, it includes differential protection function, described electricity equipment at least includes disconnection device and a differential protection of phase and/or neutrality, described device lateral ground side by side and is assemblied on the identical installation supports such as such as guide rail, each disconnection device includes two main contacts and arc-chutes, described main contact is opened with interruptive current when closing when the normal operating of equipment and can occur accident on circuit, when described contact occurs to separate, electric arc is disposed to described arc-chutes, described differential protection includes loop coil, described loop coil extends in the plane that the orientation being approximately perpendicular to each device extends, the axis of described toroidal opening is parallel to the axis of the arrangement of each device, described loop coil is designed to receive a number of winding of armature winding and be referred to as the winding of secondary fail current measurement winding of being referred to as, the quantity of described armature winding is corresponding to the quantity of electrically disconnected device, described armature winding is formed around the loop coil of primary wires by winding, each primary wires will be switched off the lead-out terminal of device and is connected to the contact band of differential protection.
Background technology
As this equipment it is known that include the differential circuit breaker of the chopper being associated with differential protection module. Chopper is a kind of electromagnetism or electronic protection, by opening the main contact interruptive current of described chopper when its function is that accident occurs on circuit. It can interrupt overcurrent by means of thermal tripping device, and interrupts short circuit current by means of magnetic trip device.
Differential protection module is designed to guarantee the protection to people by carrying out tripping when there is abnormal current leakage. This differential protection module includes the magnetic circuit of coil form ringwise, is wound with the one or more phases and neutral circuit that are referred to as main circuit and constitutes the circuit being referred to as secondary circuit of fault current detection coil on described loop coil.
When not leakage or remaining fault current, main circuit coil the magnetic flux generated cancels each other out, and does not occur whatever. If it occur that fault, then remaining fault current generates unbalanced magnetic flux in main circuit coil, and occurs magnetic flux in loop coil. Measuring coil is the base (seat) of electromagnetic energy, and the supply of described electromagnetic energy causes the unblock of chopper and the electromagnet opened of main contact thereof.
Once contact separates, electric arc is discharged into arc-chutes by being referred to as the active force of Laplce (Laplace) active force, and described Laplce's active force is to be caused by the geometry of static contact and moving contact. In the process of its stroke between contact and room, electric arc is directed between two cheeks, which increases its mass rate of emission, guides its path and elongate it.
In some cases, loop coil is positioned to tight in the face of arc extinguishing cup. Loop coil is provided with the primary coil being wrapped on its periphery, and the horizontal neighbour place of these coils affect negatively moving contact open torque (direction, apply the impact of point, environment) and from electric arc occur and at electric arc to progradation power to electric arc during cup discharge circulation slightly before.
This hesitation causing electric arc and stagnation, and follow-up thermal stress increase. Therefore, required disconnection performance to be obtained, it is advantageous that the size making pole is bigger than normal.
The skill eliminating the negative effect produced by toroidal winding may be in interpolation metallic shield between loop coil and chopper. But, owing to having the insufficient space of the metallic shield of adequate thickness (at least the thickness of 2mm) for accommodation, this solution cannot be used for eliminating the negative effect of main circuit coil. Finally, the cost of the optional feature that must be manufactured and manage can not be estimated in industrial background.
Summary of the invention
It is an object of the invention to improve electric current disconnect, and prevent the circuit breakers pole destroyed when being short-circuited near differential protection unit.
For this purpose, it is an object of the present invention to provide a kind of electric protective equipment, this equipment is characterised by, if it is considered that the direction of observation that three continuous levels extended substantially vertically by the fixed pan with toroidal plane and equipment limit, described plane includes moving contact successively respectively, static contact and arc-chutes, winding on described loop coil is observed and is wound around rule, this rule includes, from be aligned closest to differential protection, the primary wires of the lead-out terminal output being referred to as the static contact electrical connection disconnecting device of the first disconnection device is wrapped on described loop coil in the counterclockwise direction, and from be positioned at differential protection opposition side, it is positioned to the adjacent disconnection device being referred to as the first disconnection device, the primary wires of the lead-out terminal output being referred to as the static contact electrical connection disconnecting device of the second disconnection device is wrapped on described loop coil along clockwise direction, described toroidal opening is positioned to face the partition disconnecting device being referred to as the first disconnection device separating described 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 wire, then the above-mentioned direction being wound around around described loop coil is reverse, and described loop coil is positioned in described differential protection, the first winding is made to be centrally located between the toroidal axial plane being referred to as the first plane and the toroidal axial plane being referred to as the second plane, the described axial plane being referred to as the first plane is roughly parallel to the inceptive direction of the discharge of electric arc and passes through via the burble point of the main contact of at least one disconnected in device, described in be referred to as the axial plane of the second plane in arc-chutes side relative to the first plane positioning at 45 �� of places.
Therefore, if lead-out terminal is connected to moving contact rather than static contact, then reciprocal winding direction is reverse.
According to a specific embodiment, described equipment is modular apparatus, and each disconnection device and differential protection are individually configured in separable with other module or inseparable module.
According to a specific features, loop coil is arranged in differential protection so that toroidal axis extends along the direction of the orientation being roughly parallel to module.
According to another feature, the burble point of the main contact being associated from different disconnection devices respectively is positioned in the above-mentioned plane being referred to as the first plane.
According to another feature, described electrically disconnected being contained in is quantitatively two, and includes disconnected phase device and neutral disconnection device.
According to another feature, described electricity sub-module is quantitatively two, and includes disconnected phase module and neutral disconnection module.
According to another feature, toroidal axis is approximately perpendicular to the sidewall of module.
According to another feature, described equipment includes being respectively connecting to two at least two windings disconnecting device, this equipment is characterised by, the center of the second winding becomes contrary with the center of the first winding relative to described toroidal axis location so that the two winding is relative to the angularly skew 180 �� each other of this axis.
According to another feature, measure being centrally located in the toroidal axial plane into about 45 �� of places of the axial plane being referred to as the first axial plane relative to the center comprising the first winding of winding.
Described differential protection is positioned at the left side disconnecting device or the right side of phase and/or neutrality, if lead-out terminal is electrically connected to identical contact, then above-mentioned winding rule is applicable to above-mentioned both configurations in the same manner.
According to another feature, described equipment is the chopper of at least one disconnection device and the differential protection including phase and/or neutrality.
According to another feature, described equipment is bipolar modules formula chopper.
Accompanying drawing explanation
In the detailed description of the accompanying drawing provided from below by reference is only non-limiting example purpose, the further advantage of the present invention and feature will be apparent from understanding, in accompanying drawing:
Fig. 1 is the perspective view of the chopper being associated with differential protection module schematically showing prior art.
Fig. 2 is the phase being associated with differential protection module respectively of the prior art during being shown schematically in disconnection and neutral two perspective views disconnecting modules.
Fig. 3 is the view being similar to Fig. 1 of the chopper being associated with differential protection module illustrating a specific embodiment of the present invention.
Fig. 4 is the view being similar to Fig. 1 and 3 of the chopper being associated with differential protection module illustrating another embodiment of the present invention.
Fig. 5 is the view being similar to Fig. 2 of the another embodiment of the present invention during disconnecting.
Fig. 6 is the partial view of arc-chutes, main contact, loop coil and winding thereof shown in the plane of the degree of depth being parallel to equipment.
Fig. 7 is the angle position of the unit degree of being illustrating one of the coil around the toroidal axis diagram to the open torque that unit is N.M of the moving contact in y-axis.
Detailed description of the invention
At Fig. 1, in 3 and 4, it can be seen that double-pole cut-out A engages to differential protection module B via a side plate 3 in its side plate, and this assembly is designed to fit within same installation support (not shown). This chopper includes two modules, and the disconnected phase module 1 being respectively referred to as the first disconnection module and the neutrality being referred to as the second disconnection module disconnect module 2. The lead-out terminal of chopper A, prior art is 10,11 and assembly of the invention is 14,15, is 12,13 by prior art is referred to as primary wires 7,8 to the present invention; 16,17; Wire with 18,19, after by loop coil 6, is electrically connected to the terminal 9 of differential protection module B.
This loop coil 6 extends along the plane of the side plate 3,4,5 being parallel to each module in differential protection module, and the axis X of each side plate extends along the direction of the longitudinal direction being parallel to fixed bearing thing and the orientation that is parallel to each module.
Therefore, according to prior art, as illustrated in fig. 1 and 2, it is referred to as primary wires 7, the wire of 8, one of them is phase conductor and another is neutral conductor, loop coil 6 is inserted via the face 6a of the loop coil 6 being arranged in chopper A same side, then via aforementioned the same side again insertable into loop coil front ring around this loop coil, then wire second time is left through loop coil the opposition side 6b via front side, then wire is connected to the terminal connector band 9 of differential module B, described connection band 9 is designed to receive the lead-out terminal (not shown) of differential module B.
In the prior art embodiment, the primary wires 8 exported from the terminal 11 of the chopper A being arranged in the figure leftmost side passes loop coil 6 in the counterclockwise direction, and from the primary wires 7 of terminal 10 output being positioned on the right side of the first terminal along clockwise direction through loop coil.
According to the present embodiment, wire rod is short as far as possible, and includes minimal amount of folding. It is absent from intersecting of wire rod between terminal 10,11 and the output of loop coil 6.
According to Fig. 3, three embodiments of the present invention of being shown respectively in 4 and 5, it is wound into along clockwise direction on loop coil 6 from the primary wires 13,17,19 of terminal 15 output being arranged in the disconnection module being referred to as the second disconnection module 12, and the second wire 12,16,18 exported from the terminal 14 of the disconnection module 1 being referred to as the first disconnection module is wound into loop coil 6 in the counterclockwise direction. Therefore, according to the present invention, primary wires is reverse around the direction of rotation of the direction of rotation of loop coil 6 primary wires corresponding relative to the equipment of prior art.
Embodiments of the invention according to Fig. 3, primary wires 12,13 inserts loop coil via the face 6a of the loop coil 6 being arranged in chopper A same side, it is then wrapped around this loop coil, and then through loop coil, then leave this loop coil via with being positioned at the face 6b contrary with the face of chopper same side. Therefore, in the present embodiment, wire rod is crossing when leaving loop coil. It is noted that these wire rods can intersect between terminal 14,15 with toroidal output 6a.
Embodiments of the invention according to Fig. 4; primary wires 16,17 inserts loop coil via toroidal 6b of the opposition side being arranged in chopper A; it is then wrapped around this loop coil; and then traverse loop coil; then leave this loop coil via the face 6a being positioned at chopper same side, and be connected to the terminal connector band 9 of differential protection module B. In the present embodiment, wire rod is folding between terminal 14,15 with toroidal output 6a but does not intersect.
Embodiment according to Fig. 5, primary wires 18,19, before the terminal connector band 9 being connected to differential protection module, is inserted loop coil via the toroidal face 6b being arranged in chopper opposition side, is then passed through loop coil 6, and leave via another side 6a.
According to the present invention and as shown in Figure 6, toroidal axis X is configured to be approximately perpendicular to arc-chutes C. First winding 21 is arranged on loop coil 6 so that its center 22 via the burble point Y of contact of breaker 23,24 loop coil 6 passed through the first axial plane Q and and the first plane Q formed substantially 45 �� angle [alpha] toroidal second axial plane R between. The center 26 of the second winding 25 (to be shown) is then positioned at radially contrary position relative to the center 22 of the first winding 21, and measures winding (not shown) and be positioned at and the position of the first armature winding 21 and the second armature winding substantially 90 �� of angles of deviation. According to this specific embodiment, toroidal this first axial plane Q to fixed bearing thing and is perpendicular to this support plane through equipment from the nose of equipment.
Therefore, according to the present invention, one of them winding 21 is positioned in the precise region of the burble point of contact, and is wound around along the winding direction that can realize generating magnetic field, this had both enhanced the electromagnetic force acting on electric arc and had advanced electric arc towards arc-chutes, and the open torque of moving contact can be made again to increase.
Advantageously, toroidal be positioned to the face 6a of chopper A same side as far as possible near between chopper A with differential protection module B separating partition 3, to reduce the distance between contact and loop coil as far as possible. In order to use toroidal environment so that passage (channelling) optimization of magnetic field line, it is easy to disturb toroidal magnetic field any (screening type) hardware of being arranged between this loop coil and circuit breakers pole to be removed. Actually all there is contribution in the complex feedback loop of magnetic field line by metal parts and wire, those particularly generation by loop coil winding.
So, by means of the present invention, once what contact occurred opens (once circulation of electric arc occurs), then in the period to cup and arc-chutes discharged arc, disconnect, along electric arc towards the emission direction of arc-chutes, the variant generating progradation power on electric arc.
When a short circuit occurs, chopper is no longer prone to because the negative effect of electric arc is damaged by the magnetic field of loop coil winding.
If it is true that coil configures with traditional approach as shown in Figure 1, then horizontal parasitic component (lateralparasitecomponent) L increases factor 2 as shown in Figure 2, and this has the effect reducing propulsion component T.
On the contrary, if carrying out the winding according to the present invention in opposite direction relative to industry direction, then this cross stream component L is offseted, electric arc is increased subsequently by active force along the propulsion component T in the direction of arc-chutes, optimum is reached in the recommended location corresponding to the maximum angle 45 �� between above-mentioned first axial plane Q and above-mentioned second axial plane R, as it is shown in fig. 7, it illustrates the curve chart characterizing the gain obtained by the reverse winding of the present invention to the angle between above-mentioned two plane. In the figure, in fact it can be seen that work as winding and be arranged on toroidal periphery (with the step of 25 �� relative to toroidal above-mentioned first axial plane with Difference angles, in positive and negative mode) time, it is thus achieved that present the curve at the moment of torsion peak of highly significant between 0 to 45 ��.
Identical being the case that has the open torque being applied on moving contact that reverse winding first coil being positioned at recommends (angle including between 0 to 45 ��) in region, that be multiplied by factor 3.
Therefore, according to the present invention, toroidal environment is used to make the passage optimization of magnetic field line, so that electric arc and moving contact are produced beneficial effect by magnetic field line.
Compared with the solution being made up of the shielded differential unit of outfit, disconnection is further improved.
The effect of the field according to the present invention actually improves disconnection, and has shielded solution and simply re-establish disconnection. The open torque of moving contact obtaining the gain of factor 3, and also obtains the counteracting of horizontal parasitic component, gain is then 100%.
The present invention is not limited to described and diagram embodiment certainly, and they are intended only as example purpose and provide.
On the contrary, the present invention may extend into all technical equivalents schemes including described means and combination thereof, obtain as long as they are the spirit according to the present invention.
Claims (12)
1. an electric protective equipment, including differential protection function, described electric protective equipment at least include mutually and/or neutral disconnection device and differential protection, described disconnection device and differential protection are laterally arranged side by side and are assemblied on same installation support, each disconnection device includes two main contacts and arc-chutes, described main contact is opened with interruptive current when closing when the normal operating of electric protective equipment and can occur accident on circuit, when described main contact occurs to separate, electric arc is disposed to described arc-chutes, described differential protection includes loop coil, described loop coil extends in the plane that the orientation being approximately perpendicular to described disconnection device and differential protection extends, the axis of described toroidal opening is parallel to the axis of the arrangement of described disconnection device and differential protection, described loop coil is designed to receive a number of winding of armature winding and be referred to as the winding of secondary fail current measurement winding of being referred to as, the quantity of described armature winding is corresponding to disconnecting the quantity of device, described armature winding is formed around primary wires by winding, each primary wires will be switched off the lead-out terminal of device and is connected to the contact band of differential protection,
It is characterized in that, at the direction of observation that three continuous levels extended substantially vertically by the fixed pan with toroidal plane and electric protective equipment limit, described three continuous levels include moving contact successively respectively, static contact and arc-chutes, winding on described loop coil is observed and is wound around rule, this winding rule includes, from be aligned closest to differential protection, it is referred to as the primary wires (12 that the lead-out terminal (14) of the static contact electrical connection of the disconnection device (1) of the first disconnection device exports, 16, 18) it is wrapped on described loop coil (6) in the counterclockwise direction, and from be positioned at differential protection opposition side, it is positioned to the adjacent disconnection device being referred to as the first disconnection device, it is referred to as the primary wires (13 that the lead-out terminal (15) of the static contact electrical connection of the disconnection device (2) of the second disconnection device exports, 17, 19) it is wrapped on described loop coil (6) along clockwise direction,
Described toroidal opening is positioned to face the partition (3) of the disconnection device (1) being referred to as the first disconnection device separating described differential protection (B), and in the face of being designed to receive the disconnection cup (C) of electric arc, when be referred to as the static contact of disconnection device (1) of the first disconnection device electrical connection lead-out terminal (14) and be referred to as the second disconnection device disconnection device (2) static contact electrically connect lead-out terminal (15) be electrically connected to movable wire time, then the direction being wound around around described loop coil is reverse;
And described loop coil (6) is positioned in described differential protection, the center (22) making the first winding (21) is positioned between the toroidal axial plane (Q) being referred to as the first plane and the toroidal axial plane (R) being referred to as the second plane, the described axial plane (Q) being referred to as the first plane is roughly parallel to the inceptive direction of the discharge of electric arc and disconnects the main contact (23 of device via at least one, 24) burble point (Y) passes through, the described axial plane being referred to as the second plane in arc-chutes side relative to the first plane positioning at 45 �� of places.
2. electric protective equipment as claimed in claim 1; it is characterized in that; described electric protective equipment is modular apparatus, and each disconnection device (1,2) and differential protection (B) are individually configured in separable each other or inseparable module.
3. electric protective equipment as claimed in claim 2; it is characterized in that; described loop coil (6) is arranged in described differential protection (B) so that the axis (X) of described loop coil (6) is roughly parallel to the orientation of described module and extends.
4. electric protective equipment as claimed in claim 1 or 2; it is characterized in that, the burble point (Y) of the main contact (23,24) being associated from different disconnection devices (1,2) respectively is positioned on the above-mentioned axial plane (Q) being referred to as the first plane.
5. electric protective equipment as claimed in claim 1 or 2, it is characterised in that disconnect device (1,2) and be quantitatively two, and include disconnected phase device and neutral disconnect device.
6. electric protective equipment as claimed in claim 2, it is characterised in that modular apparatus is quantitatively two, and include disconnected phase module and neutral disconnection module.
7. electric protective equipment as claimed in claim 2, it is characterised in that the axis (X) of described loop coil (6) is approximately perpendicular to the side plate (3,4,5) of described module.
8. electric protective equipment as claimed in claim 1 or 2; including at least the first winding (21) and the second winding (25) that are respectively connecting to the first disconnection device (1) and the second disconnection device (2); it is characterised by; the center (26) of the second winding (25) is positioned to contrary with the center of the first winding (21) (22) relative to the axis of described loop coil (6) (X) so that the two winding is relative to axis (X) the angularly skew 180 �� each other of described loop coil (6).
9. electric protective equipment as claimed in claim 1 or 2; it is characterized in that, secondary fail current measurement winding be centrally located in relative to the center (22) comprising the first winding (21) the axial plane being referred to as the first plane into about 45 �� place toroidal axial plane in.
10. electric protective equipment as claimed in claim 1 or 2; it is characterized in that; described differential protection is positioned at the right side disconnecting device or the left side of phase and/or neutrality; when the lead-out terminal (14) electrically connected with the first disconnection device (1) and the lead-out terminal (15) electrically connected with the second disconnection device (2) are electrically connected to identical contact, then the both on the right side disconnecting device or left side that above-mentioned winding rule is positioned at phase and/or neutrality suitable in above-mentioned differential protection in the same manner configures.
11. electric protective equipment as claimed in claim 1 or 2, it is characterised in that described electric protective equipment is at least to include mutually and/or the neutral differential circuit breaker disconnecting device (A) and differential protection (B).
12. electric protective equipment as claimed in claim 11, it is characterised in that described electric protective equipment is bipolar modules formula 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 CN102543611A (en) | 2012-07-04 |
| CN102543611B true 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) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167340B (en) * | 2013-05-20 | 2017-04-26 | 施耐德电器工业公司 | Circuit breaker |
| FR3028663B1 (en) * | 2014-11-14 | 2016-12-16 | Hager-Electro Sas | ELECTROMAGNETIC ACTUATOR WITH MULTIPLE COILS |
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2466611A1 (en) | 2012-06-20 |
| ES2428495T3 (en) | 2013-11-08 |
| FR2969369A1 (en) | 2012-06-22 |
| EP2466611B1 (en) | 2013-07-24 |
| CN102543611A (en) | 2012-07-04 |
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