CN1745443A - Method and device for determining the remaining service life of a switchgear - Google Patents
Method and device for determining the remaining service life of a switchgear Download PDFInfo
- Publication number
- CN1745443A CN1745443A CN 200380109535 CN200380109535A CN1745443A CN 1745443 A CN1745443 A CN 1745443A CN 200380109535 CN200380109535 CN 200380109535 CN 200380109535 A CN200380109535 A CN 200380109535A CN 1745443 A CN1745443 A CN 1745443A
- Authority
- CN
- China
- Prior art keywords
- contact
- armature
- pushing force
- moment
- switching device
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/0062—Testing or measuring non-electrical properties of switches, e.g. contact velocity
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/0015—Means for testing or for inspecting contacts, e.g. wear indicator
-
- 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
- H01H71/04—Means for indicating condition of the switching device
- H01H2071/044—Monitoring, detection or measuring systems to establish the end of life of the switching device, can also contain other on-line monitoring systems, e.g. for detecting mechanical failures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/08—Indicators; Distinguishing marks
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Keying Circuit Devices (AREA)
Abstract
In a switchgear, the switching contacts of a switchgear mechanism (100) are set to the on position or the off position, wherefore pressure is generated by the contact force spring in order to apply the pre-determined contact force in the on position. The service life of one such switchgear is determined by the erosion of switching contacts and by the mechanical wear of the switchgear mechanism. It is known that the switching contact erosion can be determined by detecting the change in pressure in the drive of the switchgear, According to prior art, the change in pressure is always measured during the switching-off process. According to the invention, the pressure change is detected during the switching-on process, and especially the mechanical wear of the switchgear can be simultaneously determined. The inventive device comprises a magnetic drive (100) consisting of an armature (110), a yoke (101) and magnetising coils (102, 102'), a position transmitter (120) being coupled to the magnetic armature (110) in a positively engaging manner.
Description
The present invention relates to a kind of by the described method that is used for determining a switching device residual life of claim 1 preamble.In addition, the invention still further relates to a kind of by claim 10 relevant device as described in the preamble.
For the functional reliability of switchgear importantly, understand the residual life of contact,, for example avoid job failure by changing contact for contactor so that in time take maintenance measure.Be the time sequencing of analyzing during the disconnection process by known method so far.For contactor, especially air contactor, develop a kind of method and be used to discern the residual life that causes because of contact burning, wherein, open (characterizing) by measuring at armature and to disconnect time interval between (characterizing) with contact, to determine contact burning and thereby mensuration residual life by contact pitch voltage occurring by coil voltage internal characteristic curve peak value.
As the alternative criterion of judging contact burning, the method that especially described detection pushing force changes has obtained protection in European patent EP 0694937B1.In EP0878016B1, EP0878015B1 and EP1002325B1, introduced the method for specialized application in switching device.Wherein unlimitedly in the disconnection process, that is by electromagnetic gear cut-off switch contact the time, detect pushing force and change, specifically determine the ablation on switch contact thus, and thereby the residual life of definite switch.
Set out thus, the purpose of this invention is to provide a kind of method and relevant equipment, wherein, except contact burning, the band of can also holding concurrently is under certain conditions considered the wearing and tearing of switching mechanism.In addition, can also connect motion with detected measured value monitoring and control.
Above-mentioned purpose reaches by the described feature of claim 1 characteristic of the present invention in the method as described in the preamble by claim 1 a kind of.A kind of relevant equipment then is provided in claim 10.According to further developing of method of the present invention and relevant device is the content of dependent claims.
In the connection process, carry out specially by the detection that the present pushing force of the present invention changes, just by the electromagnetic gear close switch contact time, carry out.In relevant equipment, connect a position transducer contiguously by the power transmission on the armature at electromagnetic gear for this purpose.
More advantageously, not only contact burning can be considered as the parameter of main definite switching device residual life, but also can attach the wearing and tearing of switching mechanism is also taken into account by the present invention.Especially doing like this when switch is vacuum contactor can be significant.This is because of contact travel bigger (reaching 10mm) in air contactor, and therefore because the gap that each moving component wearing and tearing causes in the switching mechanism, precentagewise does not almost have any deal, and it can become a deal of can not ignore in vacuum contactor.
Cause the latter's reason to be, compare the contact travel less (below 2mm) in vacuum switch with air switch, therefore can wear phenomenon occur in places such as pivot points easily by contact closure power, described contact closure power can only turn to device with the power transmission to apply by the lever realizable force by switching mechanism and one and produce.
By the accompanying drawing illustrated embodiment other details of the present invention and advantage are described in detail below.In the accompanying drawing:
Fig. 1 represents to be used for calculating in the connection process curve chart of contact closure position;
Fig. 2 represents to be used for electromagnetic gear and position transducer of a switching device;
Fig. 3 represents the concrete structure that is used for determining each position position transducer constantly shown in Figure 2;
Fig. 4 represents to be used for determining each position of air contactor contact closure position x constantly
3, x
3neuThe specific design for structure shown in Figure 3; And
Fig. 5 represents to be used to calculate the flow chart in the contact life-span of determining a switching device.
The method that is used for determining the switch contact residual life that the following describes, mainly comprise armature and/or predetermined discontinuous position and the definite speed of these parts on these precalculated positions and (on average) acceleration of switch transmission device predetermined member of detecting the contactor transmission device by the time, will carry out position measurement described parts.The connection moment and the definite contact closure position that comprise measurement switch contact during the switch contact closing motion in addition with respect to these detected discontinuous positions.
For this reason, Fig. 1 schematically illustrates the stroke-time graph 1 of a member of switching device, the stroke of this member is consistent with contact travel, but the stroke of this member also can or pass through a constant coefficient or passes through a predetermined function and contact travel logic association on mathematics.
In order to determine that residual life detects at least four moment, one of them, t for example
3, the expression contact closure constantly, and other, t for example
1, t
2And t
4The position moment of representing one or more position transducers.These in constantly at least two, for example t
1And t
2, can be the time value of two close positions, pass through formula by them
V＝(x
2-x
1)/(t
2-t
1) (1)
Can derive the velocity amplitude of member.Because monitored member is implemented acceleration movement usually during the connection process, so except speed V, at least one time interval
Δ t=t for example
4-t
1Or Δ t=t
4-t
2
Determine the mean value of a constant acceleration.By determined speed and accekeration, and by the position transducer the relative position of each other and their the position moment, can be for contact closure moment t
3Determine the position of closed contact by the simple mathematical relation.
Determine the position x of the stroke distances terminal that speed is used in expression
2With the position x that is positioned at along the member closing direction behind the contact closure position
4Between that still ignorant contact closure position be unknown.Obviously, position x
1With x
4Between stroke distances select narrowly more, contact closure position x
3Can determine accurately more.In ideal conditions, position x
1And x
4Be chosen as, make their sure will being included between them because of the contact closure position that contact and/or mechanism wear change, simultaneously the stroke distances between them but can be not significantly poor greater than contact closure position when the contact life-span begins and finishes.
For completing place/time detecting provides multiple diverse ways, to further describing the structure of switch transmission device below this.
Fig. 2 represents a kind of known magnetic drive that is used for a switching device, and it indicates with 100 generally.It is made up of E shape yoke and solenoid and armature in the known manner.
At the switch shown in Fig. 2 for example is a contactor.It can be an air contactor, but can be a vacuum contactor equally, in the hinged more complicated of back one situation underdrive device on contactor motion contact.
Fig. 2 represents yoke with 101, adorn on the yoke 101 two exciting solenoids 102 and 102 '.The pole-face of yoke with 103 and 103 ' represent.For yoke 101 sets an armature 110, it is attracted by yoke during by magnetic excitation coil when electromagnetic gear.
Fig. 2 represents the full open position of armature 110.Bearing 130 that is used for motion contact 141 of installing on the armature, bearing 130 can vertically move in Fig. 2.When transmission device was connected motion, motion contact 141 was placed in the make position with fixed contact 151.
The opposite side and the armature 110 power transmission that face yoke at armature among Fig. 2 are equiped with a position transducer 120 contiguously.This position transducer 120 is mainly used in the position moment of detecting regulation when armature motion, will elaborate to this in other accompanying drawings.
Fig. 3 represents a kind of concrete form of implementation of electromagnetic gear and position transducer 120, and its advantage is its accuracy simple, firm and when detecting the precalculated position.As seen from Figure 3, the predetermined quantity that position to be detected is arranged be can design and three positions that is (x to be substantially exceeded
1, x
2And x
4) minimum.Position transducer 120 is designed to cylindrical bar, and it leans against on the armature 110 with the spring force pressure of appropriateness by a spring 125 and can move in a relevant shell.In the off-state of electromagnetic gear 100, position transducer 120 abuts on the armature 110, so position transducer has acceleration force along with motion also acts on thereon when armature 110 is done the connection motion, but does not have impulsive force.The cylindrical outer surface of position transducer is divided into a plurality of conductions and nonconducting surface section vertically.Because the external diameter of all surface section is consistent and they are not connected to each other with demarcating seam, be a smooth periphery of forming by conduction that replaces vertically and non-conductive segmentation so people obtain.
A this conductive segments can for example be the becket of a good conductive, and its height for example can be 1mm or littler.The detection of position can by some outside contact elements therewith the electrical contact of becket connect and to carry out.
Low-level in order to remain by the friction mechanical wear that cause between contact element and the ring, contact is connected and can be replaced sliding dragging contiguously and realize with the contact of rolling.Connect a measuring circuit on this measuring contacts, it derives a voltage signal (on/off) by activation signal (on/off).If for example the instantaneous closing speed value of member is 1m/s, then measuring contacts provides the moment of the commutation pulse wavefront (Schaltflanken) of voltage signal through the high becket of 1mm the time, and it has 1 millisecond the time interval.That is to say and to extract a time signal at each section boundaries place of surface section.Therefore the rectangular voltage signal of an alternation is provided by the position transducer 120 of Fig. 3, and it is in time with to skim over the electrically conductive signal that the cylindrical outer surface segmentation produces at the measuring contacts place consistent.
Fig. 4 has bridge-type bearing 130 corresponding to connector 40 and armature 110 that Fig. 3 represents air contactor at a side position sensor 120 of armature 110 with at opposite side.The motion parts and the member thereof of connector are installed on bridge-type bearing 130.Specifically, touching one of bridge 140 and motion contact 141,141 ' be contained in has on the spring shell 160 of bearing 161, wherein, touches bridge 140 and rests on the bridge-type bearing 130 by contact force spring 165 when contact disconnects.By this device, motion contact 141,141 ' can with respect to be fixed on contact bearing 150,150 ' on fixed contact 151,151 ' move and being placed in disconnect or make position.Here contact force spring 165 produces the pushing force of contact force and armature and the make position decision spring that touches bridge.
Draw decision position t constantly by Fig. 4
1To t
4Geometrical relationship, wherein adopt the Reference numeral identical with Fig. 3.Determine importantly that in this relation at contact be sensing station x under the new state
3neuAnd used sensing station x under the state at contact
3Represented tick lables x in addition
1(t
1), x
2(t
2) and x
4(t
4).Contact design for around cylindrical position transducer 120 touch the ring 122 to 124 or 125,125 '.Also can meet the demands for surface 121 coatings of position transducer 120.
In order to determine the position of contact when the contact closure, need neighbour's position x
1With x
2Between speed and x
1With x
4Between average acceleration.Press following formula for this reason
V＝(x
2-x
1)/(t
2-t
1) (1)
x
4-x
1＝v*(t
4-t
1)+0.5*b
m*(t
4-t
1)
2 (2.1)
b
m＝2/(t
4-t
1)*((x
4-x
1)/(t
4-t
1)-(x
2-x
1)/(t
2-t
1)) (2.2)
Thereby for contact closure position x
3Obtain
x
3-x
1＝v*(t
3-t
1)+0.5*b
m*(t
3-t
1)
2 (3.1)
x
3-x
1＝(x
2-x
1)/(t
2-t
1)*(t
3-t
1)+((x
4-x
1)/(t
4-t
1)-(x
2-x
1)/(t
2-t
1))*(t
3-t
1)
2/(t
4-t
1)(3.2)
Obviously, only need measured t time of contact for the change of calculating the contact closure position
iDifference and known positional value poor.Therefore need not do the adjustment on the space in order to determine the absolute position value.
Under contact is new state, connects time value constantly by a microprocessor based on the time value of the measured member position of position transducer and contact and calculate stroke (x under the new state
3-x
1)
NeuBecause contact wearing and tearing and the mechanical wear that may add, people obtain a stroke (x when switch is worked
3-x
1) actual value.
For example pass through the poor (x of the stroke of calculating here in the wearing and tearing of mm
3-x
1)-(x
3-x
1)
NeuProvide.When contact burning, this difference is corresponding to the pushing force reduction value that reduces to cause because of contact thickness.If also cause pushing force further to reduce because the wearing and tearing of the mechanical-force-transmission part of switch transmission device are additional, it is measured that then the pushing force that causes because of mechanical wear reduces also together the part that reduces to be worth as whole pushing force, and this is because contact and transmission component are in power transmission contact condition when the connection campaign of quickening.
Fig. 5 is by flowcharting computational methods.Each step 201 is self-explantory to 212 basically: 201 and 202 by starting with to the preset of switch sensing data set by step, determines t constantly in step 205
2, t
3And t
4Can calculate output valve x in corresponding step thus
3(t
3) and x
1(t
1) or difference x
3-x
1By this difference (x
3-x
1)
Neu-(x
3-x
1), 210 draw current pushing force variation set by step.211 end-of-lifes with pushing force variation and judgement contact interrelate set by step, and the execution of 212 termination routines set by step when satisfying predetermined condition.If not this situation is then returned step 203,204,205 redefine t set by step
1, t
2And t
3Step 206 or 208 provides and forms x
3-x
1The check problem of mean value.
After arriving the contact end of life and the new contact of packing into, at definite at the beginning currency (x of a new life cycle
3-x
1)
Neu, this value has been implied with the current state of wear of switching mechanism in fact.In each follow-up life cycle, guarantee reliable judgement thus to the contact wearing and tearing.
Particularly advantageous further developing of said method is the speed adjustment of transmission device: for the transmission device of adjustable speed, especially the contactor transmission device of forming by an adjustable electromagnetic gear, can utilize the speed V that records by described position transducer, so that transmission device is iterated the predetermined speed of adjusting to, maybe with this speed limit in a predetermined number range.For this reason, along with each connection transmission device, all the time with a predetermined parameters stepping spacing with Control Parameter to higher velocity attitude adjustment, as long as this speed is also less than rated value or be under the rated range; Perhaps adjust Control Parameter,, or be on the rated range as long as speed is also greater than rated value towards less velocity attitude.Realize that thus contact is the speed closure to be scheduled to after finishing the speed adjustment.
A kind of replacement scheme as said method is to determine two moment t by the order of described connection process earlier
BeginnAnd t
Ende, calculate residual life then thus.Its implication is:
t
Beginn=on coil, apply the moment of voltage, at this,
-or considered the phase place of voltage for the development that detects different power,
-or adopt a kind of synchronized phase control mode method of accessing that helps;
t
Ende=detection contact closure, measuring contacts spacing voltage for this reason.
An outstanding advantage is that the method can be used on existing contactor.Certainly, need to detect the shape of voltage or detect the zero crossing of controlling voltage with an ac/dc (A/D) transducer for this reason.
For according to moment t
BeginnAnd t
EndeObtain the connection stroke, but utilize the stroke-time graph predetermined and that experience is determined of electromagnetic gear shown in Figure 1.Change by compare the connection stroke of obtaining under the user mode with new state, direct tolerance or proportional tolerance of a relevant contact varied in thickness just can be provided.
As the replacement scheme of said method, be the moment t that determines two other orders by the process of connection earlier
BeginnAnd t
Ende, and calculate residual life thus.These measured parameter value are defined as follows:
t
BeginnThe moment of=contact closure, measuring contacts spacing voltage for this reason;
t
Ende=detect a travel point, this detection or
-electromagnetic system carries out when closed, at this moment, for example measures by applying a voltage, measures a yoke-armature motion and a voltage null value, perhaps exists
-be installed in a switch on the described electromagnetic system or arbitrary distance of run point carries out when going up.
According to the stroke-time graph of the electromagnetic gear that provides by experiment shown in Figure 1, determine the pushing force value of contact force spring, and determine the pushing force variation that relates to wearing and tearing in the variation under the user mode based on this pushing force.The advantage of this method is to implement by detecting some time tags simply.Yet, for the method may need to change contactor construction and thereby a kind of new structural design of needs.
In first kind of substituting selection scheme, a kind of favourable design of relevant transmission device speed adjustment is carried out as follows: by a plurality of position rings on a position transducer, measure stroke when can be implemented in armature motion and make switch closure reach an almost constant speed by the control electromagnetic force.Not only optimize the switch motion thus, but also as much as possible reduce to cause the mechanical movement part that the power of wearing and tearing takes place.
Claims (19)
1. method that is used for determining a switching device residual life, this switching device has switch contact, they are placed on-position or open position by a switching mechanism, wherein, produce a pushing force in order to apply a predetermined contact force at on-position by a contact force spring, and, life-span of this switching device is on the one hand by the scaling loss of switch contact with determined by the mechanical wear of switching mechanism on the other hand, wherein, by detecting the scaling loss situation that can especially determine described switch contact in the variation of pushing force described in the transmission device of this switching device, it is characterized by:
-in the connection process of switching device, detect pushing force to change; And
-change the scaling loss of the definite switch contact of one side and the mechanical wear of determining switching mechanism on the other hand in the connection process by detecting pushing force.
2. in accordance with the method for claim 1, it is characterized by:, determine the precalculated position of each moving component in the switching mechanism of this switching device in time in order to detect pushing force.
3. in accordance with the method for claim 1, it is characterized by: in order to detect pushing force, determine the speed and/or the acceleration of each moving component in the described switching mechanism on the one hand, and the connection moment of during the closing motion of switch contact, measuring described switch contact.
4. according to the described method of above-mentioned each claim, it is characterized by: the speed of in described connection process, adjusting described moving component.
5. according to the described method of above-mentioned each claim, it is characterized by: have one or more position transducers, determine the moment of at least three relevant three positions by them.
6. it is characterized by in accordance with the method for claim 5: the closing speed of determining one/a plurality of contacts by two positions wherein and the relevant moment.
7. it is characterized by in accordance with the method for claim 5: by constantly determining the increase of described closing speed or reduce in the 3rd of the 3rd position.
8. according to the described method of above-mentioned each claim, it is characterized by: according to contact closure Time Calculation contact position.
9. it is characterized by in accordance with the method for claim 8: determine the variation of described pushing force according to the change of contact position.
10. an enforcement is according to the equipment of the described method of one of claim 1 to 9, wherein, described switching device is a contactor, described motion contact is placed by the armature of an electromagnetic gear of being made up of armature, yoke and solenoid and is switched on or switched off the position, it is characterized by: go up power at armature (110) and transmit ground and connect a position transducer (120).
11., it is characterized by: go up the annular contact (122 to 124) that existence is used to locate at described position transducer (120) according to the described equipment of claim 10.
12., it is characterized by: on described position transducer (120), be provided with the touch roll (125) that is used to depend on ground, position contact closure according to the described equipment of claim 11.
13. according to the described equipment of claim 12, it is characterized by: described position transducer is designed to cylindrical bar (120), and its cylindrical outer surface (121) is divided into a plurality of conductions and nonconducting surface section (122-124) vertically.
14., it is characterized by: can be according to the contact closure moment (t by described position transducer according to the described equipment of above-mentioned each claim
3) derive contact with respect to sensing station (x
1, x
2, x
4) a relative position (x
3), according to itself and one newly the value (x
3neu) change compared can determine contact burning.
15., it is characterized by: according at user mode and new state (x according to the described equipment of claim 14
3neu) under contact relative position (x
3) can determine residual life.
16. according to the described equipment of one of claim 10 to 15, it is characterized by: this equipment has the device that is used to calculate and indicate described switching device residual life.
17. according to the described equipment of claim 16, it is characterized by: described calculating and indicating device comprise a computer, at its store memory one stroke-time graph are arranged.
18., it is characterized by: by detecting the armature motion (t zero hour when connecting according to the described equipment of claim 17
Beginn) and in the connection process detection contact closing moment (t
Ende), can determine closing stroke according to described predetermined stroke-time graph; And, the variation that can calculate contact thickness according to the change of this closing stroke, wherein the variation of contact thickness is corresponding with scaling loss.
19., it is characterized by: according to the described contact closure moment (t according to the described equipment of claim 17
Beginn) and the moment (t of a predetermined armature position
Ende), can determine a part of armature travel by described predetermined stroke-time graph, can derive the variation of the pushing force of described contact force spring according to the change of this part armature travel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10260249.2 | 2002-12-20 | ||
| DE2002160249 DE10260249B4 (en) | 2002-12-20 | 2002-12-20 | Method and device for determining the remaining service life of a switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1745443A true CN1745443A (en) | 2006-03-08 |
| CN100413004C CN100413004C (en) | 2008-08-20 |
Family
ID=32667529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003801095352A Expired - Fee Related CN100413004C (en) | 2002-12-20 | 2003-12-17 | Method and device for determining the remaining service life of a switchgear |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1573761B1 (en) |
| CN (1) | CN100413004C (en) |
| DE (2) | DE10260249B4 (en) |
| WO (1) | WO2004057634A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256288A (en) * | 2017-07-13 | 2019-01-22 | 施耐德电器工业公司 | Electrical switchgear and method for detecting associated wear |
| CN112109643A (en) * | 2020-09-14 | 2020-12-22 | 东风汽车有限公司 | Automotive interior component and car |
| CN113232887A (en) * | 2021-05-19 | 2021-08-10 | 中航西安飞机工业集团股份有限公司 | Mechanical life test bed and test method for retractable switch of undercarriage |
| CN114203481A (en) * | 2022-02-16 | 2022-03-18 | 晟望电气有限公司 | Vacuum circuit breaker on post |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004062266A1 (en) * | 2004-12-23 | 2006-07-13 | Siemens Ag | Method and device for safe operation of a switching device |
| DE102005045095A1 (en) * | 2005-09-21 | 2007-04-05 | Siemens Ag | A method for determining the burnup of contacts of an electromagnetic switching device and electromagnetic switching device with a device operating according to this method |
| FR2891392B1 (en) * | 2005-09-23 | 2009-03-20 | Schneider Electric Ind Sas | DEVICE FOR NEUTRALIZING AN ELECTRICAL DEVICE SWITCH |
| DE102008048828A1 (en) * | 2008-09-22 | 2010-04-08 | Siemens Aktiengesellschaft | Method for determining stroke of two actuating elements driven by drive element, involves determining position of drive element, when actuating element is arranged in predetermined position |
| FR2945661A1 (en) | 2009-05-18 | 2010-11-19 | Schneider Electric Ind Sas | EVALUATION OF THE WEAR OF CONTACTS ENFONCES BY THE VARIATION OF THE ROTATION OF THE TREE OF POLES |
| EP2290666B1 (en) * | 2009-08-27 | 2015-08-12 | Siemens Aktiengesellschaft | Auxiliary module with lifespan monitoring for electromagnetic switching devices and accompanying method |
| FR3011673B1 (en) | 2013-10-08 | 2015-12-11 | Schneider Electric Ind Sas | SWITCHING DEVICE AND METHOD FOR DETECTING A FAULT IN SUCH A SWITCHING DEVICE |
| GB201803422D0 (en) * | 2018-01-16 | 2018-04-18 | Eaton Intelligent Power Ltd | Contactor with contact carrier location sensing |
| US10763659B2 (en) * | 2019-01-29 | 2020-09-01 | Arc Suppression Technologies | Power contact fault clearing device |
| DE102020124802A1 (en) * | 2020-09-23 | 2022-03-24 | Te Connectivity Germany Gmbh | Circuit arrangement and method for measuring a position of a contact bridge in a circuit arrangement |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3925722A (en) * | 1972-05-01 | 1975-12-09 | Gen Electric | Wear indicator for vacuum circuit interrupter |
| JPH0276427U (en) * | 1988-08-11 | 1990-06-12 | ||
| DE4427006A1 (en) * | 1994-07-29 | 1996-02-01 | Siemens Ag | Method for determining the remaining service life of contacts in switchgear and associated arrangement |
| DE19603319A1 (en) * | 1996-01-31 | 1997-08-07 | Siemens Ag | Method for determining the remaining service life of contacts in switchgear and associated arrangement |
| DE19544926C1 (en) * | 1995-12-01 | 1997-04-30 | Siemens Ag | Method and device for monitoring the erosion of the contact pieces in a switching device |
| DE19603310A1 (en) * | 1996-01-31 | 1997-08-07 | Siemens Ag | Method for determining the remaining service life of contacts in switchgear and associated arrangement |
| DE19734224C1 (en) * | 1997-08-07 | 1999-02-04 | Siemens Ag | Method and device for determining switchgear-specific data on contacts in switchgear and / or for determining company-specific data in the network connected with it |
| DE19915978A1 (en) * | 1999-04-09 | 2000-10-12 | Abb Patent Gmbh | Method for measuring contact wear of power switch of medium or high voltage by comparing of distance S1 to contact point of movable contact piece with initial contact of current and target time diagram |
| DE10028559C1 (en) * | 2000-06-09 | 2001-11-22 | Siemens Ag | Electromagnetic switching device, used as contactor, comprises contact with fixed contact pieces and moving contact bridge |
-
2002
- 2002-12-20 DE DE2002160249 patent/DE10260249B4/en not_active Expired - Fee Related
-
2003
- 2003-12-17 DE DE50307262T patent/DE50307262D1/en not_active Expired - Lifetime
- 2003-12-17 WO PCT/DE2003/004173 patent/WO2004057634A1/en active IP Right Grant
- 2003-12-17 CN CNB2003801095352A patent/CN100413004C/en not_active Expired - Fee Related
- 2003-12-17 EP EP03785582A patent/EP1573761B1/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256288A (en) * | 2017-07-13 | 2019-01-22 | 施耐德电器工业公司 | Electrical switchgear and method for detecting associated wear |
| CN112109643A (en) * | 2020-09-14 | 2020-12-22 | 东风汽车有限公司 | Automotive interior component and car |
| CN113232887A (en) * | 2021-05-19 | 2021-08-10 | 中航西安飞机工业集团股份有限公司 | Mechanical life test bed and test method for retractable switch of undercarriage |
| CN113232887B (en) * | 2021-05-19 | 2023-03-14 | 中航西安飞机工业集团股份有限公司 | Mechanical life test bed and test method for retractable switch of undercarriage |
| CN114203481A (en) * | 2022-02-16 | 2022-03-18 | 晟望电气有限公司 | Vacuum circuit breaker on post |
| CN114203481B (en) * | 2022-02-16 | 2022-04-26 | 晟望电气有限公司 | Vacuum circuit breaker on post |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1573761A1 (en) | 2005-09-14 |
| WO2004057634A1 (en) | 2004-07-08 |
| CN100413004C (en) | 2008-08-20 |
| DE50307262D1 (en) | 2007-06-21 |
| EP1573761B1 (en) | 2007-05-09 |
| DE10260249B4 (en) | 2005-07-28 |
| DE10260249A1 (en) | 2004-08-12 |
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