CN102349128B - Power distribution system - Google Patents
Power distribution system Download PDFInfo
- Publication number
- CN102349128B CN102349128B CN201080011259.6A CN201080011259A CN102349128B CN 102349128 B CN102349128 B CN 102349128B CN 201080011259 A CN201080011259 A CN 201080011259A CN 102349128 B CN102349128 B CN 102349128B
- Authority
- CN
- China
- Prior art keywords
- switch contact
- switch
- power switch
- trigger
- current
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/2418—Electromagnetic mechanisms combined with an electrodynamic current limiting mechanism
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit
- H01H2071/124—Automatic release mechanisms with or without manual release using a solid-state trip unit with a hybrid structure, the solid state trip device being combined with a thermal or a electromagnetic trip
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/2463—Electromagnetic mechanisms with plunger type armatures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/42—Induction-motor, induced-current, or electrodynamic release mechanisms
- H01H71/43—Electrodynamic release mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/44—Automatic release mechanisms with or without manual release having means for introducing a predetermined time delay
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
- H01H71/68—Power reset mechanisms actuated by electromagnet
Abstract
The invention relates to a power distribution system having at least one circuit breaker upstream, from the perspective of the power supply, and at least one circuit breaker downstream that have at least one movable switch contact (2) conducting current that contacts a related fixed switch contact (1) by force and in the case of a short-circuit type current rise of current dynamically created magnetic forces is raised thereby, wherein one arc is created between each of the two switch contacts (1, 2), the current is effective in a limiting manner, having a catch mechanism (9) that holds the movable switch contact (2) in place from the reaching of a specified opening angle (w) and having a selective trigger (6) for triggering the related circuit breaker upon exceeding a specified criterion. In order to attain a power selective circuit breaker that can also be used for larger rated currents and has a long service life, according to the invention there is an actuator (7) that can be triggered by the selective trigger (6) that activates the catch mechanism (9) to release the movable switch contact (2) when the criterion is exceeded.
Description
Technical field
The present invention relates to having of a kind of preamble according to claim 1 be arranged on front and arrange the energy distribution system of posterior power switch.
Background technology
Be known in energy distribution adopt power switch and allow these power switchs in a short-circuit situation selectivity disconnect, that is arranging preceding power switch should the only just triggering when not arranging the branch road that posterior power switch can be separated involved by short circuit.Each power switch has moveable switch contact, and these switch contacts are in operation and are flow through by electric current.These moveable switch contacts have mostly been applied in elastic force and have kept being pressed against on affiliated fixing switch contact by this elastic force.Described electric current is so directed by switch contact, electric current is dynamically produced in a short-circuit situation, is namely separated the magnetic force of described switch contact when electric current increase is very steep, wherein moveable switch contact promotes (abheben) from fixing switch contact.At this, formed between switch contact with resistance to resist the electric arc of current flowing, this is associated with to the restriction of electric current.Known making in addition locks (verrasten) moveable switch contact, with fixing described moveable switch contact when reaching predetermined open-angle.In addition, each power switch all has trigger (overload and short circuit trigger), and this trigger triggers when exceeding predetermined threshold.The latching device that the triggering of power switch opens all switch contacts by thread off (Entklinken) carries out.
The power switch that Limited Current can realize minor structure is carried out by electric arc, and by this apparatus design to less short-circuit current level.
Specifically, when the compact switch of Limited Current for the behavior being realized by so-called energy selectivity the electric current being less than 630A selecting.At this, current-on contact dynamically promotes at the lifting boundary place determining size, and wherein the selection trigger of mechanical realization just carries out reacting and trigger power switch on predetermined threshold.Such as be used as threshold value (firing level) with the switch-box pressure of arc energy equivalence.Under this threshold value, do not trigger after lifting switch contact, and switch contact applies due to elastic force and closes, thus power switch is in again on-state and is optionally thus.The moveable switch contact of locking is responsible for by stop mechanical device (Fangmechanismus) for switch contact, to protect power switch when switch power is very high.Prevent switch contact from closing too soon thus, and contact is stayed open until carried (Mitnahme) by the latching device be triggered.The keyed end of described stop mechanical device must constructively be coordinated with selecting the threshold value of trigger at this, thus ensures clear and definite on off state.Described selection trigger also reacts when described stop mechanical device activates respectively.When the power switch that energy is selected, trigger is selected just to react at dynamic opening or after dynamically closing.Therefore power switch triggering and thus defencive function lingeringly carry out so that contact system can until threshold value time open and close, and not trigger.
The power switch with the selection of time of the rated current being greater than 630A is accordingly dimensioned such size, and multiple half-waves of short circuit current can be flow through, and not breakdown power switch.This makes it possible to wait the reaction to be arranged on front power switch respectively and only optionally disconnect when needed.
When being greater than the rated current of 630A, energy selectivity, namely limiting behavior and selectivity by dynamic current, to disconnect the combination formed be unknown.This is because the relatively high power conversion in the inertia of contact system and power switch, this mostly dynamic opening and closed time cause the welding of switch contact.
Summary of the invention
Task of the present invention is the power switch that a kind of energy of suggestion is selected, and this power switch also can use when larger rated current and have the long life-span.
This task is solved by the feature of claim 1; Dependent claims is favourable expansion scheme.
This solution specifies, arranging can by the actuator selecting trigger to trigger, and when not being above standard, this actuator operation stop mechanical device is to discharge moveable switch contact.
A simple solution regulation, uses predetermined threshold value as standard.
If described actuator discharges described stop mechanical device respectively after predetermined time of delay, then draw improvement.
As technical simplification suggestion, the triggering of power switch is undertaken by described actuator.
Threaded off with the latching device of trigger power switch by described actuator if power switch has, then draw another advantage.
In the simple execution mode of one, described stop mechanical device has interlock (Verklinkung).
Therefore invention thought is, by dynamic opening, switch contact that can be chain combines with the actuator that passing threshold triggers again.Therefore utilize the present invention to eliminate following shortcoming, the switch contact namely for the power switch and dynamic opening that are greater than the rated current of 630A welds, and its mode is, prevents described switch contact from closing again immediately.Moveable switch contact can highly dynamically be opened and chain (verklinken), and selects trigger and actuator to be responsible for only having when switch contact is thermally-stabilised, just permits Closing Switch contact when namely having occurred solidifying again.Therefore, if make decision closed in selection situation, then switch contact is not in liquid liquation, but falls the contact geometry of again having solidified in shape.So the welding of two switch contacts is possibility no longer, and power switch can normally continue to run.Therefore, power switch of the present invention to can be designed as when being greater than the high rated current of 630A also Limited Current, however still energy selectively switch.Can be designed for the branch road of less short circuit current thus, this is with the less diameter of equipment with low cost in this branch road etc., circuit and be associated to the better protection of whole device.
The triggering of actuator is carried out in the two directions according to suitable mode.
Accompanying drawing explanation
In more detail the present invention is described by accompanying drawing below.Wherein:
Fig. 1 illustrates the schematic diagram of the closed power switch with moveable and fixing switch contact, and
Fig. 2 illustrates the power switch opened according to Fig. 1.
Embodiment
Fig. 1 illustrates the subregion of power switch with schematic diagram, this power switch belongs to energy distribution system, this energy distribution system comprises at least two power switchs, and one in described power switch is arranged on front and at least one power switch from energy feed-in and is arranged on rear (not shown).
Power switch in Fig. 1 comprises contact system, that described contact system can be configured to singly to refer to and that also have many fingers and dual rotary with translation.This contact system has at least one fixing switch contact 1 and moveable switch contact 2, and this switch contact 2 can deflect around axle 3.Switch contact 2 is close on switch contact 1 by spring 4 with applying power.Detect by current sensor 5 and flow through the electric current of switch contact 1,2 and the current value detected is fed to and selects trigger 6, this selection trigger 6 calculates affiliated energy value and compares with energy threshold (standard as predetermined).Select trigger 6 operations actuator 7 under triggering situation, this actuator 7 can move by selecting trigger 6 according to be drawn into double-head arrow up and down at this.
When moving down, actuator 7 operates the rocking handle 8 of stop mechanical device 9.And rocking handle 10 is operated when moving up, this rocking handle 10 makes latching device 11 thread off.Rocking handle 8,10 swingingly can be placed around swinging axle 8a, 10a respectively.
In a short-circuit situation, the magnetic force that the electric current flowing through current contact 1,2 causes electric current dynamically to produce, is repelled mutually by this magnetic force current contact 1,2.At this, moveable current contact 2 promotes from fixing current contact 1, and the current contact 2 that is in Fig. 1 upwards swings, as shown in Figure 2.
Fig. 2 illustrates further, and stop mechanical device 9 fixes (chain) switch contact 2 when reaching predetermined open-angle w by rocking handle 8, and prevents from thus returning swing.Therefore, the contact system that is made up of two switch contacts 1,2 is designed to dynamic opening at this, and chain when opening switch contact 2.Rocking handle 10 is triggered when exceeding energy threshold by the operation (moving up in fig. 2) by actuator 7 by the energy value selecting trigger 6 to determine, namely latching device is chain released, and switch contact 1,2 is opened by the full phase of the switch shaft of latching device 11, also namely this latching device 11 disconnects power switch.
The electric arc formed between described switch contact 1,2 when opening switch contact 1,2 causes current limit.
If such as cause not exceeding energy threshold because this arranges posterior power switch or of arranging in posterior power switch disconnects, then actuator 7(moves down in fig. 2) trigger rocking handle 8, namely operate stop mechanical device 9, wherein this stop mechanical device discharges moveable switch contact 2 again.This causes switch contact 2 to be closed and closed power switch due to the elastic force of spring 4.So power switch is connected at this and is optionally.
Therefore, also to use when larger rated current and the power switch selected of the energy with the long life-span to obtain, the switch contact 2 that suggestion electric current is dynamically opened, this switch contact is chain when opening.Be moved in two positions by energy threshold by the actuator 7 selecting trigger 6 to trigger, and the closed of switch contact 1,2 can be realized thus or open.Power switch is so sized, and makes switch contact 1,2(refer to all single switch contacts under system situation more) open from dynamically (by Hall nurse (Holm) power and Lorentz (Lorenz) power) in a short-circuit situation.Stop mechanical device 9 is at its contact arm of open position interlock switch contact 2().This reliably realizes when power switch >630A, because promoting the magnetic force on boundary (under 1000A switch conditions >15kA peak value) so greatly, make to reach (contact system) open-angle w completely.Realize current limit very fast in a short-circuit situation thus.Select trigger 6(machinery or electronically) identify " size " of short circuit and determine whether it must optionally trigger.This such as realizes by the energy changed in power switch, pressure or On current.If exceed defined firing level (such as energy threshold), then occur to actuator 7(such as magnetic) triggering signal.This actuator 7 thread off such as latching device 11 transmission device and open switch contact 1,2 by the switch shaft of this latching device 11, that is power switch is disconnected short circuit.If firing level is not exceeded, that is there is selection situation, then signal is fed to actuator 7, the interlock of this actuator 7 trip switch contact 1,2 again.By the spring 4 of tensioning, switch contact 1,2 closes again, that is power switch non preference ground disconnect, and affiliated branch road not with current separation.
Claims (4)
1. energy distribution system, there is from energy feed-in at least one preceding power switch is set and at least one arranges posterior power switch, described at least one preceding power switch is set there is the moveable switch contact (2) that at least one electric current flows through, this moveable switch contact is close on affiliated fixing switch contact (1) with applying power, and the magnetic force dynamically produced by electric current in short-circuit type electric current increase situation promotes from this fixing switch contact, wherein respectively at two switch contacts (1, 2) formed with the effective electric arc of the mode of Limited Current between,
Described at least one preceding power switch be set have:
Stop mechanical device (9), this stop mechanical device makes described moveable switch contact fix from reaching predetermined open-angle (w),
Latching device (11), and
Select trigger (6), described in triggering when exceeding energy threshold, at least one arranges preceding power switch to this selection trigger,
It is characterized in that, arranging can by the actuator (7) selecting trigger (6) to trigger, when the energy value determined by described selection trigger (6) exceedes described energy threshold, the operation of this actuator makes the chain released of described latching device (11) so that at least one arranges preceding power switch described in disconnecting, when due to described at least one the disconnection of posterior power switch is set and causes not exceeding described energy threshold time, this actuator operates described stop mechanical device (9) to discharge moveable switch contact (2).
2. energy distribution system according to claim 1, is characterized in that, described actuator (7) discharges described stop mechanical device (9) respectively after predetermined time of delay.
3. according to the energy distribution system one of claim 1-2 Suo Shu, it is characterized in that, described stop mechanical device (9) has interlock.
4. according to the energy distribution system one of claim 1-2 Suo Shu, it is characterized in that, described selection trigger (6) is configured to electronic selection trigger or is configured to and current related magnetic pivoted armature.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009012650.3 | 2009-03-11 | ||
| DE200910012650 DE102009012650A1 (en) | 2009-03-11 | 2009-03-11 | Power distribution system |
| PCT/EP2010/052263 WO2010102899A1 (en) | 2009-03-11 | 2010-02-23 | Power distribution system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102349128A CN102349128A (en) | 2012-02-08 |
| CN102349128B true CN102349128B (en) | 2015-02-11 |
Family
ID=42173266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080011259.6A Expired - Fee Related CN102349128B (en) | 2009-03-11 | 2010-02-23 | Power distribution system |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2406804B1 (en) |
| CN (1) | CN102349128B (en) |
| DE (1) | DE102009012650A1 (en) |
| WO (1) | WO2010102899A1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5381121A (en) * | 1992-03-31 | 1995-01-10 | Ellenberger & Poensgen Gmbh | Remote controlled overload protective switch |
| CN201075362Y (en) * | 2007-03-30 | 2008-06-18 | 赛雪龙公司 | Electronic mechanical type breaker |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2739220B1 (en) * | 1995-09-22 | 1997-12-12 | Dudon Pascal | DEVICE FOR CONTROLLING ELECTRICAL LINE BREAKING MEANS |
| JP4321296B2 (en) * | 2004-02-19 | 2009-08-26 | 富士電機機器制御株式会社 | Repulsive circuit breaker contactor device |
-
2009
- 2009-03-11 DE DE200910012650 patent/DE102009012650A1/en not_active Withdrawn
-
2010
- 2010-02-23 EP EP10710813.6A patent/EP2406804B1/en not_active Not-in-force
- 2010-02-23 WO PCT/EP2010/052263 patent/WO2010102899A1/en active Application Filing
- 2010-02-23 CN CN201080011259.6A patent/CN102349128B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5381121A (en) * | 1992-03-31 | 1995-01-10 | Ellenberger & Poensgen Gmbh | Remote controlled overload protective switch |
| CN201075362Y (en) * | 2007-03-30 | 2008-06-18 | 赛雪龙公司 | Electronic mechanical type breaker |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2005-235539A 2005.09.02 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102349128A (en) | 2012-02-08 |
| EP2406804B1 (en) | 2013-07-31 |
| WO2010102899A1 (en) | 2010-09-16 |
| DE102009012650A1 (en) | 2010-09-16 |
| EP2406804A1 (en) | 2012-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101620298B1 (en) | Remote operated circuit breaker with manual reset | |
| KR950003868B1 (en) | Circuit breaker with force generating shunt | |
| KR101026306B1 (en) | Molded case circuit breaker having a instaneous trip mechanism | |
| US8159319B2 (en) | Double-breaking contact system for a low voltage circuit breaker, a molded case circuit breaker comprising the double-breaking contact system, and a method for breaking a circuit | |
| CN107924794B (en) | Breaker with current limliting and high speed failures | |
| CN101375360A (en) | Alternator circuit-breaker disconnecting switch of compact structure | |
| EP2015340B1 (en) | Time delay output apparatus for circuit breaker | |
| CN100555507C (en) | Miniature circuit breaker | |
| CN201655694U (en) | Contact system with short circuit protection function | |
| CN101194334A (en) | Contact system, especially for a switchgear | |
| US9208962B2 (en) | Circuit breaker including an anti-rebound system, anti-rebound system for a circuit breaker and method | |
| KR101276370B1 (en) | Circuit breaker | |
| CN102349128B (en) | Power distribution system | |
| JP4960072B2 (en) | Circuit breaker | |
| CN102047370B (en) | Electric selective automatic switch | |
| US9734960B2 (en) | Switching device having an apparatus for switching on suddenly | |
| KR100496596B1 (en) | Air Circuit Breaker | |
| CN101170031B (en) | Quick break low voltage circuit breaker | |
| GB1576877A (en) | Apparatus for the rapid interruption of currents | |
| CN101656178B (en) | Contact system with short circuit protection function | |
| CN107204263B (en) | Refer to the slot motor construction of breaker for high-amperage more | |
| EP3107112B1 (en) | Contact system of a circuit breaker, and circuit breaker | |
| CN202058668U (en) | Selective circuit protection switch | |
| CN212725133U (en) | Switching high-parameter bus conversion current device | |
| CN1993790B (en) | Breaker device for low voltage applications |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20170223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |