CN1983492B - Protective circuit switch with time-delay trigger - Google Patents
Protective circuit switch with time-delay trigger Download PDFInfo
- Publication number
- CN1983492B CN1983492B CN2006100647638A CN200610064763A CN1983492B CN 1983492 B CN1983492 B CN 1983492B CN 2006100647638 A CN2006100647638 A CN 2006100647638A CN 200610064763 A CN200610064763 A CN 200610064763A CN 1983492 B CN1983492 B CN 1983492B
- Authority
- CN
- China
- Prior art keywords
- switch
- circuit protecting
- time
- circuit
- storage means
- 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
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
- H02H3/044—Checking correct functioning of protective arrangements, e.g. by simulating a fault
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/06—Arrangements for supplying operative power
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/093—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current with timing means
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- Emergency Protection Circuit Devices (AREA)
- Breakers (AREA)
Abstract
The invention relates to a safe protective circuit breaker with time-delay release. Thereby, energy reservoir (E) for the release unit (A) is fed by a supply unit (SV) connected to the supply side, guaranteeing that the energy reservoir is always loaded independently of whether the switch contacts (S1,S2) of the circuit breaker are open or closed. Preferably other electronic components are supplied by power by the supply unit (SV) connected to the supply side.
Description
Technical field
The present invention relates to a kind of circuit protecting switch.The sort circuit protection switch is generally as the preposition automatics (Vorautomat) in the building installation system.
Background technology
Circuit protecting switch classification typically connects.Before an optionally preposition automatics is connected the circuit protecting switch of a plurality of " common ", thereby also has the function of circuit protecting switch substantially.Yet it must have the certain selectivity with respect to the excessive current that occurs.
Selectivity means that preposition automatics should not be disconnected similarly for the situation of each disconnection of the circuit protecting switch of postposition connection.This is necessary, makes remaining wherein not have short circuit electric current present loop still can be provided with electric current again after cutting-off of short-circuit current circuit thus.Yet, because circuit protecting switch is not cut-off switch contact promptly after short circuit occurs, so short circuit pulse spreads all over whole system and preposition automatics.Like this, optionally limiting value must be provided with so in this case, makes that predetermined short circuit pulse is tolerated, and does not disconnect switch contact.
From the preposition automatics of the known a kind of selectivity direct current of GWB company, it has built-in time-delay.A magnetic system that has current coil of connecting with circuit protecting switch is connected switch contact under particular current intensity, this switch contact activates delay unit (R-C circuit).This delay unit sends signal, trigger equipment release-push button to trigger equipment after certain hour.This switch button works to the tappet (Mitnehmer) of circuit protecting switch and with its disconnection.The electric storage means of capacitor form provides required triggering energy for trigger device.Output or load end that the voltage of circuit is supplied with by circuit protecting switch carry out.
If this preposition automatics disconnects under the situation of short circuit now, then electric storage means discharge this moment.When the preposition automatics of selectivity was connected again, electric storage means must at first refill before automatic safety device works.
This moment, then it reclosed after short circuit is eliminated if short circuit and optionally preposition automatics are disconnected.Yet, if short circuit also is not eliminated, and this optionally preposition automatics is switched on, and that is to say that this optionally preposition automatics connects under the situation that short circuit exists, the significant prolongation that then can cause opening time is not because electric storage means also is full of.High short circuit current makes this device bear great load, and since the thermoplasticity shell this in addition can cause fire.Only after electric storage means charging, that is to say that this device could be again be in the operation standby condition and turn-offs according to the common turn-off time according to predetermined mode through after the charging interval of capacitor.
Summary of the invention
Therefore the technical problem to be solved in the present invention is that optionally circuit protecting switch and preposition automatics are provided more reliably.
According to the present invention, this technical problem solves by a kind of circuit protecting switch, and it comprises supply terminals, can connect voltage power supply device thereon; The load wiring end can connect electric loading thereon; Switch contact, it is connected between this supply terminals and the load wiring end; Be used to open the trigger equipment of switch contact; Be used for providing the electric storage means that triggers energy to this trigger equipment; Be used for providing the time-delay mechanism of triggering signal to this trigger equipment delay, and the current power supply device that passes through the breakout connection on the ampere wires between supply terminals and the load wiring end, be used to the electric storage means power supply, wherein, this breakout is arranged between supply terminals and the switch contact.
Guaranteed that the electric storage means of circuit protecting switch always is recharged, even if also charging during circuit protecting switch is in dissengaged positions just with having advantage thus.Therefore the circuit protecting switch ground of can obviously not delaying time when short circuit occurring and connect suddenly cuts off again.
Preferably, electric storage means comprises a capacitor.Capacitor is very suitable to this, because capacitor is the parts of strong yet economy.
Time-delay mechanism can have the measurement input that is used to gather the electric current between switch contact and the load wiring end.Can after detecting short circuit current, start time-delay immediately thus.
Time-delay mechanism can also have the testing button that is used to test delay function.By such test, checking function is come at interval that can rule.
Particularly advantageous is that time-delay mechanism and trigger equipment also can be provided with electric current by the breakout to the electric storage means power supply.Like this, the entire circuit of circuit protecting switch is by common current source supply, and can not change during connection suddenly the opening time of preposition automatics after short circuit occurring yet.
May be embodied as according to circuit protecting switch of the present invention multipole, particularly 2 utmost points or 4 utmost points, and the supply terminals, load wiring end and the switch contact that have essential quantity corresponding to this number of poles.Circuit protecting switch just can be used in arbitrarily in the electric power system like this.
Description of drawings
In conjunction with the accompanying drawings the present invention is illustrated in more detail now,
Fig. 1 has described the circuit block diagram according to the circuit protecting switch of band time-delay trigger of the present invention.
Embodiment
The embodiment that describes in detail below is the preferred embodiments of the present invention.
In circuit block diagram shown in Figure 1 with denotational description the critical piece of one 2 polar circuit protection switch.The supply terminals V1 of first utmost point is connected with load wiring end L1 by switch contact S1.Equally, the supply terminals V2 of second utmost point is connected with load wiring end L2 by switch contact S2.Two utmost points of electric power system are connected on supply terminals V1 and the V2, and corresponding load extremely can be connected on two load wiring end L1 and the L2 with two.
Two switch contact S1 and S2 can operate by switch button SC.This switch button SC obtains opening the signal of switch contact S1 and S2 when needed there from trigger element A.The triggering energy of trigger element A is from electric storage means E.
Power supply unit SV is connected with ampere wires at input.According to the present invention, this energy branch that is used to electric storage means E power supply extremely go up at first between supply terminals V1 and the switch contact S1 and second between supply terminals V2 and the switch contact S2 extremely on realization.In other words, power supply branch occurs in power supply one side.Therefore power supply unit SV and switch contact S1 and S2 connect and still disconnect the supply power voltage that each expectation irrespectively is provided.Supply power voltage is marked by "+" as positive direct voltage in diagram.Electric storage means E also has a power input that indicates "+" accordingly.Electric storage means just can be independent of the state of switch contact S1 and S2 and be powered like this.Even this means when after short circuit occurring, connecting suddenly and also stored required triggering energy in the electric storage means, so just the triggered time that can not occur prolonging.
Trigger element A also powers by the supply power voltage of power supply unit SV in this embodiment.Trigger element A has the power supply input "+" of a correspondence.Because trigger element A also contains the electronic component that can not directly work fully after connecting, make trigger element A from constant supply current benefit, this electric current supply is that the branch by mains side guarantees.
The circuit protecting switch of describing in diagram is an automatic safety device that has time-delay.Here be provided with the delay cell Z of a control trigger element A.Time-delay generally realizes by the RC element.According to present embodiment,, measure electric current in load one side between switch contact S1 and load wiring end L1 in order to start time-delay mechanism Z.If during the electric current that for example record short circuit, just raises, then electric current raises and works to triggering time-delay.Very simple execution mode corresponding to " current measurement " is provided with an induction coil on the circuit of load wiring end L1, when electric current raises, and such as I＞500A, this induction coil off switch then, thus the RC element of delay unit Z is charged.
Delay unit Z also has testing button T in addition, therefore can detect the function that time-delay or time-delay trigger at any time.In addition delay unit Z also has the power input "+" that is connected with power supply unit SV.The entire circuit of circuit protecting switch can both irrespectively be powered by power supply unit SV with the state of switch contact S1 and S2 thus.Therefore guaranteed the identical all the time turn-off time, still closed irrelevant and be in operation with circuit protecting switch.
What can determine in a word is; at least be for electric storage means E; can avoid owing to the shortcoming that voltage source brings is set by electric supply installation is set at the circuit protecting switch mains side in customer side or load-side because when circuit protecting switch is closed electric storage means and also have remaining circuit also to stay in the electrical network sometimes.Therefore can avoid because the problem of the long delay of the high capacity of device because voltage source when applying supply power voltage immediately to the capacitor charging of electric storage means, and when short circuit current occurring closure.
Claims (6)
1. circuit protecting switch comprises:
-supply terminals (V1 V2), can connect voltage power supply device (SV) on it,
-load wiring end (L1 L2), can connect electric loading on it,
-switch contact (S1, S2), its be connected this supply terminals (V1, V2) and the load wiring end (L1, L2) between,
-be used to open switch contact (S1, trigger equipment S2) (A),
-be used for providing the electric storage means (E) that triggers energy to this trigger equipment (A),
-be used for postponing to provide the time-delay mechanism (Z) of triggering signal to this trigger equipment (A), and
-by be positioned at supply terminals (V1, V2) and the load wiring end (L1, L2) current power supply device (SV) that connects of the breakout on the ampere wires between is used to this electric storage means (E) power supply, it is characterized in that:
-this breakout be arranged on supply terminals (V1, V2) and switch contact (S1, S2) between.
2. circuit protecting switch as claimed in claim 1, wherein, described electric storage means (E) comprises a capacitor.
3. circuit protecting switch as claimed in claim 1, wherein, described time-delay mechanism (Z) has the measurement input that is used to gather the electric current between switch contact (S1) and the load wiring end (L1).
4. circuit protecting switch as claimed in claim 1, wherein, described time-delay mechanism (Z) has the testing button (T) that is used to test delay function.
5. circuit protecting switch as claimed in claim 1, wherein, described time-delay mechanism (Z) and trigger equipment (A) also can be by described breakout power supplies.
6. the described circuit protecting switch of one of claim as described above is implemented as 2 utmost points or 4 utmost points, and correspondingly have respectively 2 or 4 supply terminalss (V1, V2), the load wiring end (L1, L2) and switch contact (S1, S2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005047042.4 | 2005-09-30 | ||
| DE200510047042 DE102005047042B4 (en) | 2005-09-30 | 2005-09-30 | Circuit breaker with time-delayed tripping |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1983492A CN1983492A (en) | 2007-06-20 |
| CN1983492B true CN1983492B (en) | 2011-06-22 |
Family
ID=37852698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100647638A Expired - Fee Related CN1983492B (en) | 2005-09-30 | 2006-09-30 | Protective circuit switch with time-delay trigger |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1983492B (en) |
| DE (1) | DE102005047042B4 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101552160B (en) * | 2008-03-31 | 2012-01-11 | 北京人民电器厂有限公司 | Circuit protecting switch with delay control device |
| US8503148B2 (en) * | 2010-10-20 | 2013-08-06 | Schneider Electric USA, Inc. | Circuit breaker with fault indication and secondary power supply |
| DE102011077707B4 (en) * | 2011-06-17 | 2015-02-12 | Siemens Aktiengesellschaft | Switch, in particular circuit breaker, and method for triggering a switch |
| DE102011083583A1 (en) * | 2011-09-28 | 2013-03-28 | Siemens Aktiengesellschaft | Low voltage switch i.e. power switch, has actuator and latch for disconnection of set of switching contacts, where shaft drives power generator that loads capacitor with voltage and current |
| CN102420596B (en) * | 2011-12-12 | 2013-11-27 | 汉柏科技有限公司 | Delay device compatible with multiple level analogue signals |
| DE102013203985A1 (en) * | 2013-03-08 | 2014-09-11 | Siemens Aktiengesellschaft | Switch, in particular circuit breaker for low voltage |
| DE102020215711B4 (en) | 2020-12-11 | 2023-08-03 | Siemens Energy Global GmbH & Co. KG | Tripping device for a circuit breaker |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3176190A (en) * | 1960-12-16 | 1965-03-30 | Gen Electric | Phase-comparison protective relaying system |
| DE1513152C3 (en) * | 1964-04-13 | 1974-02-28 | General Electric Co., New York, N.Y. (V.St.A.) | Time overcurrent relay |
-
2005
- 2005-09-30 DE DE200510047042 patent/DE102005047042B4/en not_active Expired - Fee Related
-
2006
- 2006-09-30 CN CN2006100647638A patent/CN1983492B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3176190A (en) * | 1960-12-16 | 1965-03-30 | Gen Electric | Phase-comparison protective relaying system |
| DE1513152C3 (en) * | 1964-04-13 | 1974-02-28 | General Electric Co., New York, N.Y. (V.St.A.) | Time overcurrent relay |
Non-Patent Citations (1)
| Title |
|---|
| 电力工程直流电源系统G系列直流断路器设计选型手册2003版.北京人民电器厂,2003,4-14、27. * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102005047042A1 (en) | 2007-04-05 |
| CN1983492A (en) | 2007-06-20 |
| DE102005047042B4 (en) | 2008-07-10 |
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| 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: 20110622 Termination date: 20160930 |
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| CF01 | Termination of patent right due to non-payment of annual fee |