DE222886C - - Google Patents
Info
- Publication number
- DE222886C DE222886C DENDAT222886D DE222886DA DE222886C DE 222886 C DE222886 C DE 222886C DE NDAT222886 D DENDAT222886 D DE NDAT222886D DE 222886D A DE222886D A DE 222886DA DE 222886 C DE222886 C DE 222886C
- Authority
- DE
- Germany
- Prior art keywords
- contact
- switch
- circuit
- brush
- relay
- 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.)
- Active
Links
- 239000011810 insulating material Substances 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/59—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the AC cycle
- H01H33/593—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the AC cycle for ensuring operation of the switch at a predetermined point of the AC cycle
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Relay Circuits (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
in FRANKFURTa. M.in FRANKFURTa. M.
Zur Vermeidung von gefährlichen Spannungsund Stromerhöhungen in Stromkreisen, deren Heftigkeit bekanntlich in hohem Maße von dem Augenblickswert abhängt, den Strom 5 oder Spannung in dem Zeitpunkt der Ein- und Ausschaltung besitzen, hat man Einrichtungen getroffen, die die Schaltung in demjenigen Zustand der Strom- oder Spannungskurve bewirken sollen, in dem das Feld den To avoid dangerous voltage and current increases in circuits, their As is well known, intensity depends to a large extent on the instantaneous value, the current 5 or have voltage at the time of switching on and off, one has facilities hit, which should cause the circuit in that state of the current or voltage curve in which the field the
ίο Wert hat, bei welchen die Strom- und Spannungserhöhungen auf ein Mindestmaß beschränkt bleiben.ίο has value at which the current and voltage increases remain limited to a minimum.
Eine derartige Einrichtung besteht z. B. in der Verwendung einer mit der betreffenden Spannungskurve des Stromkreises synchron laufenden Kontaktvorrichtung, deren Kontaktschluß die Einschaltung oder Auslösung des Hauptschalters bewirkt.Such a device consists, for. B. in the use of one with the relevant Voltage curve of the circuit synchronously running contact device, the contact closure causes the main switch to be switched on or tripped.
Bei derartigen Einrichtungen ist die Schaltung von der Länge der umlaufenden Kontakte und von der Güte des Kontaktschlusses abhängig.In such devices, the circuit is of the length of the circumferential contacts and depends on the quality of the contact closure.
Bei der Einrichtung gemäß der Erfindung ist die Schaltung von dem eigentlichen Kontaktschluß unabhängig und dadurch eine äußerst genaue Schaltung gewährleistet. Dies wird dadurch erreicht, daß die Auslösung des Schalters nicht unmittelbar, sondern unter Zwischenschaltung eines im Stromkreis über die Kontaktbürste parallel zum Auslösemagneten gelegten Hilfsrelais bewirkt wird, durch das der Auslösemagnet bei Kontaktschluß zwar in den Stromkreis eingeschaltet ist, jedoch infolge des kurzgeschlossenen, parallel liegenden Stromkreises erst beim Aufheben dieses parallel liegenden Stromkreises in Tätigkeit gesetzt wird.In the device according to the invention, the circuit is from the actual contact closure independent and thus ensures extremely precise switching. This is achieved by triggering the Switch not directly, but with the interposition of one in the circuit the contact brush is activated parallel to the tripping magnet, by which the release magnet is switched into the circuit when the contact closes is, however, due to the short-circuited, parallel circuit, only when canceled this parallel circuit is put into action.
Als Ausführungsbeispiel ist in Nachstehendem an Hand der Zeichnung eine Einrichtung beschrieben, welche die Möglichkeit gibt, in Abhängigkeit von den vorhandenen Feldern zu schalten, indem die Kontaktvorrichtung von der Phase der Spannungskurve abhängig gemacht ist.As an exemplary embodiment, a device is described below with reference to the drawing, which gives the possibility of switching depending on the existing fields by using the contact device of the phase of the voltage curve is made dependent.
Durch einen in bekannter Weise mit der betreffenden Spannungs- oder Stromwelle synchron laufenden Kontaktapparat werden der oder die zum Ein- oder Ausschalten dienenden Schalter gesteuert. Besteht der Kontaktapparat z. B. aus einem Synchronmotor m, so erfolgt die Einstellung des Schaltzeitpunktes mittels zweier auf einer Kontaktwalze c schleifenden Bürsten b und d, von denen erstere zum Einschalten, letztere zum Ausschalten dient. Die Kontaktwalze selbst ist auf der Achse des erwähnten kleinen Synchronmotors, der von der betreffenden Stromquelle gespeist wird, einstellbar befestigt.The switch or switches used for switching on or off are controlled by a contact apparatus running synchronously with the relevant voltage or current wave in a known manner. If the contact apparatus exists z. B. from a synchronous motor m, the setting of the switching time takes place by means of two brushes b and d sliding on a contact roller c, of which the former is used to switch on, the latter to switch off. The contact roller itself is adjustably fastened on the axis of the mentioned small synchronous motor, which is fed by the relevant power source.
Macht der Motor z. B. bei 100sekundlichen Wechseln 1500 Umdrehungen in der Minute, so entspricht eine Viertelumdrehung einer zeitlichen Änderung der Spannungskurve um i8o°. Die Bürsten b und d siiid unabhängig voneinander verschiebbar. Ihre Stellung kann z. B. an einer in Graden geteilten Skala abgelesen werden. Die Kontaktwalze c bestehtDoes the engine z. B. with 100-second changes 1500 revolutions per minute, a quarter of a revolution corresponds to a temporal change in the voltage curve by 180 °. The brushes b and d can be moved independently of one another. Your position can e.g. B. can be read on a scale divided into degrees. The contact roller c is made
Claims (2)
Publications (1)
Publication Number | Publication Date |
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DE222886C true DE222886C (en) |
Family
ID=483743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT222886D Active DE222886C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE222886C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1024609B (en) * | 1952-02-11 | 1958-02-20 | Licentia Gmbh | Device for synchronous switching on of high currents |
DE1181774B (en) * | 1960-02-29 | 1964-11-19 | Licentia Gmbh | Synchronous single or multi-phase current circuit breaker operated by a wave |
-
0
- DE DENDAT222886D patent/DE222886C/de active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1024609B (en) * | 1952-02-11 | 1958-02-20 | Licentia Gmbh | Device for synchronous switching on of high currents |
DE1181774B (en) * | 1960-02-29 | 1964-11-19 | Licentia Gmbh | Synchronous single or multi-phase current circuit breaker operated by a wave |
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