DE896083C - Fast switching relay for direct current systems - Google Patents
Fast switching relay for direct current systemsInfo
- Publication number
- DE896083C DE896083C DEA10523D DEA0010523D DE896083C DE 896083 C DE896083 C DE 896083C DE A10523 D DEA10523 D DE A10523D DE A0010523 D DEA0010523 D DE A0010523D DE 896083 C DE896083 C DE 896083C
- Authority
- DE
- Germany
- Prior art keywords
- magnet
- switching relay
- relay according
- armature
- following
- 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
Links
- 238000004804 winding Methods 0.000 claims description 11
- 230000005415 magnetization Effects 0.000 claims description 4
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- 230000005284 excitation Effects 0.000 claims 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects 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
- H01H83/08—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by reversal of DC
-
- 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
- H02H3/18—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 reversal of direct current
Landscapes
- Electromagnets (AREA)
Description
Moderne Sehnellschaltrelais erzielen durch geeignete Polbildung bei kleinster bewegter Ankermasse sehr kurze Ansprechzeiten. Eine geeignete Anwendung des Grundgedankens auf Gleichrichteranlagen zur Abschaltung bei Rückstrom, z. B. bei Anodenkurzschluß, ist noch nicht bekanntgeworden. Das Relais wird hierzu als Primärrelais mit Haftanker ausgeführt, und zwar erfindungsgemäß derart, daß sein Magnetkern ringförmig die Gleichstromschiene umgibt.Modern linear switching relays achieve through suitable pole formation smallest moving anchor mass very short response times. A suitable application the basic idea of rectifier systems for disconnection in the event of reverse current, e.g. B. in the event of anode short circuit, has not yet become known. The relay is used as a Primary relay executed with adhesive armature, according to the invention in such a way that its Magnetic core surrounds the DC bus in a ring shape.
Die Erfindung ist in der Zeichnung beispielsweise- dargestellt. -Abb. i zeigt das Relais selbst, Abb. 2 seine Wirkungsweise.The invention is shown in the drawing as an example. - Fig. i shows the relay itself, Fig. 2 its mode of operation.
über eine Hilfswicklung WH wird dem Magneten der Haltestrom JH aus einer Hilfsstromquelle zügeführt, damit er nicht bereits bei J(=) = a auslöst. Der Strom der z. B. mehrteiligen Schiene S magnetisiert den Kern K' zunächst. in gleicher Richtung. Kehrt J(-) seine Richtung um, so ;kehrt sich auch die Magn.etisierung des Kernes um.The holding current JH is supplied to the magnet via an auxiliary winding WH An auxiliary power source is supplied so that it does not trip at J (=) = a. Of the Current of z. B. multi-part rail S magnetizes the core K 'first. in the same Direction. If J (-) reverses its direction, the magnetization is also reversed of the core around.
Sobald die Magnetisierung durch Null geht, wird der sehr leichte Anker A mit -großer Kraft durch eine Zugfeder Z abgerissen und schließt Iden Schaltkontakt K. Der Anker kann bei negativem Wiederanstieg der Magn.etisierung wegen der durch die Form der Polstufe erzielten geringen Fernwirkung nicht wieder zurückgeholt werden. Wünscht man, daß .das Auslösen erst bei einem Rückstrom bestimmter Größe erfolgt, so erhöht man die Amperewindungen des Haltestromes von AW'H auf AWH. Dann tritt die Auslösung erst bei J(=) = AIWH - AW'g ein.As soon as the magnetization goes through zero, the very light armature A is torn off with great force by a tension spring Z and closes the switching contact K. If the magnetization rises again negatively, the armature cannot return due to the low long-range effect achieved by the shape of the pole step to be retrieved. If one wishes that the triggering only takes place with a reverse current of a certain magnitude, then the ampere turns of the holding current are increased from AW'H to AWH. Then tripping does not occur until J (=) = AIWH - AW'g.
Das Zurückholen des Ankers kann durch einen bei seinem Abfallen eingeschalteten Magneten oder Motorerfolgen. Die Rückholeinrichtung kann. bei einem Ankeransatz F angreifen. Eine weitere Möglichkeit für die Rückholung stellt schließlich auch ein polarisierter Hubmagnet dar, der -unmittelbar vom Schienenstrom positiver Richtung betätigt wird: Die Zeitkonstante der Hilfswicklung WH - kann durch Ohmsche Widerstände R, ferner durch hochgesättigte Teile im magnetischen Kreis beliebig klein gehalten werden. Es kann auch eine Nachbildung des Relais mit nicht beweglichem Anker ebenfalls um die Stromschiene gelegt werden und ihre Hilfswicklung zur Hilfswicklung des Schaltmagneten mit umgekehrtem Wickelsinn in Reihe geschaltet werden.The armature can be retrieved by a magnet or motor that is switched on when it drops. The retrieval device can. attack at an anchor point F. Another possibility for retrieval is a polarized lifting magnet, which is actuated directly by the rail current in the positive direction: the time constant of the auxiliary winding WH can be kept as small as desired by means of ohmic resistances R and highly saturated parts in the magnetic circuit. A replica of the relay with a non-movable armature can also be placed around the busbar and its auxiliary winding connected in series with the auxiliary winding of the switching magnet with the winding direction reversed.
Es ist möglich, mit der angegebenen Anordnung Schaltzeiten von etwa o,001 Sekunden zu erzielen.With the specified arrangement, it is possible to achieve switching times of approx o, 001 seconds to achieve.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA10523D DE896083C (en) | 1939-03-14 | 1939-03-14 | Fast switching relay for direct current systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA10523D DE896083C (en) | 1939-03-14 | 1939-03-14 | Fast switching relay for direct current systems |
Publications (1)
Publication Number | Publication Date |
---|---|
DE896083C true DE896083C (en) | 1953-11-09 |
Family
ID=6922057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA10523D Expired DE896083C (en) | 1939-03-14 | 1939-03-14 | Fast switching relay for direct current systems |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE896083C (en) |
-
1939
- 1939-03-14 DE DEA10523D patent/DE896083C/en not_active Expired
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