DE594262C - Switchgear with magnetic spark extinction - Google Patents
Switchgear with magnetic spark extinctionInfo
- Publication number
- DE594262C DE594262C DES100586D DES0100586D DE594262C DE 594262 C DE594262 C DE 594262C DE S100586 D DES100586 D DE S100586D DE S0100586 D DES0100586 D DE S0100586D DE 594262 C DE594262 C DE 594262C
- Authority
- DE
- Germany
- Prior art keywords
- magnetic
- switchgear
- designed
- extinction
- magnetic spark
- 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
- 230000008033 biological extinction Effects 0.000 title claims description 3
- 238000007664 blowing Methods 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H9/443—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Description
Es hat sich bei Selbstschaltern mit magnetischer Funkenlöschung, die im Betrieb mit höheren Spannungen verwendet werden, gezeigt, daß häufig bei kleinem Strom die Amperewindungszahl der Blasspule nicht ausreicht, ein genügend starkes Blasfeld zu erzeugen. It has been found in self-switches with magnetic spark quenching that operate with higher voltages are used, it has been shown that the number of ampere-turns is often lower when the current is low the blowing coil is not sufficient to generate a sufficiently strong blowing field.
Um diesen Nachteil zu vermeiden, wird erfindungsgemäß der Magnetkern der Funkenlöschspule als permanenter Magnet ausgebildet. Beispielsweise kann der Magnetkern aus gehärtetem Kobaltstahl bestehen und kräftig vormagnetisiert sein.In order to avoid this disadvantage, according to the invention, the magnetic core of the spark extinguishing coil designed as a permanent magnet. For example, the magnetic core can consist of hardened cobalt steel and be strongly pre-magnetized.
In der Figur ist als Ausführungsbeispiel ein Teil eines Schalters im Grundriß dargestellt. Mit ι und 2 sind die Kontakte des Schalters bezeichnet. 3 bedeutet den oberen Schenkel eines magnetischen Blassystems. Die magnetischen Kraftlinien schließen sich durch diesen Schenkel sowie einen unteren Schenkel über einen Eisenkern 4, der von einer von dem zu unterbrechenden Strom durchflossenen Erregerwicklung S umgeben ist. Damit das Blasfeld in der Nähe der Unterbrechungsstelle der Kontakte möglichst kräftig ist, sind an den Blasschenkeln noch Hilfspole 6 angebracht, für die mit Vorteil ebenfalls permanente Magnete verwendet werden können. Diese Hilfspole als permanente Magnete können übrigens mit Vorteil auch bei Schaltern vorgesehen werden, bei denen der Magnetkern der Blasvorrichtung nicht als permanenter Magnet ausgebildet ist. In diesem Fall sind die Hilfspole als permanente Magnete ausgebildet.In the figure, a part of a switch is shown in plan as an embodiment. The contacts of the switch are denoted by ι and 2. 3 means the upper one Leg of a magnetic blowing system. The magnetic lines of force close through this leg and a lower leg via an iron core 4, which is of an excitation winding S through which the current to be interrupted flows is. So that the blown field is as close as possible to the point of interruption of the contacts is strong, auxiliary poles 6 are attached to the pale legs, for which it is advantageous permanent magnets can also be used. These auxiliary poles as permanent Magnets can also be provided with advantage in switches that have the magnetic core of the blower is not designed as a permanent magnet. In this case the auxiliary poles are considered permanent Magnets formed.
Durch die Erfindung wird eine erhebliche Verbesserung von Schaltapparaten mit elektromagnetischer Funkenlöschung erzielt. Durch die Anwendung von Magnetkernen, die ein kräftiges permanentes Magnetfeld besitzen, wird ein genügendes Blasfeld auch dann erzielt, wenn die zu unterbrechenden Ströme nur sehr gering sind.The invention is a significant improvement of switching devices with electromagnetic Spark extinction achieved. By using magnetic cores, which have a strong permanent magnetic field, a sufficient blowing field is achieved even if the currents to be interrupted are only very low.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES100586D DE594262C (en) | Switchgear with magnetic spark extinction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES100586D DE594262C (en) | Switchgear with magnetic spark extinction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE594262C true DE594262C (en) | 1934-03-14 |
Family
ID=7523165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES100586D Expired DE594262C (en) | Switchgear with magnetic spark extinction |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE594262C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1015893B (en) * | 1953-05-05 | 1957-09-19 | Siemens Ag | Arc extinguishing chamber for electrical switchgear with a permanent magnetic field |
| DE10117346A1 (en) * | 2001-04-06 | 2002-11-07 | Siemens Ag | Electrical overload protection switch has arc extinguishing unit with magnetic field control |
-
0
- DE DES100586D patent/DE594262C/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1015893B (en) * | 1953-05-05 | 1957-09-19 | Siemens Ag | Arc extinguishing chamber for electrical switchgear with a permanent magnetic field |
| DE10117346A1 (en) * | 2001-04-06 | 2002-11-07 | Siemens Ag | Electrical overload protection switch has arc extinguishing unit with magnetic field control |
| DE10117346B4 (en) * | 2001-04-06 | 2004-05-06 | Siemens Ag | Circuit breaker with an extinguishing device |
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