CH103821A - Voltage-dependent timing relay for selective overcurrent protection of lines. - Google Patents
Voltage-dependent timing relay for selective overcurrent protection of lines.Info
- Publication number
- CH103821A CH103821A CH103821DA CH103821A CH 103821 A CH103821 A CH 103821A CH 103821D A CH103821D A CH 103821DA CH 103821 A CH103821 A CH 103821A
- Authority
- CH
- Switzerland
- Prior art keywords
- voltage
- overcurrent protection
- lines
- relay
- timing relay
- Prior art date
Links
- 230000001419 dependent effect Effects 0.000 title claims description 7
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H53/00—Relays using the dynamo-electric effect, i.e. relays in which contacts are opened or closed due to relative movement of current-carrying conductor and magnetic field caused by force of interaction between them
- H01H53/10—Induction relays, i.e. relays in which the interaction is between a magnetic field and current induced thereby in a conductor
- H01H53/12—Ferraris relays
Landscapes
- Emergency Protection Circuit Devices (AREA)
Description
Spannungsabhängiges Zeitrelais für den selektiven Uberstromschutz von Leitungen. Es hat sich gezeigt, dass das bei einem spannungsabhängigen Relais nach dem Patent anspruch des Hauptpatentesvorhandene, augen blicklich wirkende Höch ststr omrelais vorteilhaft mechanisch mit dem spannungsabhängigen Relais in Verbindung gebracht wird.
Die beiliegende schematische Zeichnung zeigt hierfür drei Ausführungsbeispiele, in denen der Trieb- und der Bremsmagnet mit <I>T,</I> bezw. mit<I>B,</I> der Auslösekontakt mit K, das augenblicklich wirkende Höchststromrelais mit<B>31</B> und die Zahnstange mit Z bezeich net sind.
Gemäss der Ausführungsform der Fig. 1 wird die Zahnstange Z des spannungsab hängigen Relais durch den Druck einer Feder I' hochgehalten. Bei Höchststrom wird der Anker des Relais Dl plötzlich angezogen und die Stange Z wird freigegeben. Die Magnete <I>T</I> und<I>B</I> sind dauernd erregt. Bei der Ausführungsform nach Fig. 2 wird der Spannungskreis erst beim Ansprechen des Relais M durch Kontakte Ki geschlossen. Die Magnete<I>T</I> und<I>B</I> können intermittierend stark belastet werden.
Wie die Ausführungsform der Fig. 3 zeigt, kann der Magnet 1'61 auch mit einer Fremd stromquelle G verbunden werden, deren Strom kreis bei Kurzschluss durch ein Höchststrom relais N geschlossen wird.
Voltage-dependent timing relay for selective overcurrent protection of lines. It has been shown that the instantaneous maximum current relay, which is present in a voltage-dependent relay according to the patent claim of the main patent, is advantageously mechanically connected to the voltage-dependent relay.
The accompanying schematic drawing shows three exemplary embodiments for this, in which the drive magnet and the brake magnet with <I> T, </I> respectively. with <I> B, </I> the tripping contact with K, the instantaneously operating high-current relay with <B> 31 </B> and the rack with Z.
According to the embodiment of FIG. 1, the rack Z of the span dependent relay is held up by the pressure of a spring I '. At maximum current, the armature of relay Dl is suddenly attracted and rod Z is released. The magnets <I> T </I> and <I> B </I> are constantly excited. In the embodiment according to FIG. 2, the voltage circuit is closed only when the relay M responds through contacts Ki. The magnets <I> T </I> and <I> B </I> can be heavily loaded intermittently.
As the embodiment of FIG. 3 shows, the magnet 1'61 can also be connected to an external power source G, whose circuit is closed by a maximum current relay N in the event of a short circuit.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH103821T | 1922-09-20 | ||
| CH100570T | 1922-09-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH103821A true CH103821A (en) | 1924-03-01 |
Family
ID=25705794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH103821D CH103821A (en) | 1922-09-20 | 1922-09-20 | Voltage-dependent timing relay for selective overcurrent protection of lines. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH103821A (en) |
-
1922
- 1922-09-20 CH CH103821D patent/CH103821A/en unknown
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