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DE400436C - Three-phase zero voltage magnet - Google Patents

Three-phase zero voltage magnet

Info

Publication number
DE400436C
DE400436C DEE28981D DEE0028981D DE400436C DE 400436 C DE400436 C DE 400436C DE E28981 D DEE28981 D DE E28981D DE E0028981 D DEE0028981 D DE E0028981D DE 400436 C DE400436 C DE 400436C
Authority
DE
Germany
Prior art keywords
zero voltage
phase zero
magnet
voltage magnet
phase
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
Application number
DEE28981D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EMAG ELEK ZITAETS AKT GES
Original Assignee
EMAG ELEK ZITAETS AKT GES
Publication date
Priority to DEE28981D priority Critical patent/DE400436C/en
Application granted granted Critical
Publication of DE400436C publication Critical patent/DE400436C/en
Expired legal-status Critical Current

Links

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
    • H02H3/24—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 undervoltage or no-voltage
    • H02H3/253—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 undervoltage or no-voltage for multiphase applications, e.g. phase interruption

Landscapes

  • Permanent Magnet Type Synchronous Machine (AREA)

Description

Die bekannten dreiphasigen Nullspannungsmagneten sind mit drei Spulen versehen. Diese Nullspannungsmagnete haben den Nachteil, daß, wenn nur eine Phase spannungslos wird, der Anker nicht mit Sicherheit abfällt, sondern oft, da er durch die beiden anderen Schenkel noch festgehalten wird, haftenbleibt. Der nachstehend beschriebene dreiphasige Nullspannungsmagnet vermeidet diesen Nachteil. Er besteht aus nur zwei Magnetschenkeln, auf welche die Spannungsspulen aufgesteckt sind. Der Anker besteht aus zwei Teilen und ist so eingerichtet, daß ein Teil unabhängig von dem anderen abfallen kann.
In der Zeichnung bedeutet α und b die beiden Magnetschenkel, c, d und e die Anschlüsse des Drehstromnetzes, / und g die beiden Ankerteile.The well-known three-phase zero voltage magnets are provided with three coils. These zero-voltage magnets have the disadvantage that if only one phase is de-energized, the armature does not fall off with certainty, but often sticks because it is still held in place by the other two legs. The three-phase zero-voltage magnet described below avoids this disadvantage. It consists of only two magnetic legs on which the voltage coils are attached. The anchor consists of two parts and is set up so that one part can fall off independently of the other.
In the drawing, α and b denote the two magnet legs, c, d and e the connections of the three-phase network, / and g the two armature parts.

Wird z. B. die Phase c unterbrochen, so wird die Spule am Schenkel a spannungslos, wodurch der Anker / abfällt und die Auslösung bewirkt. Bei Unterbrechung der an e angeschlossenen Phase fällt der Anker g ab, und bei Unterbrechung der an d angeschlossenen Phase wirken die beiden Spulen, da sie entgegengesetzt gewickelt sind, gegeneinander, wodurch sich ihre Wirkung aufhebt und beide Ankerhälften zugleich abfallen.Is z. B. the phase c is interrupted, the coil on leg a is de-energized, whereby the armature / drops and causes the trip. When the phase connected to e is interrupted, the armature g drops out, and when the phase connected to d is interrupted, the two coils, since they are wound in opposite directions, act against each other, whereby their effect is canceled out and both armature halves drop out at the same time.

Claims (1)

Patent-Anspruch:Patent claim: Dreiphasiger Nullspannungsmagnet mit zwei Spulen, dadurch gekennzeichnet, daß die beiden Spannungsspulen auf den Schenkeln eines zweischenkeligen Magneten entgegengesetzt gewickelt sind und der Anker aus zwei Teilen besteht, so daß jede Hälfte einzeln abfallen kann.Three-phase zero voltage magnet with two coils, characterized in that the two voltage coils are wound in opposite directions on the legs of a two-legged magnet and the anchor consists of two parts so that each half can fall off individually.
DEE28981D Three-phase zero voltage magnet Expired DE400436C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEE28981D DE400436C (en) Three-phase zero voltage magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE28981D DE400436C (en) Three-phase zero voltage magnet

Publications (1)

Publication Number Publication Date
DE400436C true DE400436C (en) 1924-08-21

Family

ID=7073662

Family Applications (1)

Application Number Title Priority Date Filing Date
DEE28981D Expired DE400436C (en) Three-phase zero voltage magnet

Country Status (1)

Country Link
DE (1) DE400436C (en)

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