DE435866C - Automatic switch for three-phase motors to switch off when a phase is missing - Google Patents
Automatic switch for three-phase motors to switch off when a phase is missingInfo
- Publication number
- DE435866C DE435866C DEA42363D DEA0042363D DE435866C DE 435866 C DE435866 C DE 435866C DE A42363 D DEA42363 D DE A42363D DE A0042363 D DEA0042363 D DE A0042363D DE 435866 C DE435866 C DE 435866C
- Authority
- DE
- Germany
- Prior art keywords
- switch
- phase
- missing
- contacts
- motors
- 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
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
- H02H3/12—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 underload or no-load
- H02H3/13—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 underload or no-load for multiphase applications, e.g. phase interruption
Landscapes
- Motor And Converter Starters (AREA)
Description
DEUTSCHES REICHGERMAN EMPIRE
AUSGEGEBEN AM 21. OKTOBER 1926ISSUED OCTOBER 21, 1926
REICHSPATENTAMTREICH PATENT OFFICE
PATENTSCHRIFTPATENT LETTERING
- JVl 435866 KLASSE 21 c GRUPPE 71- JVl 435866 CLASS 21c GROUP 71
(A (A. 42363 42363 VIIII21C5)VIIII21C 5 )
Otto Aue in Frankenthal, Pfalz,Otto Aue in Frankenthal, Palatinate,
Selbsttätiger Schalter für Drehstrommotoren zum Abschalten beim Ausbleiben einer Phase. Patentiert im Deutschen Reiche vom 1. Juni 1924 ab. Automatic switch for three-phase motors to switch off if a phase is missing. Patented in the German Empire on June 1, 1924.
Die Erfindung bezieht sich auf einenThe invention relates to a
selbsttätigen Schalter für Drehstrommotoren zum Abschalten beim Ausbleiben einer Phase. Das Wesen der Erfindung besteht darin, daß die beweglichen Kontakte desautomatic switch for three-phase motors to switch off if a Phase. The essence of the invention is that the movable contacts of the
Schalters auf einer Isoliertraverse angeordnet sind, die beiderends von den mit ihr gelenkig verbundenen Solenoidkernen zweier Phasenstromspulen entgegen dem Eigengewicht des Traversengestänges in Kontakt-Switches are arranged on an insulating crossbar, which is articulated at both ends with it connected solenoid cores of two phase current coils against the weight of the crossbar in contact
lage mit den festen Kontakten des Schalters gehalten wird. ' Der ■ Schalter zeichnet sich durch große Einfacheit und sichere Wirkungsweise aus.position with the fixed contacts of the switch. 'The ■ switch stands out through great simplicity and safe mode of operation.
S Die Abbildung veranschaulicht den Schalter in der Ausschaltstellung. Er wird zwischen die dreipolige Sicherung und den Motor eingebaut. Es bezeichnen Ü, V-, W die beweglichen Kontakte des Schalters, dieS The illustration shows the switch in the off position. It is installed between the three-pole fuse and the motor. Ü, V-, W denote the moving contacts of the switch, the
to fest an einer Isoliertraverse JD sitzen. X, Y1 Z sind die festen Kontakte, die zum nicht gezeichneten Motor führen. Mit A und B sind zwei Stromspulen bezeichnet, die in den beiden äußeren Phasen liegen. Die Spulen A und B sind einerseits an die Kontakte U und W angeschlossen und führen anderseits zu einem von Hand aus zu betätigenden Ausschalter C. Die Kerne der Spulen A und B sind mit den Enden der Iso-to sit firmly on an insulating traverse JD. X, Y 1 Z are the fixed contacts that lead to the motor (not shown). A and B denote two current coils which are in the two outer phases. The coils A and B are connected on the one hand to the contacts U and W and on the other hand lead to a manually operated switch C. The cores of the coils A and B are connected to the ends of the insulating
ao liertraverse D bei e1 und e11 gelenkig verbunden. ao liertraverse D articulated at e 1 and e 11.
Die Wirkungsweise ist folgende: Zunächst wird der Handschalter C eingeschaltet. Alsdann wird durch eine geeignete VorrichtungThe mode of operation is as follows: First, the hand switch C is switched on. Then by a suitable device
«5 die Traverse D angehoben, bis ihre Kontakte U1 V1 W die festen Kontakte X1 Y1 Z berühren. In diesem Augenblick fließt auch Strom durch die Spulen A und B. Diese ziehen ihre Kerne ein und sichern so entgegen dem Gewicht des Traversengestänges die Schließung der Kontakte U, V, W mit den Kontakten X, Y, Z. Die Vorrichtung zum Anheben der Traverse ist jetzt ausgeschaltet. Schmelzen in den Phasenleitungen A und B beide Sicherungen durch, so fällt die Isoliertraverse D geradlinig herunter. Schmilzt aber nur eine Sicherung (z. B. in der Phase B) durch, so fällt zunächst nur die entsprechende Seite der Traverse D ab, weil nur die Spule B stromlos wird. Die Schräglage der Traverse bewirkt aber eine Trennung der Kontakte U und X, so daß auch die Spule A stromlos wird und somit der Schalter den Motor abschaltet.«5 the traverse D is raised until its contacts U 1 V 1 W touch the fixed contacts X 1 Y 1 Z. At this moment, current also flows through the coils A and B. These pull in their cores and thus secure the closure of the contacts U, V, W with the contacts X, Y, Z against the weight of the truss rod. The device for lifting the truss is now off. If both fuses melt in the phase lines A and B , the insulating crosspiece D falls down in a straight line. However, if only one fuse blows (e.g. in phase B), only the corresponding side of the crossbeam D will initially drop because only the coil B is de-energized. The inclined position of the traverse causes the contacts U and X to be separated, so that the coil A is also de-energized and the switch thus switches off the motor.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA42363D DE435866C (en) | 1924-06-01 | 1924-06-01 | Automatic switch for three-phase motors to switch off when a phase is missing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA42363D DE435866C (en) | 1924-06-01 | 1924-06-01 | Automatic switch for three-phase motors to switch off when a phase is missing |
Publications (1)
Publication Number | Publication Date |
---|---|
DE435866C true DE435866C (en) | 1926-10-21 |
Family
ID=6933044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA42363D Expired DE435866C (en) | 1924-06-01 | 1924-06-01 | Automatic switch for three-phase motors to switch off when a phase is missing |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE435866C (en) |
-
1924
- 1924-06-01 DE DEA42363D patent/DE435866C/en not_active Expired
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