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CH239034A - Emergency power group for shelters. - Google Patents

Emergency power group for shelters.

Info

Publication number
CH239034A
CH239034A CH239034DA CH239034A CH 239034 A CH239034 A CH 239034A CH 239034D A CH239034D A CH 239034DA CH 239034 A CH239034 A CH 239034A
Authority
CH
Switzerland
Prior art keywords
emergency power
power group
fan
group according
switch
Prior art date
Application number
Other languages
German (de)
Inventor
Cie Aktiengesellschaft Boveri
Original Assignee
Bbc Brown Boveri & Cie
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Publication of CH239034A publication Critical patent/CH239034A/en

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/08Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems requiring starting of a prime-mover

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Eletrric Generators (AREA)

Description

  

      Notstromgruppe    für Schutzräume.         Für    Schutzräume benötigt man normaler  weise einen motorangetriebenen Ventilator  zum Ansaugen filtrierter     Frischluft    sowie eine       Notstromgruppe    zur Erzeugung elektrischer  Energie bei Ausfall des Ortsnetzes. Die Not  stromgruppe besteht vorzugsweise aus einem  Verbrennungsmotor, z. B. einem Dieselmotor,  und einem direkt mit ihm gekuppelten elek  trischen Generator.  



  Nach der     Erfindung    lässt sich sowohl an  Platz als auch an Kosten für die Anlage da  durch sparen, dass man den Ventilator mit  der     Notstromgruppe    vereinigt, indem der       Drehstrommotor    zum Antrieb des Ventilators  zugleich den     kondensatorerregten    Generator  der     Notstromgruppe    bildet, deren     Antriebs-          Verbrennungsmotor    durch eine lösbare Kupp  lung mit der     Ventilatorgruppe    verbunden ist  und bei Notbetrieb ausser dem Generator auch  den Ventilator antreibt.  



  In der Zeichnung ist ein Ausführungs  beispiel für die Erfindung schematisch dar  gestellt. Normalerweise wird die elektrische    Energie vom Fremdnetz     n    bezogen und speist  den     Kurzschlussankermotor    m, der den Venti  lator     u    antreibt. Ausserdem werden aus dem  Netz<I>n</I> bei     a    wichtige, bei b entbehrliche  Stromverbraucher gespeist.

   Fällt das Netz n  aus, so wird zunächst der Doppelschalter s       geöffnet    und dann der     Dieselmotor        d    ange  lassen, wobei sich nach Erreichen der Be  triebsdrehzahl die     Fliehkraftkupplung        k    ein  rückt und der Motor<I>d</I> die Maschine     m    nebst  dem Ventilator<I>v</I>     antreibt.    Die     Maschine   <I>m</I>  arbeitet nun, erregt durch den Kondensator c,  als Generator und speist bei     a        die    unent  behrlichen Stromverbraucher mit Wechsel  strom,

   dessen Spannung durch die vom Flieh  kraftregler des     Dieselmotors        d    konstant ge  haltene Drehzahl und dessen Frequenz durch  diese Drehzahl und die     Polzahl    der Maschine m       bestimmt    ist. Zweckmässig sind     Mittel    vor  gesehen, um die     Drebstrommaschine    m bei  Motorbetrieb in Stern, bei     Generatorbetrieb          in    Dreieck schalten zu können, damit  ihre     Anlaufscheinleistung        innerhalb    zulässiger  Grenzen bleibt.



      Emergency power group for shelters. For shelters, you normally need a motor-driven fan to suck in filtered fresh air and an emergency power group to generate electrical energy in the event of a breakdown in the local network. The emergency power group preferably consists of an internal combustion engine, e.g. B. a diesel engine, and a directly coupled with it elec tric generator.



  According to the invention, both space and costs for the system can be saved by combining the fan with the emergency power group, in that the three-phase motor for driving the fan also forms the capacitor-excited generator of the emergency power group, the drive combustion engine of which is replaced by a detachable one Coupling is connected to the fan group and in emergency operation also drives the fan in addition to the generator.



  In the drawing, an execution example for the invention is shown schematically. The electrical energy is normally drawn from the external network n and feeds the squirrel-cage armature motor m, which drives the venti lator u. In addition, important electricity consumers that can be dispensed with at b are fed from the network <I> n </I>.

   If the network n fails, the double switch s is first opened and then the diesel engine d is left on, the centrifugal clutch k engaging after the operating speed has been reached and the motor <I> d </I> the machine m and the fan <I> v </I> drives. The machine <I> m </I> now works, excited by the capacitor c, as a generator and feeds the indispensable electricity consumers with alternating current at a,

   whose voltage is determined by the speed kept constant by the centrifugal regulator of the diesel engine d and its frequency is determined by this speed and the number of poles of the machine m. Means are expediently seen in order to be able to switch the three-phase machine m with motor operation in star, with generator operation in delta, so that its starting apparent power remains within permissible limits.

 

Claims (1)

PATENTANSPRUCH: Notstromgruppe für Schutzräume mit Ven tilator und andern Stromverbrauchern, gekenn zeichnet durch Vereinigung des Ventilators mit der Notstromgruppe derart, dass die mit ihm mechanisch gekuppelte Drehstrommaschine der Notstromgruppe bei Netzbetrieb als An triebsmotor des Ventilators, bei Notbetrieb jedoch als kondensatorerregter Generator, der mit dem ihn und den Ventilator antreiben den Verbrennungsmotor durch eine lösbare Kupplung verbunden ist, elektrisch wenigstens auf die unentbehrlichen Stromverbraucher arbeitet. PATENT CLAIM: Emergency power group for shelters with fan and other power consumers, characterized by the combination of the fan with the emergency power group in such a way that the three-phase machine of the emergency power group mechanically coupled with it acts as the drive motor of the fan in mains operation, but as a capacitor-excited generator with the it and the fan drive the internal combustion engine is connected by a releasable coupling, works electrically at least on the indispensable power consumers. UNTERANSPRti CHE 1. Notstromgruppe nach Patentanspruch, dadurch gekennzeichnet, dass die lösbare Kupp lung eine sich bei bestimmter Drehzahl des Verbrennungsmotors selbsttätig einrückende Flielrkraftkupplung ist. 2. Notstromgruppe nach Patentanspruch, dadurch gekennzeichnet, dass unentbehrliche und entbehrliche. Stromverbraucher an zwei verschiedene Speiseleitungen angeschlossen sind. 3. Notstromgruppe nach Unteranspruch 2, dadurch gekennzeichnet, dass der Netzschalter mit einem Schalter in der Speiseleitung für die entbehrlichen Stromverbraucher gekup pelt ist. SUB-CLAIMS 1. Emergency power group according to patent claim, characterized in that the releasable coupling is a centrifugal clutch which automatically engages at a certain speed of the internal combustion engine. 2. Emergency power group according to claim, characterized in that indispensable and dispensable. Power consumers are connected to two different feed lines. 3. Emergency power group according to dependent claim 2, characterized in that the power switch is kup pelt with a switch in the feed line for the dispensable power consumers. 4. Notstromgruppe nach Patentanspruch, dadurch gekennzeichnet, dass Mittel vorhan den sind, um die Drehstrommaschine bei Motor betrieb in Stern, bei Generatorbetrieb irr Drei eck schalten zu können. 4. Emergency power group according to claim, characterized in that means are IN ANY to be able to switch the three-phase machine in star mode when the motor is in operation and triangle when operating in the generator mode.
CH239034D 1944-04-29 1944-04-29 Emergency power group for shelters. CH239034A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH239034T 1944-04-29

Publications (1)

Publication Number Publication Date
CH239034A true CH239034A (en) 1945-09-15

Family

ID=4460978

Family Applications (1)

Application Number Title Priority Date Filing Date
CH239034D CH239034A (en) 1944-04-29 1944-04-29 Emergency power group for shelters.

Country Status (1)

Country Link
CH (1) CH239034A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0130242A1 (en) * 1983-06-29 1985-01-09 SOCIETA' TECNICO INDUSTRIALE FRIGORIFERA S.T.I.F. S.p.A. Apparatus for using an induction motor as an electrical generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0130242A1 (en) * 1983-06-29 1985-01-09 SOCIETA' TECNICO INDUSTRIALE FRIGORIFERA S.T.I.F. S.p.A. Apparatus for using an induction motor as an electrical generator

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