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
Links
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000001419 dependent effect Effects 0.000 claims 1
- 230000005611 electricity Effects 0.000 description 2
- 101100400378 Mus musculus Marveld2 gene Proteins 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit 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
- H02J9/06—Circuit 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
- H02J9/08—Circuit 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)
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)
| 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 |
-
1944
- 1944-04-29 CH CH239034D patent/CH239034A/en unknown
Cited By (1)
| 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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