DE1588421C

DE1588421C - Automatic power supply system for direct current consumers

Info

Publication number: DE1588421C
Application number: DE19671588421
Authority: DE
Inventors: Klaus Dr Ing 6078 Neu Isenburg Fnsse W F 4788 War stein Holznienkemper Hugo 4785 Belecke Boettger
Original assignee: Licentia Patent Verwaltungs GmbH, 6000 Frankfurt
Priority date: 1967-02-28
Filing date: 1967-02-28
Publication date: 1973-02-15

Description

wird in Betrieb gesetzt. Über das Ventil 7 werden die Verbraucher zunächst auf 26 Zellen der Batterie 9 umgeschaltet und mittels der Ausgleichseinrichtung 10 die Verbraucherspannung konstant gehalten. Sinkt dann infolge der Belastung die Batteriespannung unter einen bestimmten Wert ab, dann spricht das Meßrelais 8 an und steuert mit Hilfe der Kontakte 6 und 6' die Umschaltung der Verbraucher auf die ganze Batterie 9. Dabei wird der Verriegelungskontakt 6 geschlossen, so daß bei Netzrückkehr der Arbeitskontakt 4' des Steuerschützes 4 wieder geschlossen wird.is put into operation. About the valve 7 are the Loads first switched to 26 cells of the battery 9 and by means of the compensation device 10 the consumer voltage kept constant. If the battery voltage drops below the load a certain value, then the measuring relay 8 responds and controls with the help of the contacts 6 and 6 'the switching of the consumer to the whole battery 9. The locking contact is activated 6 closed, so that when the power returns, the normally open contact 4 'of the control contactor 4 is closed again will.

' Erfolgt die Netzrückkehr, bevor das Meßrelais 8 bei einer bestimmten Batteriespannung angesprochen hat, so bleibt der Kontakt 4' des zentralen Steuerschützes 4 so lange geöffnet, bis das Meßrelais 8 anspricht, die Umschaltung der Batterie mittels des Kontaktes 6' erfolgt und dadurch das Schließen des Arbeitskontaktes 4' freigegeben wird.'If the mains is returned before the measuring relay 8 is triggered at a certain battery voltage has, the contact 4 'of the central control contactor 4 remains open until the measuring relay 8 responds, the battery is switched by means of the contact 6 'and thereby the closing of the Working contact 4 'is released.

Derselbe Vorgang läuft unter Mitwirkung des Arbeitskontaktes 3' ab, wenn die Gleichrichter 5 ausgeschaltet und dann wieder eingeschaltet werden, bevor das Meßrelais 8 angesprochen hat.The same process takes place with the assistance of the normally open contact 3 'when the rectifier 5 is switched off and then switched on again before the measuring relay 8 has responded.

Bei Störung der auf Betrieb eingestellten Gleichrichter 5 wird mit Hilfe des Arbeitskontaktes 3' dasIn the event of a fault in the rectifier 5 set to operation, the normally open contact 3 'is used to activate the

ίο zentrale Steuerschütz 4 zum Abfallen gebracht und die Anlage auf Batteriebetrieb umgeschaltet. Erst nachdem das Meßrelais 8 bei einer bestimmten Batteriespannung wieder angesprochen hat, wird der Kontakt 4' des Steuerschützes 4 geschlossen und das Einschalten der auf Reserve stehenden Gleichrichter freigegeben.ίο central control contactor 4 brought down and the system switched to battery operation. Only after the measuring relay 8 has reached a certain battery voltage has responded again, the contact 4 'of the control contactor 4 is closed and the Activation of the reserve rectifier enabled.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

1 21 2

automatic power supply of the entrance

Claim: to set up the named type in such a way that the above erläu

processes to maintain constant

Automatic power supply system for user voltage no longer depend on whether a DC load with an AC power supply rectifier fails or whether the AC power supply only fails for a short time,
judges, with a subdivided battery and a This object is achieved according to the invention

Compensating device and with a control that triggers a control contactor with a normally open contact tion of the system _ provided changeover contactor is provided, which depends on the switch-on in such an arrangement that the voltage is the io mains voltage, and that in series with the The battery can be monitored and that, when the control contactor is loaded, a working contact is a working capacitor divided battery is switched by the consumer clock of another contactor, which is in as a result of a power failure, the switch-on dependency is switched from undisturbed operation Consumers on the whole battery controllable the power supply rectifier is, which in is, characterized in that a 15 series of normally open contacts is one of the Control contactor (4) with a normally open contact (4 ') changeover contactor interlocking contact is provided, which is connected in parallel depending on the switch-on.

the nominal voltage, and that in series with a system set up in this way is a

the normally open contact (4 ') of the control contactor (4) any rectifier fault or even a power failure that just passed a normally open contact (3') of a further contactor 20 is always switched as a so-called permanent switch, which is evaluated as a switch-on dependency on the power failure, and in this way it is the The undisturbed operation of the power supply ensures that the controlled function rectifier (5) is connected to the switching contactor switched locking _{contact a5} On the basis of the drawing, a (6) is connected in parallel below. Embodiment of the invention described.

In the drawing is the circuit arrangement

an automatic power supply system, in which two power supply rectifiers 5 30 via a line 1 to an alternating current network of

The invention relates to an automatic 220 V operated and in which a valve 7 for the power supply system for direct current consumption with uninterrupted switching of a battery 9, with power operated on an alternating current network, for example a subdivided 26/30 cell battery supply rectifier with a subdivided battery can, is provided. A control AC voltage is supplied to the two power supply rectifiers 5 through a line 2 terie and a compensating device and with a 35 intended to control the system. The DC contactor in such an arrangement that the voltage converter 5 can optionally be monitored for operation or reserve of the battery and that can be set when loaded. A control contactor 4, which is central to the subdivided battery and has a normally open contact 4 ', is connected to the alternating current network. Mains is attracted (closed). With the such a power supply system is known working contact 4 'is a working contact 3' of a white (German patent 976 440). 'teren contactor is connected in series, which is attracted to the generation of approximately constant operation of the rectifier 5 and in the case of consumer energy the well-known 45 disturbance of the same via the line of action 3 to the power supply system regulated power supply traps (opened) . With 6 is a switched by rectifier for load supply and battery a battery changeover contactor locking charge, also a subdivided accumulator battery management contact referred to, the series connection of the with stem and additional cells and with inter- working contacts 3 'and 4' as a locking contact break-free switching device and a 50 is connected in parallel. The battery voltage is monitored by a measuring relay 8 equalizing device for generating a constant one, which at load voltage when the battery is discharged. load of the battery 9 on the falling of the battery-This known device works when a voltage responds and the switching of the power failure in such a way that first the battery is discharged from the due to the power failure via the valve 7 to the stem cells and at the same time the compensation 55 26- Cell partial battery switched consumer is operated on device. After sinking the part- controls the whole battery (30 cells). For the constant battery voltage, an interruption is also switched over to the overall battery voltage of the consumer voltage. This pre-compensation device 10 is provided,
gears must be controlled by precisely adjusted voltage measurement. 60 judge 5 the consumers via a line 11, and in the event of a failure of the power supply the battery 9 is on trickle charge. A contactor judge additional complicated interlocking 13 functions are required to bypass the compensation device 10 in order to avoid impermissible values of the is closed. The normally open contact 4 'is to prevent the consumer voltage. closed, and the sequence of the above-described contact 6 equivalent switched contact 6 'bcncn processes' can be disrupted via a locking remote control if the battery 9 cells are switched on too short. In the event of an early power failure. Power failure opens the normally open contact 4 ', the contactor The purpose of the filling is based, a 13 is opened. and the Ausglekhseinikhtung IO