GE LP11U Manual De Usuario

 

 

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The UPS stores electric energy in batteries. This allows the UPS to supply output power even when the 

incoming utility power is cut off completely.  

Energy is stored as Direct Current (DC), while input and output energy must be Alternating Current (AC). 

Therefore the UPS contains an input converter (AC to DC) and an output converter (DC to AC). (fig.2) 

 

 

Under normal conditions, energy from the utility is channeled through the input converter, which supplies the 

output converter and the battery charger. The batteries are kept in a fully charged state, and the output 

converter synthesizes a completely new AC output sine wave to supply the load (electrical equipment). 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

In the event of a utility power failure (i.e. absent or outside tolerance) the system uses the energy reserve 

stored in the battery to continue to produce AC power, ensuring unbroken output (fig. 3). No interruption or 

alteration will ever be noticed in the output power. 

In the event of an extended utility failure, the output converter will stop when the battery has been discharged. 

At this point, the UPS is no longer able to power the connected equipment. 

When the utility is re-established within tolerance, the output converter will be supplied again by the input 

converter and the batteries will be recharged, making them ready to support future power failures. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INPUT: 
MAINS POWER WITH DISTURBANCES 

BYPASS 

FILTER 

P.F. = 1 

CONVERTER/ 

RECTIFIER/ 

BATTERY 

CHARGER 

BACKFEED 

PROT. 

OPTIONAL 

BATTERY 

EXTENSION 

BATTERY 

MICROPROCESSOR CONTROL 

SYSTEM

ON/OFF 

OUTPUT 

CONVERTER 

MANUAL BYPASS 

SWITCH

UTILITY INPUT 

OUTPUT: 
PERFECT UPS POWER 

RFI 

FILTER 

OPTION 

SLOTS FOR:

 

RPA CARD 

 

SNMP CARD

 

RELAY CARD

STANDARD 

INSTALLED: 

 

RS232/ 

CONTACT 

INTERFACE 

FRONT 

PANEL 

TO LOAD 

RFI 

FILTER 

STATIC 

BYPASS 

OUTPUT 

TRANSFORMER 

NO INPUT: 
UTILITY FAILURE 

BYPASS 

FILTER 

P.F. = 1 

CONVERTER/ 

RECTIFIER/ 

BATTERY 

CHARGER 

OPTIONAL 

BATTERY 

EXTENSION 

BATTERY 

MICROPROCESSOR CONTROL 

SYSTEM

ON/OFF 

OUTPUT 

CONVERTER 

MANUAL BYPASS 

SWITCH

OUTPUT: 
PERFECT UPS POWER 

RFI 

FILTER 

OPTION 

SLOTS FOR:

 

RPA CARD 

 

SNMP CARD

 

RELAY CARD

STANDARD 

INSTALLED: 

 

RS232/ 

CONTACT 

INTERFACE 

FRONT 

PANEL 

TO LOAD 

RFI 

FILTER 

STATIC 

BYPASS 

OUTPUT 

TRANSFORMER 

BACKFEED 

PROT.