Справочник Пользователя для Toshiba 4200FA CT/XT

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TOSHIBA 
 
6.0 Operating the UPS 
 
6.1 
AC Input Mode (Normal Operation) 
 
The following illustration shows circuit power flow when the UPS is operating normally in the AC Input 
 
Mode. The converter of the UPS, including a boost chopper circuit, converts the AC input power into 
 
DC power. The boost chopper circuit maintains a constant voltage and provides current limiting for 
 
charging the batteries. It also supplies a DC voltage of the proper level to the inverter section. The 
 
inverter section generates a high quality sine wave output voltage. The batteries are maintained in a 
 
constantly charged state when the UPS is in the “Normal Operation Mode.” 
 
 
 
 
Power flow in AC Input Mode 
 
 
 
Converter
 
Inverter
 
Bypass
Charger/ 
Chopper
 
Isolating 
XFMR
 
External 
Batteries
 
Output 
Power 
MCCB
 
MBS 
Input 
Power 
Power Flow
 
4200FA CT/XT User’s Manual 
 
 
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