Vertiv Liebert GXT5-2000LVRT2UXL User Manual

GXT5 Description12
1.6. Major Internal Components and Operating Principle
Figure 1-11 on the next page, shows the UPS operating principle� Table 1-2 on the next page, describes the
function of the major components in the UPS�
NOTE: Figure 1-11 below, is one example of basic operation� The actual I/O connections for the various models
may be divided into dierent types� See Hardwired Input/Output Connections on page 21�
Figure 1-11 Basic Operating Principle Diagram
Table 1-2 Major Components
ITEM COMPONENT OPERATION/FUNCTION
1
Transient Voltage Surge
Suppression (TVSS)
and EMI/RFI Filters
Provide surge protection� Filter electromagnetic interference (EMI) and radio frequency interference (RFI)� Minimize
surges or interference present in the utility power and protect devices connected on the same branch as the UPS�
2 Battery Charger
Regulates input AC power to continuously float-charge the batteries� Batteries are charged when the UPS is plugged
in, even when not powered-on�
3 Batteries
Valve-regulated, non-spillable, lead-acid batteries�
NOTE: To maintain battery design life, operate the UPS in an ambient temperature of 59 °F to 77 °F (15 °C to 25
°C).
4
DC-to-DC
Converter
Raises the DC voltage from the battery to the optimum operating voltage for the inverter� This allows the
inverter to operate continuously at its optimum eiciency and voltage, thus increasing reliability
5
Rectifier/Power
Factor
Correction
(PFC) Circuit
In normal operation, converts utility AC power to regulated DC power for use by the inverter while ensuring that
the wave shape of the input current used by the UPS is near ideal� Extracting this sine-wave input current ensures
eicient use of utility power and reduces reflected harmonic distortion making cleaner power available to devices
that are not protected by the UPS�
6 Inverter
In normal operation, inverts the DC output of the PFC circuit into precise, regulated sine-wave AC power� When utility
power fails, the inverter receives DC power from the DC-to-DC converter� In either operating mode, the UPS inverter
remains on-line, generating clean, precise, regulated AC-output power�
7 Internal Bypass
In the unlikely event of UPS failure such as overload or over-temperature, automatically transfers the connected load
to bypass�
To manually transfer the connected load from inverter to bypass, see Transferring from Normal to Bypass Mode on
page 34�
8 Outlet group Output receptacles�

Vertiv Liebert GXT5-2000LVRT2UXL Specifications

General

Brand	Vertiv
Model	Liebert GXT5-2000LVRT2UXL
Category	UPS
Language	English