Liebert GXT3 Major Components, Transient Voltage Surge Suppression TVSS and EMI/RFI Filters

			Product Description
Figure 4 Rear panel components, Liebert GXT3 230V 3000VA models
Liebert IntelliSlot Port USB Port	Input Circuit	Output Circuit	C20 Input Receptacle
	Breaker	Breakers

		External
			Battery	C13 Output
Terminal Block	Cooling Fan				C19 Output
		Connector
Communication				Receptacles	Receptacle

1.4Major Components

The operating principle of the UPS is shown in Figure 5.

Figure 5 Operating principle diagram

Input	Dynamic	Output
	Bypass

L1	TVSS & EMI/
	RFI Filters

Rectifier /

PFC

Inverter L1

DC-to-DC

Converter

N G

Battery Charger

Battery

N

G

The UPS is composed of mains input, TVSS and EMI/RFI filters, rectifier/PFC, inverter, battery charger, DC-to-DC converter, battery, dynamic bypass and UPS output.

Transient Voltage Surge Suppression (TVSS) and EMI/RFI Filters

The Liebert GXT3 has surge protection and filters that protect the connected load from power surges and sags, electromagnetic interference (EMI) and radio frequency interference (RFI). These features can minimize any surges or interference present in the mains power. The filters also prevent surges or interference generated by the UPS from adversely affecting other devices connected on the same branch as the UPS.

Liebert® GXT3™ 6