AEG 1.04 Manuale Utente

 

51 

DC/DC booster 

Circuit technology for increasing a DC voltage to a higher 
voltage level 

SBS Static Bypass Switch 

Appliance protection 

Term from overvoltage technology

 

Classic mains overvoltage protection consists of lighting 
surge arrester (class B), overvoltage protection (class C) 
and, finally, the so-called appliance protection (class D)  
- see also the 

http://www.phoenixcontact.com

 website 

(topic "TRABTECH") 

IGBT Insulated Gate Bipolar Transistor

 

The latest design of high-performance transistors with 
minimum control power requirement (MOSFET 
structure) and minimum losses on the output side 
(structure of a bipolar transistor) 

Class D 

See appliance protection 

LED Light Emitting Diode

 

Electronic semi-conductor component, commonly 
referred to as an LED, used for optic signalling. 

PFC Power Factor Correction

 

Circuit technology for minimising system disturbances 
(particularly important when connecting non-linear 
loads) 

PWM Pulse Width Modulation

 

Here: circuit technology for generating a sinusoidal 
voltage of the highest quality from an existing DC 
voltage 

SNMP Simple Network Management Protocol

 

A protocol encountered frequently in networks for 
managing / handling components 

VFD Output 

Voltage and Frequency Dependent from mains 

supply. The UPS output is dependent on mains voltage 
and frequency fluctuations. Earlier designation: 
OFFLINE 

VI Output 

Voltage Independent from mains supply

 

The UPS output is dependent on mains frequency 
fluctuations, but the mains voltage is prepared by 
electronic / passive voltage control units. Earlier 
designation: LINE-INTERACTIVE 

VFI

 

Output Voltage and Frequency Independent from 
mains supply. The UPS output is independent of mains 
voltage and frequency fluctuations. Earlier designation: 
ONLINE