12
REFUsol 48K-UL
REFU Elektronik GmbH
2.3.8
Lockout and Tagout Requirements
To prepare the inverter for maintenance or troubleshooting, you must deenergize and isolate the AC and the
DC interface energy sources before working on the unit.
Pos : 18 /I nverter M anuals/ Sicher heit shi nweis e/ Acronyms and fr equentl y used T er ms/ WR @ 2\ mod_1422895020309_641. doc x @ 13535 @ 2 @ 1
2.4
Acronyms and Frequently Used Terms
Term
Description
A/D
Analog to digital conversion
ADU
Arc Fault Detection Unit
AFCI
Arc Fault Circuit Interrupter
AFI
Insulation fault
ANSI
American National Standards Institute
BEMS
Building energy management system
CFM
Cubic feet per minute
CPUC
California Public Utilities Commission
Derating
A controlled reduction in performance, usually dependent on component
temperatures.
DHCP
Dynamic host configuration protocol
DNS
Domain name service
DSP
Digital signal processor
DVI
Digital video interface
EMI
Electromagnetic interference
ESD
Electrostatic discharge
GEC
Grounding electrode conductor
GFDI
Ground fault detector interrupter
IEEE
Institute of Electrical and Electronics Engineers
IGBT
Insulated gate bipolar transistor
IP
Internet protocol
Islanding
Islanding occurs when the inverter continues to feed power to a de-energized
AC main circuit.
LOTO
Lockout Tagout
MCM
1000 circular mils utilized in wire sizing
MPPT
Maximum power point tracking
NTP
Network time protocol