Appendix 1 Glossary - Emerson Liebert APM 90 User Manual

AC Alternating current
BCB Battery circuit breaker
CSA Cross sectional area
CT Center tap
DBS Dual bus system
DC Direct current
DIP dual in-line package
DSP Digital signal processor
EMC Electromagnetic compatibility
EOD End-of-discharge
EPO Emergency power off
IGBT Integrated gate bipolar transistor
LCD Liquid crystal display
LBS Load bus synchronization
MCB Miniature circuit breaker
MCCB Moulded-case circuit breaker
PE Protective earth
PWM Pulse width modulation
RCCB Residual current circuit breaker
RCD Residual current detector
SCR Silicon-controlled rectifier
STS Static transfer switch
SVPWM Space vector pulse width modulation
UPS Uninterruptible power system
VRLA Valve-regulated lead-acid
Liebert APM 90 Integrated Modular UPS User Manual

Appendix 1 Glossary

Appendix 1 Glossary 75