MGE UPS Systems 3.5 to 21 kVA N+1 - Manual (Page 48)

BYPASS See “Static Transfer switch”.
Bypass Maintenance bypass; wrap-around manual maintenance bypass using the optional bypass cir-
cuit breaker Q3BP in conjunction with circuit breaker Q4S and isolation circuit breaker Q5N.
Bypass AC Input Mains 2.
BYPASS mode See “off-line mode”.
Carrier The company or individual responsible for delivering goods from one location to another.
C Common.
CB Circuit breaker.
cm Centimeter.
Comm. Communication.
Conduit A flexible or rigid tube enclosing electrical conductors.
Cold start See "Start on battery power".
Connection module Unit grouping the receptacles for connection to the AC-power source and the equipment.
C.S.S. Customer Support Service.
Current rating The maximum current that a conductor or equipment can carry reliably without damage.
dB Decibels.
DC Direct current.
dBA Decibel Adjusted.
dBrnC Decibel above reference noise.
DC or dc Direct current, or voltage.
Digital Meter The LCD display on the front panel of inverter system.
Double conversion The power supplied to the connected equipment is completely regenerated by continuous
double conversion, i.e. the AC power from the AC-power source is rectified (AC - DC),
then converted back (DC - AC) to AC power.
Earth ground A ground circuit that has contact with the earth.
Electrician Refers to an installation electrician qualified to install heavy-duty electrical components in
accordance with local codes and regulations. Not necessarily qualified to maintain or repair
electrical or electronic equipment.
FET Field effect transistor.
Freq. Frequency.
Frequency slew rate The change in frequency per unit of time. Given in term of Hz per second (Hz/sec.).
Glossary
3.5 to 21 kVA N+1 Inverter
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