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Section VI
Glossary
AC –
Alternating current (normally “AC”).
AC POWER –
AC input to the UPS. Also identified as “UPS Input”.
ALARM –
An abnormal condition within the UPS.
ALARM SIGNAL –
A loud piercing electronic tone signaling an alarm condition.
APPARENT POWER (kVA) –
The product of voltage and current. This is used to state the maximum rating of power
generating devices.
AUTO RETRANSFER –
A feature which allows the Static Bypass Switch to place the UPS back on line without
manual intervention.
CIRCUIT BREAKER PANEL –
That portion of the cabinet behind the right–hand door, containing the UPS Input Circuit
Breaker, Static Bypass Circuit Breaker, Bypass Circuit Breaker and Output Circuit
Breaker.
CURRENT LIMIT –
Electronically governing the maximum current output from the rectifier and/or the
inverter.
DC –
Direct current (normally “DC”).
