On-line UPS SR-LCD Series

single-phaseindustrial19" rack

UPS SINGLE PHASE ON-LINE RACK 19”, SR 1 ÷ 3kVA SERIES The SR series on line double conversion UPS with full time Digital Signal Processor control technology is the perfect solution for mission critical users who demand high reliability, availability and performance from a UPS. The rack/Tower convertible design, input power factor correction, and high efficiency provide a superior level of power quality for sensitive electronic equipment and computers loads. PRINCIPLES OF WORKING The backup series is composed by: Rectifier, Inverter, Static Switch, manual by-pass and Battery. The Rectifier-Inverter line normally feeds the users, and the Battery is kept charged by the Rectifier. If a black out occurs, the Battery supplies power energy to users always through the Inverter. When the blackout is over, the Rectifier provides for Battery charge. If a short circuit or an overload occurs to the users, the Static By-pass switches the load over the emergency line. When the fault is over, the Inverter feeds users.