2 Overview
12
Figure2-8
Copper bar 2# installation position of 31 mode power distribution module
2.2 Work Principle
2.2.1 Work Principle Diagram
Work principle diagram of the UPS is as shown in Figure2-9.
Figure2-9
Work principle diagram
The UPS includes rectification/PFC, inverter, charger, bypass static switch etc function
module, the input power includes mains input, bypass input, battery input, the output mode
includes inverter output, bypass output and maintenance bypass output (if equipped).
When mains normal, the rectifier starts and the charger charges the battery at the same time.
When UPS off, if bypass normal, the system turns to bypass output; when UPS on, the
mains boosts by rectification/PFC and output DC bus voltage, and then go through inverter
Summary of Contents for IST9
Page 1: ...l un I Jet _________ __ AEC IST9 1 0 20 https www uni jet com catalog ibp on line ibp aec ist9...
Page 2: ...UPS IST9 10 20 kVA User Manual...
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Page 52: ...3 Installation 43 Figure3 29 Diagram of 33 mode parallel system wiring of 10kVA 20kVA UPS...
Page 54: ...3 Installation 45 Figure3 31 Diagram of 33 mode parallel system wiring of 30kVA 40kVA UPS...
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