Important Notices!
Thank you for choosing LEGRAND UPS System to supply your Critical Application.
This manual contains important information about commissioning, usage and technical properties of the
UPS. It also contains safety information for operator and instructions to secure your critical load. Applying
the recommendation detailed in this manual is necessary to use UPS safely and correctly.
The manufacturer reserves the rights to change the technical specications
and design without notice.
LEGRAND reserves the rights to change the information in this document
without notice. Refer to http://ups.legrand.com/ web site to dowload last
release and translations.
Units that are labelled with a CE mark comply with the Standard: EN 62040-1 and EN 62040-2.
Read the manual completely before working on this equipment!
Keep this manual in UPS’s front cover’s pocket for easy consultation!
Reproduction, adaptation, or translation of this manual is prohibited without prior
written permission of LEGRAND Company, except as allowed under the copyright laws.
82
Appendix-6: Description of UPS and Block Diagram
Name Denition
Q1 Common Mains Supply Circuit Breaker
Q2 Output Circuit Breaker
Q3 Maintenance Bypass Circuit Breaker
Q4 Auxiliary Mains Supply Circuit Breaker
F5 Battery Fast Fuse
Q6 Inrush Circuit Breaker
F1 Rectier Fast Fuse
F2 Inverter Fast Fuse
KREC Rectier Contactor
KINV Inverter Contactor
KBYP Backfeed Contactor
X1 Common Mains Supply Terminals
X2 Output Terminals
X4 Auxiliary Mains Supply Terminals
BYPASS THYRISTOR
In case any inverter fault occurs; Bypass thyristors transfer the supply of the load electronically from inverter to Auxiliary
Mains Supply without any interruption.
RECTIFIER The rectier generates a very constant DC voltage level by drawing current from the input with a power factor close to 1.
INVERTER The inverter generates a very constant AC voltage level at the output by using DC voltage source at the rectier’s output.
BATTERY Supplies the necessary energy when the mains voltage is not available.
To Next Page
Loading...
Need help?
General