Which UPS is Right for the Job? <br>Considerations in Choosing Standby, Line-Interactive, Double-Conversion Designs - and New High-Efficiency, Multi-Mode Capabilities - for Your Data Center: White Paper

Which UPS is Right for the Job?
Considerations in Choosing Standby, Line-Interactive, Double-Conversion Designs - and New High-Efficiency, Multi-Mode Capabilities - for Your Data Center

sponsored by Eaton Corporation

Posted:	01 Oct 2009
Published:	01 Oct 2009
Format:	PDF
Length:	15 Page(s)
Type:	White Paper
Language:	English

ABSTRACT:

Traditionally, data center managers and facilities managers could choose from three UPS topologies: standby, line-interactive and double-conversion-offering widely varying levels of efficiency, performance and protection.

The latest generation of double-conversion UPSs offers unique multi-mode capabilities. The UPS operates in a very high-efficiency mode unless power conditions warrant a switch to the higher protective level typical of double-conversion mode.

This white paper describes how various UPS topologies work and looks at the impact of operating mode on five key factors of UPS performance:

Maintaining voltage within tolerances

Transferring among modes without locking up IT equipment

Transitioning gracefully to and from generator power

Reliability and availability

Energy efficiency

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