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What is ECO mode?
ECO mode is often referred to as 'Active Standby' and is mainly used on sites where the general mains supply is relatively stable or the...
What are the differences between 'Online' and 'Offline'?
Off-line (VFD) systems are usually low cost products designed for a simple one or two user PC installations, they offer little or no protection...
What should be considered when buying a UPS system?
Existing Installations Consider a central back-up system to eliminate expensive re-cabling. Wise to involve a company specialising in power...
What are the benefits of an external maintenance bypass switch?
Capability for total isolation for UPS maintenance, with no disturbance to the load. Greatly reduced cost and size when compared to other...
What are the main components of a UPS system?
Rectifier Converts AC voltage to DC voltage, recharges the batteries and maintains float voltage, handles overloads and buffers surges, can...
What should be considered when selecting a battery?
Type of enclosure - Sealed or Vented - Design life 5, 8 to 10 or 10+ years - Standard or BS6290 part 4 compliant - Battery Autonomy - Floor...
Why Do I Need A UPS Site Survey?
Site surveys are essential to help customers get the best UPS system to meet their specific circumstances and budget. They...
What’s The Difference Between A Critical And Non-Critical Load?
Critical loads directly affect an organisation’s ability to maintain key operations and must be kept running during a mains power...
Why install a Bypass Isolation Transformer?
When generators are installed, it is common to use four pole changeover switchgear or contactors when transferring from mains to generator,...
What Are The Different Types Of UPS Battery Testing?
Battery maintenance and testing is crucial to the continued performance of a UPS system. There are a variety of...

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