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What are the main compnents of a UPS system?
Rectifier Converts AC voltage to DC voltage, recharges the batteries and maintains float voltage, handles overloads and buffers surges, can...
Cascade or Parallel redundancy?
UPS systems can be designed to operate in parallel to increase reliability (redundant systems) or to increase load handling capability (full...
What does the 'Design Life' of a battery mean?
Battery quality can be determined by the ‘design life’, typically between 5-12 years for VRLA batteries. The ‘design...
What is a Blackout?
A blackout is when the power totally fails. The damage that a blackout causes to your system depends a great deal on its timing. If the system...
Considerations when choosing a UPS and Generator combination?
It is usually beneficial to deal with one supplier for both items as this eliminates the potential conflict if the equipment does not work well...
Why do you need a UPS?
An Uninterruptible Power Supply (UPS) is used to protect critical loads from mains supply problems, including spikes, voltage dips, fluctuations...
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...
Input filters or 12 pulse rectifiers?
With current recommendations demanding lower levels of input harmonics (THDi) it is more common for larger systems to require some form of input...
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...
Single or Three phase UPS?
here are many aspects which affect the choice of module. Totally single phase units are rarely available beyond 20 kVA, above this size it is...