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What Is The Difference Between Cascade And Parallel Redundant UPS Systems?
Parallel UPS systems see several uninterruptible power supplies installed together to either increase reliability (redundant systems) or to...
What’s The Difference Between A Warranty And A UPS Maintenance Plan?
In terms of a UPS system, a warranty provides ‘best endeavour’ protection against mechanical faults or...
What Is Electrical Noise?
In electronics, ‘noise’ is an unwanted high-frequency disturbance or interference with the...
Why Use An External Maintenance Bypass Switch With A UPS?
An external maintenance bypass switch enables a UPS system to be electrically isolated – taken out of the critical power circuit –...
What Does A UPS Parallel Systems Joiner Do?
A Parallel Systems Joiner (PSJ) is an output power coupling switch that enables two independent groups of UPS operating in parallel...
What Are The Different Types Of UPS Battery Testing?
Battery testing is crucial to the continued performance of a UPS system. There are a variety of common battery tests including...
What Is A UPS Factory Witness Test?
Witness testing for UPS systems takes place prior to full site installation and commissioning. It simulates real-life...
What To Consider When Using A UPS System And Generator Combination
UPS systems should be used in combination with a standby generator in situations where equipment and machinery must remain operational at all...
What Are Voltage Spikes And Transients?
Spikes and transients are fast-moving, high-energy bursts lasting for just a few milliseconds that are superimposed onto the normal mains...
What Role Do Fans Play In A UPS?
Uninterruptible power supply fans play a crucial role in keeping electronic components such as the inverter and rectifier...

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