On-line UPS Multi Sentry

double-conversionthree-phaseVRLA

Multi Sentry is a state-of-the-art uninterruptible power supply, achieving the highest possible level of ON LINE double-conversion performance (VFI-SS-111) as defined within IEC EN 62040-3. The UPS has been designed to protect critical information and telecommunications systems, networks, services and processes whose operation could be disrupted by poor power quality and/or breaks in their mains power supply. The sizes available include 160-200 kVA all with a three-phase input and output. The Multi Sentry UPS is one of the most efficient UPS available with a minimal impact on its environment and power sources. ZERO IMPACT SOURCE Multi Sentry UPS are easy to install, especially on sites where there is limited power capacity available, a standby generator and potentially harmonic compatibility issues: low input current distortion - less than 2.5%; high input power factor 0.99; power walk-in function to achieve progressive rectifier start-up; delayed start-up on mains power supply return. Multi Sentry also performs the role of a high specification filter, protecting its power supply sources (mains or generator) from any harmonics and reactive power generated by the loads it is powering. BATTERY CARE SYSTEM The Multi Sentry Battery Care System optimises battery performance, to help extend their working life and ensure that the UPS can deliver its full-rated back-up time when called upon in an emergency. Two voltage level recharge meeting the IU characteristic; Temperature compensation: to avoid excessive voltage being applied to the batteries in a high ambient Battery test: to detect performance degradation and predict battery failure.