Riello UPS

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Industry
Complex industrial installations are particularly critical and therefore require an exceptional level of resilience and reliability under all operating and environmental conditions. The UPS is a fundamental asset for guaranteeing service continuity and system safety. Riello UPS's industrial solutions have been protecting oil and gas infrastructures, power stations and other industrial installations for decades, making Riello UPS the...
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Why do you need a UPS?
An uninterruptible power supply (UPS) is used to protect critical loads from utility-supplied power problems, including spikes, brownouts, fluctuations and power outages, all using a dedicated battery. There are three basic functions that it essentially performs: avoids damage to hardware caused by overcurrents and voltage spikes. Many UPS models also continuously regulate the input power. avoids data loss and damage. In fact, without a UPS, data stored on devices subject to...
(Faq)
Medical
Medical and healthcare services now generally rely on micro-processor based technologies. Due to the critical nature of these systems, the uninterrupted and quality power infrastructure must be designed to ensure maximum reliability and operability. Safety Medical equipment such as MRIs must adhere to stringent safety standards. The UPS must input isolation to those critical loads to sure uninterrupted power...
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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 against most supply problems and really only give support for short-term power loss. The load is fed from the mains during normal operation, hence 'off-line'. On-line (VFI) UPS systems are regarded as 'high-end' and employ more sophisticated technology which uses a rectifier and inverter, hence 'double-conversion'. This...
(Faq)
Digital Living
The Digital Living market is becoming more and more important, covering the market sector that includes professionals, small businesses and freelance professionals working from home. No less important are domestic consumers, which with the rise of entertainment devices and media centres requiring ever higher quality power supply and protection from interference and black-outs. Low energy consumption Reducing energy consumption has...
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What is a 'Line Interactive' UPS?
Line interactive technology sits between offline and online. The load is fed from mains during normal operation, however unlike 'offline', this technology incorporates various filters to provide voltage stabilisation and help suppress spikes and transients.
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Data Centers
Data centers represent one of a company's most fundamental assets: a structure on which the entire organisation depends. This is why it is important to ensure these systems are both functional and reliable, starting from the correct electrical layout of the system and following precise quality criteria. Availability According to the TIER standard, system availability should fall between 99.9 and 99.999%: downtime is not an...
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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 accept wide input voltage fluctuations. Inverter Converts DC voltage to AC voltage, regulates and filters AC voltage. Static Bypass Automatically connects load to mains supply if overload or fault occurs. Battery Provides emergency power source when mains supply fails.
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Transport
The infrastructure used in the transport sector is increasingly technologically advanced and complex. However, it must also provide an exceptional level of resilience and reliability under all operating and environmental conditions. UPS and power continuity play a major role in guaranteeing continuity and excellence in the services provided. Installation Flexibility Every application in the transport infrastructure sector has...
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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 conditioning. New Installations Access the level of power protection required. Some installations may demand that every item is supported by UPS, others may only require UPS for a central server and one or two workstations. Type of Client/Application Emergency services, financial institutions, Industrial etc. This can have an impact on the...
(Faq)
Emergency
Riello UPS centralised power supplies are designed for buildings subject to fire prevention safety standards. Designed and built in compliance with the EN 50171 CPSS (Central Power Supply Systems) standard amongst other guidelines, these systems are designed mainly to provide emergency lighting in the event of a power blackout. However, they can also be used for other emergency systems such as: automatic fire prevention...
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What is a Bypass Switch?
Static Bypass switches are used to bypass the UPS normal operation, in cases of high inrush or fault conditions. Manual bypass switches are an added benefit to allow service and isolation for safety purposes. Correctly designed systems should enable these operations to be performed without loss of power to the load. External maintenance bypass switches add the facility to remove the UPS from site, offers local isolation capabilities and enables all ac cabling to be completed prior to the...
(Faq)
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 systems using ‘Key interlocking.’ Totally safe and user friendly, simple switching sequence, no risk of back-feeding UPS. Use of electrical interlocking ensures ‘no-break’ transfer without complex & expensive key interlock arrangement. No need for additional Maintenance switches or key exchange boxes (cost...
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Why choose 'Transformer-based' or 'Transformer-less' UPS?
Transformer based Traditional technology, typically available from 10 kVA, suitable for industrial applications, galvanic isolation with inverter output transformer, typically standard technology from 100 kVA upwards Transformer-less Typical technology from the smallest ratings up to 120 kVA, more compact footprints, lower weights, more suited to IT applications and environments, high efficiency across the load range, generally more cost effective.
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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 capacity systems). These modules would include extra paralleling circuitry and would usually share the load during normal operation. Each individual unit is sized to support the load in the event of a single system malfunction and naturally a seamless transfer is ensured. Under mains failure conditions all units would feed the load until the batteries...
(Faq)
Single or Three phase UPS?
There are many aspects which affect the choice of module. Totally single phase units are rarely available beyond 20 kVA, above this size it is usually necessary to use a three phase input for the rectifier, even where the inverter output is single phase. When feeding this type of system via a generator it is important to remember that the bypass line will be single phase, demanding a higher current on one phase only. Larger units with three phase input/output are more easily distributed...
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Multi Switch
Operating principle Multi Switch provides direct distribution of eight 10 A IEC outlets in a system with two input power lines (two mains inputs, or two UPS). Multi Switch is able to connect to either of the two input power lines, whilst simultaneously monitoring the power uptake. Protection against load faults If one of the loads fails (e.g. short circuit), Multi Switch disconnects the group of sockets where the load is connected, thus preventing other loads from being...
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Can I add more UPS modules to the system when my load increases?
Yes, the MST, MPS and MHT ranges employ a plug and play parallel system that allows additional units to be added to an existing system at a later date. Additional UPS units can be added to either provide redundancy or extra capacity if the load increases. Sometimes it’s worth investing in additional switchgear early on so that more units can be accommodated much more easily.
(Faq)
Can I support Air-Conditioning on my UPS?
Air-Conditioning can be considered as a “dirty” load due to continual switching causing voltage and current spikes and surges. The UPS module can cater for a certain level of overload for a small duration, however the duration and level of current surges typically associated with A/C units is far greater than the UPS’ capability. Therefore it is advised not to support the AC on a UPS and supply this element with a generator only if possible. If there is no option but to...
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Group
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