Main Power
Main Power
Business processes these days increasingly rely on technology, which by default relies on a clean and reliable source of electricity. As more and more industries turn to computerization, mechanization and automation, an unprecedented strain is being placed on already overworked electricity infrastructures around the world. It has taken the developed world by surprise. Managers are now faced with the real prospect of energy rationing and power supply issues. If any part of their business cannot continue without electricity, they have to find alternative ways of securing supply and/or generating their own. Making the correct choice of uninterruptible power supply (UPS) is now more important than ever.
What’s an uninterruptible power supply (UPS)?
A UPS sits between the mains supply and ‘the load’ (equipment and systems in a building or datacenter that need a continuous source of electricity). At its simplest, a UPS conditions electrical current, converts it from AC to DC, and negates potentially harmful power problems including sags, surges, brownouts and fluctuations. In the case of a total mains power outage, the UPS powers the load from its back-up battery until another energy source starts up. Put simply, an uninterruptible power supply can mean the difference between life and death for some businesses.
Different types of UPS
There are three primary types of uninterruptible power supply:
• Online or Double Conversion
• Line Interactive
• Offline (or Passive Standby).
An Online or Double Conversion UPS maintains voltage and frequency variations within prescribed limits so output is independent of supply fluctuation. As well as conditioning mains power to negate problems, this is the only UPS solution that provides break-free supply to the plant or datacenter during a power outage.
A Line Interactive UPS uses built-in passive electronic regulation devices to stabilize and regulate voltage fluctuations. When mains supply power is present, the output frequency of the UPS tracks the input of the mains. Line Interactive and On-Line UPS use tower or ‘rackmount’ case formats and sit next to their respective loads, typically in a datacenter or computer room.
An Off-Line or Passive Standby UPS is a compact device designed for desktops or wall mounting, which uses its own output to track voltage and frequency variations in the mains supply power.
Extended UPS benefits
As well as obvious continuity and power conditioning advantages for a datacenter or computer room, larger uninterruptible power supplies can work in parallel to improve system resilience, MTBF (mean time between failure) and availability.
For a network-sized uninterruptible power supply, the installation of an external UPS maintenance bypass enables routine or emergency maintenance to be carried out (without supply disruption) during normal working-hours.
Extended runtime (the time a load is running on back-up power) can be provided by a combination of extra battery packs and an external standby power source such as a generator or fuel cell.
The transformer-based UPS system
While many UPS are transformerless, organizations reliant on larger datacenter and voice networks, industrial processes, security or hospital applications, often require transformer-based uninterruptible power supply. This gives greater robustness, albeit with slightly lower efficiency and greater heat and noise generation.
Essential protection against power outage and rationing
As well as industrial processes, uninterruptible power supplies may be used to protect large site-wide installations. From the smallest desktop units to the largest parallel redundant installations, a correctly sized, reliable UPS system, provided by an established manufacturer such as Riello UPS Ltd, offers essential protection against the growing risks of power outage and power rationing.
About the Author:
Alison Campbell-Boreham is the editor of The Power Protection Guide and provides PR services to Riello UPS Ltd, the UK subsidiary of Riello UPS (RPS S.p.A). For more information visit the Riello UPS - uninterruptible power supplies website.
Article Source: ArticlesBase.com - Choosing Between Different Types of Uninterruptible Power Supply
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Resistance power is the essential element to safeguard the health from the attack of the diseases. The resistance power is like the army of the country that works to save from harm you from the foreign bodies. Based upon the in general health status, the resistance power varies from one person to person. You need to stay your resistance power at the best in order to keep your health status at the most favorable best. At the present time, it has been noted that resistance power of the people is very feeble and they fall ill very often. This is for the reason that of the unhealthful lifestyle that we are following. You need to appreciate the strengthening of the immune is must as our overall health is reliant on it. So, here are some simple tips to develop resistance power.
Regular exercise is one of the simplest ways to make better the immune system. The physical activity amplifies the blood supply to the all body parts. Even the immune system begins working at it best as the required nutrients are abounding by the blood.
Make a habit to drink adequate amount of water. Water is the indispensable for the production of the antibodies that build the resistance power of the person. Drinking sufficient of water is also essential for the immune system to work properly. Healthy person must drink 3 to 4 liters of water.
One must make sure that to sleep well to get better the resistance power. It is during the sleep that maximum production of the antibodies is being done by the body. So, if you don't sleep then your body is not able to make the adequate amount of the antibodies that weakens your resistance power. Sleeping for on 6 to 8 hours is compulsory for the person to have a good resistance power. If you are facing any problems in getting enough amount of sleep then please confer with the doctor.
Stay away from the intake of the caffeine and chocolate as these two items get in the way with the working of the immune system. They diminish the pace at which immune system works. Caffeine mainly steals from away your body's minerals and vitamins and leads to dehydration, whereas chocolate slows down the body processes. This leads to the lessening in the making of the antibodies.
Finally the main and the foremost is to consumption of the alcohol must be condensed and unhealthy habit of smoking must be avoided to keep your immune system working appropriately. These two habits unswervingly concern the antibodies production that leads the deteriorating of the resistance power. So, get off these two unhealthy habits to get better the resistance power.