Voltage UPS

UPS, abbreviated as uninterruptible power supply is a system or electrical device that maintains a continuous supply of electric power to several sensitive equipments that get severely affected because of unexpected shutdown. The UPS is generally placed between a primary power source, and the primary power input of equipment to be protected to minimize or eliminate the effects of a temporary power cut. Uninterruptible power supply is widely used in telecommunication systems.

Design of UPS
UPS is constructed into various designs on the basis of their application in a particular area.

UPS designed for telecommunication equipments make use of a transformer along with one or more rectifiers in order to convert the incoming commercial AC power into a low voltage DC supply, generally within the range of 12 to 50 volts.

UPS having an older design, meant for supplying AC power to various equipments, consists a motor-generator system with a large flywheel that keeps the generator rotating thereby producing electric power. There is also an accessory motor that starts working, the moment there is a power interruption.

Modern uninterruptible power supply systems that are used with personal computers or similar equipments consist of an electronic rectifier, a static electronic inverter, an energy storing system and a static switch.

Uses & Applications
Uninterruptible power supply systems are widely used in various applications including:

• Telecommunication equipments
• Computer systems
• Air traffic control systems
• Airport landing systems
• Military applications
• IT industry
• Networking