back-up power supply system
1Power supply unit (computer) — Power supply unit with top cover removed A power supply unit (PSU) supplies direct current (DC) power to the other components in a computer. It converts general purpose alternating current (AC) electric power from the mains (110 V to… …
2Power supply — For the Budgie album, see Power Supply (album). A vacuum tube rackmount adjustable power supply, capable of +/ 1500 volts DC, 0 to 100mA output, with amperage limiting capability. A power supply is a device that supplies electrical energy …
3Uninterruptible power supply — A small free standing UPS …
4Diesel rotary uninterruptible power supply — Most forms of Uninterruptible Power Supply (UPS) are battery powered. These are ready for immediate use at the instant that the mains electricity fails, but the small amount of stored energy they contain makes them suitable for a few minutes of… …
5Power line communication — or power line carrier (PLC), also known as power line digital subscriber line (PDSL), mains communication, power line telecom (PLT), power line networking (PLN), or broadband over power lines (BPL) are systems for carrying data on a conductor… …
6Power steering — helps drivers steer vehicles by augmenting steering effort of the steering wheel. It does this by adding controlled energy to the steering mechanism, so the driver needs to provide only modest effort regardless of conditions. In particular, power …
7Power factor — For other uses, see Power factor (pistol). The power factor of an AC electric power system is defined as the ratio of the real power flowing to the load over the apparent power in the circuit,[1][2] and is a dimensionless number between 0 and 1… …
8Power outage — A power outage (also known as power cut , power failure , power loss , or blackout ) is the loss of the electricity supply to an area.The reasons for a power failure can for instance be a defect in a power station, damage to a power line or other …
9Power Holding Company of Nigeria — The Power Holding Company of Nigeria (abbreviated PHC or PHCN), formerly the National Electric Power Authority (abbreviated NEPA) is an organisation governing the use of electricity in Nigeria. The company runs a football team, NEPA Lagos. It… …
10Power Mac G5 — Infobox Computer name = Power Mac G5 developer = Apple Computer, Inc. type = Desktop photo = caption = Apple Power Mac G5 first release date = June 24, 2003 discontinuation date = August 7, 2006 processor = Single or dual PowerPC G5, 1.6 2.7 GHz… …
