central current supply
21Traction current line — A traction current line is a high voltage transmission line for the supply of railways with traction current for powering locomotives. A network of traction current lines is needed in countries where trains use single phase alternating current of …
22Money supply — Finance Financial markets Bond market …
23List of current systems for electric rail traction — This a list of the power supply systems that are, or have been, used for tramway and railway electrification systems. Note that the voltages are nominal and vary depending on load and distance from the substation. Many modern trams and trains use …
24Water supply and sanitation in India — continue to be inadequate, despite longstanding efforts by the various levels of government and communities at improving coverage. The situation is particularly inadequate for sanitation, since only one of three Indians has access to improved… …
25Power 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 …
26List of current ships of the United States Navy — Harry S. Truman visits Greece 2002 This is a list of current ships of the United States Navy. There are more than 400 ships believed to be in active service with the United States Navy, on reserve, or under construction, based on public reports… …
27Water supply and sanitation in the United States — is provided by towns and cities, public utilities that span several jurisdictions and rural cooperatives. About 15 million Americans are served by their own wells. Public water supply and sanitation systems are regulated by state level regulatory …
28Water supply and sanitation in Uganda — Since 2000, NWSC has worked under performance contracts with the national government, each covering three years. The contracts contain precise performance indicators, which the NWSC is expected to achieve. For example, the 2003 2006 contract… …
29Power supply rail — A power supply rail or voltage rail refers to a single voltage provided by a power supply unit (PSU) relative to some understood ground. Although the term is generally used in electrical engineering, most people encounter it in the context of… …
30Power 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… …
