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  2. Underground storage tank - Wikipedia

    en.wikipedia.org/wiki/Underground_storage_tank

    An underground storage tank (UST) is, according to United States federal regulations, a storage tank, including any underground piping connected to the tank, that has at least 10 percent of its volume underground.

  3. Unit commitment problem in electrical power production

    en.wikipedia.org/wiki/Unit_Commitment_Problem_in...

    The unit commitment problem (UC) in electrical power production is a large family of mathematical optimization problems where the production of a set of electrical generators is coordinated in order to achieve some common target, usually either matching the energy demand at minimum cost or maximizing revenue from electricity production.

  4. Isolated-phase bus - Wikipedia

    en.wikipedia.org/wiki/Isolated-phase_bus

    The consequences of a two- or three-phase fault between the generator and the first circuit breaker are therefore much more serious and often result in severe damage to the busbars and nearby equipment. Isolated-phase bus is made in ratings from 3000 amperes to 45,000 amperes, and rated for voltages from 5000 volts up to about 35,000 volts.

  5. UST (company) - Wikipedia

    en.wikipedia.org/wiki/UST_(company)

    In July 2022, UST announced a strategic investment in Well-Beat, an Israeli start-up with a focus on patient-centred behavioural artificial intelligence (AI). [46] In October 2022, UST HealthProof, a UST company, has acquired Advantasure a Blue Cross Blue Shield - BCBS (M) [47] arm from MI, USA. The Advantasure is a new brand formed in 2019 ...

  6. List of General Motors factories - Wikipedia

    en.wikipedia.org/wiki/List_of_General_Motors...

    Ignition (Plant 20) and Generator (Plant 11) products along with the Engineering Center (Plant 18) transferred to Delphi Automotive Systems in 1999. Delco Remy: Muncie, Indiana: United States: Batteries: 1908: 1994: Located on West Willard Street. 9 (1979-1988) Q (1971-1978) Detroit Assembly (Cadillac Clark Street plant) Detroit, Michigan ...

  7. Uninterruptible power supply - Wikipedia

    en.wikipedia.org/wiki/Uninterruptible_power_supply

    A problem in the combination of a double-conversion UPS and a generator is the voltage distortion created by the UPS. The input of a double-conversion UPS is essentially a big rectifier. The current drawn by the UPS is non-sinusoidal. This can cause the voltage from the AC mains or a generator to also become non-sinusoidal.

  8. Alternator - Wikipedia

    en.wikipedia.org/wiki/Alternator

    The DC generator generates a small amount of electricity, just enough to excite the field coils of the connected alternator to generate electricity. A variation of this system is a type of alternator that uses direct current from a battery for initial excitation upon start-up, after which the alternator becomes self-excited.

  9. Radioisotope thermoelectric generator - Wikipedia

    en.wikipedia.org/wiki/Radioisotope...

    Diagram of an RTG used on the Cassini probe. A radioisotope thermoelectric generator (RTG, RITEG), sometimes referred to as a radioisotope power system (RPS), is a type of nuclear battery that uses an array of thermocouples to convert the heat released by the decay of a suitable radioactive material into electricity by the Seebeck effect.