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A 200 kW Caterpillar diesel generator set in a sound attenuated enclosure used as an emergency backup at a sewage treatment substation in Atlanta, United States. A diesel generator (DG) (also known as a diesel GenSet) is the combination of a diesel engine with an electric generator (often an alternator) to generate electrical energy. [1]
Most forms of uninterruptible power supply (UPS) can be either powered by battery or flywheel energy. These are ready for immediate use at the instant that the mains electricity fails, but the relatively small and finite amount of stored energy they contain makes them suitable for short periods of use, typically in the order of a few dozen minutes to a couple of hours depending on the actual load.
DFI – design, fabrication and installation résumé; DFIT – diagnostic fracture injection test; DFPH – Barrels of fluid per hour; DFR – drilling factual report; DG/DG# – diesel generator ('#'- means identification letter or number of the equipment i.e. DG3 or DG#3 means diesel generator nr 3) DGA – diglycoamine
The marine and air transportation, [9] offshore structures, [10] industrial plant and facility management industries depend on maintenance, repair and overhaul (MRO) including scheduled or preventive paint maintenance programmes to maintain and restore coatings applied to steel in environments subject to attack from erosion, corrosion and environmental pollution.
Tottenham Substation, set in wild parkland in North London. The first step in planning a substation layout is the preparation of a one-line diagram, which shows in simplified form the switching and protection arrangement required, as well as the incoming supply lines and outgoing feeders or transmission lines. It is a usual practice by many ...
Currently, standards are set for all road vehicles, trains, barges and 'nonroad mobile machinery' (such as tractors). No standards apply to seagoing ships or airplanes. EU Regulation No 443/2009 set an average CO 2 emissions target for new passenger cars of 130 grams per kilometre. The target was gradually phased in between 2012 and 2015.
Centralized (left) vs distributed generation (right) Distributed generation, also distributed energy, on-site generation (OSG), [1] or district/decentralized energy, is electrical generation and storage performed by a variety of small, grid-connected or distribution system-connected devices referred to as distributed energy resources (DER).
IEC TR 61911 Live working – Guidelines for installation of distribution line conductors – Stringing equipment and accessory items (Withdrawn, replaced by IEC TR 61328:2017) IEC TR 61912 Low-voltage switchgear and control gear – Overcurrent protective devices; IEC 61914 Cable cleats for electrical installations