3 Terms
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Electricity
A database referring to the existence of a flow of electric charge.
Industry: Utilities
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Electricity
Instantaneous relay
Electrical equipment; Electricity
A relay that operates and resets with no intentional time delay.
Instrument transformer
Electrical equipment; Electricity
A transformer that is only designed to reduce current or voltage from a primary value that is too pass directly through a metre or instrument, to a proportional low level that can safely be applied.
Insulated gate bipolar transistor
Electrical equipment; Electricity
A special design of transistor that is suitable for handling high voltages and currents. Often used in static power control equipment such as inverters, or controlled rectifiers, due to the ...
Intensity (lighting)
Electrical equipment; Electricity
The brightness of light in a given direction. Luminous intensity may be expressed in Candelas (cd) or in Lumens.
Intermediate (lighting)
Electrical equipment; Electricity
Those areas of a municipality often characterised by moderately heavy nighttime pedestrian activity such as in blocks having libraries, community recreation centers, large apartment buildings, ...
Intermediate class arrester
Electrical equipment; Electricity
Surge arresters with a high energy handling capability. These are generally voltage classed at 3-120kV.
Internal impedance (battery)
Electrical equipment; Electricity
The opposition to the flow of alternating current at a particular frequency in a cell or battery at a specific state-of-charge and temperature.
