Electricity

Electricity

A database referring to the existence of a flow of electric charge.

Industry: Utilities

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Electricity

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 meter 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 characterized 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.

internal resistance (battery)

Electrical equipment; Electricity

The opposition or resistance to the flow of Direct Electric Current within a cell or battery; The sum of the ionic and electronic resistance of the cell components. Its value may vary with the ...