F
Fabrication: The process of making or constructing something from parts or materials.
Fault: An unexpected interruption or failure of an electrical system caused by a short circuit, overload, or other malfunction.
Feeder: A line or cable running from a substation or other source to supply electricity to a certain area.
Frequency: The number of cycles per second in an alternating current, measured in hertz (Hz).
Fuse: A safety device consisting of a thin strip of metal or other material that melts when an electrical current exceeds a predetermined level.
G
Generator: A device used to convert mechanical energy into electrical energy.
Ground: A connection between an electrical device and the earth or other common reference point.
Ground Fault Interrupter: A device designed to detect and interrupt an electrical current if it is flowing to ground instead of back to its source.
H
Harmonics: Voltage and current components that are multiples of the fundamental frequency of an alternating current.
Heat Sink: A device used to dissipate the heat generated by electrical components.
I
Induction: The process by which electric current is created in a conductor by the changing magnetic field around it.
Insulator: A material that does not conduct electricity.
Inverter: A device used to convert direct current (DC) into alternating current (AC).
J
Joule: A unit of energy equal to the work done when a force of one newton acts through a distance of one meter.
K
Kilowatt: A unit of power equal to 1,000 watts.
L
Load: The amount of power consumed by an electrical device or circuit.
Loop: An electrical circuit that is created when two or more conductors are connected together.
M
Motor Starter: A device used to control the starting and stopping of electric motors.
