current or voltage
71current limiter — Elect. a device, as a resistor or fuse, that limits the flow of current to a prescribed amount, independent of the voltage applied. * * * …
72voltage — [ˈvəʊltɪdʒ] noun [C/U] the amount of power in an electric current, measured in volts …
73voltage — F/A/V the electrical potential to create current flow in a circuit …
74voltage tester — A screwdriver for testing electrical current, with an insulated blade and handle; a bulb inside the handle lights up if the blade touches a live terminal …
75Alternating current — (green curve). The horizontal axis measures time; the vertical, current or voltage. In alternating current (AC, also ac) the movement of electric charge periodically reverses direction. In direct current (DC, also dc), the flow of electric charge …
76Direct current — (red curve). The horizontal axis measures time; the vertical, current or voltage. Direct current (DC) is the unidirectional flow of electric charge. Direct current is produced by such sources as batteries, thermocouples, solar cells, and… …
77High voltage switchgear — is any switchgear used to connect or disconnect a part of a high voltage power system. These switchgear are essential elements for the protection and safe operation, without interruption, of a high voltage power system. This type of equipment is… …
78pickup current — noun or pickup voltage : the current or voltage at which a magnetic contactor starts to close under normal operating temperature …
79back-voltage — Voltage which opposes the current when the current in an inductive circuit changes and the magnetic field cuts the conductors. Also see self induction back voltage …
80High-voltage direct current — HVDC or high voltage, direct current electric power transmission systems contrast with the more common alternating current systems as a means for the bulk transmission of electrical power. The modern form of HVDC transmission uses technology… …
