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In such cases the user should consider the downstream capacitive discharge current to avoid false operation of the non-directional indicators. Some overhead line fault indicators called as pole mounted fault indicators can detect the live line and the fault current from 3 to 5 metres (9.8 to 16.4 ft) below the conductors.
Markers are often installed on overhead lines near airfields, or at river crossings where there is a possibility of float-equipped aircraft using the river. Some markers contain conductor marking lights or strobe lights to improve visibility at night or in fog. An overhead line obstruction warning marker near an airstrip.
line-to-ground fault - a short circuit between one line and ground, very often caused by physical contact, for example due to lightning or other storm damage. In transmission line faults, roughly 65% - 70% are asymmetric line-to-ground faults. [2] double line-to-ground fault - two lines come into contact with the ground (and each other), also ...
Residential customers in areas fed by affected overhead power lines can occasionally see the effects of an autorecloser in action. If the fault affects the customer's own distribution circuit, they may see one or several brief, complete outages followed by either normal operation (as the autorecloser succeeds in restoring power after a ...
Overhead lines or overhead wires are used to transmit electrical energy to trams, trolleybuses or trains. Overhead line is designed on the principle of one or more overhead wires situated over rail tracks. Feeder stations at regular intervals along the overhead line supply power from the high-voltage grid.
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The Haldersons claimed stray voltage from high voltage power lines hurt their 1,000 cow herd and lowered milk production. The jury found that Xcel subsidiary – Northern States Power Company – was "negligent with respect to the delivery of electrical service." The jury awarded $4.09 million for economic damages and another $409,000 for ...