Primarily, residual or ground current detection is used to detect possible fault conditions.
2.
That forces the ground currents to divide between the input and output sides as planned.
3.
:Ideally ground current is zero.
4.
This configuration causes most ground currents to cancel, reducing shock hazards and interference with communication lines.
5.
The presence of high frequency ground currents can cause sparks, arcing and electrical shocks and can damage bearings.
6.
Because later references refer to earth connections, it appears that Stubblefield subsequently switched to using ground currents instead of induction.
7.
Because the signal is DC balanced the application can use AC coupling, which eliminates the ground current problem between data source and destination.
8.
;Crosstalk : The introduction of noise ( from another signal channel ) caused by ground currents, stray inductance or capacitance between components or lines.
9.
The area of the counterpoise around the base of the antenna is often covered with copper screening, to shield the ground to reduce ground currents.
10.
Since the bulk of the transmission line has low resistance attachments to earth, excessive ground currents from shorts and geomagnetic storms are more rare than in conventional metallic-return systems.
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