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The ground loop still exists, but the two sides of the loop are close together, so stray magnetic fields induce equal currents in both sides, which cancel out. Break in the shield Create a break in the signal cable shield conductor. [5] The break should be at the load end. This is often called ground lifting. It is the simplest solution; it ...
The current density, and power dissipated, increases the closer one gets to the ground terminal at the base of the antenna, [14] so the radial ground system can be thought of as providing a higher conductivity medium, copper, for the ground current to flow through, in the parts of the ground carrying high current density, to reduce power losses.
For example, at the annual "Jodie S. Lane Stray Voltage Detection, Mitigation & Prevention Conference", held at the Con Edison headquarters in New York City in April 2009, the presidents of most major utilities from throughout the United States and Canada continued to use stray voltage for all occurrences of unwanted excess electricity.
To save weight and wire, often the metal frame of the vehicle is connected to one pole of the battery and used as the return conductor in a circuit. Often the negative pole is the chassis "ground" connection, but positive ground may be used in some wheeled or marine vehicles. In a battery electric vehicle, there are usually two separate DC systems.
A ground connection that is missing or of inadequate capacity may not provide the protective functions as intended during a fault in the connected equipment. Extra connections between ground and circuit neutral may result in circulating current in the ground path, stray current introduced in the earth or in a structure, and stray voltage.
The 300 volt point defining a zone of influence around a sub station is dependent on the ground resistivity and the amount of fault current. It will define a boundary a certain distance from the ground grid of the sub station. Each sub station has its own zone of influence since the variables explained above are different for each location. [5]
An example showing mains-powered electronic instruments with a floating ground. (Demonstrates three of the typical reasons for a floating ground.) Fourthly, a floating ground can help eliminate ground loops, [3] which reduces the noise coupled to the system. The image on the right shows an example of such a configuration.
USB power, used for example to charge a cell phone or a digital camera. [18] Also one of the most common digital circuit supply voltages for both TTL and CMOS technologies. 6 V A common voltage for medium-size electric lanterns. [19] A voltage for older electric systems of automobiles. Deca-10 1: 12 V Typical car battery [20] Hecto-10 2: 100 ...