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Electrical Power

Electric Motor Load

As shown in Figure 1, the installations and uses of electric motors are just as diversified as the many different kinds and horsepower ratings of electric motors. In general, electric motors or electrical utilization equipment that contains motor loads must be provided with a disconnecting means, supply conductors, and some …

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Purpose of Grounding the Utility Power Distribution

fig 1 The static ground wire in the 3-phase electrical utility power transmission-distribution grid

The transfer of electrical power within the electrical-utility power transmission/distribution grid is normally at high voltage (high tension) to reduce the transmission losses (line losses) along the miles of cable that must be installed between the generating plants and the many cities, commercial and industrial sites, and suburban, as well …

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