Earth Fault Protection
For the line to ground fault shown in Figure 1, “3I0” is the total fault current. Fault current distribution, from the different system grounding points, can be derived from the distribution in the zero sequence
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Attach a ground wire from one of the threaded studs (A) at the bottom of the housing, to the mounting plate (B). Attach a second grounding wire from the mounting plate (B), to the factory
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A three phase distribution box safely distributes and protects power for large equipment in factories, buildings, and high-demand commercial settings.
Microsoft Word
After noting the ground current, select the ground resistance range and measure the resistance directly. The reading measured as such indicates not just the resistance of the rod itself but of the connected