Sizing Neutral Grounding Reactor or Resistor and Effective Grounding - Part 03

This video series provide details on line to ground fault calculations, using symmetrical components. The calculations are done with an example of a 138/12 kV grounded wye-grounded wye transformer. In this example, the low voltage line to ground fault current is 11,000 Amps. Two options are explored to limit the fault current to 6000 Amps. Option 1 is to add a neutral grounding reactor. Option 2 is to add a neutral grounding resistor. In each option, the required reactance or resistance is calculated. Then effective grounding of the system was verified for each option.

[@engineeringsimple]

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[@emmanuelwemakoy8712]

Great explanation!

[@engineeringsimple]

Thank you. I appreciate it.