Regarding the distribution substation, it is known that they receive power from the transmission system on the input side and on the output side up to 8 primary feeders can be output. But inside the substation yard a grounding resistor is connected, what is the function of this equipment?

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Regarding the distribution substation, it is known that they receive power from the transmission system on the input side and on the output side up to 8 primary feeders can be output. But inside the substation yard a grounding resistor is connected, what is the function of this equipment?
Tip: Be careful in your answer because there is only one correct one for this function.

Expert Solution
Step 1

Grounding resistor or Earthing resistor use for protecting the power system equipment.

The phase wire carries the current to the appliance and the neutral wire carries it back.

 

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