Zero phase sequence impedance TRF
Zero phase sequence impedance TRF
(OP)
Hi All
Please can any one assist me. See attached diagram. I have a 6 MVA star/delta TRF that supplies an 11 kV bus. For a fault on the 11 kV bus I need to calculate the fault current using SYMMETRICAL COMPONENTS!! I understand how to determine the positive and negative sequence impedance in order to calculate the fault current on the 11kV bus, but do not have any idea how to calculate the zero phase sequence with the connected neutral earthing resistor. Any assistance will be appreciated.
Please can any one assist me. See attached diagram. I have a 6 MVA star/delta TRF that supplies an 11 kV bus. For a fault on the 11 kV bus I need to calculate the fault current using SYMMETRICAL COMPONENTS!! I understand how to determine the positive and negative sequence impedance in order to calculate the fault current on the 11kV bus, but do not have any idea how to calculate the zero phase sequence with the connected neutral earthing resistor. Any assistance will be appreciated.






RE: Zero phase sequence impedance TRF
Bill
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Jimmy Carter
RE: Zero phase sequence impedance TRF