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This transformer shall comply with the following technical specifications.
Equivalent series impedance between low-voltage and high-voltage windings:
The equivalent series impedance Z(%) of the transformer shall be 6%. The impedance voltage allowable
criteria of 5.4% to 6.6% shall be maintained. This value can be determined when the voltage in other
low-voltage winding increases until the high-voltage winding is short-circuited and a nominal current
flows.
The equivalent series impedance Z(%) of the two-winding transformer:
The contents of Article 2 can be summarized that the equivalent series impedance Z(%) of the two-
winding transformer can be expressed as follows: ZL refers to the equivalent series impedance of
the low-voltage winding, and ZL refers to the equivalent series impedance of the high-voltage
winding.
