ABB Utility Instrument Transformer Reference Guide 2019

of the unit is 14400/1.73. The accuracy and thermal ratings of this unit are based on 14400 V. This is typical where there is a relay con-nected to the unit which should operate when there is a single line-to-ground fault. In this condition, the line-to-ground voltage be-comes equal to the line-to-line voltage. The “GY” indicates it only ................
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