[soman]

The Main voltage Transformer associated with the High Voltage system is not provided with a broken delta secondary windings to ….
The Main voltage Transformer associated with the High Voltage system is not provided with a broken delta secondary windings to polarise the directional Earth fault relay. It is permissible to use three single phase interposing voltage transformers. Why ?

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[Hamid]

Generally it is possible; you just should care for additional error due to new interface device which is not important in this case.

[Author]

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