A 1000 kVA 50Hz 34500/400 Volt, Δ Y distribution transformer has an equivalent resistance and reactance based on HV side Zeq= Req + i Xeq= 100 + 200 i ohm. Rc and Xm are 200 kohm and 250 kohm referred to HV side respectively. Find the primary LL voltage and voltage regulation under full load with 0,8 ind. power factor when The secondary voltage is measured as 400VLL.

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A 1000 kVA 50Hz 34500/400 Volt, Δ Y distribution transformer has an equivalent resistance and reactance
based on HV side Zeq= Req + i Xeq= 100 + 200 i ohm. Rc and Xm are 200 kohm and 250 kohm referred to HV
side respectively. Find the primary LL voltage and voltage regulation under full load with 0,8 ind. power factor when
The secondary voltage is measured as 400VLL.

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