Section 14.5: Performance of a Round-Rotor Synchronous Generator cont.

Which yields E ť 5495/19.2° V. so that

VR% = [(|VNL| - |VFL|)/|VFL|]´100% = [(|E| - |Vt|)/|Vt|]´100%

= [(5495 - 3811)V./3811V.]´100% ť 44.2%

Example 14.2 cont.

Calculate the % voltage regulation three-phase wye-connected 2.5 MVA, 6.6 KV synchronous generator operating at rated KVA load, 0.8 lagging power factor. The synchronous impedance is: Zs = Ra +jXs = (0.071 + j10.4)W

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