Three-phase 2 pole star connected synchronous generator operates at rated kVA with a lagging power factor question

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Joined Apr 24, 2019
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A given three-phase 2 pole 50 Hz, 1000 KVA, 4.8kW star connected synchronous generator has a reactance of 40Ω/phase. Assuming the machine operates at rated kVA with a power factor of 0.85 lagging. Calculate
i) the excitation voltage
ii) power angle

For this question, how do I start? What does 2 pole mean and how does it affect the calculations?