Question: Find how many series turns per pole are needed on a 500-kW compound generator required to give 450 V on no-load and 500 V on

Find how many series turns per pole are needed on a 500-kW compound generator required to give 450 V on no-load and 500 V on full-load, the requisite number of ampere-turns per pole being 9,000 and 6,500 respectively. The shunt winding is designed to give 450 V at no-load when its temperature is 20°C. The final temperature is 60°C. Take α0 = 1/234.5 per °C.

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