The shaft of a three-phase synchronous generator is rotating at 1800 RPM synchronous speed. This generator is inducing a torque of 102.4 N.m under a certain load. If the copper losses are neglected, and the sum Prgw + Pcore + Pstray = 4826 Watt, find the efficiency of the generator under those conditions. Select one: O a. % Efficiency = 80 % O b. % Efficiency = 92 % O c. % Efficiency = 88 % O d. None O e. % Efficiency = 82 %

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The shaft of a three-phase synchronous generator is rotating at 1800 RPM synchronous speed.
This generator is inducing a torque of 102.4 N.m under a certain load.
If the copper losses are neglected, and the sum Pfgw + Pcore + Pstray = 4826 Watt,
find the efficiency of the generator under those conditions.
Select one:
O a. % Efficiency = 80 %
O b. % Efficiency = 92 %
O c. % Efficiency = 88 %
O d. None
e. % Efficiency = 82 %
Transcribed Image Text:The shaft of a three-phase synchronous generator is rotating at 1800 RPM synchronous speed. This generator is inducing a torque of 102.4 N.m under a certain load. If the copper losses are neglected, and the sum Pfgw + Pcore + Pstray = 4826 Watt, find the efficiency of the generator under those conditions. Select one: O a. % Efficiency = 80 % O b. % Efficiency = 92 % O c. % Efficiency = 88 % O d. None e. % Efficiency = 82 %
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