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Problem 7: A synchronous motor is drawing a current of 555A when it is connected to a 400V (rms). The motor loses some power as follows: mechanical power losses = 0.8KW, core power losses = 0.9KW, and electrical power loss = 0.53KW. Find the efficiency of the motor and the mechanical power in HP that appears in the output of the motor. Problem 8: Find the electromotive voltage E developed in the coils of a synchronous motor that has a K = 0.4, magnetic flux = 20T, a frequency f = 60Hz, and number of poles P = 8.

          Problem 7: A synchronous motor is drawing a current of 555A when it is connected to a 400V (rms). The motor loses some power as follows: mechanical power losses = 0.8KW, core power losses = 0.9KW, and electrical power loss = 0.53KW. Find the efficiency of the motor and the mechanical power in HP that appears in the output of the motor.

Problem 8: Find the electromotive voltage E developed in the coils of a synchronous motor that has a K = 0.4, magnetic flux = 20T, a frequency f = 60Hz, and number of poles P = 8.

problem 7 a synchronous motor is drawing a current of 555a when it is connected to a 400v rms the motor loses some power as follows mechanical power losses 08kw core power losses 09kw and el 57742

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