Question

125-kW, 250-V, 1800-rev/min, cumulative compound d-c generator has the following winding resistances:                                  ra = 0.025Ω    rse = 0.010Ω rf = 30Ω              The machine is long-shunt connected. Its stray-power loss at                rated voltage and 1800 rev/min is 5000 W. When operated  at              rated speed, load, and terminal voltage, the shunt-field                   current  is 5A.             Find the efficiency and input horsepower requirements under                these conditions.​

Answer 1

Answer:

How did the Egyptians settlers enjoy many years of peace and security?what did they learn during that period ??