Question: 4 . 1 5 A dc series machine ( 9 : 2 5 kW , 1 8 5 V , 1 5 0 0 rpm

4.15 A dc series machine (9:25 kW,185 V,1500 rpm) has Ra +Rsr =0:3. The data for the magnetization
curve are as follows:
Ia.a.0102030405060
Ea.v.1050106156184200208
Determine the terminal voltage at
(a) Ia =20 A:
(b) Ia =40 A:
(c) Ia =60 A:
if the dc series machine operates as a generator.

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