. series motor when loaded to 50 A runs at 1500 r.p.m. on a 220 V supply. The motor resistance is 0.1 ohm and the flux may be taken as proportional to the current. Calculate the value of resistance to be inserted in series to bring down the speed to 900 r.p.m. at which the load torque is hakf the previous value.(Ans.3.544 ohms)
. series motor when loaded to 50 A runs at 1500 r.p.m. on a 220 V supply. The motor resistance is 0.1 ohm and the flux may be taken as proportional to the current. Calculate the value of resistance to be inserted in series to bring down the speed to 900 r.p.m. at which the load torque is hakf the previous value.(Ans.3.544 ohms)
Introductory Circuit Analysis (13th Edition)
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A D.C. series motor when loaded to 50 A runs at 1500 r.p.m. on a 220 V supply. The
motor resistance is 0.1 ohm and the flux may be taken as proportional to the current.
Calculate the value of resistance to be inserted in series to bring down the speed to
900 r.p.m. at which the load torque is hakf the previous value.(Ans.3.544 ohms)
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