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220 V, 1200 rpm, 16 A separately excited motor is controlled by a l-phase fully controlled rectifier with an AC source voltage of 230 V, 50 Hz. Enough filter inductance  is added to ensure continuous conduction for any torque greater than 50 percent of rated  torque, Ra. = 4 Ω and have La= 30 mH. Calculate motor torques for the firing angle  α=120° and speed =-800 rpm

220 V, 1200 rpm, 16 A separately excited motor is controlled by a l-phase fully controlled rectifier with an AC source voltage of 230 V, 50 Hz. Enough filter inductance  is added to ensure continuous conduction for any torque greater than 50 percent of rated  torque, Ra. = 4 Ω and have La= 30 mH. Calculate motor torques for the firing angle  α=120° and speed =-800 rpm

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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220 V, 1200 rpm, 16 A separately excited motor is controlled by a l-phase fully
controlled rectifier with an AC source voltage of 230 V, 50 Hz. Enough filter inductance 
is added to ensure continuous conduction for any torque greater than 50 percent of rated 
torque, Ra. = 4 Ω and have La= 30 mH. Calculate motor torques for the firing angle 
α=120° and speed =-800 rpm

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