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A single-phase, 230 V, 50 Hz AC mains fed fully controlled bridge rectifier is feeding a 200 V DC, 1500 rpm, 10 A separately excited DC motor with a ripple-free continuous current under all operating conditions. The armature resistance is 1 Ω and the motor torque is 15 N-m.
What will be the motor speed (in rpm) be at a firing angle of 30°?
(Answer up to one decimal place)
    Correct answer is '1318.5'. Can you explain this answer?
    Most Upvoted Answer
    A single-phase, 230 V, 50 Hz AC mains fed fully controlled bridge rect...
    The information given is incomplete. It seems that the question has been cut off after mentioning the armature resistance as 1, without specifying the units or providing any additional information. Please provide the complete question or any additional details so that I can assist you further.
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    A single-phase, 230 V, 50 Hz AC mains fed fully controlled bridge rect...
    The armature terminal voltage under rated operating conditions of the separately excited d.c. motor
    Vt = Ea+ Ia ra = Kmwm + IaRa ∴ Ea = Kmwm
    ⇒ Km = 1.209 V-s/rad
    For a torque of 15 Nm, motor armature current is given as
    The equation giving the operation of converter mode is
    Vo = Vt = Ea+ Iara
    or 179.33 = 1.209ωm + 12.40
    ωm = 2π x N/60 = 138.07
    N = 1318.5 r.p.m
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    A single-phase, 230 V, 50 Hz AC mains fed fully controlled bridge rectifier is feeding a 200 V DC, 1500 rpm, 10 A separately excited DC motor with a ripple-free continuous current under all operating conditions. The armature resistance is 1 Ω and the motor torque is 15 N-m.What will be the motor speed (in rpm) be at a firing angle of 30°?(Answer up to one decimal place)Correct answer is '1318.5'. Can you explain this answer?
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    A single-phase, 230 V, 50 Hz AC mains fed fully controlled bridge rectifier is feeding a 200 V DC, 1500 rpm, 10 A separately excited DC motor with a ripple-free continuous current under all operating conditions. The armature resistance is 1 Ω and the motor torque is 15 N-m.What will be the motor speed (in rpm) be at a firing angle of 30°?(Answer up to one decimal place)Correct answer is '1318.5'. Can you explain this answer? for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Question and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about A single-phase, 230 V, 50 Hz AC mains fed fully controlled bridge rectifier is feeding a 200 V DC, 1500 rpm, 10 A separately excited DC motor with a ripple-free continuous current under all operating conditions. The armature resistance is 1 Ω and the motor torque is 15 N-m.What will be the motor speed (in rpm) be at a firing angle of 30°?(Answer up to one decimal place)Correct answer is '1318.5'. Can you explain this answer? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A single-phase, 230 V, 50 Hz AC mains fed fully controlled bridge rectifier is feeding a 200 V DC, 1500 rpm, 10 A separately excited DC motor with a ripple-free continuous current under all operating conditions. The armature resistance is 1 Ω and the motor torque is 15 N-m.What will be the motor speed (in rpm) be at a firing angle of 30°?(Answer up to one decimal place)Correct answer is '1318.5'. Can you explain this answer?.
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