Question
Download Solution PDFIn a DC shunt motor, the torque produced is proportional to:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFFor DC Machine, torque is directly proportional to armature current and flux.
T ∝ ϕ Ia
In dc shunt motors, flux is constant (not dependent on armature current). Hence torque is proportional to armature current.
T ∝ Ia
In dc series motors, flux is directly proportional to armature current. Hence torque is directly proportional to square of the armature current.
Ta ∝ Ia2
In dc series motor at saturation condition, flux is constant. Hence torque is proportional to armature current.
T ∝ Ia
Where, T = torque, Ia = armature current, ϕ = field flux
Last updated on Jun 26, 2025
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