Question
Download Solution PDFA 8-kW, 4-pole, 220-V, 50-Hz reluctance motor has a torque angle of 30° when operating under rated load conditions. Calculate the load torque.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
A reluctance motor is a constant speed motor like a synchronous motor.
Speed (Ns) = 120 f / P
f = frequency, P = number of poles
Angular speed (ω) = (2 π Ns) / 60
Calculation:
Given
P = 4, f = 50 Hz, power = 8000 W
Ns = 120 × 50 / 4 = 1500 RPM
ω = (2 × π × 1500) / 60
ω = 157 rad/s
Torque = Power / ω
Torque = 8000 / 157
Torque = 51 N-m
Last updated on Jun 16, 2025
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