Question

Determine the torque in Newtown meters produced by 7.5 HP squirrel cage motor rotating at 1440 RPM

Answer 1

Explanation:

Given: P = 1 hp = 745.7 W, N = 1440 rpm

Formulae used: ω = (2πN)/60, P = T × ω

Soln : ω = (2 × π × 1440)/60 = 150.8 rad/s

In P = T × ω

T = P/ω = 745.7/150.8

T = 4.944 ≈ 5 N-m