A 15 kW, 3 Phase, 6 Pole, 50 Hz, squirrel cage induction motor has th…
Previous year question for Electrical Machine Design.
Question
A 15 kW, 3 Phase, 6 Pole, 50 Hz, squirrel cage induction motor has the following data :
Stator bore diameter = $0.32 \text{ m}$; axial length of stator core = $0.125 \text{ m}$; number of stator slots = $54$; number of conductors per stator slots = $24$; current in each stator conductor = $17.5 \text{ Amp}$; full load power factor = $0.85$ lagging. Design a suitable Cage Rotor giving number of rotor slots, section of each bar and section of each ring. The full load speed is to be about $950 \text{ r.p.m}$ approximately. Use copper for the rotor bars and rings. Resistivity of ring is $0.02 \text{ ohms/m} \text{ }\&\text{ } \text{mm}^2$.
- Year: 2018
- Subject: Electrical Machine Design