Page 1 of 1
A compound long shunt de generator (250V, 1000rpm) has armature resistance Ra-0.1562, series field winding resistance Rs
Posted: Sun Jul 10, 2022 11:36 am
by answerhappygod
- A Compound Long Shunt De Generator 250v 1000rpm Has Armature Resistance Ra 0 1562 Series Field Winding Resistance Rs 1 (20.27 KiB) Viewed 48 times
A compound long shunt de generator (250V, 1000rpm) has armature resistance Ra-0.1562, series field winding resistance Rsr-0.2502, shunt field winding resistance and control resistance Rsh+Rc=10052, armature current is la 40 amps. The rotational loss is 500 watts. Neglect armature reaction and core losses. The machine operates at the full load (R₁ is the load resistance connected to the terminals). 1.1. Sketch a circuit diagram of the machine and corresponding clear power flow diagram. 1.2. Determine: (1) power loss in stator circuit, Pst (ii) power crossing the air gap, Pag (iii) electromagnetic torque, T and (iv) efficiency of compound de generator.