- 4 A 3 Phase 220 V 50 Hz 1500 Rp M Mesh Connected Synchronous Motor Has A Synchronous Im Pedance Of 4 Ohm Per Phas 1 (19.14 KiB) Viewed 39 times
4. A 3-phase, 220-V, 50-Hz, 1500 rp.m., mesh-connected synchronous motor has a synchronous im- pedance of 4 ohm per phase. It receives an input line current of 30 A at a leading power factor of 0.8. Find the line value of the induced e.m.f. and the load angle expressed in mechanical degrees. If the mechanical load is thrown off without change of excitation, determine the magnitude of the current under the new conditions. Neglect losses. [268 V; 6", 20.6 A] 5. A 400-V, 3-phase, Y-connected synchronous motor takes 3.73 kW at normal voltage and has an