Electrical Machines Ward Leonard control is provides speed control Below rated speed. In one direction only. Above rated speed. In both direction. Below rated speed. In one direction only. Above rated speed. In both direction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction depends on which of the following? power factor of load None of these magnitude of load current both 1 and 2 power factor of load None of these magnitude of load current both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A slip ring Induction motor runs at 290 rpm at full load, when connected to 50 Hz supply. Determine the number of poles and slip. P = 40, s = 5.79 %. P = 20, s = 3.33 %. P = 60, s = 0.96 %. P = 50, s = 4.43 %. P = 40, s = 5.79 %. P = 20, s = 3.33 %. P = 60, s = 0.96 %. P = 50, s = 4.43 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The result of slip test on a 3-phase, 20 KVA, 400 V, 50 Hz connected salient pole alternator is given below- Phase value: Vmax = 100 V, Vmin = 96 V, Imax = 10 A and I min = 7 A. The direct and quadranature axis reactances are respectively 14.28 and 9.60 Ω. 14.28 and 5.54 Ω. 8.248 and 9.60 Ω. 8.248 and 5.54 Ω. 14.28 and 9.60 Ω. 14.28 and 5.54 Ω. 8.248 and 9.60 Ω. 8.248 and 5.54 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Generators work on the principle of production of statically induced emf. None of these dynamically and statically induced emf. dynamically induced emf. statically induced emf. None of these dynamically and statically induced emf. dynamically induced emf. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The power input to a 3 - φ induction motor is 60 kW and stator loss is 1 kW the rotor cu loss per phase is slip X 50 / 3. 1. slip X 59 / 3. slip X 69 / 3. slip X 50 / 3. 1. slip X 59 / 3. slip X 69 / 3. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS