Electrical Machines In DC generators, the residual magnetism is of the order of 2.5 %. 10 %. 20 %. 15 %. 2.5 %. 10 %. 20 %. 15 %. 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. 8.248 and 5.54 Ω. 14.28 and 5.54 Ω. 8.248 and 9.60 Ω. 14.28 and 9.60 Ω. 8.248 and 5.54 Ω. 14.28 and 5.54 Ω. 8.248 and 9.60 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole DC shunt generator having a wave winding supplies 50 lamps, each of 60 W at 120 V. The armature and field resistance are 0.2 Ω and 60 Ω respectively. The current in each armature conductor is 11.5 A. 13.5 A. 27 A. 23 A. 11.5 A. 13.5 A. 27 A. 23 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Induction motors normally use cast aluminium rotor because aluminium is cheaper in cost. of low resistivity. lighter in weight. easy to cast owing to its low melting point and is easily available. cheaper in cost. of low resistivity. lighter in weight. easy to cast owing to its low melting point and is easily available. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Series booster is a permanent magnet DC generator. shunt wound DC generator. series wound DC generator. separately excited DC generator. permanent magnet DC generator. shunt wound DC generator. series wound DC generator. separately excited DC generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power will be developed when back emf is All of these equal to supply voltage. double the supply voltage. half of the supply voltage. All of these equal to supply voltage. double the supply voltage. half of the supply voltage. ANSWER DOWNLOAD EXAMIANS APP
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