Electrical Machines Dynamic braking is employed to brake non reversing drive reversing drive None of these both 1 and 2 non reversing drive reversing drive None of these both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The flux is maximum in the following part of a DC motor: under the interpole. pole core. under leading pole tip. under trailing pole tip. under the interpole. pole core. under leading pole tip. under trailing pole tip. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The low voltage winding of a 400/230 V single phase 50 Hz transformer is to be connected to keep the magnetization current at the same level in both the cases the voltage at 25 Hz should be 65 V 115 V 230 V 460 V 65 V 115 V 230 V 460 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dynamic braking can be used for All of these series motors. compound motors. shunt motors. All of these series motors. compound motors. shunt motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The results of a slip test for determining direct axis (Xd) and quadrature axis (Xq) reactances of a star connected salient pole alternator are given below Phase values: Vmax = 108 V ; Vmin = 96 V Imax = 12 A ; Imin = 10 A Hence the two reactances will be Xd = 9.6Ω and Xq = 9Ω Xd = 9Ω and Xq = 9.6Ω Xd = 10.8Ω and Xq = 8Ω Xd = 8Ω and Xq = 10.8Ω Xd = 9.6Ω and Xq = 9Ω Xd = 9Ω and Xq = 9.6Ω Xd = 10.8Ω and Xq = 8Ω Xd = 8Ω and Xq = 10.8Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Find the reactance voltage when current is changed from -2A to 2A in 4 sec and self inductance is 1H? 2 V 0 V 1 V 4 V 2 V 0 V 1 V 4 V ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS