Electrical Machines For a fault at the terminal of a synchronous generator, the fault current is maximum for a 3 - phase to ground fault. line to ground fault. line to line fault. 3 - phase fault. 3 - phase to ground fault. line to ground fault. line to line fault. 3 - phase fault. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole wave wound dc motor having flux per pole of 9.56 X 10-3 Wb contains 460 armature conductors with armature resistance of 0.6 ohm. Calculate the starting current flowing through the armature if the supply voltage is 240 volt. 400 Amp. 320 Amp. 0.5 Amp. 800 Amp. 400 Amp. 320 Amp. 0.5 Amp. 800 Amp. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A synchronous generator is feeding a zero power factor (lagging) load at rated current. The armature reaction is cross – magnetizing. magnetizing. ineffective. demagnetizing. cross – magnetizing. magnetizing. ineffective. demagnetizing. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In salient pole synchronous machine, the reluctance power varies as sin2δ cosδ cos2δ sinδ sin2δ cosδ cos2δ sinδ ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which is the arrangement of windings in a core type single phase transformer? Sandwiched lv and hv discs on each core limb Half lv inside and half hv outside on each core limb Lv on one core limb and hv on the other Half hv inside and half lv outside on each core limb Sandwiched lv and hv discs on each core limb Half lv inside and half hv outside on each core limb Lv on one core limb and hv on the other Half hv inside and half lv outside on each core limb ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a seperately excited DC Motor if field current is increased, it will Increase acceleration duration. Reduce armature heating. Reduce starting torque. Increase speed Increase acceleration duration. Reduce armature heating. Reduce starting torque. Increase speed ANSWER DOWNLOAD EXAMIANS APP
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