The compensating winding in the DC machine is
The compensating winding in the DC machine is
DC Motor MCQs
A dc series motor has an armature resistance of 0.06 Ω and series field resistance of 0.08 Ω. The motor is connected to a 400 V supply
A dc series motor has an armature resistance of 0.06 Ω and series field resistance of 0.08 Ω. The motor is connected to a 400 V supply
Neglecting all losses, the developed torque (T) of a DC separately excited motor, operating under constant terminal voltage, is related to its output power (P) as under
Neglecting all losses, the developed torque (T) of a DC separately excited motor, operating under constant terminal voltage, is related to its output power (P) as under
Two DC series motors connected in series draw current I from supply and run at speed N. When the same two motors are connected in parallel taking current I from the supply, the speed of each motor will be
Two DC series motors connected in series draw current I from supply and run at speed N. When the same two motors are connected in parallel taking current I from the supply, the speed of each motor will be
In flux control method the speed of DC motor is obtained _____
In flux control method the speed of DC motor is obtained _____
In flux control method the speed of DC motor is obtained _____ Read More »
A short shunt compound generator supplies a load current of 100 A at 250 V. The generator has the following winding resistances: shunt field = 130Ω, Armature 0.1 Ω and series field = 0.1 Ω . Find the Emf generated if the brush drop is 1 V per brush.
A short shunt compound generator supplies a load current of 100 A at 250 V
The method of speed control of DC Shunt motor is used for applications where a very wide range sensitive speed control is required is
The method of speed control of DC Shunt motor is used for applications where a very wide range sensitive speed control is required is
A 4 pole, lap wound d.c motor has 540 conductors and 230 V supply. The armature resistance is 0.8Ω. Its speed found to be 1000 r.p.m. the flux per pole is 25 mWb. The Induced e.m.f.and Armature current will be
A 4 pole, lap wound d.c motor has 540 conductors and 230 V supply. The armature resistance is 0.8Ω. Its speed found to be 1000 r.p.m. the flux per pole is 25 mWb. The Induced e.m.f.and Armature current will be
In very large d.c. motors with severe heavy duty, armature reaction effects are corrected by
In very large d.c. motors with severe heavy duty, armature reaction effects are corrected by
