What are the advantages of DC series motor?

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- State the modification to be done in dc series motor to work satisfactorily as ac series motor. State applications of ac series motor.
- Describe the reason of using dc series motor for electric trains.
- Why dc series motor should not be started at no load?
- Why a dc series motor has a high starting torque?
- In a 2 kW, 200 V, 1000 rpm. DC series motor the torque at full load was found to be 0.3 N -m. The torque at
- Brake test on DC series motor
- In a D.C. series motor, if the armature current is reduced by 50%, the torque of the motor will be equal to?
- The speed of a D.C. series motor is?
- The direction of rotation of a D.C. series motor can be changed by?
- When a D.C. series motor is connected to A.C. supply, the power factor will be low because of?
- A D.C. series motor is that which?
- A.C. series motor as compared to D.C. series motor has?
- If a D.C. series motor is operated on A.C. supply, it will?
- We connected a 35V dc supply to a resistance of 600 Ohm in series with an unknown resistance
- What are the speed control methods of dc motor?
- In a A.C. series motor armature coils are usually connected to commutator?
- A DC voltage source is connected across a series RLC circuit. Under steady-state conditions, the applied DC
- What is the principle of DC motor?
- What is the back EMF of a dc motor?
- When two D.C. series motors are connected in parallel, the resultant speed is?
- Write two applications of D.C. series motor.
- What is the RPM of a DC motor?
- When two D.C. series generators are running in parallel, an equilizer bar is used?
- What would happen if a DC motor was supplied with AC ?
- State any four advantages of A. C. over D. C .
- In A.C. series motor compensating winding is employed to?
- In DC motor iron losses are occurred in?
- If field current is decreased in shunt dc motor, the speed of the motor
- State the function of following parts of DC motor : i) Yoke ii) Poles iii) Field winding iv) Commutator.
- In a 4-pole wave winding connected dc motor, the cross-magnetizing AT/pole for a brush shift of θ radians
- Which type of starter is used to start the DC motor?
- In case of conductively compensated D.C. series motors, the compensating winding is provided?
- direction of DC motor is given by Fleming's left hand rule or right hand rule?
- In a DC motor, it is important to place the brushes along ______
- State at least one function and the material used for the following parts of DC Motor.
- Why does the speed of a DC shunt motor decrease as the load increases?
- A 240 V, dc shunt motor draws 15 A while supplying the rated load at a speed of 80 rad/s.
- The function of a brush and commutator arrangement in a dc motor is to
- The no-load speed of a single-phase SCR bridge converter fed separately excited dc motor operating at a
- During rheostat braking of D.C. series motors?
- A separately excited dc motor operating in first quadrant is fed from 3-phase semi -converter free -wheeling
- State any four applications of DC shunt motor.
- A 200 V dc shunt motor is running at 1000 rpm and drawing a current of 10 A. Its armature winding resistance
- Armature control of DC motor
- Field control of DC motor
- Four Quadrant Operation Of DC Motor
- In case the back e.m.f. and the speed of a D.C. motor are doubled, the torque developed by the motor will?
- In case the conditions for maximum power for a D.C. motor are established, the efficiency of the motor will be?
- DC motor gross torque example
- DC shunt motor

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