Explanation: 2-point starter is enough to start the DC series motor.
Which type of starter is used for DC motor?
Shunt wound and compound wound DC motors typically use either a 3 point or 4 point starter.
How does a DC series motor start?
A series DC motor converts electric energy to mechanic energy based on the electromagnetic principle. In this type of DC motor, a power supply terminal sits at one end of the armature and field coils. By applying the voltage, power starts in these terminals and passes through armature and field windings.
Which of the following is not a starter used in DC motors?
Explanation: 3-point starters are used only for shunt and compound motors, they are not used for series motors. Three-point starter is employed where motor field current can be varied in a narrow range and so does the motor speed. Explanation: Starting resistance of a DC shunt motor and DC compound motor is low.
Which DC motor has maximum self loading property?
Which DC motor has got maximum self-loading property? Explanation: A differentially compound DC motor, flux reduces so sharply at small increase in load at higher values of load.
Why is DC motor current so high?
Answer: The starting current is high as there is no back EMF or counter EMF present in the armature circuit because atstarting counter EMF is zero. … It’s armature has very less resistance due to this it need more current at starting time. Hence DC starters are used to limit the starting current ofmotor.
What is the principle of DC series motor?
Like any other motor, series motors convert electrical energy to mechanical energy. Its operation is based on simple electromagnetic principle by which when the magnetic field created around a current carrying conductor interacts with an external magnetic field, a rotational motion is generated.
Where is DC series motor used?
⇒ DC series motors are used where high starting torque required. These motors are only used where the variation of speed is possible. series motors are not suitable for constant speed applications. ⇒ DC series motor is used in a vacuum cleaner, traction systems, sewing machines, cranes, air compressors etc.
What are the types of starter?
Types of Magnetic Motor Starters
- Direct-On-Line Starter. The direct-on-line starter is the simplest form of motor starter, other than a manual starter. …
- Rotor Resistance Starter. …
- Stator Resistance Starter. …
- Auto Transformer Starter. …
- Star Delta Starter.