...........motor is most suitable for push and pull actiona)Shuntb)Se...
A cumulative compound motor has a fairly constant speed and good starting torque. Such motors are used where series characteristics are required, and the load is likely to be removed totally. These motors are used in driving machines which are subject to the sudden application of heavy loads; they are used in rolling mills, punching and shearing machines, mine-hoists etc.
Hence, the correct option is (D)
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...........motor is most suitable for push and pull actiona)Shuntb)Se...
Cumulatively Compound Motor for Push and Pull Action
The most suitable motor for push and pull action is a cumulatively compound motor. Here's why:
Cumulatively Compounded Motor
- A cumulatively compounded motor is a type of DC motor where the series field winding is connected in such a way that it aids the shunt field winding in producing the magnetic field.
- This type of motor provides high starting torque and good speed regulation, making it suitable for applications that require both push and pull actions.
Push and Pull Action
- Push and pull actions refer to the ability of a motor to operate in both directions, providing both pushing and pulling forces.
- In applications where the motor needs to both push and pull loads, a cumulatively compounded motor is ideal due to its ability to provide high torque in both directions.
Shunt, Series, and Differentially Compounded Motors
- Shunt motors have high speed regulation but lack the high starting torque required for push and pull actions.
- Series motors provide high starting torque but are not suitable for applications requiring speed regulation.
- Differentially compounded motors have limited applications and are not as commonly used as cumulatively compounded motors for push and pull actions.
In conclusion, a cumulatively compounded motor is the most suitable choice for applications requiring push and pull actions due to its ability to provide high torque and good speed regulation in both directions.