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There is an application which required pulsating loads, punch presses. The most preferred machines would be
- a)compound dc machine
- b)series dc machine
- c)shunt dc machine
- d)all of the mentioned
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
There is an application which required pulsating loads, punch presses....
It is compound machine whose flux can varied higher as well as lower in order to have variable torques.
Most Upvoted Answer
There is an application which required pulsating loads, punch presses....
Compound DC Machine is the most preferred machine for pulsating loads in punch presses due to its characteristics:
1. Ability to handle varying loads:
Compound DC machines have both series and shunt field windings, allowing them to adjust their speed and torque characteristics based on the load requirements. This makes them suitable for applications with pulsating loads like punch presses.
2. High starting torque:
Compound DC machines provide high starting torque, which is essential for punch presses to quickly overcome the inertia of the moving parts and deliver the required force for punching.
3. Smooth operation:
The combination of series and shunt field windings in compound DC machines results in smoother operation compared to series or shunt machines alone. This is crucial for punch presses to ensure precise and consistent punching without any jerks or fluctuations in force.
4. Efficient power transmission:
Compound DC machines are known for their efficient power transmission, which is crucial for punch presses to deliver the required force without wasting energy. This helps in reducing operating costs and improving overall productivity.
In conclusion, compound DC machines are the most preferred choice for applications like punch presses that require handling pulsating loads due to their ability to adjust to varying load conditions, provide high starting torque, ensure smooth operation, and offer efficient power transmission.
1. Ability to handle varying loads:
Compound DC machines have both series and shunt field windings, allowing them to adjust their speed and torque characteristics based on the load requirements. This makes them suitable for applications with pulsating loads like punch presses.
2. High starting torque:
Compound DC machines provide high starting torque, which is essential for punch presses to quickly overcome the inertia of the moving parts and deliver the required force for punching.
3. Smooth operation:
The combination of series and shunt field windings in compound DC machines results in smoother operation compared to series or shunt machines alone. This is crucial for punch presses to ensure precise and consistent punching without any jerks or fluctuations in force.
4. Efficient power transmission:
Compound DC machines are known for their efficient power transmission, which is crucial for punch presses to deliver the required force without wasting energy. This helps in reducing operating costs and improving overall productivity.
In conclusion, compound DC machines are the most preferred choice for applications like punch presses that require handling pulsating loads due to their ability to adjust to varying load conditions, provide high starting torque, ensure smooth operation, and offer efficient power transmission.
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