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What is the reason carbon brush dc motor speed will be up and down?
Wiki User
∙ 11y ago
The RPMs of a D.C. motor will vary depending on the torque required for the application. The more torque required the slower the RPMs. Higher torque requirements will also increase the AMP draw of the motor. Other reasons the RPMs can vary is heat build up, low voltage of batteries, cable size, connection condition and others. You need to make sure your connections are clean, the cables are thick enough to handle the AMP load and your batteries are fully charged for peak performance.
Wiki User
∙ 11y ago
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What are the functions of slip ring carbon brush external resistor in an alternalting EMF generator?
good question the use of slipring carbon brush is to give excitement to the generator , as the carbon brosh contact the rotor slip the rotaion and the speed of the generator increases we can say as an external force by anonrafee blueroz_27@yahoo.com
What is the importance electric motor?
The main reason is the motor’s variable speed behaviour. When the voltage applied to the armature of a DC motor increases, themotor’s speed increases correspondingly.Another reason is the DC motor can develop full torque from zero up to its base speed. This constant-torque characteristic allows DCmotors to be used on applications such as conveyor belts, elevators, cranes,extrudesand mixers,amongstothers. The full torquefrom zero speed is useful when the application needs to be stopped when fully loaded, and then got moving again
Can you run a 230v 60HZ motor on 230v 50HZ power?
You may or you may not. It all depends on the task you are using the motor. If speed is not a concern for you then you may, but for sensitive systems where changes in motor speed affects the system then you may not. The reason is that the frequency of the power supply affects the motor speed. Frequency is directly proportional to speed.
Which motor rotate above synchronous speed?
An induction motor rotating at higher than synchronous speed would be generating power, thus would be a generator. No motor operating as a motor runs above synchronous speed.
What is constant speed DC motor?
Dc shunt motor is constant speed motor.Its speed is constant with armature current.This shunt motor is used in paper mills and drilling machines
What is the purpose of the third brush in a typical wiper motor?
The third brush in a conventional automobile windscreen wiper motor is used to select fast speed. The third brush is located closer to the earth brush than the normal brush. This means there are fewer armature windings between the two contact points which gives a reduced resistance allowing more current to flow and therefore gives a higher speed of operation
Do dc motors and generators has slip ring if so for what?
Yes a slip ring motor is there. There is a slip ring and a brush in the motor to add external resistance to the motor inorder to be able to control its speed.
What are the functions of slip ring carbon brush external resistor in an alternalting EMF generator?
good question the use of slipring carbon brush is to give excitement to the generator , as the carbon brosh contact the rotor slip the rotaion and the speed of the generator increases we can say as an external force by anonrafee blueroz_27@yahoo.com
What is the importance electric motor?
The main reason is the motor’s variable speed behaviour. When the voltage applied to the armature of a DC motor increases, themotor’s speed increases correspondingly.Another reason is the DC motor can develop full torque from zero up to its base speed. This constant-torque characteristic allows DCmotors to be used on applications such as conveyor belts, elevators, cranes,extrudesand mixers,amongstothers. The full torquefrom zero speed is useful when the application needs to be stopped when fully loaded, and then got moving again
Explain how a permanent magnet windscreen wiper motor achieves 2 speeds?
Almost certainly due to the Voltage allowed to the motor by the controller (resistor). Adding a resistor will work, but is inefficient as the unused energy is wasted as heat. Two speeds are achieved by using a third brush, With the standard brushes in use. 180 derees around the commutator, current passes through all the rotor windings. The resistance sets a specific current draw and the motor runs at a standard speed. The high speed switch position feeds power in tothe motor through a third brush set at about 160 degrees from the earth brush. Current now passes through fewer rotor windings - less resistance - more current flow - higher motor speed.
What is the speed of DC series motor at no load?
No load speed is the speed that the motor run when it has no load, i.e., the motor is separated from the engine, that speed is than greater than the rated speed, because the rated speed is the speed whwn the motor are linked to the load and it is the full load.
Why is a synchronous speed motor considered a constant speed motor?
synchronous motor is a constant speed motor because it will only run at a synchronous speed or not at all.the speed can be changed by changiing the frequency only ns=120f/p
Can you run a 230v 60HZ motor on 230v 50HZ power?
You may or you may not. It all depends on the task you are using the motor. If speed is not a concern for you then you may, but for sensitive systems where changes in motor speed affects the system then you may not. The reason is that the frequency of the power supply affects the motor speed. Frequency is directly proportional to speed.
What came out first need for speed carbon or need for speed undercover?
The answer is Need for Speed Carbon Carbon Came In 2006 , Undercover in 2008
Which DC motor is constant speed motor?
Dc shunt motor is constant speed motor.Its speed is constant with armature current.This shunt motor is used in paper mills and drilling machines
What is the unit of speed of rotation of a motor?
Motor speed is a term we often use to speak to the rotational speed of a motor. And often we talk about the speed of rotation in revolutions per minute, or RPM.
How do you control the speed of a pneumatic motor?
The speed is varied by throttling the air flow into the motor.
