0
the loading arrangement used in normal electrical machines is brake drum - spring balance arrangement. This is used to calculate the torque and output power.
the formula for torque is 9.81*(diffference between the spring balance) * radius of brake drum.
thee output power obtained is 2*π*motor speed*torque obtained
A belt moving over this break drum provides necessary torque to the shaft of the motor, and in turn loads the shaft with a finite torque. Two calibrated spring balances are connected to either side of the belt, which is moving over the break drum
higher power motors will have a bigger diameter shaft to easily handle more torque
no different from ac
Dc motors have much higher torque at low speeds which is why they are used in hand tools and locomotives
Add your answer:
Earn +20 pts
What DC motor is used for traction?
dc series motor is used for traction...
What the purpose of starting resistor used in dc motor?
describe how to use starting resistors to star a DC motor
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 a DC shunt motor?
A DC shunt motor is a motor using DC supply with the the inductor connected parallel to the armature.
What are uses of bidirectional dc motor?
6V dc motor
What DC motor is used for traction?
dc series motor is used for traction...
If the speed of the dc shunt motor falls due to loading what will be the effect?
on adding load on a dc shunt motor, the amount of current and torque will increase. but terminal voltage will decrease
What is dc compound motor?
The DC compound engine is a blend of the arrangement engine and the shunt engine. It has an arrangement field winding that is associated in arrangement with the armature and a shunt field that is in parallel with the armature.
Can a DC dynamo act as a DC motor?
Yes it can and the otherway aroud a DC motor can be used as a dynamo
Is DC motor used in a textile mill?
yes dc motor is used in textile mills for presicion control.
Which motor used in ac and dc?
universal motor
An example of a stepper motor miniature dc motor and an ac motor?
stepper motor :- motor used for controlling direction of movement of robotic arm dc motor :- motor used in cellphones as vibrators ac motor :- motor used in textile machinery
Type of dc motor used by fan?
Synchronous motor or induction motor
What the purpose of starting resistor used in dc motor?
describe how to use starting resistors to star a DC motor
What motor is used for rail way station?
DC Traction Motor.
Why dc supply is being used in studying the effect of temperature on the field winding resistance of a dc motor?
Because tests on a dc motor are always done using dc.
What is meant by bressless DC motor?
I've not heard the term "bressless" - I think you mean "Brushless" - which is a DC Motor that does not use the usual commutator/brush arrangement. For a great answer to this question, see the Wikipedia article in the related links section.
