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What happens if load torque is same at all speed in separately excited dc motor?
Wiki User
∙ 9y ago
It means that the armature must be supplied with a constant-current source.
Wiki User
∙ 9y ago
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What happens if load torque is same at full speed in separately excited dc motor?
Same as what? at maximum speed and torque, the motor delivers maximum power.
Is torque and current proportional?
Sometimes, for example in a separately excited dc motor. But in a series-wound dc motor the torque is proportional to current-squared, which gives the motor a very high starting torque and this makes series motors very popular for traction.
What is separately excited motor?
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What is separately excited DC motor?
The main difference between the Separately excited motor and the shunt motor is the field cct where as in the second it has its own voltage supply.AnswerI think you mean 'generator', not 'motor'. A 'self-excited' motor is one in which the output supplies the field current, as well as the load current. A 'separately-excited' motor is one in which the field current is provided from an external source.
Which the effect of the increase of the armature voltage on the speed of a direct-current separately excited motor in case of constant load?
Increasing the armature voltage would increase the speed. In a separately excited dc motor the speed adjusts so that the back emf generated by the armature is a little less than the supply voltage. The difference, divided by the resistance, gives the current drawn, which is also proportional to the shaft torque supplied to the load.
Is a DC motor single excited or double excited?
It is doubly excited if it is sparately excited dc motor, singly excited if it is self excited machine
Why synchronous motor called double excited motor?
AC and DC supply sources we are given to motor so we are called double excited motor
How do you calculate hydraulic motor torque?
how to calculate hydraulic motor torque
Does a bar magnet exert a torque on itself due to its own magnetic field?
electric motors produce torque so in the sense yes
What is torque percent in electrical motor and unit of torque?
In SI, torque is measured in newton metres (N.m). The percentage torque varies according to the design and specifications of a motor.
What is the difference between max torque and breakdown torque of a electric motor?
Max torque and breakdown toarque are the same...,.the point at which a motor will stop/stall.
What is reluctance torque?
torque of synchronous motor with out feild exitation
