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What motor is NOT suitable for use as a DC machine?
What motor is NOT suitable for use as a DC machine?
Derive emf equation of a DC machine?
equation of ac machine
How AC is converted into DC in welding machine?
rectifyer
How many parallel paths in a wave winding of a 4 pole dc motor?
2
What is the use of magnetization curve of DC shunt generator?
The armature voltage is a critical parameter in the determination of performance characteristics for the DC machine. The armature voltage has been shown to be proportional to the magnetic flux density per pole and the armature speed. Thus, the armature voltage will also exhibit nonlinear behavior when saturation occurs. The analysis of DC machine performance typically requires that the characteristics of the armature voltage saturation be known. This information is typically provided in a plot of the armature voltage vs. field current (magnetization curve) for a given operating speed
What two purposes do the pole shoes of the field pole pieces of dc machines serve?
The pole shoes of the field pole pieces in DC machines serve two primary purposes: first, they help to distribute the magnetic field more evenly across the air gap, which enhances the efficiency of the machine; second, they provide a larger surface area for the field windings, allowing for better heat dissipation and supporting the mechanical structure of the machine. This design improves both the performance and longevity of the DC machine.
When pole flux of dc motor is zero what is its speed?
when the pole flux is zero there is no induced emf in the armature conductor of dc machine as a result of this there is no back emf for controlling action so speed become dangerously high or we can say it will be infinite.
In a dc generator why does total flux per pole decrase if the load on the machine increases even thought the field current is constsn?
Due to armature reaction
What motor is NOT suitable for use as a DC machine?
What motor is NOT suitable for use as a DC machine?
What is the important of brush in DC machine?
The slip rings are the most important brush in DC machine.
What is swinburne's test of DC shunt motor?
swinburne's test on dc shunt machine is to predetermine the efficiency of the dc machine , but it is not accurate it is just like estimation of efficiency of dc shunt machine when it is run as a motor and a generator............................
What is an dc meachine?
it is a machine which operates on the dc power source.
Why DC suuply used in Excitation of Alternator?
for torque improvement in armature and create n-pole or s-pole in armature a dc source is used in alternator armature.
How many types of DC machine?
05 types of dc machines
Derive emf equation of a DC machine?
equation of ac machine
What is pole core?
A pole core is a word often used in dc machines which provides space for field winding
How do you make DC generator?
A DC generator is a DC machine that is driven by an external rotating force. It is constructed the same as a DC motor.
