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Are the friction losses of the machine linear in induction motor electrical machines?
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∙ 7y ago
yes
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How can an induction motor act as perpetual motion machine?
Perpetual motion machines are an impossibility. Energy conversion is never 100% efficient. Even if it were, friction is never zero.
Why so helpful to reduce friction on simple machines?
Friction force oppose motion between two bodies that are in contact. This force is important in machines and pulley systems in that it enables the gears to have grip and there is no unnecessary sliding.
What are the factors which influence the choice of specific magnetic and electric loadings of a synchronous machine?
The magnetic loading and electrical loading is most important parameter in the electrical machine. the electrical machine's torque is define as T=winding factor*electrical loading*magnetic loading*rotor volume You can see that the magnetic loading can decide electrical machines volume so this parameter is important.
What is difference between electrical angle and mechanical angle?
Electrical angle is half of mechanical angle in unipolar electrical machines. In multipolar electrical machines, the relationship between the mechanical angle and electrical angle is Electrical angle = (P/2) x Mechanical angle where: P = Number of poles.
What is armature current according to generator terms?
Generator is a machine which converts mechanical energy into electrical energy.For conversion of mechanical energy in to electrical energy, it uses electromagnetic induction principle.For electromagnetic induction to happen, three things are required.These are:Magnetic fieldConductorMotionSo, when the conductor starts rotating through the magnetic field or the magnetic field cuts the conductor, emf( electromotive force) or voltage is induced in the conductor.So, the conductor in which the voltage is induced in it is known as armature
How can an induction motor act as perpetual motion machine?
Perpetual motion machines are an impossibility. Energy conversion is never 100% efficient. Even if it were, friction is never zero.
What are electrical machines and electrical drives?
machine is an electrical device
What effect does friction have on a machines efficiency?
Efficiency of the machine is reduced due to loss of energy by friction.
What can make machines more efficient by reducing friction?
the relationship between them is that the machines have friction that makes the machine goes
Why it is important for you to reduce friction on compound machine?
Because too much friction can damage the simple machines that make up the compound machine.
How is a sewing machine classified?
Present day sewing machines are complex electrical machines.
Why would machines work better without friction?
The smaller amount of friction a machine has, the more efficient it becomes.
What do machines use to lower friction between moving parts?
Ideal Machine
What machines use to lower friction between moving parts?
Ideal Machine
What are disadvantages of heat produced by friction in machines?
energy used for the machine will get lost as heat .machine parts will get worn out.
Does fricition speed up the motion of a machine?
Nope - friction slows machines down.
What is the name of the machine of the force that prevents machines from operating at 100 percent efficiency?
Friction.
