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Why are transformer more efficient than a rotating electric machine?
Wiki User
∙ 11y ago
Transformers inherently do not have frictional losses, but Transformers and rotating machines perform completely different functions, so I'm not sure it is fair to compare them. Transformers are used to transform electric energy (the input is electric energy, and the output is electric energy). Rotating machines either take electric energy and convert it to mechanical/kinetic energy, or take kinetic energy and convert it to electric energy.
Mandy Johnston
Wiki User
∙ 11y agoTransformers inherently do not have frictional losses, but transformers and rotating machines perform completely different functions, so I'm not sure it is fair to compare them. Transformers are used to transform electric energy (the input is electric energy, and the output is electric energy). Rotating machines either take electric energy and convert it to mechanical/kinetic energy, or take kinetic energy and convert it to electric energy.
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Why sheet steel with high silicon content is used in transformer core whereas lower silicon content sheet for rotating machine?
high permeability ,low hysterisis,increased resistivity
What is electrical rotating machine?
MOTOR
What is auto transformer stater?
I think you are confusing your terms. The term 'stator' (not 'stater') is used to describe the stationary part of a rotating machine (motor, generator), as opposed to the term 'rotor' which describes the rotating part. No part of an autotransformer is normally described as a 'stator'. An autotransformer has a laminated silicon-steel 'core', around which are placed 'windings'.
Which machine have very less losses in electrical?
Transformer
How is current controlled in welding transformer?
in welding machine, the transformer used is basically a current transforrmer. so by changing the tap of secondary side of transformer, we can increase or decrease the current in the transformer.
Rotating machine that uses electrical energy?
An electric motor!
What is the Maximum efficiency machine?
The electric space heater. It's the only common machine that's 100% efficient.
How is an alternator different from transformer?
An 'alternator' is simply another term for an a.c. generator, that is a rotating machine that generates electrical energy. A 'transformer', on the other hand, is a static machine that changes the levels of voltage -they either step up a voltage or step down a voltage.
Why sheet steel with high silicon content is used in transformer core whereas lower silicon content sheet for rotating machine?
high permeability ,low hysterisis,increased resistivity
Is transformer a machine or device?
no a transformer is not an electrical machine. electrical machine is one in which the process of electro-mechanical energy conversion happens e.g motor, generator. therefore mechanical motion is always there in a machine.Engr. Saif Ali Solangisaif.a.khi@gmail.com
What is rotating machine?
MOTOR
What is the difference between manual sewing machine and an electric sewing machine?
An electric sewing machine does it's work by using electricity to move the needle up and down, and rotate the bobbin. The mechanical parts of a manual sewing machine, had to be set in motion by turning a handle, or pedal. An electric sewing machine has an electric motor attached to these rotating parts, by belt or gearing and operated by a foot switch. This makes it less tiring on the arms or feet, you can keep sewing faster and longer.
Why does a 3 phase transformer produce an alternating flux while a 3 phase induction machine produces rotating flux when fed through 3 phase supply?
In a 3-ph transformer the flux also rotates round the 3 cores but you don't see anything moving.
What is electrical rotating machine?
MOTOR
What is the difference between transfermer and generator?
They are both classified as electrical machines. However a generator is a 'rotating' machine, whereas a transformer is a 'static' (i.e., has no moving parts) machine. A generator converts one form of energy into another (kinetic to electrical), whereas a transformer simply transfers the energy supplied to its primary circuit to its secondary circuit while either stepping up, or stepping down, the primary voltage.
What is auto transformer stater?
I think you are confusing your terms. The term 'stator' (not 'stater') is used to describe the stationary part of a rotating machine (motor, generator), as opposed to the term 'rotor' which describes the rotating part. No part of an autotransformer is normally described as a 'stator'. An autotransformer has a laminated silicon-steel 'core', around which are placed 'windings'.
What type of welding machine does not have positive and negative terminal?
Transformer type welding machine
