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How is thermal overload protection done in stator windings of motor?
Wiki User
∙ 12y ago
one way is to use RTD sensor put inside the motor windings. The RTD sensor is connected to an electronic thermal overload relay. This type of relay can provide running temperature of the motor, on the electronic thermal over load relay display panel. RTD sensor is a wire wound resistor that changes resistance depending on the temperature
Wiki User
∙ 12y ago
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Does armature rotates?
Typically the armature windings are in the stator of a generator, which does not rotate. Typically the field windings are on the rotor, which rotates.
What is a thermal overload?
the relay used to protect the generator/motor from overload currents. And to protect insulation of the stator windings.
What is stater and rotar?
A stator is the stationary part of an electric motor. The stator contains the windings in which the electrical source is connected to. The rotar is the core and shaft that rotates when electricity is applied to the stator
Why rotor slots is more than stator slots in induction motor?
rotor slot more. it is to get a large rotor inductance value of inductance the stator windings
What is stator of the armature?
The 'stator' is the generic term for the stationary parts of a machine, including its frame, magnetic circuit, poles, windings, etc.
What is thermal overload?
The load current is made to flow through the thermal overload relay, which is actually a bimetalic strip. Beyond a prespecified current the bimetalic strip tend to deflect due to heat (thermal effect) thus cutting off the circuit and hence it acts as an over load relay protection.
Does the stator and the armature each have the same number of windings?
No.
How energy is transferred from stator to rotor?
when current is passing through the stator windings of motor magnetic field is develop ,due to it emf is produced inside the stator windings,that emf is further cuts the emf across stator due to which current flowing inside the rotor.
Does armature rotates?
Typically the armature windings are in the stator of a generator, which does not rotate. Typically the field windings are on the rotor, which rotates.
What is a thermal overload?
the relay used to protect the generator/motor from overload currents. And to protect insulation of the stator windings.
What does stator dose on an alternator?
The stator windings produce current when the rotor spins its magnetized head within the stator windings. The current is dc and is changed into ac and back into usable dc current. This is so you don't get lights flaring associated with the generators of the old days.
What is stater and rotar?
A stator is the stationary part of an electric motor. The stator contains the windings in which the electrical source is connected to. The rotar is the core and shaft that rotates when electricity is applied to the stator
What are the three key parts of any electric motor?
The Stator, the Rotor and the Windings.
How electrical genrator work?
The stator and the armature are both wound. An excitation current is applied to the field(stator) windings from a DC source like a battery in order to produce a magnetic field. The armature is connected to a turbine or diesel engine via a shaft. As the armature turns, it's windings cut the magnetic flux of the field windings inducing an emf in the armature windings.
Where is the alternator stator found?
Lines inside of case, big ring of copper windings
What is the main part of ac motor?
shaft, windings, ball bearings, armature, stator, commutator, brushes, terminals, case.
Why rotor slots is more than stator slots in induction motor?
rotor slot more. it is to get a large rotor inductance value of inductance the stator windings
