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Why dc shunt generator does not have armature resistance?
It does have armature resistance.
What is armature reactions in a synchronous machine?
Armature reaction is the effect of armature flux on the flux generated by the fied windings.Cross magnetisation and Demagnetising are its consequences.
What is the function of armature core in dc generator?
this is wer the armature conductors ar being mounted,therefor it helps the flexibility of armature conductors.
When a shunt generator fails to build up the voltage then how to rectify the fault?
It fails to build up because self excited DC motor's armature have only one direction of rotation. So that if the poles of the armature are reversed, then this causes the reduction in the residual magnetism and eventually, it will stop.
What is Comparison of armature controlled and field controlled DC servo motor?
Difference between field controlled and armature controlled is that field control is open loop and armature current is closed loop.
What causes the electrical polarity of the armature to reverse?
poles of an armature can be reversed by the arrangement of split-rings
What causes a starter to draw too much power from the battery?
bad armature bushings
What causes uneven heating of the earth?
The earth's tilt causes an uneven heating of the earth. The uneven heating due to the tilt causes the different seasons throughout the year.
The sudden heating and cooling of air causes what?
It causes tornadoes
What causes the unevening of the Earth?
The earth's tilt causes an uneven heating of the earth. The uneven heating due to the tilt causes the different seasons throughout the year.
What is armature reaction in dc motor?
Armature reaction is effect of armature flux on main field flux. Basically there are two windings in a dc motor - Armature winding (on stator) and field winding (on rotor). When we excite the field winding, it produces a flux which links with the armature. This causes an emf and hence a current in the armature. This current in armature produces another flux which lags the main flux. This is referred to as armature reaction. It has two effects on the machine: 1. Demagnetising effect: It reduces the strength of the main flux. 2. Crossmagnetising effect: Its effect is that it bends/distortes the the main flux line along the conductor
Heating causes an object to?
expand
Armature reaction in a DC generator?
ARMATURE REACTION in DC MachineAll current-carrying conductors produce magnetic fields. The magnetic field produced by current in the armature of a dc generator affects the flux pattern and distorts the main field. This distortion causes a shift in the neutral plane, which affects commutation. This change in the neutral plane and the reaction of the magnetic field is called armature reaction.
What causes most the heating of the troposphere?
The sun is the most useful cause for the heating of the troposphere
What causes most of the heating of the trosophere?
the sun
What causes most of the heating in the tropopause?
love
What is the difference between armature reaction and armature reactance?
armature reactant means loss in armature associated with inductive properties of the coil, while armature reaction include losses due to magnetizing component of current flowing through armature.
