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For a D.C motor it is the field windings which must always be in series with the armature windings.
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∙ 10y ago
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What is interpole in dc motors?
the armature current is brought thru the interpole winding near the brushes this shifts the electrical null to reduce arcing with heavy loads there were arrangements with small motors to shift the brush holder rings but the interpole has no moving parts and works under all loading conditions
Why does the field winding of a series dc machine has less number of turns than that of a dc shunt machine?
The series winding takes the full load current of the generator. So it require only a few turns to produce the required magnetic field and so the resistance is lower.
What is lap winding?
The lap winding is used in dc generators designed for high-current application
What is the function of field winding in DC generator?
The motor needs the current and magnetic flux to create motion The magnetic field is created by field winding where as armature carries the current resulting into the rotation of armature
Lap winding and wave winding?
Both lap winding and wave winding are found in the use of DC generators. The main difference is as follows: lap winding is high current, low voltage, and wave winding is low current, high voltage.
What is interpole in dc motors?
the armature current is brought thru the interpole winding near the brushes this shifts the electrical null to reduce arcing with heavy loads there were arrangements with small motors to shift the brush holder rings but the interpole has no moving parts and works under all loading conditions
Why are the compensating winding used in dc motor?
compensating winding is used for equal load sharing of two generators running in parallel. while interpole winding is used to minimise the effect of armature reaction by supporting the main field.
Why does the field winding of a series dc machine has less number of turns than that of a dc shunt machine?
The series winding takes the full load current of the generator. So it require only a few turns to produce the required magnetic field and so the resistance is lower.
What is PMDC motors?
PMDC-Permanent Magnet DC motor is a DC machine where the Permanent Magnets form the stator of the machine instead of conventional Field winding. It works on the same principle of electromagnetic induction.
Working of DC generator?
dc generator is mechanical energy into convert electrical energy which used in machine part of stator in a out part & rioter is inner part and voltage induced armature winding and current pass is Field winding it is magnetic flux generate
What is the need for starters in an dc machine?
To limit the starting current, which can be significantly larger than the running current -large enough to overheat the machine's winding and , possibly, causing insulation failure.
What is the purpose of a coil winding machine?
For winding coil.
What is the conditon to connect a DC supply in primary of transformer?
Dc voltage level should not exceed the current carrying capacity of the winding. since winding resistance is very small. We need to be careful in giving the dc voltage to transformer winding.
How many turns in primary winding of a welding machine?
primary winding and secondary winding how this turn.
What is lap winding?
The lap winding is used in dc generators designed for high-current application
Can a shunt field winding be used as a series field winding in dc series motor?
aster
What is the function of field winding in DC generator?
The motor needs the current and magnetic flux to create motion The magnetic field is created by field winding where as armature carries the current resulting into the rotation of armature
