what is armature reaction?explain in simple words?and what
is its infleunce on dc motor
- 16 Answers
- 40210 Views
- I also Faced
- E-Mail Answers
Answer Posted / engr. irfan jamil
If the magnetic field windings of a DC machine are
connected to a power supply and the rotor of the machine is
turned by an external source of mechanical power then a
voltage will be induced in the conductors of the rotor. If
a load is connected to the terminals of the machine a
current will flow in the armature (rotor) windings. This
current will produce a magnetic field of its own , which
will distort the original magnetic field from the machine's
poles. This distortion of the flux in a machine as the load
is increased is called ARMATURE REACTION. This armature
reaction causes two main problems in DC machines: neutral-
plane shift and flux weakening.
| Is This Answer Correct ? | 4 Yes | 11 No |
Post New Answer View All Answers
hi friends i m from electrical branch and seeking for tech. + apti. both papers of hpcl plz get it available as soon as possible
Can you used moeller lzm1 mccb in a dc system with 125vdc and 20ka short circuit current , beside is it have 24 or 48 volt shunt ? Beside how long current can through from An MCB shunt contacts? (like Z7-AS 24 V)?
Sir, I have applied for the of Assistant.engineer of NPDCL. please send me all AP TRANSCO AND JENCO solved papers of previous exams . I requested send me the papers to my id as soon as possible (rajanikanth_peddi@yahoo.co.in) (This is very urgent) Thank You,
XYZ
Diagram and details of polarity test for Current Transformer 11kv 400/200/100/1A
please give some hindalco placement papers for written exam
pls,send the previous year written test questions.
what is a reactive power? what is the relation with power factor?
How to calculate VCB rating for 33KV ,25 MW Power line?
Draw the vector diagramme for Asynchronous Induction Generator at noload,half load and fullload.
What types of high speed CMOS circuits have you designed?
TO CALCULATE THE RESISTANCE OF GRR OF HT MOTOR 400KW WHEREAS STATOR VOLTAGE 6.6KV AND ROTOR VOLTAGE 705V AND ROTOR CURRENT IS 346A.
hi friend i am going too attend for hpcl in this month please help me by sending written test question papers i am in the stream of E.E.E
why and how voltage sharing in transformer, during magnetic balance test ?
How much minimum insulation required between 11kv/3.3kv transformer windings?
