Answer / hareesh k.s.

dc series motor can work in ac also.while connecting to ac
there is change in flux due to the alternative nature of
the ac supply, that cuts by the armature which results the
rotation of the armature.

Answer / masoom raza

in ac both polarity changes which changes the flux and current
direction in field and armature simultaneously. as torque is product of flux and current(in armature)is always positive hence it will rotate in one direction only.for this series motor is also called universal motor.

why transformer rating in KVA ?

8 Answers   Bhel, TATA, Voltage,

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In auto transformer if power transferred inductively and conductively are same, the ratio of output/input voltage is A 1 B 0.7 C 0.5 D none of above

2 Answers   Getco,

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I want to know the principle of rotating flux transformer.

1 Answers  

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please give me all the Alarm .Trip ,Safety Relays & Conditions of UPS Systems mail me on ashokbabunhce@gmail.com

0 Answers  

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6 Answers  

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1 Answers   PSEB,

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0 Answers  

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2 Answers   KPIT,

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what does hapen if suddently frequency doubled

1 Answers  

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What are interpoles and commutation windings?Why r they used?

1 Answers  

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dear all i am kumara now current working in electrical designing of control and relay panel i want learn some substaion design then any book are available. pls mention name and authour

0 Answers  

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Make a list of materials and layout diagram for a 35hp motor, to be wired at 35meter away from the MDB in a chemical factory.

2 Answers   FEWA,

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