explain why reduced voltage starters are required for large tree phase inudction motor

2 Answers  

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iii) A shunt motor runs at 70 rad/sec from a 460V supply and takes in an armature current of 100A. Resistors of 2.52 ohms and 1.64 ohms are connected in series with the armature and in parallel with the armature respectively. The field excitation remains direct from the 460V supply but the generated torque is halved. Determine the new running speed. Neglect brush voltage drop. The armature resistance is 0.4 ohms. [15]

1 Answers  

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How can get C license i am complete I.T.I electrician trade and 10 years experiance this field and i complete the dee from ksou by distance mode of this year.ksou means karnataka south open university but i want Tnelb license

2 Answers   C License,

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What is the name of powder which is used in inner side of a cable? and purpose?

1 Answers  

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What types domain of laplace transforms? What behavior can laplace transform predict how the system work?

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primary of transformer connected to Dc supply in series with switch, and secondary connected on ammeter, what happens when swith On and OFF. (or) if continuously On and OFF

9 Answers  

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what are the differance between neutral and earthing?

3 Answers  

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if name plate detals of a motor or any other is missing then how to find it

1 Answers  

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how to calculate the ct burden?

1 Answers   Hydropower,

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how to calculate the speed of a induction motor without using tacho meter?

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What is slip in an induction motor?

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what objective books are good for preparing for PSU's?

3 Answers   NTPC,

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