To prove the capacity of a 10MVA transforemr with 6.5% impedance by a short circuit test how much power is needed to inject an impedance voltage if we have to arrive for its rated current?

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I have a drawing of a wound rotor induction motor for a crane. This crane motor has 5 forward speeds & 5 reverse speed implemented of course with different amount of resistance for each speed setting selected. What has got me scratching around is the fact that 8 of the 10 speed selections switch in uneven (unbalanced) amounts of resistances on each of the 3 connections to the motor's rotor.Can this be possible? I would have assumed this would produce unbalanced rotor currents and therefore vibration in the motor. I would greatly appreciate anyone's comments on this. Many thanks, Confused.

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why ahould you show client/engineer activities clearly on the project plan

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how to difference between the HT&LT cables

1 Answers   L&T,

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Why earthing is required for diesel tank?

4 Answers   Greaves,

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what is amf panel & how it is working

6 Answers   ATS,

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What is the Impedance, inductive reactance calculations

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hello! sir i did three year of diploma in electrical (2007- 2010) and now i m a student of electrical engineering. sir can i apply for germany visa for study and part tome work over there?

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what type of insulation is used for over head lines?

4 Answers   NTPC, WS,

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WHY EARTHING NOT NEEDED IN BATTERY IN SUBSTATION

0 Answers  

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Is your generator is automated or manual if so do you know the circuits?

7 Answers   RRB,

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In a panel 2500A ACB is the incoming breaker then what is the size of the bus bar?

1 Answers  

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