Why is negative feedback invariably preferred in closed loop system?

0 Answers  

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How to calulate Voltage Drop for perticular lentgh of busbar (Cu/ Al)?

1 Answers  

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Explain what are inter-poles and why they are required in a dc machine.

0 Answers  

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why the neutral of power transformer is always earthed?

1 Answers  

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Which motor has high Starting Torque and Staring current DC motor, Induction motor or Synchronous motor?

5 Answers   BSL, Elite, TTA,

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What are the main problems in distribution? I have to do an assignment so which problem should I choose? Like power factor problem etc.

4 Answers  

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Why we are going for converter transformers for DC drives application instead of distribution transformer?

0 Answers  

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what is FS cable?? Difference between FS and FRLS??

1 Answers   Multivista Global,

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why ground clearance of EHV line is more than HV line??

2 Answers  

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What type of DC motor would you see for a lift?

0 Answers   Ericsson,

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In a synchronous machine if the field axis is ahead of the armature field axis then the machine is ?

1 Answers  

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A 100 kVA , 400 v/250 kv testing transformer has 8% leakage reactance and resistance on 100 KVA base . A cable has to be tested at 500 kv using the above transformer as a resonant transformer at 50 hz . if the charging current of the cable at 500 kv is 0.4 A find the series inductance required . Assume 2% resistance for the inductor to be used and the connecting leads . Neglect dielectric loss of hte cable . what will be the input voltage to the transformer ?

0 Answers   L&T,

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