A 230V dc shunt wound motor has an armature resistance of 0,15Ω.When operating on no load at 650 rev/min the armature current is 6A . The motor takes a full load current of 85A. Calculate the full load speed if the field flux is (i) maintained constant (ii)reduced by 0,03

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How the value of KVAR of capacitor bank used in switchgears calculated??

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A Generator is in running condition and Rotor earth fault alarm is coming.How to check on line(i.e in running condition) whether there is actual earth fault in rotor or not.

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What are the different protection systems takes place on control panel board?

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R=*¶ l/a

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why is one voltage transformers (instead of three ) installed at the entrence of the incoming line in a substation.

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what is the EMF

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if neutral earthing is weak of a system then how can we improve it ? Technically explanation ??

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thyristor controlled APFC panel design parameter?

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What is the function of Governor in Hydro Power Station? What is the Function of Lightning Arrestor Voltage Transformer (LAVT)?

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What is milivolt dop test in Busducts? What is its significance & procedure to do the test?

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What is the classification of hydro projects based on installed capacity?

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