Answer Posted / pckundapur@gmail.com

Couple motor with a 3 phase gen

ii) A shunt motor supplied at 230V, runs at 900 rpm when the current is 30A. The resistance of the armature is 0.4 ohms. Calculate the resistance required in series with the armature to reduce the speed to 600 rpm, assuming that the armature current is then 20A. [12]

2434

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List the disadvantages of constant k filters?

1763

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PIU how does work?

2480

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what is the function of choke in the flourcent tube lights and why the colour is in white mostly in flourcent tube lights

1984

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If one lamp connects between two phases it will glow or not?

1129

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2. What are the parameters of EHT sub-station?

2406

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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?

1973

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I WANT YHE TECHNICAL AND ELECTRICAL SPECIFICATIONS OF 2x4MW 11KV 2x10MW 11KV 2x25MW 11KV 2x100MW 11KV HYDEL POWER PLANT i.e PROTECTION SYSTEM,MONITORING,CONTROL SYSTEM,GENERATION,SYNCHRONISATION,METERING PLEASE SEND THE DETAILS TO MY MAIL ID SPRAVEEN_222@YAHOO.CO.IN

2147

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-What should be minimum value of insulation resistance and maximum value of earth resistance at any electrical instillation and what is method of testing the same.

2149

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If a surge divertor is required to be protected by 32 amp C Curve Circuit breaker does this limit the amount of protection from surges that you will acheive

1838

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What is the Temperature to be set in Thermostat provided in Marshalling box of the Transformer / Motor.

3071

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What will be the current if the resistance total in a series circuit doubles?

1284

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what is upper impedance and lower impedance of a distance relay

2085

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Explain the fundamental difference between emf (electro motive force) and pd (potential difference) ?

1203

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difference between servo motor and synchronous motor

2381

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