If the Brsh of DC motor is shifted by 90 deg, then MNA will shift by --degree.

5 Answers   GATE,

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A group of machines (wind turbines) connected with 33KV feeder and each machines are having individual VCB. The 33KV feeder connected with 110KV/33KV substation. The 33KV feeder tripped by over current at Substation and fault recorded at Substation as OC-R&Y phase. Same time the group of machines VCB tripped by over voltage, the fault recorded voltage was above 66KV by numerical Under/Over voltage relay. While grid drop time, this much of voltage hike is possible?

1 Answers  

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which is batter in construction job,ELCB or RCCB?

7 Answers   HCC,

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why core losses and copper losses does not depend on power factor?

5 Answers  

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HOW TO CALCULATE THE CAPACITOR RANGE FOR LOAD FOR PF IMPROVEMENT? EXPLE:FOR 65 HP LOAD HOW TO CALCULATE CAPACITOR RANGE?

12 Answers   Al-Malik, All Star Electric, GEC, Reliance, Universal Industries,

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Why carbon brush used in dc motor also why its not used in ac motor?

2 Answers   RRB,

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In an alternator running with a balanced zero p.f. lagging load, phase differernc between the resultant armature flux and main field flux is always____? options is 180 degree....why?? explain.

1 Answers   BREB,

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ACCORDING TO IEC WHAT SHOULD BE THE MINIMUM HEIGHT OF G.I. STRUCTURE OF CT, PT, ISOLATOR, LA?

0 Answers  

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What is ONAN/ONAF1/ONAF2 for transformer cooling

5 Answers  

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How to calculate the slip ring induction motor rotor current and voltage.

1 Answers   Bhel,

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sir plz send some previous year questions of jspl.

0 Answers  

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what is meant by 2 within a star in a voltmeter dial?

0 Answers  

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