How I can Compare 120v/60Hz versus 220v/50Hz ? Please tell me both advantage and disadvantage ......

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Why ACB is used in LT why not in HT and why VCB is used in HT why not in LT

1 Answers   GE,

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Sate maximum power transfer theorem?

0 Answers  

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What are the two basic types of transformers?

0 Answers  

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what is power factor?

3 Answers  

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What is the difference between Ceiling Fan armature and Tablefan Armature or winding.

5 Answers   Pricol,

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what are the major & minor faults that occur in an inverter and in UPS ? And how to repair and resolve them ?

0 Answers  

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What is meant by harmonic distortion?

0 Answers  

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What is cable gland,why does use for?

5 Answers   ABB,

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Name of the relay of low lub oil presuure in DG sets

0 Answers   Lineage, Sterling,

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i have a 4 Mva transformer 34.5 kv / 480-277 v and i used 2 parallel 3200 amp bus duct for the secondary feeder using 3 ply of bus bar ( 3/8" x 5" ) as a common where the flexible link terminated and 6300 amps breaker for the main, the lower bus duct reaches 70 degrees and the upper bus duct reaches 55 degrees when i used thermal scanner. why the temperature is not balance when the load reaches 3600 amps.

0 Answers   SCM,

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why the pf of semiconductor device is improved the electrical devices

0 Answers  

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