Answer / varudharajan

dear friends,
normally the vfd output depend upon the triggering of
igbt.so the output varied from from frequency level.

How much energy save vfd if motor run on 50 Hz (full speed)

3 Answers   Reliance,

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how is working d.c amps meter?how to connect the dc ammeter inthe circuite?

2 Answers  

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Why transformer called by KVA?

8 Answers   Reliance,

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In a synchronous motor armature current flows due to revolving flux which in turn rotates the load,but in no load condition armature current is zero hence thr is no revolving flux then how motor rotates?

9 Answers  

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how to select diiferent power transformers of same capacity on no load loss and full load loss by economical point of view.?

0 Answers  

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How to select the rating of a CT used for REF protection. The rating can be of equal rating of Phase current or neutral current rating

2 Answers   UltraTech,

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What is meant by directional power and reverse power relay ?

1 Answers   HAL,

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why the voltage transmission is always in a multiple of 11? e.g. 110 V, 220 V, 33 kVA, 11 kVA

16 Answers   IAF, MahaGenco,

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how does high earth to neutral voltage affect electronic equipment?

0 Answers  

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why the measure taken in multiplication factor of 11for voltage like.. 110V,220V,440V,1.1KV,6.6KV,11KV,33KV,66KV,110KV,132KV,220KV

1 Answers   Vijai Electricals,

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In Ferantti Effect Receiving end voltage is greater than sending end voltage but how it is possible. I know its all about charging current but give me some more detailed explaination?

3 Answers  

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the max. power will be transferred if …… a) sending end vol. is high b) receiving end v is high c)…….. d) corona loss is least

2 Answers   Engineers India Limited,

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