in india why 50 hz and 220 volt taken as standard rating for equipments whereas in US 100hz and 110v is consided as standard rating.is this method save power.

5 Answers   Wipro,

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Load transfer in 11kv double busbar switchgear - operation.

0 Answers   KSEB, L&T, Siemens,

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what is the different between bus section and bus coupler

2 Answers  

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Generally In transformer Tap Changer on HT side, but I have seen in 66KV side in 220/66 KV, 100 MVA, Areva make transformer. Why ?

7 Answers  

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WHY CBCT USE ONLY IN Y PHASE NOT OTHER PHASES

0 Answers  

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How to calculate multiplication factor in kva example 500kva ans pls ?

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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voltage at generation stage is usually- ? a.11kv b.33kv c.66kv d.220kv

12 Answers  

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Why should The rating of 11 kV DO Fuse is in mulyiple of hundred(200 Amp. 40 Amp, etc) Ampere wheareses the its fuse elemnt has rating in just few Amp (< 12 Amp)? ( Is it jusy beacuse of factor of safty).

1 Answers  

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what is L.T?specify the range?

7 Answers  

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Define piezo-electric effect?

0 Answers  

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whatis the commertial spec. of distribution boards ?

0 Answers   Bosch,

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