Answer / pradyumna chandra panda

R Y B are prime colour of every colour, that's why we use these colour for three phase supply. in foreign country they now use black, gray, white for three phase supply.

Answer / guest

ITS IS THE BASE COLOUR FOR ALL COLOUR

Answer / digvijay barge

Phase shift between three phase is 120
RY 120
YB 120
BR 120

Answer / kunal lakhani

R stands for red ,Y for yellow , B for blue which are the
three phases,R is for live wire

what is feed back and what are feed back amplifiers?

0 Answers  

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A 100 kVA , 400 v/250 kv testing transformer has 8% leakage reactance and resistance on 100 KVA base . A cable has to be tested at 500 kv using the above transformer as a resonant transformer at 50 hz . if the charging current of the cable at 500 kv is 0.4 A find the series inductance required . Assume 2% resistance for the inductor to be used and the connecting leads . Neglect dielectric loss of hte cable . what will be the input voltage to the transformer ?

0 Answers   L&T,

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how to convert lv line to hv line and viseversa, any losses will occur during this process

0 Answers   Jindal,

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What it the purpose of parallel phasing transfomers??

4 Answers   ABB, Reliance,

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What is switching over voltage?

1 Answers   MEIL,

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can we use metering current transformer as protection current transformer if not why? & if yes why?

5 Answers   Wartsila,

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In winter we seem lightly an electric shock when we touch to doors(sometime)

13 Answers   Infosys, REL,

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what r the types of transmission line?

28 Answers   DIET, RRB, WAPDA Water and Power Development Authority,

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What is difference between miniture circuit breaker and module case circuit breaker up to 63Amp.

7 Answers   MSPL,

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Can we convert off load tap changer transformer to on load tap changer transformer

2 Answers  

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What is mean by vector group? For what purposes we doing vector group test in transformers?

2 Answers  

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Tesla is the unit of which parameter?

4 Answers   Ecil,

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