Answer / dayanand m panchal

There is two causes choose the ROB
1)Each colour has different wave length. 
2)According to the iso 1956 they are dined these colour.

Answer / deepak kumar singh

INDIAN STANDEOR ISO CHOOSEN COLORS RYB.

how much battery need for 2kv online ups for 2hr backup

3 Answers   Eaton, Emerson,

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IN A DY11 GROUP DISTRIBUTION TRANSFORMER WITH NEUTRAL EARTHED, WHAT WILL HAPPEN TO THE SYSTEM VOLTAGE & THE EQUIPMENTS IF EARTH GETS OPEN ON LOAD?

2 Answers  

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what is the rating of a power transformer?

1 Answers   ACME,

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What is stacking factor? What is its approximate value?

0 Answers  

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for 644KW load which MCCB should i use

6 Answers  

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How to find HT side and LT side(of a transformer),with the help of a voltmeter?

1 Answers   Odisha Power Generation Corporation OPGC,

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how a resistor resists to flow the current?how an inductor oppses the sudden change in current?how a capacitor opposes a DC voltage.

0 Answers   Hindustan Unilever Limited,

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What is the difference between MCB & MCCB, Where it can be used,

22 Answers   ACB Group, Badve, Bajaj Electricals, Hensel, Siemens, SR,

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In power point wiring,often,we use less size of earth wire compared to phase & neutral wire and we use big size pin in pug top. how is it justified? can we use small size cable for earthing?

3 Answers   HAL,

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What type of core material is used for metering C.T and protection C.T???

0 Answers   Bhel,

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how do you find making current and breaking current of the circuit breaker

1 Answers  

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how does the terminal voltage of transmission lines increase when a capacitor is connected???? This happens not only in transmission lines but also in all circuits. How??? When a capacitor is connected in a transmission line, capacitor also takes energy from the same supply. But how is it able to increase the terminal voltage??? Practically What sequence of events happen during increase in voltage???

0 Answers  

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