Answer Posted / vijay patel

due to high voltage the produced electrical field cause break down the air and moist particle in to the ions and this efeect cause humming sound

why we use copper earthing for neutral while for body GI.

6138

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What are the specifications for getting approval of Substation?

1927

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Why 15Amp. MCB is suitable to carry load of 1.5Ton Ac please Explain?

2162

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Best way to measure the Soil resistance of rocky soil, three probe method and four probe method

1922

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what are the factors to be considered while design the breaker either HT or LT??

1889

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How to distinguish whether MCB is DC or AC looking at it physically

1967

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5- What is the task (function) of the excitation and isolation transformers in power plant? 6- What is the task (function) of LCI (A), LCI (B) and LCI (COS) in power plant? : LCI (A) and LCI(B) are load commutating inverter for generator turbine starting. , LCI (COS) is load commutating inverter change over switch

3808

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what is the difference between ups & inverter

7116

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how to compute kAIC?  with formulas...

4232

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How many types of protection relays are there based on the characteristic?

1075

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How select ELCB for 32amp. socket having quantity 12Nos. We have to do this wiring in PLANT. Please Also explain the incoming cable specification.

1869

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I Have 3 Phase 10 KW AC Alternator i found one phase weak, so what will be the reason & what action shouls i take to rectify the same.

2063

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I am an American living in Vietnam and I have recently gotten a refrigerator from Japan and it is rated for 100 vac, but the power here is 220 so I bought a voltage stabilizer it has a 1 kva output rating. Can you please tell me what the amperage is? I'm confused and without a working fridge.

1712

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what is meant by carrier aided trip protection in transmission line

3913

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why cable i burning without tripping. how can protect led street lights

1553

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