Answer Posted / ramjeet singh

Yes; at least once in a year it should be filtered and
tested as per IS 1866-2000 to withstand not only BDV,
moisture but all the 9 test parameters; as at least we
should know what has happened in terms of oil
characteristics within a year.

why the value of k is more in shell typr transformers?

2007

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If the feeder rating is 7.5 kw or 10 HP star-delta feeder, MCCB is taken as 63 a, contactors-32 a, how much will be the OLR rating or which range OLR should be considered when we concern about type-2 coordination?

2316

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In synchronous motor, how the field current is related to armature current..i know its inversely proportional..but concept wise...i was nt clear....pls help me...

2054

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According to underground cables a) stress b/w sheath & conductor is high b) inrush of core & conductor

1979

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Inverter. converter. Ups.MCB.solar.alternators. motors.

2002

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how to make an earthing certificate

2250

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What is the importance of earthing?

1120

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explain all the classes with example

1971

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HOE WE CAN IMPROOVE BY USE OF CAPACITOR

1972

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What does ampere turns shows?

1149

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what the function breaker failure scheme, how is it operated

1918

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Tell me the reason of connecting domestic t/f primary in star or delta,and also secondary side.

1985

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hi,every one, i have to write the search paper on "performance policy optimization" of NGN (next generation networks). i need the material on this topic. can any body help me. please tell me any useful site where the good material is available and name of any reference book. it should be a great help for me.

1930

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how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?

2274

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which network topology offers the greatest level of tolerance?

2164

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