Answer Posted / nur.asidik

you can refer to Micom P24x or sepam M4x

What is meant by reverse polarity and how it can be fixed?

1271

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Can an inverter be used as a converter? How?

1948

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Dear sir, In our plant have Station Transformer having capacity,i want to know, why LV side 40 - 40MVA is given? & how we can get 6.3 KV supply from tertiary(i.e. Open delta connection), Vector Group YNyn0 - yn0 +d MVA Rating 80MVA / 40 - 40MVA + 26.7MVA Voltage rating 420 (Tap range +6,to -10)81.25% /11.5KV - 11.5KV +6.3KV

2175

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Explain forward resistance, static resistance and dynamic resistance of a pn junction diode.

1209

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What happen to the transformer if the OLTC frequently used for lower and raise occured 50times daily?

2054

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How will you utilise electrical power? You can start from the generating station.

1919

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Why use the vcb at high transmission system ? Why can’t use acb?

1329

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The simple way of finding the leakage quantity and % in compressed air distribution system

1681

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what & how to check the lightning arrester

1925

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In case of HV test on medium voltage cables, BS is asking for 4 U0 where as IEC is asking for 3.5 U0. Can any one advise me how this 3.5 times or 4 times U0 is derived?

1700

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if an insulated power and control cables of a running gas diesel gensets laid direct in an open trench i.e, trench bed is not rcc of a power house in which rain water, spillage water alwas exists and all power control cables remains submerged even when gas gensets of 480 kw each runningin on load. These power &control cables runs from power house to switchgear room through these trenches in which water remains most of the time. pl explain its merit & de-merit

1882

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Draw the vector diagramme for Asynchronous Induction Generator at noload,half load and fullload.

1995

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induction 3 phase motor terminal connection

2677

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what are the difference between AC lamp and DC lamp

2102

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Define damping ratio.

1253

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