Answer Posted / ajmal

1.thermal over load relay used in star delta starter
application
2. according to motor kw we need to provide thermal over
load relay, suppose suppose the motor ampere exceed from
normal one the over load will trip, it must be matching
with motor kw

I have a CT meter with ratio 60/5. The meter reading of previous month was 3290.49 and that of current month was 3797.26. How many chargeable units as per normal meter should be my reading.

1459

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How wire size can define in electrical wiring? What is the ratio?

2350

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What are the types of transformers according to the arrangement of iron cores?

1179

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IF 8255 CONTROL WORD IS 94H,Tell the chip port work mode ?

2617

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If I have 3 essential main switch board and 3 incoming electricity ,but only 1 genset running is that possible.

1686

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what is the relation between size of the anteena and wavelenghth of radiated wave

2239

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how can i get an electrical c-certificate?

2293

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what is the internal working of star delta starter

2163

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The specific heats of the gas at constant pressure and constant volume are respectively 1.0 kJ/kg K and 0.72 kJ/kg K; the value of R for the gas is

1189

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Do you need any help with FEWA Electrical Supervisor exams?

1058

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In EB metering we face problem kva jump even in no load condition.can any one help to control this

1889

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We have two APFC panels in same station. I need how to connect CT in two APFC panels.can we take one CT in series connection or two separate CTs.

1583

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In Electrical 'Single Line Diagram' cable nomenclature shows "2 X 1C X 630sq.mm to be provided for one incomer. The question is how many cable to be proved for one Incomer.

1819

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A power transformer 4MVA/11KV/0.415Kv has been out of use in 12years. what maintenance actions/test need to be carried out before energizing.

1368

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what is a speed of rotor when we give supply to stator of 50hz and as well as rotor of 60hz of an induction motor?????

1686

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