Answer Posted / indoriaishish

415 volt

what is the pre charge circuit,what will be work which function it will be use plz tell me

1865

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In a large office how do we calculate required number of light fittings, assuming fittings are 4x18W or 2x36W fluorescent fitting ?

1819

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What is the formula for calculating impedance of transformers connected parallel at fault level 50KA?

2021

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how to test power transformer.YNd11

1515

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how flow current in 220 kv line to line

1921

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WHAT IS IM (INDEX OF MOUNTING )IN MOTORS

1987

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How many types are using in 220kv/400 kv swith yard

2140

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what is transient stability analysis means?

2083

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The electrical energy required to raise the tempreture of a given amount water is 200 kwh. If the heat losses are 20%, the energy required is?

1954

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WHY THE COLOR OF OUTDOOR TRANSFORMER IS BLUE ONLY???

2058

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Why do you have to use Protecion relay with the function MTB ( Mechanical Trip Button ) for electrical system.

2142

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need to make a report. Need to choose a 3phase induction motor. Load conditions motor will operate in : Maximum Load: 30 Kw Speed: 2950 rpm Ambient temp: 20 cent Supply voltage: 440V Frequency: 50Hz need to look for the safety factor when choosing the motor, went through catalouge found a few, but dont know how to choose the safety factor allowing an extra load something above 30 KW to avoid any harm.

1776

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How can we connect additional batteries to three phase ups? What are parameters we have to check when connecting?

2017

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What are the basic elements used for modeling mechanical rotational system?

1059

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do we use links in a dc circuit?if so what s its use in it?

1971

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