Answer Posted / parth patel

when we install any new transformer we have only load
current as known quantity accordingly the secondary voltage
is selected. but we dont know which type of load will be
connected on the secondary side it may be inductive ,
capacitive , resistive or combination of them.So as we dont
know about the load we dont know power factor of the load
thats why the ratings of transformer is in kva and not in
kw.

when measure the core loss of three phase distribution transformer or three phase reactor loss, one phase shown negative watt loss. why??

1928

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What happens if we connect a single phase energy meter in reverse polarity.

2295

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What is resistance reading of earth copper rod with grid and without grid?

1092

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what a function diesel generetaor turbo charger & turbo charger is more heated explain reason ?

2203

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What must be the distance between the Earth pit which are grounded from two different sources. Example: Distance between the earth pit for LV Panel-1 & 2

2022

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if any house we instaled a 1.5 ton ac and its phase cable of wiring is installed but netrual cable of wiring not instaed. my question is that is neutual of house(for other wiring is capable for ac load or a sepeart neutrual wiring required

2422

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Sir 33kva 2 transformer load 900 amp calc 1800 amp mana jayega

1772

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What are the insulation standerds for eg H clase and how many insulation standerds are there and its standerds??????

1902

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If 100 KAV USP dedicated earth got disconnect / Cut. What will happen at load.

1896

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Difference between RCCB, RCBO and ELMCB.

4021

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acb(AIR CIRCUIT BREAKER)NOT CHARGING AUTO

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What is difference and reason b/w -48V BTS system and 24 V BTS system. Plzzzzzzzzz tel me.

2165

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plz tel me syllabus and exam date 4 jr executive engg (electrical)

1924

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testing of Vector Group – YNaoD II

2866

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what is the min and max ohmic resistance for the earthing rod installed for lighting poles for street light network

3684

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