Answer / rehmat

the phase difference between the P & S of the transformer is 180 degree.

what are the types used for alternator earthing,what will happen if more than two alternator is working in parallel with each having own system earthing.is there any possibility for circulating current in between two system.

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is oil viscosity affect on motor current?

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what is the most permissible winding temp when we conducting a generator load test?(condition no load)

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what are the differant std sizes of cable trenches?

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what is the healthy specific gravity of lead acid battery used in DG sets ?

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What do you mean by ACB and VCB?

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what is use of lockout relay in ht voltage

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why we are not giving the zone 1 trip command to the master trip relay

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which motor is used in high mast ( street light) & give the hight of tower .

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what is diff. b/w of earth & neutral?. why we are separately using ?

3 Answers  

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