can transformer develop three phase poer from a single phase source?

2 Answers  

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presently I am working in private sector.In powergrid interview recruiter asked me why you join this organization.

0 Answers   Power Grid,

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i need to now what will be the cable size to the following load, transformer to distribution panel distance 110m, load 1000kw, voltage 400v, pf 0.85, permissible voltage drop 2.0%, overhead line, atmospheric temperature 35 degree c.

0 Answers   Bay Fishing Corporation,

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Hello sir, pls send me hpcl technical test papers .i am. Appearing for the exam.

0 Answers   HPCL,

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Difference between low impedance and high impedance Restricted Earth Fault

0 Answers  

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Why we use mho Relay in long transmission line?

0 Answers  

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what is the sludge current

0 Answers  

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what is the use of Auto re-closer?

0 Answers  

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what will happen when reverse reactive power occurs in alternators?

3 Answers   Reliance,

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What is non-minimum phase transfer function?

0 Answers  

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what is the proximity & ferranti effects can you explain to me

1 Answers   APTransco,

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My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I -    is the value of AC fault current. t -    is the operating time of disconnecting device in seconds. K –  is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.

0 Answers   Premier,

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