Answer / k.prakashchandra

If other 2 phases are OK ,it may be due to open circuit in
that phase.If other 2 phases show 50% ,it may be due to one
phase missing in the primary of substation power transformer

Answer / ambai algates

if 1 phase open the unbalance current is flow through
neutral , so its exit the setting bkr trip .if there no
load you got 230v only in phase to open phase

Answer / akash`

check your high tension line d.o.if three d.o. is ok then
substation problem not coming one phase means single phasing
problem call it

why trasformer rated in kva why should have to maintain pf in our site 0.9

3 Answers   Dalkia,

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Is the inductance parameter of transmission line affected by taking the earth into consideration?is the same true for capacitance? Justify the answer.

1 Answers  

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WHICH TYPE OF TRANSFORMER IS USED IN POWER TRANSMISSION BASED ON TRANSFORMER CONNECTION ON PRIMARY AND SECONDARY SIDE

3 Answers  

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total numbers of earthing of a transformer

1 Answers  

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How Cable Size is determined for a Particular load.

4 Answers  

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why the Different manufacture's rating of Gas genset are different? i.e : cummins genset rating is in KVA .( 625kv). While GE- Jenbacher make genset have rating in Kw. (625 kw)

1 Answers   L&T,

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Why current transformer is earthed??

2 Answers  

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Can anyone tell me what will happen if AC & DC supply get mixed???

9 Answers  

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what is the effect of power factor in electrical circuit ? if we mainten power factor near about unity (0.999) our energy consumption Units increase or decrease?

11 Answers   Piramal Healthcare,

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Why underground cables are used to connect transformers?In addition how are they again connected to lines after step up or step down?

1 Answers  

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What is power focter ?

6 Answers  

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How to calculate per unit impedance of transformer?

0 Answers  

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