Answer / manoj tyagi

DRF=1-efficency

Answer / kumar.latif

it is the ratio of total voltage capacity of a scr string
to sum of capacities of individual scrs.

If V is total capacity and v is individual thyristor
capacity then derating factor=V/(nv) where n is the no of
thyristors

Answer / saroj kumar

String Efficiency=Actual Voltage or Current/n* Individual Voltage or current.

Derating Factor= 1- String Efficiency
=1-V/n*v

Answer / nhatanael

how to determine number of thyristors in series. in hvdc valve converter.
to determine derating factor you first need to know number of thyristors connected in series...

Is it good to short Neutral and Ground in the PLC or DCS main Power supply. Pls give YES or NO with reasons...? Simarpreet

0 Answers   Bindal Papers,

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what is the simple meaning of harmonics?

4 Answers  

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why scott connection is done why not two phases are directly picked at the output of 3 phase transformer??

1 Answers  

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What is the value of system voltage?

2 Answers   Bhel,

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What is shunt voltage and u v voltage witch one best

0 Answers   SEL,

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How do you select the pickup value of the relay?

0 Answers  

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The exciting current of a transformer is non sinusoidal. why?

2 Answers  

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what is effect of unbalaced load -- say R 15A, Y 25A, B 10A

4 Answers   TransWorks,

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define one ampere?

2 Answers  

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what is automatic voltage regulator and it is used?

2 Answers   HAL,

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Dear Sir/Madam, I have one questions we have three steam turbines and one Gas turbine and our industry linked with the public network, we have protection system one of the protection is reverse power we can export just four MW only i would like to ask about how to calculate the reverse power. Thank you in advance best regards

0 Answers  

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What is meant by power factor correction?

5 Answers   Aspire,

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