Answer / sangeetha.np

it is the distance between two discs of porcelin
insulators... there are some standard distance according to
the KV rating of the insulators.. like 25mm per KV..

Answer / alaaeddine

The shortest distance between metal ware at the two ends of
the insulator,When following contours of the
insulator,excluding intermediate metal fittings.

on a three-winding transformer relationship delta-delta-star, on third winding why the relationship is a star? what are the advantages and disadvantages? Thank you and please help

0 Answers  

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we have two generators different capacity on 15 MW and other 6MW at 11 KV , 15 MW gen. bus short level current 40KA,and 6MW short level current 25KA,, length of cable 100MTR between 6 MW from 15MW gen. for bus coupling . kindly tell any one can we use both NGR OR one NGR from any GEN. BOTH NGR has diff. rating. Tariq pakistan

0 Answers   RYK Mills,

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Impedance relay is directional relay or non directional relay?

2 Answers   KSEB, NTDC,

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why in 3.5 core means 3 core for phase and .5 for neutral?

1 Answers   Sodexo,

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The neutral to earth connection in my industry is showing a zero reading (shorted). I have a machine which has to be installed where neutral to earth is not shorted and shows a leak voltage <3 Volts. Please suggest me how it is possible.

6 Answers  

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I have 200 KVA Isolation Transformer for UPS input side. & ups was having 48% load, suddenly got short what will be the reason.

1 Answers   Mukand,

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why gravels is used in transformer yard?

6 Answers  

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Why the CT Secondary is rated as 5A generally?

2 Answers  

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dear all, How do i increase UPS (1000VA)backup time ? i have connected 2 12v wold you please 120 aH battery externally. ups charge the lead acid battery only 12.7 volt. backup time only 10.00 minuts and gose off. can any one of you help me?

1 Answers   Technomax, ups,

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What is working principle of washing machine?

9 Answers   IBPA, Samsung,

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what is breathing?

0 Answers   PWD,

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Why the motor take high starting current for long time(10- 15 sec) which is connected to Blower as compaire with a motor which is connected with pump with same rating?

2 Answers  

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