Answer / meenakshi

high , medium and low voltage switchgears as far as i know

Answer / santosh kumar

I think types of switchgears should be define as per two
things.1st Useing of di-electic i.e Air,Vacume,Oil etc.
2nd operational i.e Tharmal, magnatic etc.

Answer / @a.mustaq ahamed

switch gears

Answer / izhar hmed

Switch gears are classified according to the media used foe arc quenching ,so according to the media Air,Gas(sf6 etc),Oil and Vacuum .

what is the max. acceptable leakage current in 33kv bus bar

0 Answers   Tanesco,

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What is Harmonics how it is produced and what is the method to control the same

0 Answers   Siemens,

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In 110V DC supply,if a closed circuit gets open, How can we identify the voltage which is measured after the resistor(4KOhm) which is open with negative.it shows 55V +ve when measured, also the actual positive source is 55V +ve .Because there is no voltage drop in open circuit. How can we identify whether this is the voltage which is series with the resistor or the DC source direct +ve.

1 Answers   GE,

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what is the power factor

13 Answers   Heidelberge Cement,

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How to find Cable size? Caterpillar generator produce (Two generators) 127*2=254 amp at 11 kv . What would be the cable size (XLPE) to supply 256 amp at 11 kv? Air or surrounding Temperature is 32 degree C. Cable will go under ground at 2.5 feet depth. Group Rating Factors is 3 cables. Clearance between cables is 7 cm. Soil Temperature (Ambient) 28o C Soil Thermal Resistivity is 1.2 K.m/W I would like to use 3 separate single core instead of using 3 core cable. Some says I should use three separate single core 120RM cables. Some says 70RM .some says 95. I m totally confused. Is there ant specific rule to determine cable size? What would be the LT cable size to flow 500 Amp current? Ifte My e mail address is ifte13@yahoo.com Anyone please send me the answer to my e mail address, i will be very glad.

1 Answers  

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How is a 100 MVA transformer cooled?

9 Answers  

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What is burden of ct,explain very simple

2 Answers   KSEB,

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does a DG set has low fault level as compared to that of a transformer.If yes then why.

0 Answers  

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Why VCB is required and ACB is also require? what is the BDV of Trafo of 11/33 KV

1 Answers  

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In power transformer YnD0 Vector Group is possible or not? if possible, what will be the vector diagram and what are the conditions?

2 Answers  

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What is block diagram?

0 Answers  

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What are the advantages and disadvantages of open loop control system?

0 Answers  

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