Answer / naveen

SF6 is like VCB except arcing medium is Sulfer hexa fluride gas which is very good non conductive properties & reduces the arc flash it has all the safty relay I.e- over current.earth fault.sensitive earth fault transformer safty relays master trip relay tcs relay.

What are the no-load losses for the 11000/415V transformer with the following rated capacity? 1.1500 kVA 2. 2000 kVA 3. 2500 kVA 4. 3000 kVA

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How to design power source say 5KW i/p :415v 3 ph, o/p 5KW constant, variable currnt and variable volatge 10-230v,

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HOW MUCH KVA DG SET REQUIRED for charging 12v 4000 ah battery?

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in breather of transformer how sillicon gel absorb the moisture?wat happen when the moisture in that oil?

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HOW DO A DISTANCE RELAY SENSES THE FAULTY ZONE.

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Hi, I'm running plastic reprocessing company where all motors are running only in delta. Due to that when I use start my 30 hp motor my transformer gets fuse. Where it happens two times a day. I gt a suggestion from a person about Automatic Power Factor Controller APFC. Is it useful for my problem??? Or is der any other way for solving this problem?? Upgrading the transformer is difficult. Pls give Me ur suggestion. Waiting for ur reply.

2 Answers   Shree Lingaa Polymer,

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How to take the Vector Group Test in Transformer? What is the purpose of doing Vector Group Test?

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Y phase's (RYB) r only 3,not 4 or 5?plz answered in breif?

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in non technical way how can u define POWER FACTOR??

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I'm looking for a mnaual set for a Teradyne J750. Softcopy would be preferred but I'll take what I can get.

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what is the maximum current rating in india for home?

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what is the series parallel connection of capacitors? and how can we use these application in three phase motors for controlling torque?

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