Which type of control system is expensive — closed loop or open loop?

1 Answers   GE,

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I have a transformer 3phase 11kv/410v and its name plate missing. now how can I judge its rated kva?

2 Answers   Coca Cola,

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please let me know , we have installed two separate motor for fire fighting system 1) 60 hp and 2) 15 hp the load is 74 AMPS and 20 AMPS then tell me the main power cable in Aluminum will be what thickness , the length is 225 mt from the main utility to fire pump house

1 Answers  

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we all know that corona is nothing but ionization of air around the conductor and there by allowing current to pass through ionized air.but we are not getting any short circuit in between the respective phases though the air turned as a conductive media between them??

1 Answers   Siemens,

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How to calculate multiplication factor in kva example 500kva ans pls ?

0 Answers  

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What is shutdown of electrical sub station?

0 Answers   UCEP Bangladesh,

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what is interference

1 Answers   L&T,

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what will happen ac motor give to dc supply

9 Answers   Areva, College School Exams Tests,

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what is recovery voltage & transient voltage ?

1 Answers   Bhel,

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is it possible to run the any motor when winding grounded? how?

1 Answers  

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What is minimum permicible value of leackage current for LT Panle when applying voltage up to 3 KV for 5 Minuits?

0 Answers   BFL,

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WHAT IS NORMAL VECTOR GROUP USED FOR DESIGNING OF TRANSFORMERS??

11 Answers  

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