Why SF6,VCB,Oil Ckt Breakers are use in HT Side need brief information ?

5 Answers   Shell,

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i want to know how to calculate the battery capacity based on the UPS . ex i want to run have one kva UPS Which should run 10 hours ? in that case how many batteries to be installed and what will be the AH Value .

2 Answers  

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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

0 Answers  

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why dc measurements are noted in mc whereas it is mi in ac measurements?

1 Answers  

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why armature is placed in stator but not in rotor in synchronous generator ?

2 Answers   Student,

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what is the order of mgnetiation current in a current transformer of 1000A/1A ratio?

2 Answers   Power Grid,

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what is the response time of relays when a FAULT OCCURS IN A POWER SYSTEM?

2 Answers  

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State The Difference Between Generator And Alternator?

0 Answers   ABB,

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how to calculate bus-bar sizes? (copper bus-bars)

2 Answers  

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why should a transformer be never connected to dc supply

5 Answers  

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High speed earth switch operation with diagram

0 Answers   KSEB, L&T, Sanden Vikas, Siemens,

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what is the principal of ceiling fan and how it will rotates? what is the magnetic momentum produces inside the fan?

1 Answers  

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