why voltage rating not mention at HPSV or HPMV lamps?

2 Answers   OPS,

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2. A current i=(10+10 sin t)amperes is passed through MI type ammeter. its reading will be.........

0 Answers   SSC,

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what is the electricity

3 Answers  

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what is priming pump?why it is used ?

2 Answers  

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Why electrical power generation and transmission done in 3 phase system not more than 3 phase ?

0 Answers  

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How to select the cable and voltage drop in circuit?

0 Answers   DEWA,

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what happens when d cexcitation given to alternator is removed while it is running or what happens when dc excitation is failed in alternator while running?

10 Answers  

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in our transmisison sub station why we step down firstly 132kv\33kv then 33kv to 11kv. can we direct step down 132kv to 11kv.

2 Answers  

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WHTA IS LIMT OF LEAKGE CURRENT OF 11 KV 1 CORE 1000SQ.MM. XLPE CABLE.LOAD ON CABLE IS AROUND 600AMP .LENGTH 500 MTRS.

0 Answers   L&T,

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What will happen if the field of synchronous generator is removed when it is in operation with no load?

3 Answers   HJ, UPPCL,

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which circuit breaker enclosure is best for maintenance guy? 16 bolt & 20 bolt squre or 16,20 bolt hinge

2 Answers  

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For a 6.6kV Motor it is recommended to do megger test with 500 V d.c and not more than 5kV d.c but the Hi voltage withstand test should be performed by 12kV AC. Why the dc voltage test should be limited but AC voltage withstand test could be with such a high voltage?

0 Answers   Hormozgan Steel,

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