What are differences between Conventional & Addressable type smoke detectors?

1 Answers  

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We have one Energy meter for Measuring the voltage,current,power,energy(KWH,KVARH,KVAH) & power factor.The problem is that the meter does not show whether the PF is lagging or leading.So i want to know that is there any way or calculation to find out that whether the PF sign (lagging or leading) depending upon the above mentioned parameters?

4 Answers  

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How to do stting of vl250 siemens MCCB

0 Answers   Qatar Steel,

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how much load should be given on 5 mva transformer

7 Answers   NTPC, OHPC, Power Grid,

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single phase brower fan with control starter. *problem is when operate it.It will be trip.

1 Answers  

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what are the different type of transformers available in markets???

6 Answers   Atomic Energy Commission,

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What is difference between metal clad & metal enclosed switchgear?

2 Answers  

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we touch other end of the tester supply, why do not get shock?

7 Answers   L&T,

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Why reactors use before incoming of ac vvfd drive?

0 Answers  

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how much current take 16sq mm Cable

2 Answers  

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why the neutral point of star connnection oscillates?

3 Answers   Avalon,

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What can be a rating of a transformer(KVA) if the load is about 1000KW?illustrate by showing formula?

2 Answers  

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