what is difference b/w CFL and Ordinary lamps? which one is useful for power saving?

5 Answers  

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What do you understand by oldham's coupling ?

0 Answers   Godrej,

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what is the minimum clearance between a 11KV 150KVAR capacitor cell and series reactor.can a series reactor can be mounted in the same structure of the capacitor cells structure

0 Answers   APTransco,

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A 3 phase motor operating off 415V system is developing 20Kw at an efficiency of 0.77 and power factor of 0.73. determine:- a)the line current. b)the phase current if winding are delta connected. c)the phase voltage if winding are star connected.

1 Answers  

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what is gapless metal oxide techniques?

1 Answers  

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if 2500 KVA TRANSFORMER CAPACITY.33KV INCOMING HOW ARE AMPEAR PRIMERY SAID

3 Answers   Cipla,

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what will happen if we pass a dc current through a ac bulb of 60 watt.The dc current is half ac one

4 Answers  

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a 120 60 watt incandescent lamp has to be operated from 50 c/sec 1 phase ac supply. in order to do this a circuit element has to be connect in series with the lamp. which one of the following sries element is preferable.

1 Answers   SSC,

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In Power transformer oil temperature or winding temperature will be high

3 Answers  

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what is meant by skin effect ?

3 Answers  

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what are the protection equipments used betbeen HT line and transformer in a power plant

4 Answers  

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In power generator sets, when they are coverted from 50hz to 60hz, the kva rating after conversion increases. For example, the manufacturer of a perkins 200kva @ 50Hz generator set has mentioned it to become 220kva after converstion to 60hz. What is the relation between the frequency & the KVA rating. Any formula please.

3 Answers  

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