what is the difference between metalhalide and mercury vapour lamp

1 Answers  

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low voltage grounding is done by?? 1)solidly gnd 2)ressistance 3)reactance

1 Answers  

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What is the effect if power factor is above 1 or unity.

15 Answers   NTS,

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in 33kv/11kv stepdown t/f why should we use Star point

2 Answers  

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why generally transformer are in star to delta

3 Answers  

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Tesla is the unit of which parameter?

4 Answers   Ecil,

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what is different between neutral and earth?

4 Answers  

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- two pumps must work with them at the same time but if the first pump start the second pump  must delayed for some time to start  also , with motor rated power = 90 KW and rated voltage = 380 V and rated power factor = 0.85 lag please draw the power and control circuit for it and determine all circuit components parameters that you use it

0 Answers  

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WHAT HAPPEN WHEN A DROP OF WATER MIXED UP WITH TRANSFORMER OIL ?

4 Answers  

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Is it posible to instal one more SMDB from the existing SMDB and is it practical.

0 Answers   CGI,

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What is flow meter?

2 Answers  

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What is the make of breakers, transformers, generators? What are their capacities and ratings?

4 Answers   Bharat Bijlee, GHPPL, Tata Motors,

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