How CFL &T5 tube light glows?

0 Answers   HAL,

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In case of 3Phase Supply, Voltage R-Earth/Neutral - 220 Y-Earth/Neutral - 220 Z-Earth/Neutral - 220 Total is -> 660Volts Then Why it is said that 3Phase supply is 440

6 Answers   Hindustan Unilever Limited,

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For overhead protection we use which transformer?

0 Answers  

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what happen if drive input fail momentry at 48.5 HZ frequency?

0 Answers  

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How to calcualte 1unit of current consumption?

3 Answers   Bhushan Power Steel, ITC Infotech,

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what is the difference between bus-coupler and bus-riser

2 Answers  

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Why -48V dc power supply using in telecom field?

7 Answers   APC, Cisco,

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What are the effects of adding a zero to a system?

0 Answers  

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When we use 3 terminal resistor?

0 Answers  

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What is surger vector in 33Kv transmission feeder? We have AC power generator of 8MW which is paralleled with 33Kv EB grid. Some times our HT breaker gets trip off due to surge vector problem. How to over come it? Is there any device to observe the surge and avoid tripping?

3 Answers  

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There is air in a room . the top and bottom of the room are at constant temp. T1 and T2. DRAW THE temp profiles if a. T1 greater than T2 b. T1 less than T2

0 Answers  

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what is ground fault in ACB?

0 Answers  

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