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In which type of AC to DC converter efficiency is higher :

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In which type of AC to DC converter efficiency is higher : solid state rectifier

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1 answer 15 views

A single-phase fully controlled thyristor bridge ac-dc converter is operating at a firing angle of 25o and an overlap angle of 10o with constant dc output current of 20 A. The fundamental power factor (displacement factor) at input ac mains is  (A) 0.78 (B) 0.827 (C) 0.866 (D) 0.9

asked May 18, 2018 in Power electronics converters by Shimroz123
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asked Apr 9, 2018 in Electrical Engineering by Shimroz123
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asked Jun 4, 2018 in Electrical Machine by Shimroz123
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A single phase fully controlled thyristor bridge ac -dc converter is operating at a firing angle of 25 degree and an overlap angle 10 degree with constant dc output current of 20A. The fundamental power factor (displacement factor) at input ac mains is : (A) 0.78 (B) 0.827 (C) 0.866 (0) 0.9

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asked Apr 12, 2018 in Electrical Engineering by Shimroz123
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asked May 18, 2018 in Power electronics converters by Shimroz123
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1 answer 20 views

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asked May 20, 2018 in Power electronics converters by Shimroz123
1 answer 6 views

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1 answer 17 views

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1 answer 21 views

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1 answer 16 views

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asked May 29, 2018 in Electrical Engineering by Shimroz123
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Consider the following statements with regard to induction type wattmeter :  1. Can be used on both ac and dc systems.  2. Power consumption is relatively low.  3. It is accurate only at stated frequency and temperature.  Which of the above statements is/are correct ?  (a) 1 only (b) 2 only (c) 3 only (d) 1, 2 and 3

asked Apr 25, 2018 in Electrical Engineering by Shimroz123

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