A 40 kva transformer has a core loss of 400W and a full load copper loss of 800W. What is The proportion of full load at maxmimum efficiency?

1 Answers  

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What are high pass filter and low pass filter? and What are the flowmeter ?

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In a company the lines carrying 33KV but the load is below 10000Volts so we know that <11KV we can put 11KV lines but the lines are 33KV,..so how we can step down the voltage to 11KV with out erecting a substation

1 Answers  

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What is high frequency grounding????Applications........

1 Answers   Emerson,

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why steady state stability limit is greater than transient stability limit ? How it can be explained ?

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As we use capacitior bank in 3ph ckt for improvement of PF, why not we use capacitor in single phase domestric use, at our house their are many inductive equipments,like fan,mixer,tube choke,air conditioner they also draw PF... by using capacitor can they improve PF. if yes--what are advantage and how to connect a capactor in single ph,and which type of capacitor if no- what are disadvantages.

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why the voltage is in digit of 11/33/132/220/440 please send me on shukrerabbi_abkhalil@rediffmail.com with thanks

3 Answers  

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what is the different bitween ETP & WTP

1 Answers   Square Pharma,

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High Voltage out door substation-annual maintenance, things to be considered

1 Answers  

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Advantage of 11KV ring main system with open point

1 Answers   Alam Group of Companies,

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i have a roll dia aprox.43 inches and gear box ratio is 14.3.so my question is how was decide the kw rating of motor.

1 Answers  

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i need previous entrence exam papers of nhpc.

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