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AVR acts has a stabailizer

what is the Mechanism of energy saver FAN how average power,reactive power, power factor e.t.c realated to it and how it apply to this FAN .and how this fan save energy w.r.t circuit analysis,plz repaly to this question this is the assignment to given to me.thanks

1 Answers  

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State uses of different types of stsrters with different capacities of motors as below: a. up to 5HP b. above 5hp to 10hp c. above 10hp to 20hp d. above 20hp

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How Kneepoint voltage of CT practically related when CT in service. ie Knp is above 670 what exactly means

0 Answers   ABC,

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What is meant by IP55 motor.Where it is used?

2 Answers   Zuari,

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what is use of capacitor in fan

8 Answers   ABB,

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what is the knee point voltage ? what is differtial rela? what is impedance and % of impedane? what is the postive phase sequance ? negative phase sequane ? and zero sequance impedance ? what is sortcircuit calculaion? why take calculation? define stabilty test ? why? what sentivity test? define merz protection ? what is the burden ? class 5p10, accracy, metering ct take knee point voltage test thet time what heppan why dont take knee point test to metering ct?

0 Answers  

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please give some hindalco placement papers for written exam

0 Answers   Hindalco,

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we have a lot of model of rectifier but thyristor rectifier is the most rectifier that use in power system. Do you know why this rectifier is used?

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In CT, burden is 15 VA and protection 5P20,CT ratio is 100:1 then what would be the knee point voltage ?

2 Answers   ERL,

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What are the specific gravity of fully charged and fully discharged lead-acid battery?

1 Answers   Mukand,

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a induction motar has 30-35% exciting current at no load but in transformer it is only 2-3% ofbrated current why any reason?

1 Answers   century,

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How work of capacitor in dc supply...???

0 Answers  

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