What is the safety factor is to be consider while selecting the switchgear and protection for electrical system

1 Answers  

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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

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when is safety goggles use mandatory?

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I am a possesor of c licence from 1993. I forgot to renew during the year 1998. During that time I was working at TNEB to till date. Is there any possibility to get renewed? or to apply for a new one?

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what is the different beetween kva and kwh?

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difference b/w series&parallel

4 Answers   ABB,

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Dear sir, In our plant have Station Transformer having capacity,i want to know, why LV side 40 - 40MVA is given? & how we can get 6.3 KV supply from tertiary(i.e. Open delta connection), Vector Group YNyn0 - yn0 +d MVA Rating 80MVA / 40 - 40MVA + 26.7MVA Voltage rating 420 (Tap range +6,to -10)81.25% /11.5KV - 11.5KV +6.3KV

0 Answers   Bhel,

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how to diffrentiate between ac & dc motors from a distance

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do you know measure the earth resistance?explain

1 Answers   Dalkia,

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If 110V DC Coil Contactor taken 15ma DC on load,than how much AC current wil be taken?

0 Answers   Lafarge, Shree Cement,

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Our Slip Ring Induction Motor Frequently tripped By Earth Fault While Starting time and in Normal Operation Time also Kindly Let me Know the Reason. Application Ball Mill - Cement Mill

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what will happen if ac motor given dc supply?

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