How we calculate the average power factor if the one phase is lag and another one is in lead?

1 Answers   DigiTech, MCR,

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what is meant by excitation current & armature current ? where its produce & how we can calculate ?

0 Answers  

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How to Calculate Current Rating of SDFU (Switch Disconnector Fuse unit) for Protectionof Capacitor Bank connected to Busbar of 800Amp,in LV side of 11/0.433KV, 250KVA Transformer?

0 Answers  

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what is difference b/w CFL and Ordinary lamps? which one is useful for power saving?

5 Answers  

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Can anybody please refer the best and simple book for about Protection relays and in detail of all its protection ?

0 Answers  

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IS it possible for a feedbacksurge to travel over a wireless connection?

1 Answers   HP,

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How much RPM in Turbocharger in Diesel engine.

9 Answers   Greaves, MAHINDRA,

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I have a 380 KVA DG set. How can i find out 1. My Fuel Consumption per hr ? 2. Electricity produced in 1 Hr. ? 3. If load varies then how does it affect fuel consumption & electricity produced ? Please HELP !!! Really need an answer.

0 Answers  

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how one can know the charging time, discharging time of a 12 VDC battery ? If i have a battery of 12 VDC , 4.0 AH , how long will it take to charge from a charger (power supply) of input 220 V , Output 15 V and output current of 3000 mA and how long will it take to discharge whether using or not ? How much backup will it give ?

1 Answers   ONGC,

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How many energy meters can be connected on a 15VA Voltage transformer. please send a calculation sheet.

0 Answers  

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difference between the earth mat and earth grid?

3 Answers  

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how much importance of power factor in single phase. is it,s importance is quiet same as like three phase power system.

1 Answers  

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