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The formula you are looking for is I = W/E

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Q: How do you calculate ampere given 220v AC 40KW?
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How do you calculate back up time of battery?

battery backup is fully depended on battery discharge characteristics. discharge characteristics are c1 c5 c20 Need to consider c factor, calculating backup of batteries 100 AH BATTERY DISCHARGED BY 5 AMP CONSTANT = 100 AH 100 AH BATTERY DISCHARGED BY 20 AMP CONSTANT= 85 AH 100 AH BATTERY DISCHARGED BY 50 AMP CONSTANT=70AH 100 AH BATTERY DISCHARGED BY 100 AMP CONSTANT=50AH FOR KIND CONSIDERATION. FOR ANY CLARIFICATION CONTACT saalsood@gmail.com Battery back up time=Battery current at full load/Battery Ah


How much horsepower to run 40 kw generator?

A watt (or kilowatt) is the unit of measurement for power, not energy. Power is the rate of transferring energy and, so, the watt is equivalent to a joule per second.So, your question doesn't actually make any sense. It's rather like asking, "How many kilometres are there in 40 kilometres per hour?"However, you could have asked how much energy is transferred at the rate of 40 kW (not 'Kw') over, say, one hour. In which case, the answer would be 40 000 x 60 x 60 = 144 MJ (megajoules).


How do you obtain 277 volts single phase from a three phase 480?

277 volts is the phase to neutral voltage on a 480V 3-phase system. There is really no such thing as 277V 2-phase. Can you convert 277/480V 3-phase utility power to 120/240V single phase? Sure, but it will be expensive for any reasonable amount of power. You will need three transformers with 480:120 ratios. The primaries are each fed 480V A-B, B-C, and C-A. The three secondaries are connected in what is called a zig-zag configuration. The output will be 120/240V. This is rarely to never done with utility power using transformers, but it is routinely done on generators to obtain single-phase power when only a 3-phase generator is available. The generator must be reconnectable, that is, the three (sometimes six)windings must not be connected internally. One drawback is you can only load such a system to 66% of its rated power. So a 60KW 3-phase generator reconnected in a zig-zag configuration can only supply 40KW of single-phase power. But at least you don't need any transformers! Look at a generator manufacturer's website (Marathon has a good one). They have technical data on these types of arrangements. So while it is theoretically possible, its not really practical unless you are talking about a generator.


Related questions

What is 40 kw equals to BTUs?

40kW equates to 136,485.68 BTU/hr


What is the rate of heat generation from fission of nuclear fuel?

These are approximate figures, but in the right ballpark. A typical large reactor will produce about 3000 MW thermal, and contain about 75 tonnes of fuel, so that means 40 MW/tonne. Or if you like, 40KW/Kg.


How do you calculate back up time of battery?

battery backup is fully depended on battery discharge characteristics. discharge characteristics are c1 c5 c20 Need to consider c factor, calculating backup of batteries 100 AH BATTERY DISCHARGED BY 5 AMP CONSTANT = 100 AH 100 AH BATTERY DISCHARGED BY 20 AMP CONSTANT= 85 AH 100 AH BATTERY DISCHARGED BY 50 AMP CONSTANT=70AH 100 AH BATTERY DISCHARGED BY 100 AMP CONSTANT=50AH FOR KIND CONSIDERATION. FOR ANY CLARIFICATION CONTACT saalsood@gmail.com Battery back up time=Battery current at full load/Battery Ah


What vw engine block is the UO 121 282 and what car did it come out of it is a 2.0?

I have UO 292789 and my research says it came from a Type 3 and was manufactured in January 1970 with fuel injection. (It is now carburated). Your engine appears to be a 1600 54-hp m236 made between 12/31/68 and 7/31/69. Model Year 1969 8/1/68 12/31/68 7/31/69 Engine number: 1500 33KW 45BHP K 0120745 K 0131969 K 0150000 1500 30KW 41BHP (M240) M 0002445 M 0002879 M 0003544 1600 40KW 54BHP T 0574186 T 0616933 T 0690000 1600 36KW 50BHP (M240) P 0004321 P 0004677 P 0005281 1600 40KW 54BHP (M236) U 0093652 U 0154029 U 0231100 Chassis number: 319 000 001 319 108 899 319 500 000


How much engy dose a wind turbine use?

A wind turbine can use up to 40kw/h of energy at once. When for example the turbine is yawing into the wind (turning the head of the turbine into the wind for the blades to face the incoming wind). 4 high power motors and gears are used to do this. When at the same time the hydraulic system is turned on to control the blades to position themselves in the wind, and the motors for the cooling are enabled, the windturbine can require a lot of wind. However usually this is generated by the turbine itself. So this is not really relevant as the output is much higher then the usage.


How much horsepower to run 40 kw generator?

A watt (or kilowatt) is the unit of measurement for power, not energy. Power is the rate of transferring energy and, so, the watt is equivalent to a joule per second.So, your question doesn't actually make any sense. It's rather like asking, "How many kilometres are there in 40 kilometres per hour?"However, you could have asked how much energy is transferred at the rate of 40 kW (not 'Kw') over, say, one hour. In which case, the answer would be 40 000 x 60 x 60 = 144 MJ (megajoules).


How do you obtain 277 volts single phase from a three phase 480?

277 volts is the phase to neutral voltage on a 480V 3-phase system. There is really no such thing as 277V 2-phase. Can you convert 277/480V 3-phase utility power to 120/240V single phase? Sure, but it will be expensive for any reasonable amount of power. You will need three transformers with 480:120 ratios. The primaries are each fed 480V A-B, B-C, and C-A. The three secondaries are connected in what is called a zig-zag configuration. The output will be 120/240V. This is rarely to never done with utility power using transformers, but it is routinely done on generators to obtain single-phase power when only a 3-phase generator is available. The generator must be reconnectable, that is, the three (sometimes six)windings must not be connected internally. One drawback is you can only load such a system to 66% of its rated power. So a 60KW 3-phase generator reconnected in a zig-zag configuration can only supply 40KW of single-phase power. But at least you don't need any transformers! Look at a generator manufacturer's website (Marathon has a good one). They have technical data on these types of arrangements. So while it is theoretically possible, its not really practical unless you are talking about a generator.