This depends on the efficiency of the transformer. If you are wanting to use 230VAC primary and 120VAC secondary on the transformer, the watts will be very similar. 110VAC with 4amp is 440 watts, which on the primary side of the transformer will be 230VAC with atleast 1.91 amps being drawn (440watts). Again, that’s at 100% efficiency of the transformer. I’m sure there will be a slightly higher current draw on the primary side than the 1.91 amp as your transformer will not be 100% efficient. Thanks for visiting. ]]>

(110-120V 60Hz 4.0A)

My problem is

(110-120V 60Hz 4.0A) how mach the watts.use of transformer?

Please reply

Thanking You

Liyanage

I forget the formula off the top of my head, but there was quite a bit involved, the efficiency of the hot water tank, ambient temperature, gallons, then the formula was something like it takes xxx BTU to heat 1 gallon to xxx temp.. I’ll see if I can find it again. ]]>

I can’t give you an exact number, but I can give you an average. Just take 2500 kWh and divide by 30.5 days, that won’t tell you exactly what eachbday uses, but average overall. Hope that helps. 81.97 kWh each day. ]]>

My power bill on avarice says 2500kwh used

I am trying to calculate that into what’s used per day.

This is such a great site and I research lots on here as I am building a new house off grid.

Well it’s getting close to having to decide on my solar set up.

Thanks for the help. ]]>

If the generator is 1,000 watts, running for 1 hour would be 1kWh. You will reach 1,000watts as soon as you reach 400rpm. Deep cycle batteries are best used. As far as capacity of the batteries, this depends on how long you want to be able to use power, and what kind of power you are pulling on your load. ]]>

if i have 1kw PM-generator @ 400 rpm, i want to drive it with animal power with gearbox, if i reached 400 rpm, how many hours will take to get 1000w(1kw) power.

+ which kind of batteries and what capacity of batteries i need to store 1kw, without grid connection. ?

best regards ]]>

If I want to calculate the KWh of a watt load that changes all the time like my house power. Will it work if I record the total watts every minute. Then after 60 minutes add all the values up and the / 1000 to get the KWh for that hour. You keep on doing that until you have 24 hours to make up a full day. Then you add all the hours to get the total for the day.

Regards Jaco

]]>I need more information from you. I need to convert 10 amps to watts. To do so that’s Amps x Volts = watts so is this 10 amps on 12vdc, 120vac, 220vac, 480vac? ]]>

I have a 10 amperes meter.

My question is: If I utilize it full for 20 hours, how many kilowatts would I have utilized?

Thank you in advance. ]]>

What is the maximum value of a load which consume 500 KWh per day at a load factor of 0.40, if the consumer increases the load factor of 0.50 without increasing the maximum demand? ]]>

You can use the calculator on my site to do this. Just enter your values and it will calculate. But, if that’s really 50kW generator and not 5kW generator and your generator runs 24 hours a day, every day, you should be generating 10 times the amount you need. So within about a week you should have enough electricity generated to last the entire month. If its a 5kW generator you will just break even about every month. ]]>

You could use the formula I have provided to calculate each second then add them together. 1 second is 0.000277778 hours, so if your sensor is reading 10, 5, 19 you could calculate each one using 0.000277778 hours as your time, then add up each of those calculations to give you your kWh. You can also add up all 3,600 readings, divide by 3,600 (giving average watts) then use that with my kWh formula. So ((SUM-OF-YOUR-3600-READINGS/3600)*1)/1000 = kWh Which since it’s for only 1 hour, you can leave out the *1 and just do (SUM-OF-YOUR-3600-READINGS/3600)/1000 = kWh. Yes, you are right, this will give you the average used during that hour, but at the same time, this will be the amount that would have been used constantly for that entire hour, giving you the accumulated kWh. ]]>

here are my Questions

1.find out how Eskom or municipality charge out electricity?

2.how much power does a 1 kw generator give if the generator is on for 24hours a year?

3.if the generator uses 1 litre per hour how much would your cost be for 1 unit if it may on for 24hour ayear?

Regards

owen khosa

0780689592

If I have a sensor which takes a reading of Watts every second – how do I calculate my usage for an hour?

For example, if I total up those values and divide by 3,600 (60min * 60sec), aren’t I just getting an AVERAGE usage for the hour and not actual accumulated?

Thanks for shedding any light on this for me :)

]]>Here is a calculator to calculate your kWh ]]>

Anyone can help me to find the below, please

A bungalow unit with 1500sq ft floor area at 2VA/sq ft, 12,000 VA electric range, 4500 VA heater, 1200 VA dishwasher, 5000 VA clothes dryer, 1035 VA kitchen waste disposer, and 10,000 VA of separately controlled electric baseboard in six rooms. Using the Demand Factor at 100% is 3000 VA and Remaining Load at 40%. Determine the Kwhr consumption of the unit.

Thanks

]]>415-559-2473

]]>Do you mean what is the average power usage for water pump for a geyser or do you mean a nature geyser? ]]>

This depends on how you’re converting the diesel to electric. How many watts your generator puts out, the generator’s efficiency, etc. ]]>