Standard electricity measurement for equipments?

Question

Can I know how to take the standard measurement for electricity? The reason I am asking this, i am going to standardize the method of gathering the data. Currently we have our facilities team that taking the equipment electricity consumption rate using KiloWatt meter with their identified duration. However, the reading really varies daily and machine to machine. These are the things that we need to correct and to standardize, how long should they need to gather and take the measurement? Or is there any scientific method that can be used to ensure that our measurement is relevant even though the reading of electricity consumption for equipment varies from day to day?

Answer 1

you can use volts, or amperes, or amps. voltage is the how fast the current is traveling and will be accurate.

Answer 2

"Or is there any scientific method that can be used to ensure ..."
No there isn't. If I understand your description, you have people going around using a kilowatt meter on various occasions to measure the KW usage at that time on that machine. You want to know if there is some way you can do the data without the variability and still have it valid.
The only way is to put a meter on each machine and collect the time data periodically. Depending on the meter, this would give you the time average of the KW usage or the total KWH (kilowatt hours) for each machine.
Your situation is comparable to asking "We know it rains some times and not others, but we send people out every hour to check on the rain. Is there some way to make this data valid?" And my answer is equivalent to saying "You have to use a rain gauge or collect the data in a time series (like every minute) and record it."

Answer 3

If you are using a standard duration and the same kilowatt meter ( or ones calibrated the same) they are standardized and relevant (you might want to include the machines operation (load, time in operation)as a function though..)
statistical data of operation is time dependent in this case and may require multiple sample over a period of time days months ...years for real accuracy

Answer 4

i don't really know some of these, but there should have been some obvious answers... i am not at all trying to be mean, just letting you know, plus, even though it is good to get help (especially from teacher) and other allowed areas, you should be doing your work on your own but here 3. The major contribution of the Industrial Revolution was the substitution of _______ for human power. a) Machine power b) Electricity c) Water power d) Critical thinking Definitely A - i am pretty sure you could figure that out on your own ;)

Answer 5

Hire an engineer, or a bright high school graduate at least.

Answer 6

look at a "dranetz" recorder. it will plot power usage vs time over 24 hour periods. (P=IE) or (P=E2/R)... you can also make one of these to do your job