UPS output
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An interesting thing was observed during the maintenance period: our UPS has an ammeter connected to its output. In August and September, the current level was 18.1 A; it kept rising after autumn, and now it has reached 20.3 A, with a gradual increase in current levels. The voltage hasn’t changed either. No fuel was added to the gauge either. Is it because the instruments consume more power in cold weather? Think about it – phones use more battery power when it’s cold. I feel it’s getting colder again; the resistance of the cables must have decreased as well. The loss should be small. I really don’t understand; I hope the more experienced ones can give me some guidance.
There has been no significant change in the load; has the input voltage of the UPS increased? If the input power of the UPS increases, then the output power should also increase. To keep the voltage constant, this means that the current must increase as well.
Is electric heating being powered by a UPS? The power consumption is higher in cold weather; it’s recommended that the original poster take a look. Just guessing!
The input voltage hasn’t changed; I think the output is higher. Either the power of the instruments on site is greater, or there is more loss. The process load and the number of instruments have not increased.
Personally, I think it’s the cold weather that increases the wear and tear.....
Is there a battery that has failed, causing the internal resistance to increase? This is my personal opinion for reference only.
Cables are made of materials such as copper and silver, which already have very low resistance; reducing it any further doesn’t make much of a difference. It’s impossible to achieve a resistance of 0 even at 100 degrees. The problem still lies with the electronic components. For many electronic components, the lower the temperature, the higher the energy consumption. There are many electronic components inside the instrument, which will definitely increase power consumption. You say that phone batteries drain quickly, and phones also have a great many electronic components.