For the main work, quite often it was necessary to install water meters using an electric welding machine. Sometimes, not often, the question came from clients: "And how much will your machine, for welding polypropylene pipes, consume electricity?" While doing this work. And do we have to pay for this? " (The welding device has to be connected to the socket of the apartment owners.)
A stupid question, how greedy you have to be to count the consumed energy for half an hour of work. Naturally, I answered that: “I don’t know, I didn’t make such calculations, but I guess quite a bit. Spending like that won't make a hole in your budget... "
But I was tired of this formulation of the question, I decided once and for all to find out the consumption of the welding machine for polypropylene pipes
To do this, I took a welding machine bought in the "Traffic Light" store with a declared power of 1500 watts.
Measure power, operating time under load, I will digital wattmeterbought on aliexpress. A good thing, but the main thing is useful and inexpensive.
By connecting a cheap welding machine to the network, purchased for 600 rubles, I was surprised by its parameters. Instead 1500 watts. Gives out the power of everything 528 watts
Although above, in the photo, you can see its characteristics. It became curious. And I got into the instructions for this device.
Yes, it says that the power consumption of the device 1500 watts. But there is a postscript that this is the maximum value that will never be reached. Open up. The curtain...
We work with what we have. I will plug this device into the network for half an hour. The wattmeter will calculate the actual operating time. After all, the welder has a thermostat on its board that turns it off when heated to 300 degrees. As it cools down, he turns it on again.
As a result, for 30 minutes of work, the tendencies inside the apparatus heated up for seven minutes. "Burnt" 58 W.
We translate W into rubles or kopecks
The cost of one kW / h is 3.33 rubles, after making simple calculations, I found out that 19 kopecks are spent by a pipe welding machine in half an hour of work. Now I know what to say to clients "Kurkul" on this issue. And I can even make a symbolic gesture, make a discount of 20 kopecks. For the use of electricity...
Wattmeter took here, sale soon. I think the price has dropped.
Author's channel, all photos are personal. From SW. Timofey Mikhailov.