Почему тухнет дуга при работе плазморезом.

https://izmail-invertor.com.ua/ - Follow this link to find the right welding equipment with testing and a warranty from Izmail Inverter. The arc goes out when using a plasma cutter. This is a fairly common problem with single-phase household plasma cutters. https://izmail-invertor.com.ua/index.... - link to article This problem is more common when using a plasma cutter in the private sector, powered by a household network that is not designed for heavy loads. The fact is that single-phase plasma cutters are very sensitive to power. Compared to an arc welding machine, its supply voltage range is quite wide – on average, from 180V to 250V. In this case, welding operates reliably, despite the fact that the maximum output current at the minimum permissible supply voltage will definitely be lower than stated. However, the machine itself will remain fully functional. Plasma cutters are much more stringent. For example, the power supply requirements for the CUT 40 plasma cutter are listed below. 1. The line voltage must not drop below 210V under load (during cutting). 2. The maximum permissible power drop must not exceed 15V (the difference between the line voltage when the plasma is not cutting and the line voltage under load, when the plasma is cutting). 3. The power supply capacity of your power supply must be rated for at least 7 kW of output power (with input circuit breakers rated at least 25A). If your power supply does not meet these requirements, the plasma cutter WILL NOT operate reliably! As you may have noticed, the supply voltage range is much smaller than that of arc cutters—the lower limit is at least 210V, and the delta (difference) between the no-load supply voltage and the under-load voltage (when the cutter is cutting) should be no more than 15V. This is also a very important parameter that shouldn't be neglected. Because there may be conditions where the supply voltage is 240V at idle, but drops to 210V (or lower) under load. A delta of 30V is too high, and the plasma cutter won't operate reliably under such a voltage. Another important point: line voltage measurements should be taken under a 4-5 kW load. If you're just planning to purchase a plasma cutter, you can test your supply voltage using powerful household appliances, such as an electric kettle or stove (making sure their combined power is 4-5 kW). The goal is to first measure the voltage without a load, then apply a 4-5 kW load, and repeat the measurement. Compare the resulting values ​​with the recommended values ​​above. This is the minimum that will help you avoid unnecessary expenses and unpleasant situations. All the best! Links to recommended plasma cutters: Jasic CUT 40: https://izmail-invertor.com.ua/plazmo... EDON CUT 65: https://izmail-invertor.com.ua/plazmo... EDON CUT 100 (380V): https://izmail-invertor.com.ua/plazmo...