ZX7 inverter type DC arc welding machine, when the welding current is 150A, how much power can it have?
1 when the welding current is 150A.2. If the maximum power of ZX7 500 inverter type DC arc welding machine should be 25 thousand volt ampere, we can check exactly how much.3, in fact, kilovolt ampere and kilowatt should be about the same meaning, you should understand.4, according to the current you use, you can calculate the power consumption of the welding machine.5, you can do a rough calculation, (25 / 500) * current you are using now.6, if you use the 150 current, now (25 / 500) * 150=7.5 (kW / h).
Teach you a rough calculation for your reference,The formula for the scheduled load of arc welding power is U=20+0.04I, that is to say, the output voltage is equal to 20 and the output current is multiplied by 0.04,When the welding current is 150A, the welding voltage is U=20+0.04*150=26 (V), and the output power of the welder is P=26*150=3.9kw.The output efficiency of the ZX7 type inverter welding machine is above 85%, and is set to 85%, then the input power of the welder is 3.9/0.85=4.588KWThe power of the welder can be up to 90% and 90%, then the actual input power of the welder is 4.588/0.9=5.1KVAZX7 500 welder load sustained rate is 60%, the current 100% machine continuous output should be 500 multiplied by 0.6 square, equal to 387.3A, which can keep the welding work in the output current is below 387.3A, the maximum 500A, within 10 minutes of work only 6 minutes, 4 minutes to stop, the actual welding machine overheating protection function, welder overheating will protect the machine, although when used on the line, do not have to worry about overheating and burning machine.Arc welding power source is of constant current, welding, the output current is constant, while the output voltage with the electrode tip from the workpiece distance changing that the arc length is changed, the smaller the distance, the welding voltage is lower, the output power is low, the distance is, the greater the welding voltage, output power the greater the. That is to say, when welding an electric welding machine, its power is a constant value in a certain range.
Probably can only be calculated when welding in general, because of the arc, the arc of that moment consumption is relatively large, the arc voltage of 70V welding voltage is about 30V, according to Ohm's law 30 multiplied by 150 ampere voltage =4500W is 4.5 kW and its loss is less than 100W and the total power should not arc to 5KW, the welder should also consider the sustained load, generally less than 60% of the whole ZX7 is saving than at least half exchange
