The three-phase symmetrical load is connected to the three-phase power supply with 380V line voltage by triangle connection method. It is known that if the load is 10a, what is the current in the live line I can add more points

When the load is Y-connected, the line current is equal to the phase current;
In triangle connection, line current = root 3 × phase current = 1.732 × phase current
In your topic, the load is 10a, which means the current in the load is 10a, that is phase current
So the line current is 17.32a, which is the current in the live line
Three phase power supply, three wires are live wire

There is a three-phase resistance furnace. The resistance of each phase is 5.78. When it is connected to the line voltage of 380V, how many kilowatts of power are consumed when it is connected to the angle connection and the star connection?

Star (y) connection: phase voltage U1 = 380 / root 3 = 220 V,
Total power P = 3 * U1 * U1 / r = 3 * 220 * 220 * 0.001/5.78 = 25.1kw
Triangle (d) connection: phase voltage U1 = line voltage U = 380 V,
Total power P = 3 * U1 * U1 / r = 3 * 380 * 380 * 0.001/5.78 = 74.9kw

How much is the current and resistance of 220 V 45 KW electric furnace wire star connected to 380 V?
What is the current and resistance of 380v45kw electric furnace wire triangle connected to 380V?

1. 220 V 45 KW electric furnace wire is star connected to 380 V, phase current = line current 45 / 220 = 204 a, resistance R = (220 * 220) / 45 = 1.07 Ω
2. 380v45kw electric furnace wire is triangle connected on 380V, phase current = 45 / 380 = 118a, line current = 1.732 * 118 = 204a
Resistance = (380 * 380) / 45 = 3.2 Ω

The three-phase symmetrical load is connected to the three-phase power supply with 380V line voltage by triangle connection method. It is known that if the load is 10a, what is the current in the live line I can add more points