Unsymmetrische Dreieckschaltung, Ströme und Leistungen berechnen, Beispiel (Drehstrom 03)

0:00 Three-phase delta connection task 0:27 Results 0:47 Solution a) Phase currents 7:04 Solution b) Total 8:02 Solution c) Apparent power 9:12 Solution d) e) Reactive power, active power Three-phase loads in an asymmetrical delta connection - how do you calculate phase currents and power? This is explained simply and clearly using an example. In this video, I use a problem to explain how to calculate an asymmetrically loaded delta connection. An asymmetrical load in a delta connection is supplied by the three-phase network with UN = 400 V, f = 50 Hz. The resistance data is given, and we are looking for the individual phase currents, their sum, and the three power levels that the load draws from the three-phase network. The calculator's complex mode is ideal for this; you simply enter: amount, angle sign, angle plus next amount, angle sign, angle, etc. The calculator usually gives you the result in standard form, i.e. x plus y times i. In polar form, also called exponential form, the result then looks like a residual current is flowing. Adding the phase currents doesn't make sense at first, because the currents don't flow in parallel. Calculating the sum therefore doesn't produce any real residual current. There is also no neutral wire, as in a star connection, through which this residual current could flow. The result of this calculation is needed solely for the next sub-task, which concerns the power that the consumers draw from the grid.