# Calculation branched chain sinusoidal current. Var.1

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Verification work in electrical engineering.

Calculation branched chain sinusoidal current. Option 1

Year: 2008

1. In the absence of inductive coupling between the coils to determine the currents in all branches of a given circuit; create a balance of active and reactive power; construct a vector diagram of currents and voltages topographic chart, as well as the curves of instantaneous values \u200b\u200bof EMF.

2. Taking into account the mutual inductance coils and the set values \u200b\u200bof the coupling coefficients, determine all the values \u200b\u200bof the current in the branches; construct a vector diagram of currents and voltages topographic chart.

The calculation of the required parameters (current, voltage, power, etc.) should be performed by a complex method for which all inputs (EMF, capacitive and inductive resistance) is recorded in the form of complex values.

In determining the currents in the first part of the calculation should use mesh analysis or nodal analysis.

The values \u200b\u200bof the circuit elements have the following meanings:

At Em1 = \u200b\u200b282,8, Em2 = 141,4 B φE1 = 0 φE2 = 300, R1 = 4 ohms, R2 = 3 ohms, R3 = 3 ohms, L1 = 0,95 mH, L2 = 1,27 mH , L3 = 1,9 mH C1 = 39.8 microfarads C2 = 31.8 uF, C3 = 26.5 uF coefficients of inductive coupling coils k12 = 0,7, k13 = 0, k23 = 0,6, frequency F = 500 Hz.