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Neutral wire break

Lecture





Given
neutral wire break
  Neutral wire break
Il = 380 V

Za = 10 ohm

Z = j10 Ohm

Zс = -j10 Ohm

Determine the currents in the receiver phases

Calculation of the phase voltages of the source

  Neutral wire break

Calculation of neutral bias voltage

  Neutral wire break

Calculation of voltages on the receiver phases

  Neutral wire break

Calculation of currents in the phases of the receiver

  Neutral wire break

The sum of the currents is 0

Triangle inclusion example

Given

Determine the currents in the phases of the receiver and in the lines

The phase voltages of the receiver are equal to the corresponding linear voltages of the power supply:


phase currents:

The currents in the phases are determined by Ohm’s law:

Line currents are determined by phase currents according to the first Kirchhoff law:

The sum of the line currents is 0


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Electrical Engineering, Circuit design

Terms: Electrical Engineering, Circuit design