Method and device for assigning individual phase conductors in a polyphase energy distribution network

摘要

A method for assigning individual phase conductors at a first point to those at at least one further point in a polyphase energy distribution network, in particular in a three-phase network. In the case of mains operation, wherein a common reference time is determined for these points, and the time difference and/or phase difference of the phase voltage or the line-to-line voltage between the reference time of a zero crossing of the phase voltage are determined for these points. By a comparison of the time and/or phase differences at two different points the phase conductor of one point is assigned to a phase conductor of the further point which has the same to time and/or phase difference with respect to the common reference time. An additional loading of the energy supply network or an interruption of the mains operation is avoided by the method.

主权项

1. A method for assigning individual phase conductors at a first point to phase conductors at at least one further point in a polyphase energy distribution network, in a case of mains operation, which comprises the steps of:
determining a common reference time for points in the polyphase energy distribution network including the first point and the at least one further point; determining for the first point, in a case of a four-conductor network, for at least one phase conductor a time difference and/or a phase difference of a phase voltage between a reference time and a time of a zero crossing of the phase voltage, or determining in a case of a three-conductor network, for at least two of the phase conductors the time difference and/or the phase difference of a line-to-line voltage between the reference time and the time of the zero crossing of the line-to-line voltage; determining for the further point, in the case of the four-conductor network, for at least one phase conductor, the time difference and/or the phase difference of the phase voltage between the reference time and the time of the zero crossing of the phase voltage, or determining in the case of the three-conductor network, for the least two phase conductors, the time difference and/or the phase difference of line-to-line voltages between the reference time and the time of the zero crossing of the line-to-line voltages; comparing the time difference and/or the phase difference at the first point with the time difference and/or the phase difference at the further point; and assigning a phase conductor of the first point to a phase conductor of the further point having a same time difference and/or a same phase difference in relation to the common reference time.