Verification of phase currents for multi-phase systems

In order to ensure a safe operation of a multi-phase system (1) in the case of a plurality of n phases (L1, ..., Ln), a number of m phase groups (G1, ..., Gm) comprising a part of the phases (L1, ..., Ln) is provided, the phase currents (i1, ..., in) of the number of m phase groups (G1 ,..., Gm) merge at group nodes (K1, ..., Km) into a group total current (ig1 ,..., igm), and a group total current measurement value (iMg1, ..., iMgm) of the group total current is obtained. The measured current values (iM1, ..., iMn) associated with the number (m) of phase groups (G1, ..., Gm) are added to determine a group sum (iG1, ..., iGm), and the group sum (iG1, ..., iGm) is compared with a total group current measured value (iMg1, ..., iMgm) in order to verify the phase current (i1, ..., in) of each phase (L1, ..., Ln) in order to ensure safe operation. 为了确保在多个(n个)相(L1、...、Ln)的情况下的多相系统(1)的安全运行，设有包括相(L1、...、Ln)的一部分的数个(m个)相组(G1、...、Gm)，其中该数个(m个)相组(G1、...、Gm)的相电流(i1、...、in)在组节点(K1、...、Km)中汇合成组总电流(ig1、...、igm)，以及获取该组总电流的组总电