Potential-free DC voltage network

The invention relates to a potential-free DC voltage network, comprising a DC voltage source, an inverter (4) and at least one customer (5) connected to the inverter (4), the DC voltage source being connected to the inverter (4) through a positive voltage line (14) and a negative voltage line (15). A first leakage capacitance (CY) is arranged between the positive voltage line (14) and the ground and a second leakage capacitance (CY) is arranged between the negative voltage line (15) and the ground, wherein the leakage capacitances (CY) have extra circuits, which prevent current flowing in at least one direction from the ground to corresponding voltage lines (14, 15) at at least one frequency. 本发明涉及种无电势直流电压网，其包括直流电压源，逆变器(4)以及至少个连接在所述逆变器(4)上的耗电器(5)，其中，直流电压源以正极电压线缆(14)和负极电压线缆(15)与所述逆变器(4)连接，其中，在正极电压线缆(14)与地之间布置有第排放电容(C)，在负极电压线缆(15)与地之间布置有第二排放电容(C)，其中，排放电容(C)分别具有额外电路，所述额外电路至少在个频率上阻止至少在个方向上从地流向相应的电压线缆(14、15)的电流。