| 摘要 |
The connection for reducing the high-frequency interference of a power transistor converter supplied from a network rectifier (U1) and working to load through the transformer (TR) and the output rectifier (U2) consists of a network filter consisting of a compensated three-phase damper (L1) and three phase dampers (L2) connected between the main circuit breaker (J) and network rectifier (U1) and the first condensers (C) connected in a star pattern between the particular phases and the central conductor (N). Each first condenser (C) is connected to the first RC element (R1, C1). The circuits also include a varistor (V) connected in parallel to the output terminals of the network rectifier (U1) and in the transistor inverter of RD protection (R, Z, D1) and the first floating protection (P1). The secondary winding of the transformer (TR) is connected in parallel to the third capacitor (C3) and the third RC element (R4, C4), the second floating protection (P2) is connected to the outlet of the output rectifier (U2) and the fourth RC elements (R5, C6) are connected in parallel to the output terminals of the whole converter and the centre of their resistors (R6) is connected to the central conductor (N) where it is connected to the first condensers (C).<IMAGE>
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