| 摘要 |
<p>The traction invertors (1) on the electric train may be fed from a monophase alternating current supply (2) via a transformer (3,4) and a monophase alternating to direct convertor (5). The convertor (5) has its own dedicated output capacitance (7). The traction invertors (1) may also be supplied with continuous current from a catenary (8) and inductive filter (9) either directly or through a raising or lowering convertor (11). During this mode of operation a switch (12) isolates the alternating to direct convertor (5) and it's output capacitance (7). The output capacitance is retained in the circuit as part of the required bus capacitance.</p> |
