| 摘要 |
PURPOSE:To improve reliability and safety of running by changing over current supply from each substation with high speed without temporarily stopping the running of electric cars when they travel under the electric car line divided into sections between two adjacent AC substations. CONSTITUTION:An electric car line for supplying current to an electric car 6 traveling along a rail 5 is constituted from first and second electric car lines 1a, 1b to which is applied the output voltage of first and second AC substations 2a, 2b and a third electric car line 1c connected between both electric car lines 1a, 1b through sections 3a, 3b. And the electric car lines 1a, 1c and 1b, 1c are interconnected through an electric path comprising bridge circuits 11a, 11b, a thyrister breakers 14a, 14b. And according to the comparation result of each voltage phase of electric car lines 1a, 1c or 1b, 1c, each of breakers 14a, 14b is controllably turned on and off during traveling of the electric car 6 between the substations 2a, 2b. |
