| 摘要 |
PURPOSE:To reduce creeping amount of multiple configuration brake when it is slowly released by connecting the contact of a 'limit speed + DELTAV speed' check relay in series with the contact of a strong brake output relay itself then connecting the contact of a limit speed check relay in parallel therewith. CONSTITUTION:An automatic train control system comprises a strong brake output relay 7 where a-contact 6a of a 'limit speed + DELTAV speed' speed check relay 6 is connected in series with a-contact 7a of the strong brake output relay 7 itself according to coil pressurizing condition and a-contact 3a1 of a limit speed check relay 3 is connected in parallel therewith, an OFF-delay relay 8 having b-contact 7b of the strong brake output relay 7 according to coil pressurizing condition, and a weak brake output relay 9 where a-contact 3a of the limit speed check relay 3 is connected in series with b-contact 8b of the OFF-dely relay 8 according to coil pressurizing condition. By such arrangement, sectional length is shortened and creeping amount of multiple system relay is reduced when the brake is slowly released. |
