Feeder Facilities for the PMS Delivered to the Singapore Changi Airport

摘要

At the Singapore Changi Airport, Sky Trains are presently operated between Terminal 1 and Terminal 2. Since Terminal 3 is going to be opened shortly, the Automated People Mover System (PMS) that connects three terminals is going to be in service. The PMS connects the three terminals with the elevated lines of the length 6.5km. Ten trains will be operated among seven stations at constant intervals. The new independent Traction Power Substations (TPS) namely North TPS and South TPS are installed in two places. Each TPS receives 22kV AC power supply from the intake substation located at Terminal 3 and supply 750V DC traction power to feeders. These TPS are also equipped with the braking resistor unit intended to absorb regenerated power from the cars (trains), the station power supply the low-voltage power distribution system, the DC control power supply, the Over Voltage Protection Device (OVPD) In addition, the trains can be operated with the electric power that is fed from the emergency generator in the case of a power failure. The ratings of the substation equipment have been selected in consideration of the number of operated trains and an increase in connected cars in the future as well as a future expansion of traffic capability.