SINGAPORE: On Wednesday, October 25, the multi-year program to maintain and improve the six key techniques of the North-South and East-West MRT lines( NSEWL ) was finished. & nbsp,
The sleepers, second bridge, signaling system, monitor circuits, power supply, and train fleet are the six main systems. & nbsp,
The road system development program has carried out extensive system renewal and upgrading work in phases since 2012.
Since then, renewal efforts have been concentrated on finishing the remaining components after three of its core systems— sleepers, the third rail, and the signaling system— were finished before 2020.
A” condition monitoring feature to allow faults to be pre-emptively addressed” is a common feature of the new train fleets, power supply systems, and track circuit, according to the Land Transport Authority( LTA ).
This makes it possible to stop service disruptions before they lead to a larger program breakdown or dislocation.
TRACK CIRCUIT SYSTEM RENEWAL
The new record loop system may improve rail reliability, according to LTA on Wednesday. Additionally, it can assist in identifying” broken rail in need of repair ,” lowering the possibility of disruption and enabling more effective preventive maintenance. & nbsp,
The Communications – Based Train Control signaling method, which was finished in 2018 to show the location of all trains on record, collaborates with the new track circuits. This reduces the effect on travellers by allowing the operator to concentrate its response attempts and speed up train treatment in the event of a problem. & nbsp,
More than 1,100 record circuits have been replaced since 2018 as part of the NSEWL system’s replacement work. In December, some slight track circuit construction projects that are still ongoing are expected to be finished.
RENEWAL OF POWER SUPPLY
However, according to LTA, the NSEWL’s fresh power supply system has improved real-time checking features, which enhances fault detection and prediction.
For instance, it will continuously keep an eye on the detachment of grip cables, allowing the operator to determine their situation and make” appropriate pre-emptive interventions” as necessary.
Acting Minister Chee Hong Tat stated at the conclusion meeting on Wednesday that the power supply replacement works, which started in 2018,” encompassed the successor of 1, 300 km of power cables, 250km of fiber-optic cables and hundreds, power inverters and switchboards.”
” Nearly six times the length of Singapore’s peninsula is covered by all power cords ,” according to nbsp.
To” isolate power faults and prevent line-wide disruptions ,” according to LTA, all NSEWL stations have also switched out their 64P touch voltage protection systems for new Voltage Limiting Devices.