Latest news with #SengkangPunggolLRT
CNA
a day ago
- General
- CNA
Services on Sengkang-Punggol LRT line disrupted due to cable fault
A cable fault between two stations is believed to have tripped the power on the Sengkang-Punggol LRT network, crippling services for hours on Aug 15 morning. It is the second such outage in three days, following a similar fault on the same line earlier this week. Charlotte Lim reports.
CNA
4 days ago
- General
- CNA
NEL disruption: Main and backup power supply tripped at depot substation, says SBS Transit
SINGAPORE: A trip in the main and backup power supply at a depot substation caused an hours-long disruption of train services on the North East Line (NEL) and Sengkang-Punggol LRT on Tuesday (Aug 12). Preliminary investigations revealed that the power switchboard had failed, causing a flashover in one of the voltage transformers that is used to regulate the power supply, SBS Transit said in a press release on Tuesday evening. "This resulted in a trip in both the main and backup power supply as part of the power protection mechanism," it added. The power fault led to a three-hour disruption of NEL services, which affected 11 stations between Farrer Park and Punggol MRT stations. The faulty voltage transformer could not be repaired immediately and a decision was taken to bypass the depot substation and draw power from the other substation at Dhoby Ghaut so that train services could resume, said SBS Transit. "Our engineers also carried out extensive checks to ensure that the fault will not impact the operational stations," it added. Power was progressively restored to the affected stations, and NEL service fully resumed at 2.10pm. Services on the Sengkang-Punggol LRT were also down for about five hours due to the power fault. Recovery works on the Sengkang-Punggol LRT had to be carried out in stages to ensure a steady increase of the electrical load and prevent another power trip as both the NEL and Sengkang-Punggol LRT are now relying on a shared substation, said SBS Transit. To ensure safe running of Sengkang-Punggol LRT services, a complete restart and checks of the signalling and power systems and the LRT vehicles had to be carried out. "This took additional time before power on the Sengkang LRT was restored at 3.34pm while service on the Punggol LRT resumed at 4.04pm," said SBS Transit. "However, to avoid stressing the power supply from the single substation, a decision was made to operate the Sengkang-Punggol LRT services on a single track for both the east and west loops during the evening peak periods." SBS Transit engineers, together with Land Transport Authority (LTA) engineers, will be working during engineering hours on Tuesday night to restore power supply to the NEL depot substation. "This will allow full service to be available for the Sengkang-Punggol LRT when service commences tomorrow," it said.
