Sri Lanka Blackout
- country Sri Lanka
- region Colombo
- categories No content
- impacts No content
- start 09 December 2023 at 17:12:00 Asia/Colombo
- end 09 December 2023 at 20:12:00 Asia/Colombo
- duration 3 hours
- primary cause Failure of transmission line
- secondary causes No content
- load lost No content
- number of customers affected No content
- end of disturbance criteria No content
why this is interesting
The line that tripped out due to a lightning strike was carrying 500 MW - 1/3 of the total country's demand
description
- The transmission line from Kotmale to Biyagama which tripped due to a lightning strike was carrying about 500MW, while the total country’s demand was around 1500MW.
- The tripping of the line resulted in the loss of one-third of the supply, leading to a severe under-frequency below the limits tolerable by the other generators supplying the load.
- Consequently, these generators also tripped, causing an island-wide blackout
More details on All-island blackout Biyagama - Kotmale line was carrying one-third of electricity demand - Front Page | Daily Mirror