Quickly handle the Southern transformer station incident, restore normal power supply

After the incident, the national power system returned to stable operation. Illustrative photo.

On the evening of April 23, the National Electricity System and Market Operation Company Limited (NSMO) announced that at 2:16 p.m. on April 23, a transformer station incident occurred on the southern region's power system.

Specifically, the system recorded incidents on the 500kV lines connecting the national power system with the Vinh Tan and Van Phong Thermal Power Centers and clusters of renewable energy power plants in the area, causing power outages at the 500kV Vinh Tan, Thuan Nam and Van Phong transformer stations...

Due to the impact of the incident, some coal-fired thermal power plants in the South were suddenly stopped and renewable energy sources reduced generation.

To protect and stabilize the power system frequency, the low frequency protection function is automatically activated according to the calculation scenarios, shedding the load on the power system.

Immediately after the incident, the Company coordinated with the handling units and promptly directed the regional power system dispatch centers and power corporations to urgently restore the load.

In just about 15 minutes, the basic electrical system was restored to normal operation and power was restored to the loads.

NSMO has also directed units to support the restart of coal-fired thermal power plants and quickly restore renewable energy sources.

As of 4:30 p.m. the same day, the Company had basically energized the relevant transformer stations, adjusted the power source to match the increased load demand during peak hours in the evening and brought the national power system back to a stable operating state.

NSMO will continue to closely monitor the operation of the power system, strengthen supervision and closely coordinate with relevant units to proactively respond, ensuring the national power system is operated safely, continuously and reliably.

Source: https://hanoimoi.vn/nhanh-chong-xu-ly-su-co-tram-bien-ap-phia-nam-cap-dien-tro-lai-binh-thuong-700112.html