Power supply in Barisal, Khulna, Rajshahi and Rangpur was restored on Tuesday after five hours suspension due to a grid failure on Monday night.
The power supply disruption occurred as the national grids of Ghorashal-Ishwardi and Ashuganj-Sirajganj electricity transmission lines were damaged.
Power Grid Company of Bangladesh (PGCB) formed a four-member probe committee led by its Chief Engineer Kamrul Hassan to look into the matter. The committee was asked to submit the report within five days.
Seeking anonymity, an official of PGCB told the Dhaka Tribune that the Ashuganj-Sirajganj transmission line tower was damaged in Meghna River in Bhairab on Monday night which caused overload in Ghorashal-Ishwardi line.
The Ghorashal-Ishwardi line tripped at 11:20am on Tuesday as it was overloaded and 22 power plants of around 2000MW shut down automatically, said the official.
He also said that a total of 212MV electricity was being transmitted through Ghorashal-Ishwardi line though its capacity is 170MV because of the damage in Ashuganj-Sirajganj line.
The western region of Bangladesh gets power supply from these two 230kV each transmission lines.
Later, the power supply was resumed when the transmission line was restored.
A PGCB source said the Ashuganj-Sirajganj 230kV line is still closed and it may cause load-shedding in different areas.
Masum-Al-Beruni, managing director of PGCB, said: “The power was interrupted in country’s western, northern and southern regions as the transmission lines were damaged but the power supply is normal in most of the areas now.”
Zakiul Islam, managing director of North West Zone Power Distribution Company Limited, said: “Power supply of Rajshahi and Rangpur divisions became normal from 2pm, Tuesday.”
Md Shafique Uddin, managing director of West Zone Power Distribution Company Limited, said: “Power was interrupted in 21 districts of south-western region. Tension grew up among people as it happened without notice. But the power supply became normal after a few hours.”
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