Major cities across Pakistan, including Islamabad, Karachi, Lahore, Multan, Peshawar Quetta, and others plunged into darkness on Saturday after a massive power breakdown.
"When a large plant trips, the voltage, and frequency drops instantly. Plants that are on the system, are designed to automatically open breakers and isolate themselves to avoid damage. Now they will have to bring them back one by one," an anonymous WAPDA source told Business Recorder.