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2012年7月30日和31日,印度北部电网和东部、北部、东北电网相继发生大面积停电事故,波及印度22个邦(印度共28个邦),成为全球历史上规模最大的停电事故之一。根据印度国家调度中心公布的初步调查,7月30日大停电事故的直接原因是,北部电网当日凌晨宾纳一华利尔一阿格拉(Bina-Gwalior-Agra)段400千伏线路由于严重过载出现跳闸,该电力故障引发连锁反应最终引发大面积停电。7月31日,在印度北部部分邦恢复供电数小时后,北部电网出现电压振荡,并再次导致电力灾难,北部、东部及东北部3个大区电网共同
On July 30 and 31, 2012, a large-scale power outage occurred in the grid in the north of India and in the grid in the east, north and northeast, affecting 22 Indian states (28 states in India), becoming the largest power outage in the history of the world one. According to a preliminary survey released by India’s National Dispatch Center, the direct cause of the blackout on July 30 was that the 400-kilovolt line at Bina-Gwalior-Agra in the northern part of the grid on that day was severely overloaded Trip occurs, the power failure caused a chain reaction eventually lead to large-scale blackouts. On July 31, a few hours after restoration of power supply in parts of northern India, a voltage surge occurred in the northern grid and once again led to a power catastrophe in which three major grids in the north, east and north-east shared