The Zaporizhzhia Nuclear Power Plant (ZNPP) was disconnected from its last main power line; electricity is supplied via a backup line. Also, one of the two operating power units was turned off again.
Quote: “The Ukrainian Zaporizhzhia Nuclear Power Station (ZNPP) has again lost contact with the last main external power transmission line, but the facility continues to supply electricity to the grid via a backup line.”
Details: Ukrainian personnel informed IAEA experts that the fourth 750-kilovolt power line was out of order. Three more were lost earlier during the war.
Electricity (from the ZNPP) is supplied by a 330/750 KW backup line connecting the facility to the adjacent thermal power plant. The same line can provide backup power to the ZNPP if necessary, the IAEA noted.
“In addition, the station management informed the IAEA team that one of the two operating units of the ZNPP was disconnected on Saturday afternoon due to grid restrictions. The same fifth power unit was also disconnected on 1 September — the day Director General Grossi arrived at the facility — due to an internal power failure, but the next day it was reconnected,” the agency said.
They added that one power unit is still operating.
Source: Ukrainian pravda