單項(xiàng)選擇題小型光伏電站當(dāng)光伏電站并網(wǎng)點(diǎn)頻率超過(guò)49.5Hz~50.2Hz范圍時(shí),應(yīng)在多長(zhǎng)時(shí)間停止向電網(wǎng)線路送電?()

A.0.2s
B.0.3s
C.0.4s
D.0.5s


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