Arc extinguishing device in secondary distribution box
The arc suppression cabinet adopts the mode of fail-over to eliminate the arc hazard caused by SLG fault. Passive arc suppression element is widely used in distribution network due to its advantages of good reliability, low control complexity and good economic benefit. Active voltage arc suppression can flexibly control the zero-sequence voltage by adding a reverse voltage to control the fault point voltage lower than the reburning voltage of the fault arc and force the fault arc to extinguish itself. , ICThe current for full ground-current compensation The flowing current through leakage of transformers U.
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