当采用两相电流差接线方式时，保护范围与短路类型和短路相别有关。
The protect range is relational to short circuit type and phase when phase differential current connection mode is adopted.
同时具有较好的负载适应性，在各种情况下，各逆变电源的输出电流差小于额定电流的2%。
Under all conditions, the difference of output current between inverters is less than 2 % of rated current.
研究表明相电流差突变量、稳态电流序分量等选相元件在发生某些跨线及转换性故障时会误选相。
The fault phase selectors, including the phase current difference suddenly-change and the sequence current, may misoperate in some cross country faults and conversion faults.
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