[单选题]关于励磁电抗,说法正确的是( )。(0.5)
发布时间:2025-11-29
A.电源电压增大时,励磁电抗增大
B.变压器短路时,励磁电抗减小
C.铁心质量好,励磁电抗小
D.电源频率增大时,励磁电抗增大
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