问题
问答题
一台直流他励电动机,PN=30 kW,UN=440V,nN=1000 r/min,IN=78A,电枢电阻Ra=0.35Ω,
若限制起动电流不超过800A,采用电枢串电阻起动法,最少应串入多大起动电阻?
答案
参考答案:
一台直流他励电动机,PN=30 kW,UN=440V,nN=1000 r/min,IN=78A,电枢电阻Ra=0.35Ω,
若限制起动电流不超过800A,采用电枢串电阻起动法,最少应串入多大起动电阻?
参考答案:
完形填空。 | ||||
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