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B.2.2 充電設備的輸出電壓
Uc=nUcm (B.2.2-1)
式中 n--蓄電池個數(shù)；
Ucm--充電末期每個電池電壓(V)(鉛酸蓄電池為2.70V，鎘鎳蓄電池為 1.70V)。
B.3 蓄電池組個數(shù)選擇
B.3.1 有端電池
按事故放電末期電壓選擇
式中Ue--直流系統(tǒng)額定電壓(V)；
Ufm--事故放電末期每個蓄電池電壓(V)(發(fā)電廠取1.75V，變電所取1.95V)；
Ucm--充電末期每個蓄電池電壓(V)(鉛酸蓄電池為2.70V，鎘鎳蓄電池為 1.70V)；
n--蓄電池組個數(shù)；
n0--基本電池數(shù)；
nd--端電池個數(shù)。
B.3.2 無端電池
按浮充電運行時選擇為：
 (B.3.2-1)
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