三相对称电路,△连接时,线电压UL与相电压UP的关系为(____)。
AUL=3UP$;$UL=√3UP$;$UL= 2UP$;$UL=UP
BUL=3UP$;$UL=√3UP$;$UL= 2UP$;$UL=UP
CUL=3UP$;$UL=√3UP$;$UL= 2UP$;$UL=UP
DUL=3UP$;$UL=√3UP$;$UL= 2UP$;$UL=UP
AUL=3UP$;$UL=√3UP$;$UL= 2UP$;$UL=UP
BUL=3UP$;$UL=√3UP$;$UL= 2UP$;$UL=UP
CUL=3UP$;$UL=√3UP$;$UL= 2UP$;$UL=UP
DUL=3UP$;$UL=√3UP$;$UL= 2UP$;$UL=UP