皮皮学,免费搜题
登录
搜题
【简答题】
三台具有相同变比和连接组别的三相变压器,其额定容量和短路电压分别为:Sa=1000kVA;Uka%=6.25%;Sb=1800kVA;Ukb=6.6%;Sc=3200kVA;Ukc=7%。将它们并联运行后带负载S=5500kVA。求: 1、每台变压器分配的负荷? 2、三台变压器在不允许任何一台过负荷的情况下,能担负多少最大总负荷? 3、变压器总的设备容量的利用率?
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【单选题】What does “network solo” mean?
A.
To socialize alone.
B.
To get on the net.
C.
To play game together.
D.
To have net meeting.
【单选题】______ has been the most enthusiastic supporter of the Kyoto Treaty.
A.
The European Union
B.
The United States
C.
Russia
D.
Japan
【单选题】What do we know about the author and her solo travel?
A.
She isn’t susceptible to any dangerous situations.
B.
It is very hard for the author to make the decision to travel alone.
C.
Only a few of her friends share her dream of exploring China.
D.
Her travel proves to be worthwhile despite unpleasant experiences.
【单选题】What do we know about the author and her solo travel?
A.
She isn't susceptible to any dangerous situations.
B.
Only a few of her friends share her dream of exploring China.
C.
It is very hard for the author to make the decision to travel alone.
D.
Her travel proves to be worthwhile despite unpleasant experiences.
【简答题】A.A supporter of free global trade. B.A member of the Food Commission. C.A supporter of First World food markets. D.A member of an energy development group.
【单选题】日常生活行为依赖扶手、拐杖、轮椅和升降等设施帮助的老年人为()。
A.
自理老人
B.
介助老人
C.
介护老人
D.
残疾老人
【判断题】在加工中心上使用刀库主要有两种,一种是盘式刀库,一种是链式刀库。
A.
正确
B.
错误
【单选题】日常生活行为依赖扶手、拐杖、轮椅和升降等设施帮助的老年人为( )。
A.
自理老人
B.
介助老人
C.
介护老人
D.
残疾老人
【简答题】What kinds of places are recommended for solo travelers?
【单选题】21-三体综合征最常见的表现是( )
A.
贫血
B.
智力低下
C.
色盲
D.
佝偻病
E.
白化病
相关题目: