题目内容 (请给出正确答案)
[主观题]

The nameplate of an AC non-synchronous motor shows that running speed is 1460r/minfrequenc

y 50HzYou can infer that the number of magnetic poles is .

A.2

B.4

C.6

D.8

查看答案
如搜索结果不匹配,请 联系老师 获取答案
您可能会需要:
您的账号:,可能会需要:
您的账号:
发送账号密码至手机
发送
更多“The nameplate of an AC non-syn…”相关的问题

第1题

压力计()。

A.manometer

B.Manhole

C.nameplate

D.nut

点击查看答案

第2题

As nameplate companies like Toyota and Toshiba accelerate the shift of their business

A.checked

B.quickened

C.left

D.eliminated

点击查看答案

第3题

As nameplate companies like Toyata and Toshiba accelerate the shift of their business

A.in the cold

B. in the air

C. in the black

D. in the blood

点击查看答案

第4题

“380V/220V Y/△” noted on the nameplate of a non-synchronous motor means that .A.the armatu

“380V/220V Y/△” noted on the nameplate of a non-synchronous motor means that .

A.the armature terminals of the motor should be connected in star formation when voltage of power supply is 380

B.the armature terminals of the motor should be connected in star formation when voltage of power supply is 220

C.both A and B are correct

D.the armature terminals of the motor should be connected in reverse ways of A and B

点击查看答案

第5题

The operator of electrical motors should keep a constant check on the loads they carry bec
ause _____.

A.low loads necessitate frequent insulation cleaning

B.exceeding nameplate values shortens useful life

C.energy is wasted if full loading is not utilized

D.power factor correction methods are load dependent

点击查看答案

第6题

某电动机已知其铭牌数据为:PN=13kW,UN=220V,ηN=0.86,nN=3000r/min。那么该直流电动机额定电流IN为The nameplate data of a motor is known as: PN = 13kw, UN = 220V, η n = 0.86, NN = 3000r / min. Then the rated current of the DC motor in is ()

A.68.7A

B.59.1A

C.70A

D.75A

点击查看答案
热门考试 全部 >
相关试卷 全部 >
账号:
你好,尊敬的上学吧用户
发送账号至手机
密码将被重置
获取验证码
发送
温馨提示
该问题答案仅针对搜题卡用户开放,请点击购买搜题卡。
马上购买搜题卡
我已购买搜题卡, 登录账号 继续查看答案
重置密码
确认修改
谢谢您的反馈

您认为本题答案有误,我们将认真、仔细核查,
如果您知道正确答案,欢迎您来纠错

警告:系统检测到您的账号存在安全风险

为了保护您的账号安全,请在“上学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!

微信搜一搜
上学吧
点击打开微信
警告:系统检测到您的账号存在安全风险
抱歉,您的账号因涉嫌违反上学吧购买须知被冻结。您可在“上学吧”微信公众号中的“官网服务”-“账号解封申请”申请解封,或联系客服
微信搜一搜
上学吧
点击打开微信