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1、1/15 国家职业资格考试-初级维修电工试卷1 红色答案代表正确的参考答案，1、电气图包括:电路图、功能表图和）等。系统图和框图部件图元件图装配图2、电路图是根据 ）来详细表达其内容的。逻辑图位置图功能表图系统图和框图3、电气图形符号的形式有）种。1 2 3 4 4、电力拖动电气原理图的识读步骤的第一步是）。看用电器看电源看电气控制元件看辅助电器5、若将一段电阻为R的导线均匀拉长至原来的两倍，则其电阻值为）。2R R/2 4R R/4 6、电流的方向就是）。负电荷定向移动的方向电子定向移动的方向正电荷定向移动的方向正电荷定向移动的相反方向2/15 7、一直流电通过一段粗细不均匀的导体时，导体各
2、横截面上的电流强度）。与各截面面积成正比与各截面面积成反比与各截面面积无关随截面面积变化面变化8、关于电位的概念，）的说法是正确的。电位就是电压电位是绝对值电位是相对值参考点的电位不一定等于零9、一个电阻接在内阻为0.1、电动势为1.5V 的电源上时，流过电阻的电流为1A，则该电阻上的电压等于）V1 1.4 1.5 0.1 10、电阻 R1，R2，R3串联后接在电源上，若电阻上的电压关系是U1U3U2，则三个电阻值之间的关系是）。R1R2 R3 R1R3R2 R1R3 R2 R1R2 R3 11、在交流电路中 ）平均值。电压才有电动势才有电流才有电压、电动势、电流都有12、在 B=0.4Wb/
3、m2的匀强磁场中，放一根长L=0.5m，I=5A 的载流直导体，导体与磁场方向垂直，导体受到的力是1N 0N 2N 0.2N 13、线圈中自感电动势的大小与线圈）无关。电流的变化率文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:
4、CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 H
5、I2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 Z
6、O3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编
7、码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7
8、 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10
9、 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J33/15 匝数电阻周围的介质14、常用电工指示仪表按工作原理分类，主要有）类。3 4
10、 5 6 15、磁电系仪表的特点是）。只能测直流只能测交流只能测脉动直流既可测直流，又可测交流16、下列工具中，属于常用低压绝缘基本安全用具的是）。电工刀低压验电器绝缘棒防护眼镜17、选择兆欧表的原则是）。兆欧表额定电压要大于被测设备工作电压一般都选择1000V 的兆欧表选用准确度高、灵敏度高的兆欧表兆欧表测量范围与被测绝缘电阻的范围相适应18、绝缘油中用量最大、用途最广的是）。桐油硅油变压器油亚麻油19、磁性材料中矫顽力最大、磁能积最大的是）。硅钢片铁镍合金铁铝合金稀土钴硬磁材料文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7
11、 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10
12、 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文
13、档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7
14、A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K
15、10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J
16、3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6
17、O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J34/15 20、变压器在传输电功率的过程中仍然要遵守）。电磁感应定律动量守恒定律能量守恒定律阻抗变换定律21、关于变压器，下列说法错误的是）。变压器是一种静止的电气设备变压器用来变换电压变压器可以变换阻抗变压器可以改变频率22、电压互感器实质是一台）。电焊变压器自耦变压器降压变压器升压变压器23、三相变压器的连接组别可以说明）。原边线电压与副边线电压的相位关系原边线电压与副边
18、线电压的倍数关系原边相电压与副边相电压的倍数关系原边线电流与副边线电流的倍数关系24、单相变压器并联运行时必须满足的条件之一是）。原、副边电压相等负载性质一样负载大小一样容量必须相等25、三相交流异步电动机额定转速）。大于同步转速小于同步转速等于同步转速小于转差率26、改变电容式单相异步电动机的转向方法是）。主、副绕组对调文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A
19、7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K1
20、0 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3
21、文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O
22、7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1
23、K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3
24、J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J
25、6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J35/15 电源相线与零线对调电容器接线对调主绕组或副绕组中任意一个首尾对调27、八极三相异步电动机的定子圆周对应的电角度为）。360 1080 1440 2880 28、交流三相异步电动机Z=24，m=32，P=4，则每极每相的槽数为）。8 槽2 槽4 槽6 槽29、交流发电机的文字符号是）。G GD GA GE 30、控制变压器文字符号是）。TC TM TA TR 31、欲控制容量为3kW三相异步电动机通断，若选脱扣器额定电流Ir=6.5A、型号为 DZ520/330 自动空气开关进制，）安装熔断器作为短路保护。需要不需要可装也可不
26、视环境确定是否32、直流接触器的铁心不会产生）损耗。涡流和磁滞短路涡流空载文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7
27、HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10
28、ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档
29、编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A
30、7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K1
31、0 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3
32、文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J36/15 33、过电流继电器主要用于）的场合，作为电动机或主电路的过载和短路保护。不频繁起动和重载起动频繁起动和重载起动频繁起动和轻载起动轻载起动和不频繁起动34、电压继电器按实际使用要求可
33、分为）类。2 3 4 5 35、在工业中应用最广的金属电阻器，其结构形式主要有）。金属膜电阻器和金属氧化膜电阻器固定电阻和可变电阻无骨架螺旋式、瓷管式、瓷盘式、框架式、铁片栅电阻元件和频敏变阻器碳膜电阻和线绕电阻36、一般热继电器的热元件按电动机额定电流来选择电流等级，其整定值为）In。0.3 0.5 0.95 1.05 1.2 1.3 1.3 1.4 37、三相鼠笼式异步电动机，可以采用定子串电阻降压起动，由于它的主要缺点是），所以很少采用此方法。产生的起动转矩太大产生的起动转矩太小起动电流过大起动电流在电阻上产生的热损耗过大38、三相电动机自耦降压起动器以80%的抽头降压起动时，电动机的起
34、动转矩是全压起动转矩的）%。36 64 70 81 39、三相鼠笼式异步电动机，当采用延边三角形起动时，每相绕组的电压）。比 Y起动时大，比全压起动时小文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI
35、2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO
36、3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码
37、:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7
38、HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10
39、ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档
40、编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J37/15 等于全压起动时的电压是全压起动时的3 倍是全压起动时的1/3 倍40、反接制动电流一般为电动机额定电流
41、的）倍。4 6 8 10 41、三相异步电动机能耗制动时，电动机处于）运行状态。电动发电起动调速42、三相异步电动机采用能耗制动时，当切断电源后，将）。转子回路串入电阻定子任意两相绕组进行反接转子绕组进行反接定子绕组送入直流电43、对于三相鼠笼式异步电动机的多地控制，须将多个起动按钮并联，多个停止按钮），才能达到要求。串联并联自锁混联44、起重机上提升重物的绕线式异步电动机起动方法用）。定子接三相调压器法转子串起动电阻法定子串起动电阻法转子串频敏变阻器法45、日光灯的工作原理是）。辉光放电电流的热效应电流的磁效应光电效应文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3
42、I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E
43、2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6
44、Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2
45、Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ
46、3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2
47、W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3
48、V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J38/15 46、当高压钠灯接入电源后，电流经过镇流器、热电阻、双金属片常闭触头而形成通路，此时放电管中）。电流极大电流较大电流较小无电流47、工厂电气照明按供电方式分为）种。2 3 4 5 48、电压互感器的二次线圈有一点接地，此接地应称为）。重复接地工作接地保护接地防雷接地49、保护接地的主要作用是）和减少流经人身的电流。防止人身触电
49、减少接地电流降低接地电压短路保护50、保护接零适用于）系统。IT TT TN IT TT 51、在共发射极放大电路中，静态工作点一般设置在）。直流负载线的上方直流负载线的中点上交流负载线的下方交流负载线的中点上52、在共发射极放大电路中，若静态工作点设置过低，易产生）。饱和失真文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I
50、3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2J6O7A7 HI2W6Y3G1K10 ZO3V2Y3I3J3文档编码:CQ3E2