成考院校在线答案
- 2022-09-12 [单选] 18、利用P—Q分解法和牛顿—拉夫逊法进行潮流计算，二者的收敛速度是（ ）
- 2022-09-12 [单选] <p class="MsoNormal" style="margin-left:14.15pt;text-indent:-14.15pt; mso-char-indent-count:-1.35;line-height:20.0pt;mso-line-height-rule:exactly; tab-stops:191.4pt">6、<span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">已知一节点所带负荷，有功功率为</span><span lang="EN-US">P</span><span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">，视在功率为</span><span lang="EN-US">S</span><span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">，则功率因数角</span><span lang="EN-US"><span style="position:relative; top:5.0pt;mso-text-raise:-5.0pt"> <v:shape id="对象_x0020_61" o:spid="_x0000_i1027" type="#_x0000_t75" style="width:10.2pt;height:12pt" o:ole=""> <v:imagedata src="DLXTFX_DX.files/image008.wmz" o:title=""></v:imagedata> </v:shape></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.3" ShapeID="对象_x0020_61" DrawAspect="Content" ObjectID="_1618985935"> </o:OLEObject> </xml><![endif]--></span><span style="font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">为（ ）</span><span lang="EN-US"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:20.0pt;mso-line-height-rule:exactly">14、<span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";color:windowtext">系统中无功功率不足，会造成（</span><span lang="EN-US" style="color:windowtext"><span style="mso-spacerun:yes"> </span></span><span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";color:windowtext">）。</span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="margin-left:14.15pt;text-indent:-14.15pt; mso-char-indent-count:-1.35;line-height:20.0pt;mso-line-height-rule:exactly; tab-stops:191.4pt">1、<span style="font-family:宋体">三绕组变压器的分接头，一般装在（ <span class="GramE"> </span>）<span lang="EN-US"> <o:p></o:p></span></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" align="left" style="text-align:left;line-height:20.0pt; mso-line-height-rule:exactly">38、<span style="font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";color:windowtext">下列故障形式中对称的短路故障为（</span><span lang="EN-US" style="color:windowtext"><span style="mso-spacerun:yes"> </span></span><span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";color:windowtext">）</span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:20.0pt;mso-line-height-rule:exactly">9、<span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";color:windowtext">供电系统短路故障中，短路危害最大的短路类型一般为（</span><span lang="EN-US" style="color:windowtext"><span style="mso-spacerun:yes"> </span></span><span style="font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; color:windowtext">）。</span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:20.0pt;mso-line-height-rule:exactly">15、<span style="font-family:Microsoft Yahei;color:windowtext">在负序网络中，负序阻抗与正序阻抗不相同的是（）</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoPlainText" style="margin-left:21.1pt;text-indent:-21.1pt; mso-char-indent-count:-2.01;line-height:20.0pt;mso-line-height-rule:exactly">5、<span style="mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-bidi-font-family:"Times New Roman";color:windowtext">减小输电线路有功损耗可通过（</span><span lang="EN-US" style="font-family:"Times New Roman",serif;color:windowtext"><span style="mso-spacerun:yes"> </span></span><span style="mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-bidi-font-family:"Times New Roman";color:windowtext">）</span><span lang="EN-US" style="font-family:"Times New Roman",serif;color:windowtext"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoPlainText" style="margin-left:21.1pt;text-indent:-21.1pt;">40、 <span style="color:windowtext;">用功率和阻抗表示的电压降落<span class="GramE">纵</span>分量的表达式为（</span><span style="font-family:"color:windowtext;"><span> </span></span><span style="color:windowtext;">）</span><span style="font-family:"color:windowtext;"> </span> </p>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:20.0pt;mso-line-height-rule:exactly">16、<span style="mso-bidi-font-size:10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:Arial; mso-hansi-font-family:Arial;mso-bidi-font-family:Arial;mso-font-kerning:0pt">对于三个单相变压器组成的三相变压器组，不对称短路分析时，对励磁电抗的处理方法是（</span><span style="mso-bidi-font-size:10.5pt;font-family:"Arial",sans-serif;mso-font-kerning: 0pt"> </span><span style="mso-bidi-font-size:10.5pt;font-family:Microsoft Yahei; mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family: Arial;mso-font-kerning:0pt">）。</span><span style="mso-bidi-font-size:10.5pt; font-family:"Arial",sans-serif;mso-font-kerning:0pt"> </span></p>