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id="ckepop"></div></td></tr></table><div id="Content" style="display:none;">[电气百科:电气行业常用知识问?0项,查漏补缺就现在]:在实际的电工作业中,大家总能遇到各种各样的问题,有实际操作的技术问题,也有理论知识的基础问题,今天给大家总结了电工作业中经常能遇到的问题20个,并附上了相应的答案,大家一起来看看吧!1、电力系统中的无...</div><div id="yjk4r1w4j" class="brand_news_con"><p style="text-indent:2em;"> 在实际的电工作业中,大家总能遇到各种各样的问题,有实际操作的技术问题,也有理论知识的基础问题,今天给大家总结了电工作业中经常能遇到的问题20个,并附上了相应的答案,大家一起来看看吧! </p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> 1、电力系统中的无功电源有几种?</p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> 电力系统中的无功电源有: </p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> 1、同步发电机 </p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> 2、调相机 </p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> 3、并联补偿电容器 </p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;">pkʰͶע 4、串联补偿电容器 </p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> 5、静止补偿器 </p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> 2、电流互感器有什么用途? </p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> 电流互感器把大电流按一定比例变为小电流,提供各种仪表使用和继电保护用的电流,并将二次系统与高压隔离。它不仅保证了人身和设备的安全,也使仪表和继电器的制造简单化、标准化,提高了经济效益?</p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> 3、为什么要在电力电容器与其断路器之间装设一组避雷器?</p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> 装设避雷器可以防止电力电容器在拉、合操作时可能出现的操作过电压,保证电气设备的安全运行?</p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> 4、电流互感器有哪几种接线方式?</p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> 电流互感器的接线方式,有使用两个电流互感器两相V形接线和两相电流差接线;有使用三个电流互感器的三相Y形接线、三相△形接线和零序接线?</p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> 5、为什么电压互感器和电流互感器的二次侧必须接地?</p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> 电压互感器和电流互感器的二次侧接地属于保护接地。因为一、二、次侧绝缘如果损坏,一次侧高压串到二次侧,就会威胁人身和设备的安全,所以二次侧必须接地?</p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> 6、并联电抗器和串联电抗器各有什么作用? </p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> 线路并联电抗器可以补偿线路的容性充电电流,限制系统电压升高和操作过电压的产生,保证线路的可靠运行?</p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> 母线串联电抗器可以限制短路电流,维持母线有较高的残压。而电容器组串联电抗器可以限制高次谐波,降低电抗?</p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> 7、单母线分段的接线方式有什么特点? </p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> 单母线分段接线可以减少母线故障的影响范围,提高供电的可靠性。当一段母线有故障时,分段断路器在继电保护的配合下自动跳闸,切除故障,使非故障母线保持正常供电。对于重要用户,可以从不同的分段上取得电源,保证不中断供电?</p> <p style="text-indent:2em;"> </div><div id="yjk4r1w4j" class="meneame"><span class="disabled">< </span><span class="current">1</span> <a href="AD100904133_2.html">2</a><a href="AD100904133_3.html">3</a></div> <div id="yjk4r1w4j" style="text-align: center;padding-top: 10px;"><img src="/images/code.jpg" alt="关注有惊?" /></div> <div id="yjk4r1w4j" 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