3D彩票

电工基础知识
发布时间:2016-06-28 11:29:58 阅读:人次
1、油浸变压器有哪些主要部件? 

DA:BIANYAQIDEZHUYAOBUJIANYOU:TIEXIN、RAOZU、YOUXIANG、YOUZHEN、HUXIQI、FANGBAOGUAN、SANREQI、JUEYUANTAOGUAN、FENJIEKAIGUAN、QITIJIDIANQI、WENDUJI、JINGYOUDENG。

3D彩票2、SHENMEJIAOQUANJUEYUANBIANYAQI?SHENMEJIAOBANJUEYUANBIANYAQI?

答:半绝缘就是变压器的*近中性点部分绕组的主绝缘,其绝缘水平比端部绕组的绝缘水平低,而与此相反,一般变压器首端与尾端绕组绝缘水平一样叫全绝缘。

3、变压器在电力系统中的主要作用是什么?

DA:BIANYAQIZHONGDIANLIXITONGZHONGDEZUOYONGSHIBIANHUANDIANYA,YILIYUGONGLVDECHUANSHU。DIANYAJINGSHENGYABIANYAQISHENGYAHOU,KEYIJIANSHAOXIANLUSUNHAO,TIGAOSONGDIANDEJINGJIXING,DADAOYUANJULISONGDIANDEMUDE。ERJIANGYABIANYAQIZENENGBAGAODIANYABIANWEIYONGHUSUOXUYAODEGEJISHIYONGDIANYA,MANZUYONGHUXUYAO。

3D彩票4、TAOGUANLIEWENYOUSHENMEWEIHAIXING?

答:套管出现裂纹会使绝缘强度降低,能造成绝缘的进一步损坏,直至全部击穿。裂缝中的水结冰时也可能将套管胀裂。可见套管裂纹对变压器的安全运行是很有威胁的。

5、高压断路器有什么作用?

DA:GAOYADUANLUQIBUJINKEYIQIEDUANHEJIETONGZHENGCHANGQINGKUANGXIAGAOYADIANLUZHONGDEKONGZAIDIANLIUHEFUHEDIANLIU,HAIKEYIZAIXITONGFASHENGGUZHANGSHIYUBAOHUZHUANGZHIJIZIDONGZHUANGZHIXIANGPEIHE,XUNSUQIEDUANGUZHANGDIANLIU,FANGZHISHIGUKUODA,BAOZHENGXITONGDEANQUANYUNXING。

6、ZUBOQIYOUSHENMEZUOYONG?

3D彩票DA:ZUBOQISHIZAIBOTONGXINJIGAOPINBAOHUBUKEQUESHAODEGAOPINTONGXINYUANJIAN,TAZUZHIGAOPINDIANLIUXIANGQITAFENZHIXIELOU,QIJIANSHAOGAOPINNENGLIANGSUNHAODEZUOYONG。

7、DIANLIUHUGANQIYOUSHENMEZUOYONG?

DA:DIANLIUHUGANQIBADADIANLIUANYIDINGBILIBIANWEIXIAODIANLIU,TIGONGGEZHONGYIBIAOSHIYONGHEJIDIANBAOHUYONGDEDIANLIU,BINGJIANGERCIXITONGYUGAODIANYAGELI。TABUJINBAOZHENGLERENSHENHESHEBEIDEANQUAN,YESHIYIBIAOHEJIDIANQIDEZHIZAOJIANDANHUA、BIAOZHUNHUA,TIGAOLEJINGJIXIAOYI。

8、DIANLIUHUGANQIYOUNAJIZHONGJIEXIANFANGSHI?

3D彩票DA:DIANLIUHUGANQIDEJIEXIANFANGSHI,YOUSHIYONGLIANGGEDIANLIUHUGANQILIANGXIANGVXINGJIEXIANHELIANGXIANGDIANLIUCHAJIEXIAN;YOUSHIYONGSANGEDIANLIUHUGANQIDESANXIANGYXINGJIEXIAN、SANXIANGΔXINGJIEXIANHELINGXUJIEXIAN。

3D彩票9、DIANLIXITONGZHONGDEWUGONGDIANYUANYOUJIZHONG?

答:电力系统中的无功电源有:①同步发电机;②调相机;③并联补偿电容器;④串联补偿电容器;⑤静止补偿器。

10、为什么要在电力电容器与其断路器之间装设一组ZnO避雷器?

答:装设ZnO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。
 

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