<p><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">101</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">、巡视设备时应遵守哪些规定?<span lang="EN-US"><br/></span>答:巡视设备时应遵守的规定有:<span lang="EN-US"><br/></span> (<span lang="EN-US">1</span>)不得进行其他工作,不得移开或越过遮栏。<span lang="EN-US"><br/></span> (<span lang="EN-US">2</span>)雷雨天需要巡视户外设备时,应穿绝缘靴,不得接近避雷针和避雷器。<span lang="EN-US"><br/></span> (<span lang="EN-US">3</span>)高压设备发生接地时,室内不得接近故障点<chmetcnv unitname="m" sourcevalue="4" hasspace="False" negative="False" numbertype="1" tcsc="0" wst="on"></chmetcnv><span lang="EN-US">4m</span><chmetcnv></chmetcnv>以内,室外不得<span lang="EN-US">*</span>近故障点<chmetcnv unitname="m" sourcevalue="8" hasspace="False" negative="False" numbertype="1" tcsc="0" wst="on"></chmetcnv><span lang="EN-US">8m</span><chmetcnv></chmetcnv>以内,进入上述范围人员必须穿绝缘靴,接触设备外壳或构架时应戴绝缘手套。<span lang="EN-US"><br/></span> (<span lang="EN-US">4</span>)巡视高压室后必须随手将门锁好。<span lang="EN-US"><br/></span> (<span lang="EN-US">5</span>)特殊天气增加特巡。<br/></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><span lang="EN-US">102</span>、变压器气体继电器的巡视项目有哪些?<span lang="EN-US"><br/></span>答:变压器气体继电器的巡视项目有:<span lang="EN-US"><br/></span> (<span lang="EN-US">1</span>)气体继电器连接管上的阀门应在打开位置。<span lang="EN-US"><br/> </span>(<span lang="EN-US">2</span>)变压器的呼吸器应在正常工作状态。<span lang="EN-US"><br/></span> (<span lang="EN-US">3</span>)瓦斯保护连接片投入正确。<span lang="EN-US"><br/></span> (<span lang="EN-US">4</span>)检查油枕的油位在合适位置,继电器应充满油。<span lang="EN-US"><br/></span> (<span lang="EN-US">5</span>)气体继电器防水罩应牢固。<span lang="EN-US"> <br/>103</span>、电压互感器正常巡视项目有哪些?<span lang="EN-US"><br/></span>答:电压互感器正常巡视的项目有:<span lang="EN-US"><br/></span> (<span lang="EN-US">1</span>)瓷件有无裂纹损坏或异音放电现象。<span lang="EN-US"><br/></span> (<span lang="EN-US">2</span>)油标、油位是否正常,是否漏油。<span lang="EN-US"><br/></span> (<span lang="EN-US">3</span>)接线端子是否松动。<span lang="EN-US"><br/></span> (<span lang="EN-US">4</span>)接头有无过热变色。<span lang="EN-US"><br/></span> (<span lang="EN-US">5</span>)吸潮剂是否变色。<span lang="EN-US"><br/></span> (<span lang="EN-US">6</span>)电压指示无异常。<span lang="EN-US"> <br/>104</span>、避雷器有哪些巡视检查项目?<span lang="EN-US"><br/></span> 答:避雷器巡视检查项目有:<span lang="EN-US"><br/></span> (<span lang="EN-US">1</span>)检查瓷质部分是否有破损、裂纹及放电现象。<span lang="EN-US"><br/></span> (<span lang="EN-US">2</span>)检查放电记录器是否动作。<span lang="EN-US"><br/></span> (<span lang="EN-US">3</span>)检查引线接头是否牢固。<span lang="EN-US"><br/></span> (<span lang="EN-US">4</span>)检查避雷器内部是否有异常音响。<span lang="EN-US"> <br/>105</span>、母线的巡视检查项目有哪些?<span lang="EN-US"><br/></span>答:母线巡视检查项目有:<span lang="EN-US"><br/></span> (<span lang="EN-US">1</span>)各接触部分是否接触良好,试温蜡片是否熔化。<span lang="EN-US"><br/></span> (<span lang="EN-US">2</span>)检查软母线是否有断股、散股现象。<span lang="EN-US"><br/></span> (<span lang="EN-US">3</span>)每次接地故障后,检查支持绝缘子是否有放电痕迹。<span lang="EN-US"><br/></span> (<span lang="EN-US">4</span>)大雪天应检查母线的积雪及融化情况。<span lang="EN-US"><br/></span> (<span lang="EN-US">5</span>)雷雨后应检查绝缘子是否有破损、裂纹及放电痕迹。<span lang="EN-US"><br/></span> (<span lang="EN-US">6</span>)大风前应清除杂物。<span lang="EN-US"> <br/>106</span>、电力电缆有哪些巡视检查项目?<span lang="EN-US"><br/></span> 答:电力电缆巡视检查项目有:<span lang="EN-US"> <br/></span> (<span lang="EN-US">1</span>)检查电缆及终端盒有无渗漏油,绝缘胶是否软化溢出。<span lang="EN-US"><br/></span> (<span lang="EN-US">2</span>)绝缘子是否清洁完整,是否有裂纹及闪络痕迹,引线接头是否完好不发热。<span lang="EN-US"><br/></span> (<span lang="EN-US">3</span>)外露电缆的外皮是否完整,支撑是否牢固。<span lang="EN-US"><br/></span> (<span lang="EN-US">4</span>)外皮接地是否良好。<span lang="EN-US"> <br/>107</span>、主控制室、继电保护室内及<span lang="EN-US">10</span>(<span lang="EN-US">6</span>)<span lang="EN-US">kV</span>配电室内设备正常巡视有哪些项目?<span lang="EN-US"><br/></span> 答:室内设备正常巡视项目有:<span lang="EN-US"><br/></span> (<span lang="EN-US">1</span>)无异音和焦味。<span lang="EN-US"><br/></span> (<span lang="EN-US">2</span>)所有仪表、信号、指示灯窗均应与运行状况相一致,指示正确。<span lang="EN-US"><br/></span> (<span lang="EN-US">3</span>)保护连接片位置正确(应与实际相符合)。<span lang="EN-US"><br/></span> (<span lang="EN-US">4</span>)系统三相电压平衡(近似),并在规定的范围。<span lang="EN-US"><br/></span> (<span lang="EN-US">5</span>)电源联络线、变压器主开关的三相电流表近似平衡。<span lang="EN-US"> <br/>108</span>、变压器缺油对运行有什么危害?<span lang="EN-US"><br/></span> 答:变压器油面过低会使轻瓦斯动作;严重缺油时,铁芯和绕组暴露在空气中容易受潮,并可能造成绝缘击穿。<span lang="EN-US"> 109</span>、强迫油循环变压器停了油泵为什么不准继续运行?<span lang="EN-US"><br/></span> 答:原因是这种变压器外壳是平的,其冷却面积很小,甚至不能将变压器空载损耗所产生的热量散出去。因此,强迫油循环变压器完全停了冷却系统的运行是危险的。<span lang="EN-US"> <br/>110</span>、取运行中变压器的瓦斯气体应注意哪些安全事项?<span lang="EN-US"><br/></span> 答:应注意的安全事项有:<span lang="EN-US"><br/></span> (<span lang="EN-US">1</span>)取瓦斯气体必须由两人进行,其中一人操作,一人监护。<span lang="EN-US"><br/></span> (<span lang="EN-US">2</span>)攀登变压器取气时应保持安全距离,防止高摔。<span lang="EN-US"><br/></span> (<span lang="EN-US">3</span>)防止误碰探针。<span lang="EN-US"> </span></span></p>
[此贴子已经被作者于2006-12-14 10:19:21编辑过] |