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隔离开关安装方法是啥？

隔离开关安装方法是啥？

浏览：116次 | 提问时间： 06-22 03:16

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那后来呢 06-22 03:16

(1)取出资料认真阅读，技术员及安装负责人要熟悉说明书，掌握技术要求。(2)检查隔离开关基础与底座根开，安装尺寸偏差小于规程要求。(3)同一组隔离开关支架组立时应保证高差及极间安装孔距离的准确性。3、隔离开关组装(1)将隔离开关按设计规格型号分组运到安装地点，并检查所有的转动部分是否涂有润滑脂，转动是否灵活，如有卡阻应进行处理。(2)组装时对导电部分(不包括镀银部分)，先涂上一层凡士林，用沙纸或钢丝刷刷去表面的氧化层，用布擦掉油污，再涂上一层导电膏。均压环要安装正确，平正。(3)吊装要求吊装时隔离开关处于合闸位置(剪刀式除外)。各电压等级隔离开关吊装时应注意地刀的朝向符合设计要求，隔离开关主刀闸机构拐臂应安装在正确相上。调整三相开关主轴在一条线上，用水平尺检查底座的水平度，如不平则加垫片调整，但不得多于3片，用钢卷尺测量开距，符合规程要求：110kV及以下不应大于10mm，110kV以上不应大于20mm。相间连杆应在同一水平上。(4)调整主闸刀在合闸位置时处于水平状态，上、下导电管在一条线上，注意一定要使双连杆的长度相等，且主闸刀合闸到位后，主动臂在死点位置，调整限位螺钉间隙为2mm。(5)用手推动接地刀杆使其插入接地静触头深度符合规程要求，具体见附表。(6)传动装置的传动部分涂以润滑剂，接地刀刃转轴上的扭力弹簧或其它拉伸式弹簧调整到操作力矩最小，并加以固定，在垂直连杆上涂以黑色油漆。(7)机构安装调整机构安装采用铅垂法检查中心度，当机构和开关均处于合闸时，将机构与垂直连杆焊死，同一轴线上的操动机构安装位置应一致。电动或气动操作前，先进行多次手动分、合闸，机构动作正常。电机转向正确，机构分、合闸指示与设备的实际分、合闸位置相符。机构安装后动作应平稳，无卡阻、冲击等导常情况。限位装置应准确可靠，达到规定的分、合极限位置时，能可靠切除电源或气源。(8)三相调整用联动杆将三相联接起来，注意将三个联动拐臂的起始位置调到一致，并与主闸刀分合闸位置相符。调三相联杆的长短来调整三相合闸同期性，不同期允许值为35kV小于5mm，110kV小于10mm，220kV和500kV应小于20mm。(9)闭锁装置应动作灵活、准确可靠；接地刀刃与主触头间的机械或电气闭锁应准确可靠。(10)当拉杆式手动操动机构的手柄位于上部或左端的极限位置，或涡轮蜗杆式机构的手柄位于顺时针方向旋转的极限位置时，应是隔离开关的合闸位置，反之，应是分闸位置。(11)隔离开关合闸后，触头间的相对位置、备用行程以及分闸状态时触头间的静距或拉开角度要求符合产品技术要求。(12)有引弧触头的隔离开关由分到合时，在主动触头接触前，引弧触头应先接触，从合到分时，触头断开顺序应相反。

哽咽笑 06-22 03:25

2.1隔离开关安装的原则大电流隔离开关的安装和调试是保证其能够正常运行的前提。从某种意义上说，良好的安装就是调试成功的一半，因此，大电流隔离开关安装时应本着横平竖直的原则进行。(1)三相的基座应上下对正，即在同一水平面内――保证水平连杆在同一个平面内。(2)三相基座应前后平齐，即三相的从动极和主动极应分别在同一个垂直平面内――保证水平连杆在同一个平面内。(3)三相基座应左右平行，保证水平连杆长度配合默契。(4)三相瓷瓶应垂直――保证水平连杆在同一个平面内，且保证触头接触面接触良好。(5)操动机构输出轴与操作相操作轴同心――保证操作时所需的操作功最小。2.2大电流隔离开关各部分安装的要求(1)导电部分――接触应紧密，导电应良好，必要时清擦干净后涂凡士林或导电膏。(2)绝缘部分――绝缘完好，满足要求。(3)转动(传动)部分――润滑、灵活且无卡阻，不符合要求时涂MoS2等润滑脂。(4)固定部分――紧固牢固，不松动。2.3隔离开关安装时的注意事项(1)额定电流应符合设计要求。(2)地刀的安装方向符合要求。单接地时，分左接地和右接地，一般地刀在开关侧。(3)隔离开关的开口方向符合要求。当人面对隔离开关机构站立时，隔离开关的开口方向应与人的眼睛所看到的方向应一致。(4)隔离开关的左右触头安装位置正确。左触头(触指侧)装于主动极侧，右触头(触头侧)装于从动极侧。(5)隔离开关主刀的机构通常装于A相操作轴下方(6)相间距离110kV不小于2m，35kV不小于1.2m。

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