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高压隔离开关安装工艺有人了解吗？

高压隔离开关安装工艺有人了解吗？

浏览：41次 | 提问时间： 08-06 10:12

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烟花巷陌谁的奢望带着伤 08-06 10:13

高压隔离开关在电力系统中,主要作用是隔离电源、*闸*作、分合小电流等。高压隔离开关的安装,有其严格的工艺要求。一、主要施工机具准备 8t或16t吊车一辆;吊绳两根;尖扳手3把;力矩扳手220N·m1把;梅花扳手(12～30)5把;电焊机1台;切割机1台;角磨机1台。

追赶太阳 08-06 10:21

1、开箱检查设备到货后，开箱检查设备型号、规格、数量是否符号设计要求，备品配件是否齐全，瓷件无损伤。接线端子及载流部分应清洁，接触良好，触头镀银层无脱落。绝缘子表面应清洁，无裂纹、破损、焊接残留斑点等缺陷，磁铁粘合牢固。隔离开关底座转动部分应灵活，*动机构的零配件齐全，所有固定连接部件紧固。2、准备工作(1) 取出*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*式除外)。各电压等级隔离开关吊装时应注意地*的朝向符合设计要求，隔离开关主*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*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*合闸到位后，主动臂在*点位置，调整限位螺钉间隙为2mm。(5)用手推动接地*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*刃转轴上的扭力弹簧或其它拉伸式弹簧调整到*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*，同一轴线上的*动机构安装位置应一致。电动或**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*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*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*动机构的手柄位于上部或左端的极限位置，或涡*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。

国产姑娘不矫情 08-06 10:30

隔离开关是高压开关的较简单的一种,它的用量很大,约为断路器用量的3一4倍。隔离开关的作用是在线路上基本没有电流时,将电气设备和高压电源隔开或接通。

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