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电力变压器的安装规范是怎样的？

电力变压器的安装规范是怎样的？

浏览：41次 | 提问时间： 07-06 05:35

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3个答案

厌人心 07-06 05:36

1、冷却风机一般安装在干式变压器下夹件旁边，将底下及外面的冷空气吹向干式变压器的圈线内，使干式变压器能充分冷却。
2、安装时应根据冷却风机的出风角度(与水平夹角约为135°)及出风口位置，使风机的出风能最顺利地进入干式变压器的高低压线圈间的风道，从而使散热效果最佳。
3、冷却风机安装一般采用下底脚支撑式，这种安装方式是将底架做成一框架并固定在夹件或底脚上，然后将风机安装在框架上。为了减小风机的振动，安装时应在底脚下垫上橡胶块。
4、为了不影响冷却风机的出风量，安装时其进风口(指外侧面)应与封闭的障碍物保持一定
的距离(一般不小于10cm)，使风机的进风顺畅，建议风机进风口附近的外壳应开有通风孔。
希望我的答案能帮到你。

烙印 07-06 05:44

1.变压器卸车及就位
　　在变压器基础验收移交后，对周边施工场地进行平整和夯实，布置好卸车的平台和拖运轨道。
　　在主变拖运至安装点前，应再次对变压器进行检查。核对变压器的高低压侧方向以确定卸车方向。主变卸车、托运方案参照第三节〈大件吊装和运输〉。变压器就位后，在其他任何工作开始前必须可靠接地。
　　2.器身检查
　　有吊罩检查和直接进入器身内部检查两种方式供选择。采用何种方式视现场实际情况及厂家、业主要求定。
　　无论采用何种方式，都应选择在良好天气中进行并尽量缩短器身在空气中的暴露时间，应满足一、周围空气温度不低于0℃，器身温度不低于周围空气温度;当器身温度低于周围空气温度时，应采用热油循环法将器身加热，使其温度高于周围空气温度;二、空气相对湿度不大于75;三、场地周围应清洁并有防尘措施三个条件。
　　3.吊罩检查方式
　　钟罩起吊时应平衡起吊，吊索与铅垂线的夹角不宜大于30度，起吊过程应缓慢，严禁器身与箱壁碰撞。
　　充氮运输的变压器必须让器身在空气中暴露15min以上，待氮气扩散后才可开始检查。
　　4.进入器身内部检查方式
　　充氮运输的变压器器身检查前采用注油排氮的方式排氮，排氮前须将油箱中的残油排尽，注入油箱中的油必须是合格绝缘油。油位应高出铁心上沿100mm以上，静置12h后方可排油准备内部检查。

薄荷少年檸檬心 07-06 05:52

电力变压器的安装规范如下：
一，尽量在负荷中心。有大负荷的要靠近大负荷。
二，不能安装在自然灾害的地方如山洪、火灾、易发生山体滑坡等地方。
三，不能安装在污染严重的地方。
四，应和房屋等保持安全距离。
五，应能使用吊车等、且交通方便。

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