CN103036169A - 固体绝缘环网计量柜 - Google Patents
固体绝缘环网计量柜 Download PDFInfo
- Publication number
- CN103036169A CN103036169A CN2012105029721A CN201210502972A CN103036169A CN 103036169 A CN103036169 A CN 103036169A CN 2012105029721 A CN2012105029721 A CN 2012105029721A CN 201210502972 A CN201210502972 A CN 201210502972A CN 103036169 A CN103036169 A CN 103036169A
- Authority
- CN
- China
- Prior art keywords
- cabinet
- voltage transformer
- current transformer
- main bus
- solid insulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 23
- 239000007787 solid Substances 0.000 title claims abstract description 23
- 239000000463 material Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 3
- 239000004020 conductor Substances 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003044 adaptive Effects 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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Abstract
本发明公开了一种固体绝缘环网计量柜，包括有柜体，在柜体内设有三相分别由电压互感器，电流互感器和主母线连接件连接成的一次线路等。电压互感器，电流互感器和主母线连接件的外面除连接端口外均包覆有固体绝缘层，在固体绝缘层表面设有半导电材料层，电压互感器装在电流互感器的上方，主母线连接件装在电流互感器下方；在电压互感器内设有半圆形的均压罩。各部件之间的连接都是通过锥形插头与插孔的连接；在每个连接处两端接触面靠内的部分间隔有绝缘弹性密封垫，上述部件表面的半导电材料层通过螺栓和嵌件与柜体导电连接。本发明与现有技术相比，解决了现有固体绝缘环网计量柜体积较大，绝缘性能不高等问题。
Description
固体绝缘环网计量柜
技术领域
[0001] 本发明涉及高压电力设备制造技术领域，特别是一种计量电能用的计量柜。
背景技术
[0002] 现有的环网计量柜中常用的有一种空气式环网计量柜在柜内的隔离开关以及一次线的连接端是以空气为绝缘介质，其中的接地开关、隔离开关触头为刀头式，相间利用空气绝缘。由于采用空气进行隔离绝缘，相间以及相对地间都要求有足够的隔离距离，一方面绝缘性能不高，另一方面会造成柜体外形尺寸大，导致整体体积较大。
发明内容
[0003] 本发明的目的在于提供一种解决现有环网计量柜绝缘性能不高和体积较大问题的固体绝缘环网计量柜。
[0004] 为了解决上述问题，本固体绝缘环网计量柜的技术方案是：这种固体绝缘环网计量柜，包括有柜体，在所述柜体内设有三相分别由电压互感器，电流互感器和主母线连接件连接成的一次线路等。所述电压互感器，所述电流互感器和所述主母线连接件的外面除连接端口外均包覆有固体绝缘层，在所述固体绝缘层表面设有半导电材料层，所述电压互感器装在所述电流互感器的上方，所述主母线连接件装在所述电流互感器下方；在所述电压互感器的进线接口处设有均压罩。
[0005] 上述技术方案中，更具体的技术方案可以是：所述电压互感器，所述电流互感器，所述主母线连接件之间的连接都是通过锥形插头与插孔连接；在每个连接处两端的所述固体绝缘层之间的接触面靠近外表面的部分相互贴合，使两个连接件之间的所述半导电材料层也实现导电连接，在所述接触面靠内的部分间隔有绝缘弹性密封垫。
[0006] 进一步的：通过螺栓，锥垫和嵌件将电压互感器，所述电流互感器和所述主母线连接件表面的所述半导电材料层连通，并与所述柜体连接，所述半导电材料层是外表面每厘米距离的电阻值R是：500欧姆SRS 10000欧姆的层状物。
[0007] 由于采用上述技术方案，本发明与现有技术相比具有如下有益效果：1、本发明具有体积小，散热好，安全环保。
[0008] 2、本发明绝缘性能好，安装维护方便，环境适应能力强。
附图说明
[0009] 图1是本发明的主示意图。
[0010] 图2是图1中A处的局部放大图。
[0011] 图3是图1中B处的局部放大图。
具体实施方式
[0012] 下面结合附图对本发明作进一步说明： 图1、图2和图3所不的固体绝缘环网计量柜包括有柜体I,在柜体I内分隔有闻压室1. 3和二次元件室等，在高压室1. 3设有三相分别由电压互感器2，电流互感器4和主母线连接件6连接成的一次线路。电压互感器2，电流互感器4和主母线连接件6的外面除连接端口外均包覆有环氧树脂的固体绝缘层，在固体绝缘层表面设有硅橡胶加碳粉的半导电材料层。电压互感器2装在电流互感器4的上方，主母线连接件6装在电流互感器4下方；在电压互感器2内设有半圆形的均压罩10。
[0013] 电压互感器2，电流互感器4和主母线连接件6之间的连接都是通过锥形插头与插孔连接；在每个连接处两端的固体绝缘层之间的接触面靠近外表面的部分相互贴合，使两个连接件之间的半导电材料层也实现导电连接，在接触面靠内的部分间隔有绝缘弹性密封垫5。通过内六角螺栓7，锥垫8和嵌件9将电压互感器2，电流互感器4和主母线连接件6表面的半导电材料层连通，并与柜体I连接，柜体I必须安全接地。
Claims (3)
1. 一种固体绝缘环网计量柜，包括有柜体（1)，在所述柜体（I)内设设有三相分别由电压互感器（2)，电流互感器（4)和主母线连接件（6)连接成的一次线路，其特征在于：所述电压互感器（2 )，所述电流互感器（4 )和所述主母线连接件（6 )的外面除连接端口外均包覆有固体绝缘层，在所述固体绝缘层表面设有半导电材料层，所述电压互感器（2 )装在所述电流互感器（4)的上方，所述主母线连接件（6)装在所述电流互感器（4)下方；在所述电压互感器（2)的进线接口处设有均压罩（10)。
2.根据权利要求1所述的固体绝缘环网计量柜，其特征在于：所述电压互感器（2)，所述电流互感器（4)，所述主母线连接件（6)之间的连接都是通过锥形插头与插孔连接；在每个连接处两端的所述固体绝缘层之间的接触面靠近外表面的部分相互贴合，使两个连接件之间的所述半导电材料层也实现导电连接，在所述接触面靠内的部分间隔有绝缘弹性密封垫（5)。
3.根据权利要求1或2所述的固体绝缘环网计量柜，其特征在于：通过螺栓（7)，锥垫(8 )和嵌件（9 )将所述电压互感器（2 )，所述电流互感器（4 )和所述主母线连接件（6 )表面的所述半导电材料层连通，并与所述柜体（I)连接。
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