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名称:GXQJ3-0.4-72.5全屏蔽复合绝缘母线   浏览次数:9431 次
产品特点 Product features
导流体为管型,集肤效应低,单位截面积载流量大。
采用电容均压绝缘,电场分布均匀,电气绝缘性能强。
各相绝缘单独密封,避免雨水,潮气及灰尘侵入。
比矩形母线机械强度高,可承受的短路电流大,安装跨距大。
能够直接安装在构架上,取消穿墙套管和支柱绝缘子,具有较强的抗震能力。
安装方便,免维护。
Conductor is tube type,lower skin effect,larger ampacity of unit cross-sectional area.
Using capacitance ovltage-sharing insulation,more equally distributed electric field and better electric insulation performance.
Each phase insulation is sealed separately,avoiding invation of water,humidity and dust.
The insulation busbar is stronger than the busbar inmechanical strength,bearing larger short circuit current,installing larger span.
The busbar can be fixed direetly on the support,cancelling wall bushing and supporting insulator,having stronger ability of resisting earthquake.
COnvenient installation,maintenance-free.
■ 适用范围 Application range
变压器和开关柜连接
开关柜和开关柜连接
风力发电引出连接
Transformer-switchgear connections
Switchgear-wwitchgear connections
Wind power generator leading-out
■ 技术参数 Technical parameters
最高电压:0.4~72.5kV
额定电流:1000~5000A
额定频率:50Hz、60Hz
Highest voltage:0.4~72.5kV
Rated current:1000~5000A
Rated frequency:50Hz、60Hz
■ 环境条件 Environment condition
环境温度:-50~50℃
海拔高度:不超过1000m(超过1000m时另议)
环境污秽等级:Ⅱ、Ⅲ、Ⅳ级
Ambient air temperature:-50~50℃
Height:1000m(confering with consumer if above 1000m)
Pollution class: Ⅱ、Ⅲ、Ⅳ
■ 主要性能 Main performance
        产品性能满足GB/T4109《交流高压高于1000V的绝缘套管》及GB/T12706.4《额定电压6kV(Um=7.2kV)到35kV(Um40.5kV)电缆附件试验要求》的要求。
The main performance of then product can satisfy the requests of GB/T4109 《Insulated bushing for alternating voltages above 1000V》and BG/T12706.4《Testrequirements on accessories for cable with rated voltages from 6kV(Um=7.2kV) up to 35kV(Um=40.5kV)》.
(1)额定绝缘水平及局部放电水平 Rated insulation level and partial discharge level
最高电压
Highest voltage
Um(kV)
额定绝缘水平
Rated insulation level
局部放电水平
Partial discharge level
工频耐受电压
Power frequency withstand voltage
(kV)
雷电冲击耐受电压
Lightning impulse
withstand voltage
(kV)
局部放电测量电压
Partial discharge
test voltage
(kV)
局部放电量
Partial discharge
(pC)
      0.4 3 / 3 5
      0.69 3 / 3 5
      7.2 32 60 6 5
      12 42 75 15/10 10/5
      24 58 125 24/15 10/5
      40.5 95 185 36/25 10/5
      52 95 250 52/32 10/5
      72.5 160 350 72.5/44 10/5
(2)介质损耗因数 Dielectric loss factor
在10kV及电压下测量,介质损耗因数不大于0.005(测试温度为10~40℃ )。
Dielectric loss factor is not greater than 0.005 under 10kV (ambient air temperature 10~40℃).
(3)温升限值 Temperature rising limit
绕组最高温升不大于65K。
The highest temperature rising of winding is not greater than 65K.
(4)短时热电流:63kA,3s;动稳定电流:160kA。
Short-time thermal current:63kA,3s, dynamic current:160kA.
■ 验收及维护 Acceptance and maintenance
         每只封闭绝缘母线出厂前均进行了工频耐压、局部放电测量、介质损耗因数测量。到现场后,可以按BG50150《电气装置安装工程 电气设备交接试验标准》进行。封闭绝缘母线基本不需要维护,每2~3年进行一次耐高压和电容量及介质损耗因数即可。
Every insulation busbar has passed tests including poewr frequency withstand voltage,partial discharge,dielectric loss factor before leaving the factory. We follow up GB50150 《Standard for hand-over test of electric equipment electric equipment installation engineering》when the products are handed over. In generally,the products need no maintenance basically.It is enough to check the primary withshand voltage,capacity and dielectric loss factor tests every 2~3 years.
■ 运输及安装 Transportation and installation
出厂时各段封闭绝缘母线分别编号,便于现场安装。
运输时用防震材料包装,防止剧烈震动。
出厂文件包括:产品合格证、试验报告和产品说明书,均放入包装箱内,与产品一起运输。
安装好后应将封闭绝缘母线的末屏引线可靠接地。
 
Every section insulation bushbar should number respectively when leaving factory,converient fro installing at site.
Documents:certificate,test report,product manual.
Please earth reliably the terminal of insulation busbar after installing.
■ 订货须知 Notice for order
订货时至少需提出下述参数:
电气参数:最高电压、额定电流、短时热电流、绝缘水平。
环境参数:环境温度、海拔高度、污秽等级。
如有特殊要求,可按用户需要进行设计。
You should specify the following parameters at least when ordering:
Electric parameters:highest voltage,rated current,short-time thermal current, insulation level.
Environment condition:ambient air temperature,height,pollution class.
We can offer the special products too.
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