| ■ 产品特点 Product features |
| 无瓷、无气、不充油 |
| 防火、防爆 |
| 免维护 |
| 体积小、重量轻 |
| 能够在酷热（50℃）及严寒（-50℃）环境下正常运行 |
| Non-porcelain,non-gas,unfilled oil |
| Fire proof,explosion proof |
| Maintenance-free |
| Smaller volume,lighter weight |
| Ambient air temperature form -50 ℃ to 50℃ | |
| ■ 技术参数 Technical parameters |
| 最高电压：40.5~550kV |
| 额定频率：50Hz、60Hz |
| 额定一次电流：25~5000A |
| 额定二次电流：1A、2A、5A |
| 测量线圈准确级次：0.2S、0.2、0.5S、0.5 |
| 普通保护线圈准确级次：5P、10P、PR、PX |
| 暂态保护线圈准确级次：TPS、TPX、TPY、TPZ |
| 额定输出容量：5~50VA |
| 仪表保安系数：5、10 |
| 准确限值系数：5、10、15、20、25、30、40 |
| 暂态保护级的准确限值条件：与用户协商确定 |
| 二次线圈个数：1~8个 |
| Highest voltage：40.5~550kV |
| Rated frequency：50Hz、60Hz |
| Rated primary current：25~5000A |
| Rated secondary current：1A、2A、5A |
| Measuring winding accuracy class：0.2S,0.2,0.5S,0.5 |
| Protective winding accuracy class：5P,10P,PR,PX |
| Transient protective winding accuracy class：TPS,TPX,TPY,TPZ |
| Rated output：5~50VA |
| Instrument security factor：5,10 |
| Accuracy limit factor：5,10,15,20,25,30,40 |
| Accuracy limit condition or transient protective winding：confering with consumer |
| Number of secondary winding：1~8 | |
| ■ 环境条件 Environment condition |
| 使用场所：户内或户外 |
| 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 |
| Using place：indoor or outdoor |
| 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GB1208《电流互感器》及IEC60044-1《Instrument transformers-Part1：Current transformers》的要求。 |
| The main performance of the product can satisfy the requests of GB1208 《Current transformers》and IEC60044-1《Instrument transformers-Part1：Currenttransformers》. |
| （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) |
操作冲击耐受电压
Operation 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)
|
| 40.5 |
95 |
185 |
-- |
40.5/28 |
10/5 |
| 52 |
95 |
250 |
-- |
52/36 |
10/5 |
| 72.5 |
160 |
350 |
-- |
72.5/50 |
10/5 |
| 126（123） |
230 |
550 |
-- |
126/87 |
10/5 |
| 145 |
275 |
650 |
-- |
145/101 |
10/5 |
| 170 |
325 |
750 |
-- |
170/118 |
10/5 |
| 252（245） |
460 |
1050 |
-- |
252/175 |
10/5 |
| 363 |
510 |
1175 |
950 |
363/252 |
20/5 |
| 420 |
510 |
1175 |
1050 |
420/291 |
20/5 |
| 550 |
740 |
1675 |
1175 |
550/381 |
20/5 | |
| （2）介质损耗因数 Dielectric loss factor |
| 在10kV及Um/√3电压下测量，介质损耗因数不大于0.0025(测试温度为10~40℃ )。 |
| Dielectric loss factor is not greater than 0.0025 under 10kV and Um/√3kV(ambient air temperature 10~40℃). |
| （3）温升限值 Temperature rising limit |
| 绕组最高温升不大于75K。 |
| The highest temperature rising of winding is not greater than 75K. |
| （4）短时热电流(Ith)及动稳定电流(Idyn) |
| Short-time thermal current (Ith) and dynamic current (Idyn) |
| 40.5~72.5kV电流互感器：Ith=31.5kA(4s)，Idyn=80kA |
| 123~550kV电流互感器：Ith=50kA(3s)，dyn=125kA |
| 40.5~72.5kV CT： Ith=31.5kA(4s)，dyn=80kA |
| 123~550kV CT：Ith=50kA(3s)，dyn=125kA |
| （5）机械强度要求 Request of mechanical strength |
| 按照GB 1208《电流互感器》及IEC60044-1《Instrument transformers-Part1:Current transfomers》的要求。 | |
| ■ 验收及维护 Acceptance and maintenance |
每台干式高压电流互感器出厂前一次绕组进行了工频耐压、局部放电测量、介质损耗因数测量及末屏耐压试验，二次绕组进行了标志检验、绝缘试验及误差测量。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。干式高压电流互感器基本不需要维护，每2~3年测量一次电容量及介质损耗因数即可。
Every dry type high voltage current transformer has passed tests including poewr frequency withstand voltage,partial discharge,dielectric loss factor,terminal withstand voltage,sign examination,insulation resistance,error measuring 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 winding capacity and dielectic loss factor every 2~3 years. | |
| ■ 运输及安装 Transportation and installation |
| 运输时用防震材料包装，防止剧烈震动。 |
| 吊装时应防止硅橡胶伞裙受损。 |
| 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。 |
| 安装好后应将干式高压电流互感器的末屏引线可靠接地。 |
| The products should be packed by shockproof material when they are transported. |
| Pay attention to the silicon rubber umbrellas when the products are suspended. |
| Documents：certificate,test report,product manual.They should be put into packing box with the products. |
| Please earth reliably the terminal of the products after installing. | |
| ■ 订货须知 Notice for order |
| 订货时至少需提出下述参数： |
| 一次参数：最高电压、额定电流比、短时热电流及动稳定电流、外绝缘爬虫距离。 |
| 二次参数：二次线圈个数、抽头情况、准确级及相应的负荷、仪表保安系数及准确限值系数，对暂态保护级还需提出其准确限值条件。 |
| 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： |
| Primary parameters：highest voltage,rated current ratio,short-time thermal current and dynamic current, creepage distance. |
| Secondary parameters：number of secondary winding,tapped case,accuracy class and load,instrument security factor and accuracy limit factor,accuracy limit condition of transient protective winding. |
| Environment condition：ambient air temperature,height,pollution class. |
| We can offer the special products too. | | |
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