■ 產品特點 Product features
無瓷、無氣、不充油
防火、防爆
免維護
體積小、重量輕
能夠在酷熱（50℃）及嚴寒（-50℃）環境下正常運行
Non-porcelain,non-gas,unfilled oil
Fire proof,explosion proof
Maintenance-free
Smaller volume,lighter weight
Ambient air temperature form -50 ℃ to 50℃
■ 技術參數 Technical parameters
最高電壓：40.5~550kV
額定頻率：50Hz、60Hz
額定一次電流：25~5000A
額定二次電流：1A、2A、5A
測量線圈準確級次：0.2S、0.2、0.5S、0.5
普通保護線圈準確級次：5P、10P、PR、PX
暫態保護線圈準確級次：TPS、TPX、TPY、TPZ
額定輸出容量：5~50VA
儀表保安系數：5、10
準確限值系數：5、10、15、20、25、30、40
暫態保護級的準確限值條件：與用戶協商確定
二次線圈個數：1~8個
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
■ 環境條件 Environment condition
使用場所：戶內或戶外
環境溫度：-50~50℃
海拔高度：不超過1000m（超過1000m時另議）
環境污穢等級：Ⅱ、Ⅲ、Ⅳ級
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
產品性能滿足GB1208《電流互感器》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）額定絕緣水平及局部放電水平 Rated insulation level and partial discharge level

（2）介質損耗因數 Dielectric loss factor
在10kV及Um/√3電壓下測量，介質損耗因數不大于0.0025(測試溫度為10~40℃ )。
Dielectric loss factor is not greater than 0.0025 under 10kV and Um/√3kV(ambient air temperature 10~40℃).
（3）溫升限值 Temperature rising limit
繞組最高溫升不大于75K。
The highest temperature rising of winding is not greater than 75K.
（4）短時熱電流(Ith)及動穩定電流(Idyn)
Short-time thermal current (Ith) and dynamic current (Idyn)
40.5~72.5kV電流互感器：Ith=31.5kA(4s)，Idyn=80kA
123~550kV電流互感器：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）機械強度要求 Request of mechanical strength
按照GB 1208《電流互感器》及IEC60044-1《Instrument transformers-Part1:Current transfomers》的要求。
■ 驗收及維護 Acceptance and maintenance
每臺干式高壓電流互感器出廠前一次繞組進行了工頻耐壓、局部放電測量、介質損耗因數測量及末屏耐壓試驗，二次繞組進行了標志檢驗、絕緣試驗及誤差測量。到現場后，可以按BG50150《電氣裝置安裝工程 電氣設備交接試驗標準》進行。干式高壓電流互感器基本不需要維護，每2~3年測量一次電容量及介質損耗因數即可。
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.
■ 運輸及安裝 Transportation and installation
運輸時用防震材料包裝，防止劇烈震動。
吊裝時應防止硅橡膠傘裙受損。
出廠文件包括：產品合格證、試驗報告和產品說明書，均放入包裝箱內，與產品一起運輸。
安裝好后應將干式高壓電流互感器的末屏引線可靠接地。
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.
■ 訂貨須知 Notice for order
訂貨時至少需提出下述參數：
一次參數：最高電壓、額定電流比、短時熱電流及動穩定電流、外絕緣爬蟲距離。
二次參數：二次線圈個數、抽頭情況、準確級及相應的負荷、儀表保安系數及準確限值系數，對暫態保護級還需提出其準確限值條件。
環境參數：環境溫度、海拔高度、污穢等級。
如有特殊要求，可按用戶需要進行設計。
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.