產品詳情 Product details

樹脂絕緣干式變壓器安全,難燃防火,無污染可直接安裝在負荷中心免維護.安裝簡便綜合運行成本低、損耗低、防潮性能好,可在100%濕度下正常運行,停運后不經預干燥即可投入運行。局部放電量低、噪音小,散熱能力強,強迫風冷條件下可以120%額定負載運行。配備有完善的溫度保護控制系統，為變壓器安全運行提供可靠保障,可靠性高。據對已經投入運行的10000 多臺產品的運行研究,產品的可靠性指標達到國際先進水平。

2.產品特點
低損耗、運行成本低,節能效果明顯;

阻燃,防火、防爆、無污染;
防潮性能好、散熱能力強;

局放低、噪音小、免維護;
機械強度高、抗短路能力強、壽命長;

3.使用環境
使用條件

環境溫度
●最高氣溫+40℃;

●最低氣溫-5℃;
●最熱月平均溫度+30℃;

●最熱年平均溫度+20℃;

海拔不超過1000m
電源電壓的波形近似于正弦波

三相電源電源電壓應大致對稱

安裝環境無明顯的污移
戶內使用

4.鐵芯
鐵芯采用優質取向冷軋硅鋼片材料制造,45°全斜接縫結構,心柱采用絕緣帶綁扎,鐵芯表面采用絕緣樹脂漆密封以防潮防銹,夾件及緊固件經表面處理以防止銹蝕。
此外,本公司還開發了多階步疊鐵芯工藝,鐵芯由剪切線自動堆棧，鐵芯成型采用不疊上鐵輒方案,有效地降低了空載損耗、空載損耗、空載電流和鐵芯噪音。

5.低壓箔式線圈
對于低電壓、大電流線圈,其短路時的短路應力較大,同時低壓匝數較少,低壓電流越大采用線繞型式其安匝不平穩問題越突出,散熱問題也需著重考慮,此時低壓采用箔式繞組可較好解決上述問題,首先箔式產品不存在軸向匝數和軸向繞制螺旋角,高低壓繞組安匝平衡,短路時變壓器軸向應力較小,其次由于其絕緣較薄,工藝上又可容易設置多層風道,散熱問題也較好解決。我廠低壓箔式線圈是STOLLBERG公司生產的自動箔式繞線機上自動繞制,內部焊接在繞線機上采用氬氣保護焊接,精度高,焊接電阻小,無外部焊接過程。繞組層間采用DMD絕緣,繞制完畢后端部用樹脂密封固化。

6.高壓澆注線圈

●主要材料和特性:
線圈采用F級絕緣的銅導線作導體,玻璃纖維與環氧樹脂復合材料作絕緣,其膨脹系數與銅導體相近,具有良好的抗沖擊、抗溫度變化、抗裂性能。玻璃纖維和環氧樹脂所有組成成份都具有自熄性,不會持續燃燒,也不會產生有毒氣體和污染環境。環氧樹脂具有良好的絕緣特性,特別適合制作高電壓等級的線圈。
●制造工藝:
線圈在高精度繞線機上繞制。繞制時在線圈內外層鋪敷玻璃纖維，變壓器容量較大時設計有通風道。線圈繞制完畢后進行真空干燥。整個澆注及固化過程按照工藝部門通過計算機網絡傳輸至澆注控制終端的工藝曲線完成。所有過程可在計算機終端隨時監視并由計算機根據情況自動調整。精密的制造過程使線圈無氣泡、空穴.

7.溫控裝置和風冷系統
保護外殼和對變壓器作進一步的安全保護,防護等級有IP20 Ip23等,外殼材料有冷軋鋼板,不銹鋼板、鋁合金板等供用戶選擇。
低壓出線用標準母線排出線,側出線和頂出線均可,也可以根據用戶的需求設計特殊的出現方式.

8.進線方式示意圖
配電變壓器可根據不同的接口形式制造常規出線、標準封閉母線出線和標準側出線,也可根據用戶要求設計特殊出線方式.

lt is safe,non-poltute,and flame proof, which can be installed directly on the load center with the meritsof free maintenance, easy installation, low combined operationcost，low loss and excellent humidityresistance.The transformer can be operated normally under 100% humidity and put into motion withoutdry in advance when out of use it shares the properties of low partial electricity local discharge, lownoise and large heat dispel capability, it can be operated with the rated load of 120% under the forcedair cooling conditions. With perfect temperature protectcontrol system to ensure safty operation of thetransformer Referring to the operation research of10 thousand transformers have been putto use, theirreliability norm have reached advanced international standard.

2.Product Features
Low Loss,Low Operating Cost, Energy-saving Effect is Obvious;

Flame,Fire.Explasion,Pollution-free;
Moisture Performance,Heat Dissipation Ability;

Board Lowered, Nolse, Maintenance-free;
High Mechanical Strength, Resistance To Short-circuit Capability, Long Life

3.Product characteristics
Service condition

Ambient temperature
●Highest air temperature +40℃:

●Lowest air temperature -5℃;
●Hottest monthly average temperature +30℃;
●Hottest yearly average temperature +20℃ The height above the sea level is below 1000m;

The power supply voltage's cave is similar to sine wave
Three-phase power supply voltage is approximatelly symmetrical

lnstallation without evidence filth.
Service indoor.

4.Iron core

Core alignment with high-quality cold-rolled silicon steel material, 45 °miter joints structure, stem withinsulation tape binding, the core surface is sealed with insulating resin paint rust proof, clamps andfasteners surface treated with prevent corrosion.
In addition, the company also developed a multi-stage step-stack core technology, the core stackautomatically by the shear line, forming the core does not use the stack of yoke program, effectivelyreducing the load loss, load loss, no-load current and the core noise.

5.Lv fooled winding
For low voltage, high current coil, short circuit stress short-circuit its larger, while less low pressure turns,the greater the use of low-voltage electric current ampere-turns wound type whose more prominentissue is not stable, heat issues also need to focus on to consider, at this time use low-voltage foilwinding can better solve the problem, first of all there is no axial foil product axially winding turns anda helix angle, high and low voltage winding ampere-turns balance, axial stress is small transformershort circuit,Second, because the insulation is thin, the process can be easily set up multi-duct, coolingproblems are better solved. l plant low-voltage foil coils are produced on STOLLBERG automatic foilwinding machine automatic winding,Internal welding using the winding machine argon arc welding, highprecision, small resistance welding, no external welding process. DMD insulation layer using inter-winding, winding complete rear end portion sealed with a resin cured.

6.Hv casted winding
●Main material and characteristics:
Class F coil insulated copper wire as conductor, glass fiber and epoxy resin composite materials forinsulation, its coefficient of expansion similar to the copper conductor, with good impact resistancetemperature changes, crack resistance. Glass fiber and epoxy resin constituent all have self-extinguishing, it does not continue to burn, it does not produce toxic gases and pollute the environment.Epoxy resin has good insulating properties, particularly suitable for the production of high-voltage coillevel.
●Manufacturing process:
The windings wound on the high-accuracy winding machine, when windingpave cast grass fibre aroundthe external and internal of the windings, there be armed air passage for transformer of large capacity,Then dry it invacuum.The whole casting and olidifying process is performed according to the processcurve of casting control terminal, which transferred through computer network by process department,every process can be monitored momentarily and adjusted for the various surroundings. The preciseprocess ensures free bubble and free hole of winding.

7.Temperature control device and air cooling system

The shell makes further protection for transformer. For users option, the grade of protection has IP20、IP23, ect.and the material has sort of cold-rolled steel plates and stdainless steel plates, ect.
The low-voltage outgoing line can adopt the method of standard bus bar group outgoing line, outgoing onthe transverse side and upper part as well as the very method that designed by the users.

8.Leading-in drawing
Routine lead, standard closed busbar lead type and standard side lead for the distributiontransformer,with special lead way produced to meet the customer's demand.