產品概述 Product overview

本產品是吸收國外新技術，結合國內實際情況研制開發的，整臺產品具有體積小、安裝維護簡便、低噪音、低損耗、防盜、過負荷能力強、全保護等特點。適用于新建小區、綠化帶、公園、車站賓館、工地、機場等場所。 

YB27-12 系列美式預裝式箱式變電站， 適用于 10kV 環網供電， 雙電源供電或終端供電系統中，作為變電、計量、補償控制和保護裝置。 

本產品符合下列標準：GB/T17467-1998《高壓低壓預裝式變電站》、DL/T537-93《6-35kV 箱式變電站訂貨技術條件》。 

This product is developed by absorbing the latest advanced technology from abroad and combining with the actual situation in China. The whole product has the characteristics of small volume, simple installation and maintenance, low noise, low loss, theft prevention, strong overload capacity, full protection, etc. It is suitable for new residential areas, green belts, parks, station hotels, construction sites, airports and other places. 

YB27-12 series American pre-installed box-type transformer substation is suitable for 10kV ring network power supply, dual power supply or terminal power supply system, as substation, metering, compensation control and protection devices. 

This product meets the following standards: GB/T17467-1998《High Voltage and Low Voltage Pre-installed Substation》and DL/T537-93 《Technical Conditions for Ordering 6-35kV Box Substation》

功能及特點 Functions and characteristics

◇ 全絕緣、全密封、免少維護、可靠保證人身安全； 

◇ 結構緊湊、體積僅為同容量歐變的 1/3-1/5，高度低； 

◇ 可采用分箱式結構，避免變壓器油箱內油的污染； 

◇ 高壓側采用雙熔絲全范圍保護，大大降低成本： 

◇ 既可用環網，也可用于終端，電纜頭可在 200A 負荷電流時緊急插拔； 

◇ 箱體采用蜂窩式雙夾層復合板，隔溫又散熱的功能； 

◇ 低壓側加裝電子缺相保護器，當系統內出現不正常電壓時，可快速分斷主進開關； 

◇ 高壓側油浸式負荷開關或 SF6 負荷開關， 可電動升級， 為實現配網自動化打下基礎。 

◇ 采用油浸式 S11 或性能更優的 S13 系列變壓器。 

◇ Fully insulated, fully sealed, free of less maintenance and reliable to ensure personal safety; 

◇ The structure is compact, the volume is only 1/3-1/5 of the European transformer with the same capacity, and the height is low; 

◇ Separate box structure can be adopted to avoid oil pollution in transformer oil tank; 

◇ High voltage side adopts double fuse full range protection, greatly reducing cost: 

◇ Both ring network and terminal can be used. Cable head can be plugged and unplugged in case of 200A load current. 

◇ The box adopts honeycomb double sandwich composite board, which has the functions of temperature isolation and heat dissipation. 

◇ The low-voltage side is equipped with an electronic phase-loss protector, which can quickly disconnect the main switch when abnormal voltage occurs in the system. 

◇ Oil-immersed load switch or SF6 load switch on the high-voltage side can be electrically upgraded to lay the foundation for distribution automation. 

◇ Oil-immersed S11 or S13 series transformer with better performance is adopted.

正常使用環境 Normal operating environment

◇ 海拔高度不超過 1000m； 

◇ 環境溫度：-35℃ ~+40℃； 

◇ 相對濕度：日平均值不大于 95％，月平均值不大于 90％； 

◇ 安裝場所：無火災、爆炸危險、化學腐蝕性氣體及通風良好的場所，地面傾角不大于 3°。 

◇ Altitude does not exceed 1000 m; 

◇ Ambient temperature:-35℃ ~+40℃ ; 

◇ Relative humidity: daily average value is not more than 95%, monthly average value is not more than 90%; 

◇ Installation place: no fire, explosion danger, chemical corrosive gas and well-ventilated place, with the ground inclination not more than 3° .

該產品箱體結構由高壓間隔、低壓間隔、油箱間隔三部份組成。高壓間隔內包括高壓電纜附件、負荷開關、無載調壓分接開關、插入式熔斷器、壓力釋放閥、油位計、油溫計、放油閥。低壓間隔內包括低壓套管、低壓計量表計、斷路器、電容補償。油箱間隔內包括變壓器繞組和鐵芯、散熱器、高壓負荷開關及熔斷器均在油箱內，根據方案需要箱變結構可設計成“品”字型或“目”字型見下圖。

The product box structure consists of three parts: high pressure interval, low pressure interval and oil tank interval. The high-voltage interval includes high-voltage cable accessories, load switch, off-load pressure regulating tap switch, plug-in fuse, pressure relief valve, oil level gauge, oil temperature gauge and oil drain valve. The low-voltage interval includes low-voltage bushing, low-voltage meter, circuit breaker and capacitance compensation. 

The interval of the oil tank includes transformer winding and iron core, radiator, high-voltage load switch and fuse all in the oil tank. According to the scheme, the box transformer structure can be designed into "pin" shape or "mu" shape as shown in the figure below.