10、20kV組合式變壓器 ZGS11系列

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型號及含義
Brief introduction to the products

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產品簡介
Brief introduction to the products

ZGS□-12預裝式變電站(亦稱美變)是本公司參照美國箱式變壓器研制出的新型成套配電設備,是將油浸密封式電力變壓器與高、低壓電器元件進行優化組合,通過結構的優化,開關設備盡量小型化,大大縮小了組合變壓器的占地面積,其體積只相當于同等容量歐式箱變的1/3~1/5,具有體積小、噪音低、供電可靠、結構合理、安裝靈活、操作方便,可最大限度的深入負荷中心等優點。廣泛適用于住宅小區、商業中心、車站、工礦企業、機場、鐵路、學校、醫院、高層建筑等場所。

The ZGS □-12 prefabricated substation (also known as the American substation) is a complete set of novel power distribution equipment developed on the basis of the American box-type transformers, which optimizes the combination of oil-immersed power transformers with high and low voltage electrical components.Through structure optimization and miniaturization of the switching equipment, it has greatly narrowed the area of transformer combination. Its volume is only equivalent to 1/3 ~ 1/5 of the European box-type transformers with the same capacity. It is small in size, low in noise, rational in structure, flexible in installation, easy in operation and has maximum depth in the load center. It is widely used in residential quarters, commercial centers, railroad stations, industrial and mining enterprises, airports, railroads, schools, hospitals and places of high-rise buildings.

產品結構
Product Structure

常規美式箱變為品字形結構,分為前、后兩個部分,前面為高、低壓前艙。高壓前艙包括10KV負荷開關和無載分接開關操作手柄、插入式熔斷器、壓力釋放閥、油溫計、油位計、注油孔、放油閥。后部為油箱及散熱片,變壓器繞組和鐵芯、高壓負荷開關、無載分接開關及保護用熔斷器都在油箱中。油箱為全密封結構。也可選用目字形結構,目字形結構分高壓艙、變壓器和低壓艙三部分。


美變高壓

ZGS系列美變的高壓端子配有高壓套管(單通或雙通),用來連接肘型電纜插頭或肘型全絕緣避雷器,將帶電部分密封在絕緣體內,形成全絕緣結構,端子表面不帶電,(地電位),可確保人身安全。在緊急情況時,電纜插頭可在變壓器滿載時進行帶電插、拔,為此,電纜插頭也可以起到負荷開關的作用。根據需要帶電顯示器或故障指示器可裝在電纜插頭上。在箱變高壓前艙壁上靠近高壓套管的地方焊有壁掛,用于固定可配置的支座式絕緣套管接頭,當帶電拔下電纜插頭時,可立即插到支座式套管接頭上.


美變熔斷器

ZGS系列美變采用插入式熔斷器和后備限流式熔斷器兩級串聯分段保護,保護原理先進、經濟、可靠,操作簡單方便。插入式熔斷器負責小范圍的過電流開斷(含低壓側的短路故障),在變壓器過負荷和油溫過高的情況下,該熔斷器主要用來保護組合式變壓器。

后備限流式熔斷器負責大范圍的故障電流開斷,主要發生在變壓器內部高壓側的短路故障,且用來快速切斷故障變壓器,保護高壓線路。


10kV負荷開關

10kV油浸式負荷開關系三相聯動開關,具有彈簧操作功能,可完成負荷開斷和關合操作。負荷開關分為二位置和四位置兩種。二位置開關用于終端型,四位置負荷開關用于環網型或用于雙電源供電方式。


美變低壓間隔

低壓間隔內有低壓出線端子,根據需要設有低壓總斷路器和分支斷路器、低壓電流、電壓測量表計、無功自動補償裝置,根據用戶要求可以在低壓間隔的頂部安裝軸流風機,由專用溫控設備根據間隔內的溫度自動控制風機的散熱。根據需要可裝設帶有遙測、遙訊功能的綜合配電測試儀,再輔以低壓欠壓控制儀,可實現失壓和單相欠壓保護功能,可避免損壞變壓器及負載電器,保護功能更全。


 The conventional American box-type transformer is of a QQ截圖20161110095517.pngstructure divided into two parts. The front part is high and low voltage cabin, including 10kV high voltage load switch, no-load tapping operating handle, plug-in fuses, pressure release valve, oil thermometer, oil level gauge, oil injection hole and oil discharge valve. The rear part is oil tank and heat sink, transformer windings and core, high voltage load switch, no-load tapping switch and fuses for protection. The oil tank is of a sealing structure or of a QQ截圖20161110095539.png structure, including high voltage cabin, transformer and low voltage cabin.


High Voltage of American Box-Type Transformer

The high-voltage terminals (single pass or double pass) of the ZGS Series American Box-Type Transformer fitted with high voltage bushing are used to connect elbow-type cable plug or elbow-type full insulated arresters and enclose the live parts in an insulation to form an insulation structure. The terminal surface is not charged to ensure personal safety. In case of emergency, the cable plug can be charged and also play the role of the load switch. According to the requirements, the live display or the fault indicator can be mounted on the cable plug. A wall hanging is welded on the wall of the front cabin near the high-voltage bushing for fixing the support type insulation bushing joint. When unplug the live cable plug, it could be pluged immediately on the support type bushing joint.


Fuse of American Box-Type Transformer

The ZGS Series American Box-Type Transformer adopts two sub-series protection with the plug-in fuse and back-up current-limiting fuse. The protection is advanced, economic, reliable and easy to operate. Plug-in fuse is used for over-current small-scale breaking (including the short-circuit fault at the low-voltage side). In case of the transformer overload and high temperature, the fuse is mainly used to protect the combined transformer. The backup current-limiting fuse is used for the wide range fault current breaking, mainly the short-circuit fault at the high-voltage side of the transformer, for cutting off the transformer and protecting the high voltage transmission line.


10kV Load Switch

The 10kV oil-immersed load switch is a three-phase linked switch with springs used for breaking and closing operation of the load. The load switch is of two position or four position structure. The two position switch is used for the terminal type power supply while the four-position switch is used for the ring or double power supply.


Low Voltage Cabin

In the low-voltage cabin, there are outgoing terminals. According to the requirements, fixed in the cabin there are low- voltage main and branch circuit breakers, low-voltage current and voltage measuring meters and automatic reactive power compensation devices. In accordance with the user's requirements, the axial flow fan could be installed at the top of the low-voltage cabin.  the cooling of the fan could be automatically controled by the special temperature controled equipment according to the temperature in the cabin. The integrated distribution tester with the function of telemetry and remote information and supplemented with low-voltage and under-voltage control device could be fixed according to the requirements. The protection of voltage loss and single-phase under- voltage could be realized to avoid damage to transformers and electrical loads.


技術參數
Product Structure

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產品優點
Product Advantages

功能齊全可靠

可以切斷負荷電流,全范圍的電流保護,有環網(雙電源)、終端兩種接線供電方式的選擇,有土建變電站的基本功能。


用戶投資少、箱變占地面積小、安裝簡單方便、加快供電速度

投入資金少:比歐式箱變或土建變電站兩者的需用資金少。

安裝簡單方便:現場工作人員只需擰緊四個安裝螺栓和接好進出線電纜和肘型避雷器的接地線即可。

加快供電進度:只需在報裝時確定變壓器的容量,不需要提供短路電流、動穩定、繼電保護等電參數的計算即可訂貨。


安全供電可靠

ZGS系列美變采用全封閉設計,產品為三點接地,外殼表面無導電部件,不存在絕緣距離,能確保人身安全。高壓進線采用全絕緣肘型電纜頭,插拔方便,外表不帶電,可以觸摸。用絕緣操作桿操作,更確保人身安全。


維護簡單方便


插拔熔斷器、電纜插頭、肘型避雷器結構使更換非常方便。全密封設計的變壓器使變壓器絕緣油與空氣不接觸,變壓器免維護。


Fully Reliable Function

Can be used to cut off the load current to realize the full range current protection.  There are two choices of ring network (dual power) and terminal power supply and the basic functions of substation construction.


Small Investment for Users, Small Building Area, Convenient Installation, Speedy Power Supply

Less investment: investment less than the European-style box-type transformer or substation construction. 

Simple and convenient installation: only tighten the four mounting bolts, connect cables and the ground of the elbow-type arresters.

Speed Power Supply: Determine only the capacity of the transformers when they are installed. The calculation of the electric parameters such as breaking current, dynamic stability and relay protection are not necessary to be provided for ordering.


Safe and Reliable Power Supply

The ZGS Series American Box-type Transformer adopts fully closed design with three-point grounding. There are no conductive components on the surface of the shell. There is no insulation distance. The personal safety could be ensured. The high voltage line has fully insulated elbow-type cable head easy to plug. The insulated joystick operation can ensure personal safety.


Simple and Convenient Maintenance


The plug fuses, cable plugs and the elbow-type lightning arrester structure make the replacement very convenient. The fully closed transformer avoids the insulating oil from contact with the air. So that the transformer is maintenance free.


訂貨須知
ordering Information

訂貨方在訂貨時應給本公司提供與產品有關的下列數據

A.產品型號

B.運行條件

C.變壓器類型及容量

D.高壓、低壓主接線方案及選擇使用電器元件的類型和參數

E.外殼顏色

F.如用戶有其它要求可在訂貨時一并提出


The customer should provide us with the following data concerning the products:

A. The model of the products

B. Operating conditions

C. The types and capacity of the transformer

D. Main wiring proposal for high and low voltages and the type and parameters of the electrical components

E. Shell Color

F. If there are other requirements, the customer can submit while ordering.


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