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                ZGS-24KV/12KV組合式變壓器(美變)
                    發布時間: 2021-08-18 21:17    

                ZGS-24、12系列預裝式變電站,又稱美式箱變,是本公司根據國家城網改造而研制的新型成套變電設備,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。

                產品簡介

                Brief introduction to the products

                ZGS-24、12系列預裝式變電站,又稱美式箱變,是本公司根據國家城網改造而研制的新型成套變電設備,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。


                ZGS-24 and ZGS-12 series prefabricated substation, also known as the American substation, is a complete set of new power transformer equipment developed by our company on the basis of transformation of national urban network, making the optimal combination for the oil-immersed sealed power transformer and high and low voltage electrical components. Through structure optimization, the switchgear shall be miniaturized to extreme extent, which greatly reduce the occupied area of the combined transformer whose  volume is only equivalent to 1/3一 1/5 of the European box-type transformers with such advantages as small volume, low noise, reliable power supply, reasonable structure, flexible for installation, easy for operation and capable of going deep into the load center to maximum extent, etc. It is widely used in residential quarters, commercial centers, stations, industrial and mining enterprises, airports, railroads, schools, hospitals, high-rise buildings and places.


                型號及含義

                Types and Meanings


                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、變壓器艙和低壓艙三部分。


                美變高

                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掛鉤。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。


                24KV負荷開關

                24KV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。


                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啟動和停止。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 “Pin” (品) structure divided into two parts, front and rear. The front part is high and low voltage forecabin, including load switch, operating handle of no-load tapping switch, fuse, 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 are put in the oil tank. The oil tank is of fully sealed structure, and “Mu”(目) structure can also be selected, which can be divided into three parts, namely, high voltage cabin, transformer cabin and low voltage cabin.


                High Voltage of American Box-Type Transformer

                The high-voltage terminals of the ZGS Series American Box-Type Transformer is equipped with high voltage bushing (single pass or double pass) which is used to connect elbow-type cable plug or elbow-type full insulation arrester to enclose the live parts in the insulation to form the all-insulation structure. The terminal surface is uncharged (ground potential) to ensure personal safety. In case of emergency, hot plug can be achieved with respect to cable plug when transformer is fully loaded. Therefore, the cable plug can also function as load switch. The live display or the fault indicator can be mounted on the cable plug as required. A hook is welded on box-type transformer high voltage forecabin wall where is close to high-voltage bushing to fix the configurable seat type insulating sleeve joint. When unplugging the cable plug in charge condition, it can be plugged immediately to the seat type sleeve joint.


                Fuse of American Box-Type Transformer

                ZGS Series American Box-Type Transformer adopts plug-in fuse and back-up current-limit fuse two stages in series for segment protection. The protection principle is advanced, economic and reliable, and the operation is simple and convenient. Plug-in fuse is responsible for the small-scale over-current breaking (including the short-circuit fault of the low-voltage side). In case of the overload of transformer and too high oil temperature, the fuse is mainly used to protect the combined transformer. The backup current-limit fuse is responsible for the wide range of fault current breaking, mainly the short-circuit fault of the high-voltage side inside the transformer, to quickly cut off the fault transformer and protect the high voltage line.


                24KV Load Switch

                The 24KV oil-immersed load switch is a three-phase linked switch with spring operating function, capable of performing load breaking and closing operation. The load switch is divided into two kinds, namely, two positions and four positions. The two-position switch is used for the terminal type while the four-position switch is used for the ring network or double power supply mode.


                10KV Load Switch

                10KV oil-immersed load switch is a three-phase linked switch with springs operating function, capable of performing load breaking and closing operation. The load switch is divided into two kinds, namely, two positions and four positions. The two-position switch is used for the terminal type while the four-position switch is used for the ring network or double power supply mode.


                American Box-Type Transformer low Voltage Interval

                There is low voltage coil-out terminal inside the low voltage interval. Low voltage general circuit breaker, branch circuit breakers, low-voltage current and voltage measuring meters and reactive automatic compensation devices are fitted according to needs. In accordance with the user requirements, the axial flow fan can be installed on the top of the low-voltage cabin. The start and stop of fan can be automatically controlled by temperature control equipment in accordance with the temperature inside the interval. According to the needs, comprehensive distribution tester with telemeter and telecommunication function can be equipped, supported by low voltage and undervoltage control instrument, and then undervoltage and single-phase protection function can be achieved to avoid damaging transformer and load electrical equipment so that the protection functions are more complete.


                技術參數

                Technical Parameters


                項 目 Items單 位 Unit參 數 Parameter

                額定電壓
                Rated Voltage

                原邊
                Primary Side

                KV2010

                副邊
                Secondary Side

                0.40.4

                最高工作電壓
                Maximum Working Temperature

                KV2412

                額定頻率
                Rated Frequency

                Hz5050

                額定容量
                Rated Capacity

                KVA

                100、125、160、200、250、315、400
                500、630、800、1000、1250、1600

                100、125、160、200、250、315、400
                500、630、800、1000、1250、1600

                1分鐘工頻耐壓
                Working Frequency Withstand Voltage Per Minute

                KV55

                42(不含變壓器) 35(變壓器)
                42(without transformer) 35(transformer)

                BIL沖擊耐壓
                BIL Impulse Withstand Voltage

                KV12575

                冷卻方式
                Cooling Type

                 

                油浸自冷式
                Oil-immersed self-cooling mode

                油浸自冷式
                Oil-immersed self-cooling mode

                無載調壓
                No-load Voltage Regulation

                KV±2x2.5%±2x2.5%

                環境溫度
                Ambient Temperature

                -45~+40-45~+40

                變壓器允許油頂層溫升
                Allowable Temperature Rise of Oil Top Level of Transformer

                K≤55≤55

                變壓器低壓繞組溫升
                Temperature Rise of Low Voltage Winding of Transformer

                K≤65≤65

                變壓器高壓繞組溫升
                Temperature Rise of High Voltage Winding of Transformer

                K≤65≤65

                噪音等級
                Noise Level

                dB≤55≤55

                防護等級
                Protection Level

                IP3333


                產品優點

                Product advantages

                1.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。


                2.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、繼電保護等參數的計算即可訂貨。


                3.安全供電可靠

                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。用絕緣操作桿操作,更確保人身安全。


                4.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。


                1. Complete and reliable function

                It can be used to cut off the load current to realize the full range of current protection. There are two wiring power supply modes for selection, namely, ring network (dual power) and terminal, and it has the basic functions of civil engineering substation.


                2. Small investment for users, small occupied area for box-type substation, simple and convenient installation, and speedy power supply

                Small amount of investment capital: the required capital is less than that of the European-style box-type transformer or civil engineering substation.

                Simple and convenient installation: The site staffs are required to only tighten the four mounting bolts and connect the coil-in and coil-out cables and the grounding line of the elbow-type arresters.

                Speeding up Power Supply: it is only required that the capacity of the transformers should be determined when they are installed, and the order can be made provided that the calculation of short-circuit current, dynamic stability and relay protection and other parameters are not necessary to provide.


                3. Safe and Reliable Power Supply

                The American Box-type Transformer adopts fully closed design with three-point grounding. There are no conductive components on the shell surface, nor insulation distance, which can ensure the personal safety. The high voltage incoming line adopts the fully insulated elbow-type cable head which is easy to plug and unplug. The insulated joystick is used for operation, which can better ensure personal safety.


                4. Simple and Convenient Maintenance

                The pluggable fuses, cable plugs and the elbow-type lightning arrester structure makes the replacement very convenient. The fully enclosed transformer prevents the insulating oil of transformer from contacting with the air, and 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 ordering party should provide us with the following data concerning the products:

                A.Product model;

                B.Operating conditions;

                C.Types and capacity of the transformer;

                D.High voltage and low voltage main wiring program and selection of types and parameters of electrical components for use;

                E.Shell Color

                F. In case of other requirements, the users can put forward when ordering.

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