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GXQ ( B ) J -7.2-126kV全預(yù)制電容型屏蔽筒

發(fā)布時(shí)間:2024-06-24 14:10 瀏覽次數(shù):3277

GXQ ( B ) J -7.2-126kV全預(yù)制電容型屏蔽筒

GXQ (B) J -7.2-126kV fully prefabricated capacitive shielding barrel


1.全屏蔽復(fù)合絕緣管型母線(xiàn)規(guī)格型號(hào)說(shuō)明

Specifications and models of fully shielded composite insulated tubular busbars


例1:GXQJ-35/3150代表復(fù)合絕緣管型母線(xiàn),全絕緣結(jié)構(gòu),額定電壓35kV,額定電流3150 A 。

Example 1: GXQJ-35/3150 represents composite insulated tubular bus, fully insulated structure, rated voltage 35kV, rated current 3150 A.

例2:GXBJ-10/4000代表復(fù)合絕緣管型母線(xiàn),半絕緣結(jié)構(gòu),額定電壓10kV,額定電流4000A。

Example 2: GXBJ-10/4000 represents composite insulated tubular busbar, semi-insulated structure, rated voltage 10kV, rated current 4000A.

2.產(chǎn)品結(jié)構(gòu)  Product Structure

全蔽復(fù)合絕緣管型母線(xiàn)以聚酯材料為主絕緣,應(yīng)用電容均壓原理,采用全機(jī)械繞包工藝在管型導(dǎo)體外表面制做絕緣。

The fully shielded composite insulated tubular bus is mainly insulated with polyester material, and the principle of capacitance equalization is applied, and the all-mechanical wrapping process is used to make insulation on the outer surface of the tubular conductor.

結(jié)構(gòu)如下圖  The structure is as follows:

(1)總體結(jié)構(gòu)  Overall structure

(2)絕緣截面結(jié)構(gòu)  Insulated cross-section structure


(3)絕緣制作   Insulation production 

直管母線(xiàn)機(jī)械繞包(單根母線(xiàn)最大繞包長(zhǎng)度為18米)

Mechanical wrapping of straight tube bus (maximum taping length of a single bus is 18 meters)

彎管母線(xiàn)機(jī)械繞包(可實(shí)現(xiàn)多角度繞包)

Mechanical wrapping of bent bus (multi-angle wrapping can be realized)


(4)導(dǎo)體連接  Conductor connection

 a 、焊接連接:采用內(nèi)襯式補(bǔ)強(qiáng)襯管,焊接坡口大于兩倍導(dǎo)流體壁厚,焊接一體成型。

Welded connection: the lining reinforcing liner is adopted, the welding groove is greater than twice the wall thickness of the fluid conduction, and the welding is integrally formed.

             鋁管焊接前                                                鋁管焊接打磨后

 Before welding of aluminum tubes           After the aluminum tube is welded and polished


              銅管焊接前                                                銅管焊接打磨后

        Before copper pipe welding                              After the copper pipe is welded and polished



b 、內(nèi)嵌式機(jī)械連接:采用內(nèi)嵌式中間連接器對(duì)導(dǎo)流體進(jìn)行連接,導(dǎo)流體內(nèi)壁及中間連接器外表面經(jīng)精密機(jī)械加工,接觸面緊密配合。

Embedded mechanical connection: The embedded intermediate connector is used to connect the conductive fluid, and the inner wall of the diversion and the outer surface of the intermediate connector are precision machined, and the contact surface is closely matched.


c 、可伸縮軟連接:母線(xiàn)接頭位置采用軟銅箔或銅編織線(xiàn)軟連接方式連接,適用于抵消單段較長(zhǎng)母線(xiàn)(50~60米)的熱脹冷縮效應(yīng)。

Retractable soft connection: The position of the bus joint is connected by soft copper foil or copper braided wire, which is suitable for counteracting the thermal expansion and cold contraction effect of a single section of long bus (50~60 meters).

(5)母線(xiàn)中間連接部位絕緣結(jié)構(gòu)  

 Insulation structure of the middle connection part of the busbar

 a 、全預(yù)制電容型絕緣屏蔽筒結(jié)構(gòu) 

Fully prefabricated capacitive insulated shielding tube structure

全預(yù)制電容型絕緣屏蔽筒采用與母線(xiàn)端部梯差相反的電容屏結(jié)構(gòu),安裝時(shí),屏蔽筒與母線(xiàn)電容屏電氣連通。屏蔽筒內(nèi)可用多種方式連接母線(xiàn)導(dǎo)體。結(jié)構(gòu)如下圖:

The fully prefabricated capacitive insulated shielding tube adopts a capacitive screen structure that is opposite to the ladder difference at the end of the bus, and when installed, the shielding tube is electrically connected with the bus capacitive screen. The bus conductor can be connected in a variety of ways in the shield barrel. The structure is as follows:

導(dǎo)體焊接方式全預(yù)制電容型絕緣屏蔽筒結(jié)構(gòu)

The conductor welding method is fully prefabricated capacitive insulated shielding tube structure

導(dǎo)體焊接方式全預(yù)制電容型絕緣屏蔽筒結(jié)構(gòu)

The conductor welding method is fully prefabricated capacitive insulated shielding tube structure

全預(yù)制電容型絕緣屏蔽筒  Fully prefabricated capacitive insulated shielding cylinder


導(dǎo)體軟連接方式全預(yù)制電容型絕緣屏蔽筒結(jié)構(gòu)

The conductor soft connection method is fully prefabricated capacitive insulated shielding tube structure


可伸縮型全預(yù)制電容型絕緣屏蔽筒

Retractable fully prefabricated capacitive insulated shielding cylinder

全預(yù)制電容型絕緣屏蔽筒在廠(chǎng)內(nèi)檢測(cè)各項(xiàng)電氣指標(biāo),質(zhì)量完全受控?,F(xiàn)場(chǎng)安裝快捷,受環(huán)境影響小。可有效保證施工質(zhì)量及工期。

The fully prefabricated capacitive insulated shielding cylinder is tested in the factory for various electrical indicators, and the quality is completely controlled. On-site installation is quick and less affected by the environment. It can effectively ensure the construction quality and construction period.

全預(yù)制電容型絕緣屏蔽筒廠(chǎng)內(nèi)繞包

Fully prefabricated capacitive insulated shielding cylinder in-factory wrapping


(6)端部結(jié)構(gòu)  End structure

 a 、導(dǎo)體端部壓接  Conductor end crimping

接線(xiàn)端子液壓一體成型的管型母線(xiàn)

Tubular busbar with hydraulic integral terminal blocks


全屏蔽復(fù)合絕緣管型母線(xiàn)端部是采用特殊工藝將導(dǎo)流體(銅、鋁管)端部直接壓扁、打孔制做,其各電流等級(jí)的端子尺寸皆符合國(guó)標(biāo)GB5237要求。

The end of the fully shielded composite insulated tubular bus is made by directly flattening and punching the end of the conductive fluid (copper and aluminum tube) by a special process, and the terminal sizes of each current level meet the requirements of the national standard GB5237.

 b 、母線(xiàn)端部均壓結(jié)構(gòu)   Equalizing structure at the end of the busbar

全屏蔽復(fù)合絕緣管型母線(xiàn)端部,零屏、中間電容屏、接地屏端部呈階梯狀設(shè)置,以起到分散電場(chǎng)的作用。產(chǎn)品端部無(wú)需另外加裝半導(dǎo)電應(yīng)力錐分散電場(chǎng)。結(jié)構(gòu)如下圖:

The ends of the fully shielded composite insulated tubular bus, the ends of the zero screen, the intermediate capacitive screen and the grounding screen are set in a stepped manner to play the role of dispersing the electric field. There is no need for a semi-conductive stress cone at the end of the product to disperse the electric field. The structure is as follows:

母線(xiàn)端部電容屏結(jié)構(gòu)   Capacitive screen structure at the end of the busbar


母線(xiàn)端部電容屏結(jié)構(gòu)實(shí)物  The capacitive screen structure at the end of the busbar is in kind

該端部均壓結(jié)構(gòu)來(lái)源于高壓電氣產(chǎn)品,具有均勻電場(chǎng)能力強(qiáng)、與母線(xiàn)主絕緣制做工藝一致、可逐根進(jìn)行電氣檢測(cè)、無(wú)需額外均壓方案。

The end voltage equalization structure is derived from high-voltage electrical products, which has strong uniform electric field ability, is consistent with the main insulation process of the busbar, and can be tested one by one without additional voltage equalization scheme.


3.產(chǎn)品特點(diǎn)  Features


 a 、同類(lèi)產(chǎn)品共有特點(diǎn)  Similar products share characteristics


載流量大、溫升低、集膚效應(yīng)小、散熱性能好。


Large current carrying capacity, low temperature rise, small skin effect, good

headissipationperformance.


機(jī)械強(qiáng)度高,允許應(yīng)力為矩形母線(xiàn)的4倍,安裝跨距大。


The mechanical strength is high, the allowable stress is 4 times that of the rectangular bus

bar, and the installation span is large.


電氣絕緣性能可靠,不需要穿墻套管及支柱絕緣子等附件。


Reliable electrical insulation, no accessories such as wall sleeves and post insulators are 

required.


敷設(shè)節(jié)省空間,可架空敷設(shè)、電纜溝敷設(shè)、夾層敷設(shè)、隧道敷設(shè)、垂直敷設(shè)等多種敷設(shè)方式。


The laying saves space and can be laid in a variety of ways, such as overheadlaying, cable 

trench laying, mezzanine laying, tunnel laying, vertical laying, etc.


安裝方便、外形美觀(guān)、免維護(hù)。


Easy to install, beautiful in appearance, maintenance-free.


廠(chǎng)家提供從母線(xiàn)前期設(shè)計(jì)、生產(chǎn)加工、現(xiàn)場(chǎng)安裝全程服務(wù),屬于"交鑰匙"工程。


The manufacturer provides full service from the pre-design, production and processing, and

 on-site installation of the bus, which is a "turnkey" project.




 b 、我公司產(chǎn)品的獨(dú)特優(yōu)勢(shì)  The unique advantages of our company's products


產(chǎn)品采用電容均壓原理,直段和彎段母線(xiàn)均采用機(jī)械繞包,絕緣工藝一致,質(zhì)量可靠,性能優(yōu)異。


The product adopts the principle of capacitance equalization, and the straight and cubus bars are mechanically wrapped, with consistent insulation process, reliable quality and 


excellent performance.


產(chǎn)品絕緣水平高,局部放電在1.5Ur電壓下小于5pC,高于行業(yè)標(biāo)準(zhǔn) Ur 電壓下小于5pC。


The product has a high insulation level, and the partial discharge is less than 5pC at 1.5Ur 

voltage, which is higher than the industry standard of less than 5pC at your voltage.


母線(xiàn)導(dǎo)體端部液壓一體成型,中間連接采用焊接工藝(或內(nèi)嵌式連接器),載流能力強(qiáng),溫升低。


The end of the bus conductor is hydraulically integrally formed, and the intermediate connection 


adopts the welding process (or inline connector), which has strong current 


carrying capacity and low temperature rise.


母線(xiàn)中間絕緣,采用全預(yù)制電容型絕緣屏蔽筒,外表地電位,工廠(chǎng)化生產(chǎn),電氣指標(biāo)完全受控。


The middle insulation of the bus bar is made of fully prefabricated capacitive insulated shielding cylinder, 

the surface and ground potential, factory production, and the electrical indicators are completely controlled.


單根母線(xiàn)最長(zhǎng)可達(dá)18m,中間接頭少,安全可靠性高,生產(chǎn)周期短。


The longest length of a single bus bar is 18m, with few intermediate joints, high safety and reliability, 

and short production cycle.


可向高壓及超高壓固體絕緣母線(xiàn)方向發(fā)展。


It can be developed in the direction of high-voltage and ultra-high-voltage solid insulated bus.


4.適用范圍  Scope of application

變壓器至開(kāi)關(guān)柜連接  The transformer is connected to the switchgear

開(kāi)關(guān)柜至開(kāi)關(guān)柜連接   Switchgear-to-switchgear connection

開(kāi)關(guān)柜至電抗器連接   Switch cabinet to reactor connection

發(fā)電機(jī)至開(kāi)關(guān)柜連接   Generator-to-switch cabinet connection

5.技術(shù)參數(shù)  Technical parameters

額定電壓  Rated voltage:7.2~126kV

額定電流  Current rating:630~8000A

額定頻率  Rated frequency:50(60) Hz 

6.敷設(shè)方式  Laying method

架空敷設(shè)  Overhead laying

電纜溝敷設(shè)  Cable trench laying

電纜夾層敷設(shè)  Cable mezzanine laying

隧道敷設(shè)  Tunneling

垂直敷設(shè)  Vertical laying

包含上述兩種或以上的混合敷設(shè) Contains two or more of the above mixed lays

7.環(huán)境條件  Environmental conditions

環(huán)境溫度  Ambient temperature:-50℃~+45℃

最大日溫差  Maximum daily temperature difference:25℃

相對(duì)濕度:日平均值不大于95%,月平均值不大于90%

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

 more than 90%

海拔高度:不超過(guò)1000m(超過(guò)1000m時(shí)需要進(jìn)行海拔校驗(yàn))

Altitude: no more than 1000m (altitude verification is required when exceeding 1000m)

地震強(qiáng)度:按GB50260的要求,地震設(shè)防烈度為8度(設(shè)計(jì)基本地震加速度值不超過(guò)0.2g)

Seismic intensity: According to the requirements of the GB50260, the seismic fortification 

intensity is 8 degrees (the design basic seismic acceleration value does not exceed 0.2g)

防污等級(jí)  Stain resistance rating:> II 級(jí)

8.主要性能  Key features

產(chǎn)品滿(mǎn)足 DL / T 1658《35kV及以下固體絕緣管型母線(xiàn)》、 Q /GDW11646《7.2kV-40.5kV絕緣管

型母線(xiàn)技術(shù)規(guī)范國(guó)家電網(wǎng)公司企業(yè)標(biāo)準(zhǔn)》的要求。

The product meets the requirements of DL / T 1658 "35kV and below solid insulated tubular

 bus" and Q / GDW11646 "7.2kV-40.5kV insulated tubular bus technical specification State 

Grid Corporation Enterprise Standard".

(1)絕緣水平及局部放電水平  Insulation level and partial discharge level



(2)介質(zhì)損耗因數(shù)  Dielectric dissipation factor

10kV電壓下測(cè)量,介質(zhì)損耗因數(shù)不大于0.005(測(cè)試度10~40℃)

Measured at 10kV voltage, the dielectric loss factor is not more than 0.005 (test degree 10~

40°C)

(3)溫升限值  Temperature rise limits

最高溫升不大于50K  The maximum temperature rise is not more than 50K

(4)短時(shí)熱電流、動(dòng)穩(wěn)定電流  Short-term thermal current, dynamic and stable current


9.導(dǎo)體規(guī)格  Conductor specifications

在額定電壓、額定電流相同的情況下選用鋁合金為導(dǎo)體的產(chǎn)品比選用銅為導(dǎo)體的產(chǎn)品節(jié)約大概30%-

40%的材料成本。

In the case of the same rated voltage and rated current, the product with aluminum alloy as

 the conductor saves about 30%-40% of the material cost compared with the product with 

copper as the conductor.



11.驗(yàn)收及維護(hù)  Acceptance and maintenance

每根全屏蔽復(fù)合絕緣管型母線(xiàn)出廠(chǎng)前均進(jìn)行了工頻耐壓、局部放電測(cè)量、介質(zhì)損耗因數(shù)測(cè)量。產(chǎn)品到

現(xiàn)場(chǎng)后,可以按GB50150《電氣裝置安裝工程電氣設(shè)備交接試驗(yàn)標(biāo)準(zhǔn)》進(jìn)行。全屏蔽復(fù)合絕緣管型母

線(xiàn)基本不需要維護(hù),每2~3年進(jìn)行一次耐壓和電容量及介質(zhì)損耗因數(shù)測(cè)量即可。

Each fully shielded composite insulated tubular busbar has been measured by power 

frequency withstand voltage, partial discharge and dielectric loss factor before leaving 

the factory. After the product arrives at the site, it can be carried out in accordance with 

the GB50150 "Electrical Equipment Handover Test Standard for Electrical Installation 

Engineering". The fully shielded composite insulated tubular bus basically does not need

 maintenance, and the withstand voltage, capacitance and dielectric dissipation factor can

 be measured every 2~3 years.

12.運(yùn)輸及安裝  Transportation and installation

出廠(chǎng)時(shí)各段全屏蔽復(fù)合絕緣管型母線(xiàn)分別編號(hào),便于現(xiàn)場(chǎng)安裝。

When leaving the factory, each section of fully shielded composite insulated tubular bus is 

numbered separately, which is convenient for on-site installation.

運(yùn)輸時(shí)用防震材料包裝,防止劇烈震動(dòng)。

Packed with shockproof material during transportation to prevent severe vibration.

出廠(chǎng)文件包括:產(chǎn)品合格證、試驗(yàn)報(bào)告和產(chǎn)品說(shuō)明書(shū)。

The factory documents include: product certificate, test report and product manual.

安裝好后應(yīng)將全屏蔽復(fù)合絕緣管型母線(xiàn)的末屏引線(xiàn)可靠接地。

After installation, the end screen lead of the fully shielded composite insulated tubular bus 

should be reliably grounded.

13.訂貨須知  Ordering instructions

訂貨時(shí)至少需提出下述參數(shù):

At least the following parameters should be provided when ordering:

電氣參數(shù):額定電壓、額定電流、短時(shí)熱電流、動(dòng)穩(wěn)定電流、絕緣水平。

Electrical parameters: rated voltage, rated current, short-time thermal current, dynamic 

stable current, insulation level.

環(huán)境參數(shù):環(huán)境溫度、海拔高度、污穢等級(jí)。

Environmental parameters: ambient temperature, altitude, pollution level.

敷設(shè)方式:架空敷設(shè)、電纜溝敷設(shè)、電纜夾層敷設(shè)、豎直敷設(shè)、混合敷設(shè)。

Laying methods: overhead laying, cable trench laying, cable sandwich laying, vertical laying, 

mixed laying.

供貨范圍:變壓器至開(kāi)關(guān)柜連接、開(kāi)關(guān)柜至開(kāi)關(guān)柜連接、開(kāi)關(guān)柜至電抗器連接、發(fā)電機(jī)至

開(kāi)關(guān)柜連接。

Scope of supply: transformer to switch cabinet connection, switch cabinet to switch cabinet 

connection, switch cabinet to reactor connection, generator to switch cabinet connection.

特殊附件:避雷器、放電次數(shù)計(jì)數(shù)器、避雷器在線(xiàn)監(jiān)測(cè)儀、接地鉤、相間絕緣隔板、端部

防護(hù)罩。

Special accessories: lightning arrester, discharge number counter, lightning arrester online

 monitor, grounding hook, phase insulation partition, end protective cover.









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