适用范围 Application scope
GGD型低压固定式成套开关设备适用于发电厂、变电所、工矿企业等电力用户作为交流50Hz,额定工作电压400V额定电流至3150A的配电系统中作为动力，照明及配电设备的电能转换、分配与控制之用。该产品分断能力高，额定短时耐受电流达50kA。线路方案灵活、组合方便、实用性强、结构新颖等特点。该产品是我国组装式、固定面板开关柜的代表产品之一。
GGD type low-volage fixed svichgear plils for powerplants, ubstations, indutrial and mining enterpises and other poweruses withAC 50Hz,rated voliage400V andra edcurent to 3150A of distributio system as power ,lighting and power ditribution ecquipment fo power conversion dstriudion and conrol purposes. This produthas hg brakingcapacity and is rated shrt-time withstand carrent can reach up to50k4.The crctit chemehas the characteritios of fextilty cowvenmient combination,stong practiabilty andnovel structure.This product is one of the representative products of assembled and fixed panel switch cabinets in China.
本产品符合:GB7251.1《低压成套开关设备和控制设备》、IEC60439.1《低压成套开关设备和控制设备》等标准。
This product meet the Standards of GB7251.1Low-vollage Swichgear and Control Equipment and IEC60439.1Low-voliage Swichgear and Control Equipment.
使用环境条件 Application environment condition
1.坏境温度:24h内的平均温度不高于+35T:
1.Ambient temperature: the average temperature within 24h is not higher than +35T:
2..海拔高度:2000m及以下。
2.Altitude: 2,000m and below;
3.相对湿度:在最高温度为+40℃时不超过50%，在较低温度时允许有较大的相对湿度:(例如+20℃时为90%)应考虑到由于温度的变化可能会偶然产生凝露的影响。
3.Relative urmidity: under the maximum temperature of 4 ℃,the relative humidit isless than50%, ighrelatve uridity is al wed in low temperature.(0%deges of 2o0Cfor example) it should be considered that the effect of condensation may occasionally occur due to temperature changes.
4.设备安装时与垂直面的倾斜度不超过5°。
4.The inclination of the equipment installation and vertical surface is not more than 5° .
5.设备应安装在无剧烈振动和冲击的地方，以及不足以使电器元件受到腐蚀的场所。
5.The equipment shall be intalled in places where there is no severe vibration, no shock, and insuiicient con.dition for electrical components corrsion.注:用户有特殊要求时可与本公司协商解决。Note: Negotiate with manufacturer when user has special requirements。
产品结构及其特点 Product structure and its characteristics
GGD型交流低压配电成套开关设备的柜体采用通用柜的形式，框架用8MF型材组装而成，框架零件及专用配套零件由本公司生产配套供货，以保证柜体的精度和质量。通用柜的零部件按模块原理设计，并有20模数的安装孔，通用系数高。可以使工厂实现预生产。既缩短了生产制造周期，也提高了工作效率。
Cabinet ype GGD AC low-volage distribution swichgear abinet adops the general fom of MFframewrk in secton assembly, and the frame pars and speclalacessory pansare suppored by the company , in oroer o ensure the accuracy and qu t .The componens ofthe general cabinetare dosigne ac.rdngtotheprincpeof hemodue winh 20modulus mounting holes, which has high universal coeFicient is.Pre-producion can berealized in the factoy, which not only shortens the poduction cy le, but also improes thework efficiency.
GGD柜设计时充分考虑到柜体运行中的散热问题。在柜体上下两端均有不同数量的散热槽孔，当柜内电器元件发热时，热量上升，通过上蟭槽孔排出，而冷风不断地由下端槽孔补充进柜，使密封的柜体自下而上形成一个自然通风道，达到散热的目的。
In the design of GGD cabinet, the heat dissipation of the cabinetis taken no fll consideration. Diferent number ofradeatng sots are desi ned in the uppr and ower ends whenthe eloctical components n the cabinetare heated,the heat rses and is discharged through the upper sot whie thecod air iscontiouously adoed fom the lower sot to the
cabinet, so that the sealed cabinet body forms a natural ventilation channel fom bottom to top,so as to achieve the purpose of heat dssipation
GGD柜按照现代工业产品造型设计的要求，采用黄金分割比的方法设计柜体外形和各部分的分割尺寸，使整柜美观大方。
GGD cabinet adopts the method of goden secionratio o design the shape of the cabinet body and thesegrmentaion ize of each par in accodance with the requirements ofmodern industrial product modeling design, so that the whole cabinet is beautiful and generous.
柜门用转轴式活动饺链与构架相连、安装、拆卸方便。
