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KYN28A-12(GZS1)金属铠装移开式开关设备，适用于三相交流50H、12kV单母线及单母线分段电力系统。用于接受和分配电能并对电路实行控制、保护及检测。本开关设备符合IEC-60298、GB3906、DL404等标准。KYN28A-12(GZS1) metal-clad withdrawable switchgear is suitable for 3-phase AC 50Hz、12kV single busbar and single busbar section system, is used for accepting and distributing electricity power and implement system control,protection,supervision,monitoring.The switchgear comply with the standards IEC298, GB3906, DL404. 目录/CONTENT
型号及含义/TYPE AND DESIGNATION1使用环境/OPERATING CONDITIONS 2特点/CHARACTERISTIC 3技术参数/TECHNICAL DATA 4 结构介绍/CONSTRUCTION 5主要元件/MAIN COMPONENTS 6一次方案/PRIMARY SCHEMES 7安装/INSTALLATION 8
1型号及含义/Type and Designation 2使用环境/Operating Conditions
环境温度：上限+40℃，下限-10℃
海拔高度：不超过1000m； 相对湿度：日平均值≦95%，月平均值≦90%； 地震烈度：不超过8度。
没有火灾，爆炸危险，严重污秽，化学腐蚀及 剧烈震动的场所。 Ambient +40℃， -10℃.
Altitude:1000m(max).
Relative humidity:daily average less than 95%, monthly less than 90%.
hock of earthquake:less than 8 magnitude. This product should not be used under conditions of fire, explosion, earthquake
采摘网and chemical corrosion environments.
3特点/Characteristic
完全金属铠装及封闭，能有效地防止事故扩散。 低压部分和高压部分完全隔离。 关门后防护等级达IP4X，可有效防止人体和外界固体接近带电体和运动部分，保证人身安全和设备可靠运行。一个圆柱形玻璃容器
简单而有效地联锁，防止误操作。
电缆室有充裕的空间，可连接多根电缆，安装，维修方便。 手车互换性好，更换断路器非常简便。 Metal-cald and partition completely, efectively pre- vent faults spreading.
The low voltage section is completely separated from the high voltage sections.
Enclosure protection degree is IP4X, protect against electric shock and ingress of solid foreign bodies.
Simple but effective interlocking prevents maloperation.
Installation and maintenance is convenient, space is provided for multiple cable connections.单相轴流风机
Withdrawble part of the same design are mutually interchangeable, anexchange of VCB is very simple.
4技术参数/Technical Data
数据Data
项目
Item 单位
Unit 断路器柜
VCB
F-C柜
F-C
额定电压
Rated voltage
kV 12 12
1min工频耐压
Rated power-frequency withstand
kV 42 42
雷电冲击耐压
Rated lightning impulse withstand
kV 75 75
额定频率
Rated frequency
Hz 50 50
主母线额定电流
Main busbar rated current
A ...4000 (4000)
分支母线额定电流
Branchal busbar rated current
A ...4000* (400)
额定短时耐受电流（有效值）4秒
Rated short-time withstand current
kA ...40 4kA/4s
额定峰值耐受电流
Rated peak withstand current
kA ...100 10
外壳防护等级
无线通信系统Enclosure protection level
IP4X IP4X
*：3150A及以上断路器室采取强迫风冷
Enforced cooling is necessary when the current is over and including 3150A of VCB
**：电流互感器的热稳定和动稳定电流与变化有关，在订货时作具体确认。
Rated short-time withstand current and rated peak withstand current of current transformers are relate to rated transformation ratio, affirm when ordering.
5结构介绍/Construction
本开关设备由柜体和手车两大部分组成。
柜体是由螺栓组装而成，其外壳和内部隔板采用覆铝锌钢板。柜体由四个不同的功能单元组成，分别是手车室、母线室、电缆室、继电器仪表室。可移开单元根据用途可分为： 1.断路器手车tmaii
2.电压互感器手车
3.隔离手车
4.计量手车
5.熔断器手车 The basic structure of the switchgear panel comprises
the panle itself and withdrawable part.
The panel is constructed by bolting together.Enclosure
and internal partition are made of aluminum and zinc.
The panel consists of four separate compartments, that is
truck compartment, busbar compartment, cable compartment, and low-voltage compartment.Withdrawable part can be classified by
function to :
1.VCB truck
2.PT turck
3.Disconnect truck
4.Metering truck
5.HV fuse truck
双面维修型柜内结构示意图/Section view, double maintenance structure
512346
98D
C
7
A.母线室
B.断路器室
C.电缆终端室
D.继电器仪表室 1.母线 2.静触头盒 3.断路器 4.接地开关 5.电流互感器 6.电缆终端
7.控制和保护单元 8.压力释放板 9.二次航空接插件
A.Busbar compartment毛豆剥壳机
B.Truck compartment
C.Cable compartment
D.Low-voltage compartment 1.Busbar 2.Bush 3.VCB
4.Earthing switch
5.Current transformer
6.Cable terminal
7.Control and protect unit 8.Pressure-relief plate 9.Control wiring plug
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