Page 63 - 山东开川电力设备有限公司

GCS
低压抽出式开关柜
Low-voltage withdrawable switchgear

型号及含义/Type and meaning 性能指标/Performance

G C S - □ - □ 装置的设计符合下列标准
IEC439-1 低压成套开关设备和控制设备
GB7251 低压成套开关设备
主电路方案号/Scheme No. of main circuit ZBK360001 低压抽出式成套开关设备
辅助电路方案号/Scheme No. of auxiliary circuit
电气系统/Electrical system The design of the device complies with following standards:
抽出式/Withdraw type IEC439-1LV complete set switchgear and control gear
封闭式开关柜/Enclosed cabinet GB7251 LV complete set switchgear
ZBK360001 LVwithdraw complete set switchgear

基本参数/Basic data

主电路额定电压(V) 交流380(400)、(660)
Rated voltage of main circuit AC 380 (400), (660)
交流220、380(400) 直流110/220
辅助电路额定电压(V) Rated voltage of auxiliary circuit (V)
AC 220,380 (400) DC 110/220
额定频率(Hz) Rated frequency (Hz) 50(60)
额定绝缘电压(V) Rated insulation voltage (V) 660(1000)
额定电流(A) 水平母线 Horizontal busbar ≤4000
Rated current (A) 垂直母线(MCC) Vertical busbar (MCC) 1000
母线额定短时耐受电流(kA/1s) Rated short time withstand current of busbar (kA/1s) 50,80
母线额定峰值耐受电流(kA/0.1s) Rated peak withstand current (kA/0.1s) of busbar 105,176
工频试验电压(V/1min) 主电路Main circuit 2500
P.f. test voltage (V/1min) 辅助电路Auxiliary circuit 1760
母线 三相四线制 Three-phase four wire system A，B，C，PEN
Busbar 三相五线制 Three-phase five wire system A，B，C，PE，N
防护等级Protection grade IP30，IP40

装置特点/Features of the device

● 提高转接件的热容量，较大幅度的降低由于转接件的温升给接插件、电缆头、间隔板带来的附加温升；
● 功能单元之间、隔室之间的分隔清晰、可靠，不因某一单元的故障而影响其它单元工作，使故障局限在最小范围；
● 母线平置式排列使装置的动、热稳定性好，能承受80/176kA短路电流的冲击；
● MCC柜单柜的回路数量多到22回，充分考虑大单机容量发电，石化系统等行业自动化电动门(机)群的需要；
● 装置与外部电缆的连接在电缆隔室中完成，电缆可以上下进出。电流互感器装置于电缆隔室内，使安装维修方便；
● 同一电源配电系统，可以通过限流电抗器匹配限制短路电流，稳定母线电压在一定的数值，还可部分降低对元器件短路强度的要求；
● 抽屉单元有足够数量的二次插接件(1单元及以上为32对，1/2单元为20对)，可满足计算机接口和自控回路对接点数量的要求。
● Improve thermal capacity of the transfer parts and reduce the temperature rise of the insertion parts, cable end and barrier due to temperature rise of
the transfer parts. ；
● The segregation between units and between compartments is clear and reliable and limit thee fault in the min. range ；
● Paralle layout of the busbar makes good short time and peak withstand current and can withstand the impulse of short circuit current at 80/176kA；
● The circuit number of single MCC cabinet is up to 22 circuits and considers fully the need of single unit generation and automatic electric door of oil and
chemical industries etc；
● The connection of the device with external cable is finished in the cable compartment and the cable can inlet and out let .Th current transformer is
arranged in the cable compartment for the convenience of installation and maintenance；
● The distribution system with same power can limit short circuit current through limit reactor and stabilize bus voltage to a certain value and can also
reduce partially the requirement of short circuit strength of elements;
● The draw unit has sufficient secondary insertion parts ( 1 unit and above is 32 paris and 1/2 unit is 20 pairs) and an meet contact number requirement
of computer interface and automatic control circuit .

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