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创新推进变革
根据规定验证试验进行设计验证的成套电力开关设备和控制设备
水平母线统一安排在开关柜的上方
三极和四极水平母线系统其额定电流可至7400a
额定峰值耐受电流ipk可至375ka
器件隔室可按模数结构分割成不同的单元
开关柜可单面安装,也可以背靠背安装
进线可采用上进线或下进线
出线电缆可在柜体前部连接或后部连接
featurelow-voltage switchgear and controlgear assembly (design verification)
standardized busbar position at he top of cubicle
3- and 4- pole busbar system uo 7400a
rated peak withstand current ipkup to 375ka
modular structure of device departments
single front and back- to- back installation
cable lead-in from above or below
cable connection from the front or rear
技术参数 technical data额定绝缘电压(ui)
rated insulation voltage(ui)
v
up to 1000
额定操作电压(ue)
rated operating voltage(ue)
v
up to 690
额定频率
rated frequency
hz
50/60
额定冲击耐受压(uimp)
rated impulse withstand voltage (uimp)
kv
8
过电压类别
overvoltage catgory
iii
污染等级
pollution degree
3
主母排额定电流(in)
main busbars rated currents (in)
a
up to 7400
额定峰值耐受电流(ipk)
rated peak withstand current (ipk)
ka
up to 375
额定短时耐受电流(icw)
rated short-time withstand current (icw)
ka
up to 150, 1s
防护等级
degree of protection
up to ip54
内部分隔型式
form of internal separation
up to form 4
通过型式试验的低压开关柜(tta)
type-tested low-voltage switchgear and controlgear assembly (tta)
iec 61439-2/gb7251.12
防电压保护
protection against electric shock
din en 50274
内部燃弧试验 (内部电弧故障)
testing of behaviour in case of internal faults (internal arc faults)
iec 61641, gb/z 18859