JUCA-40.5/2000/2500-31.5 (JUC61086D/JUC61086E)

主要技术参数MainTechnicalParameters

项⽬ Items	数值 Value
额定电压 Rated voltage	40.5kV
额定电流 Rated current	2500/2000A
额定频率 Rated frequency	50/60Hz
额定短路开断电流 Rated short circuit breaking current	31.5kA
额定短路开断电流开断次数 Breaking operations under rated short circuit breaking current	30 times
最⼤直流分量 Max.DC-component	40%
额定短路关合电流 Rated short circuit making current	80kA
额定峰值耐受电流 Rated withstand current(peak value)	80kA
额定短时耐受电流（4秒） Rated short time withstand current (4s)	31.5kA
额定单个电容器组开断电流 Rated breaking current of single capacitor bank	※630A
额定背对背电容器开断电流 Rated breaking current of back to back capacitor bank	※400A
额定短时⼯频耐受电压(1min) Rated power frequency withstand voltage	*95kV
额定雷电冲击耐受电压（峰值） Rated lightning impulse withstand voltage(peak value)	*185kV
额定触头压⼒下限时的回路电阻 Circuit resistance at lowest rated contaCTs force	≤20μΩ
机械寿命 Mechanical life	20000 times
触头⾃闭⼒ Closing force due to bellows and atmosphere	200±60N
额定开距下触头反⼒ Force required to hold contacts opening at full stroke	300±60N
触头允许磨损厚度 Limiting abrasion of contacts	3mm
贮存期 Storage life	20 years
质量/动触头质量 Total mass of interruPTer/moving mass of interrupter	9.6/3.0kg
额定操作顺序 Rated operating sequence	0-0.3s-CO-180s-CO

配⽤的真空断路器的机械参数Mechanicalrequirementsofvacuumcircuitbreaker

项⽬ Items	数值 Value
触头开距 Clearance between opening contacts	19±1mm
触头接触⾏程 Contact connection stroke	6±2mm
平均分闸速度(0-8mm⾏程) Average opening speed(0-8mm stroke)	1.4±2.0 m/s
平均合闸速度(8mm-触头闭合) Average closing speed(8mm-contact making)	0.8±1.2 m/s
触头初压⼒ Added external contact force at contact touch point	≥2100N
额定触头压⼒ Rated contacts pressure	₃₁₀₀+1400 -200N
触头合闸弹跳时间 Contacts bouncing duration at closing operation	≤5ms
触头分合闸不同期 Out of simultaneity of contact closing and opening	≤2ms
触头分闸反弹幅值 Contacts re-bouncing clearance at opening operation	≤2mm
分闸触头过冲幅值 Synchronism of three phases	≤2mm