DHE直流支撑DC-link薄膜电容器(铝壳干式）
主要应用/Application
广泛应用于风力、太阳能、新能源汽车、UPS，SMPSs,
逆变电源，焊机电源等设备中起耦合隔直/滤波或DC-link.
产品特点/Characteristics
电介质：聚丙烯薄膜
结构：金属化膜干式结构
封装：金属铝外壳,阻燃(UL 94V-0)环氧封装
引出：镀锡铜螺母或螺杆引出
高稳定性低ESR,ESL具有自愈性
技术性能/Specifications
引用标准/Reference standards | IEC 61071 60068 |
工作温度范围/Operating temperature range | -40~85℃ |
容量范围/Capacitance | 100~2750μF |
额定电压/ Rated Voltage | 900~4000VDC |
容量偏差 /Tolerance | ±5%, ±10% |
极间耐电压 /Test voltage between terminals | 1.5Ur(DC) 10s 25±5℃ |
极壳耐电压/ Test voltage between terminals and case | 3000V 50Hz 60S, 25±5℃ |
损耗角正切/Dissipation factor | tgδ≤1×10-3 at 25±5℃ , 100Hz |
绝缘电阻/Insulation resistance | C*IR≥5000S, at 100VDC,25±5℃,60S |
预期寿命/Life expectancy | 100000h at Ur and 70℃ |
过压运行/Protection against over voltages
1.1×Un | 30%of the service period |
1.15×Un | 30min/d |
1.2×Un | 5min/d |
1.3×Un | 1min/d |
1.5×Un | 100ms no more than 1000 times |
