产品概述 Product description
IVD电容器设计用于低压网络中的功率因数校正（PFC）。它们可用于：
-电机，变压器等的单独固定PFC
-自动PFC设备
-调谐和失谐的电容器组
IVD-C电容器具有三个独立的金属化聚丙烯膜绕组，分别位于圆柱铝罐中。内部以星形或三角形连接。使用三个独立的堆叠绕组可确保低损耗，具备优异的浪涌电流性能以及绕组的良好散热。绕组的高真空干燥可以在恒定电容的情况下延长使用寿命。
由于开关操作，在低压电网中可能会出现不超过额定电压3倍的电压峰值。如果这些应力引起电介质击穿，则自愈机制将发挥作用。自愈后，电容器继续正常工作。电容容量衰减可以忽略不计。
IVD电容器配有拉断保护。当故障点反复自我修复或任何其他内部故障导致的内部压力上升达到额定值时，拉断保护动作。在这种情况下，铝盖可能会鼓出，并且电容器会在轴向上膨胀。膨胀导致内部连接线断开，电容器从电力系统安全地断开。
电容器内置放电电阻，保证电容器电压在3分钟内放电至36V或以下。
Application
IVD capacitors are designed for power factor correction (PFC) in low voltage networks. They may be used for:
- Individual fixed PFC of motors, transformers, etc.
- Automatic PFC equipment
- Tuned and detuned capacitor banks
Construction
The IVD capacitors have three separate windings from metalized polypropylene film placed in a cylindrical aluminium can. The partial capacitances may be connected either in star or delta configuration. The use of three separate stacked windings guarantees low losses, optimal surge current performance and good heat drain from the windings. A high-vacuum drying of the windings gives long service life with constant capacitance.
The terminal is designed as a double 3-pole terminal block (IP 20).It is possible to clamp multiple-wires with a cross section up to 35 mm2 ．
Due to switching operations, inadmissible voltage peaks of up to 3 times that of the rated voltage can occur in low voltage networks. If these stresses affect a dielectric breakdown, the self-healing mechanism will function. After self-healing, the capacitor continues its complete operation. The decrease in capacitance is negligible.
IVD capacitors are equipped with an overpressure expansion fuse. The fuse operates when the internal pressure rise affected by repeated self-healings on faulty spots or any other internal failure has reached a determined value. In this case the lid of the aluminium can bulge out and the capacitor expands in the axial direction. Due to this expansion the planned fracture in the internal connecting wires break and the power capacitor is disconnected safely from power supply system.
Power capacitors must be discharged in 3 minutes to 36V or less. No switch, fuse or any other isolating device should be between the power capacitor and the discharge device. Power capacitors which are directly connected to other electrical equipment providing a discharge path can be considered as properly discharged, provided that the circuit characteristics ensure the discharge of the power capacitor within the time specified above. IVD capacitors will be delivered with discharge resistors.
技术参数Technical parameter
Rated voltage 230～690V Rated frequency 50/60Hz Capacitance tolerance -5%+10% | Climatic category -25/D Max. ambient temp.: 55℃ Max. ambient temp. over 24h: 45℃ | 额定电压； 230～690V 额定频率 50/60Hz 电容公差 -5%+10% | 气候环境： -25/D 最高环境温度： 55℃ 最高环境温度超过，24h: 45℃ | |
Over voltages Un+10% up to 8h daily Un+15% up to 30 min.daily Un+20% up to 5 minutes Un + 30% up to 1 minute
| Max.ambient temp.over 1year: 35°C Lowest temperature: -45℃ Max. case temperature: 65℃ Humidity Average relative<95% | 过电压 Un+10% 每天高达8小时 Un+15% 每天30分钟 Un+20% 最多5分钟 Un + 30%最多1分钟
| 最高环境温度超过，1年: 35℃ 最低温度： -45℃ 壳体最高温度 65℃ 湿度≤95% | |
Over current 1,5×In (including harmonics) Inrush current Max.200xIn Test voltage terminal/Terminal 2,15×Un AC (2s) Test voltage terminal/case 3,6 kV AC (10s) | Altitude 2000m Cooling Natural or forced Mounting position Vertical / horizontal Installation Indoor | 过电流 1,5×In (含谐波) 励磁涌流 Max.200xIn 测试电压端子/端子 2,15×Un AC (2s) 测试电压端子/外壳 3,6 kV AC (10s) | 海拔 4000m 冷却 自然或强压 安装位置： 垂直/水平安装 安装： 室内安装 | |
Dielectric Polypropylene film, Self-healing Impregnation (filling) Inert insulation gas Losses Dielectric: 0.2W/kvar Total capacitor (50 Hz): < 0.4W/kvar Life expectancy > 150,000 h 5000 switchings per year Standards IEC 60831-1/2 GB/12747-1/2 UL 810 | Case Cylindrical, aluminium Fixing Threaded bolt M12 Max torque(Al can stud):10Nm Terminals Degree of protection: IP20 Terminals cross section: 25mm2, 35mm2 Max. torque: 3 Nm Discharge resistor time: <3 minutes to 36V Safety device Overpressure disconnector | 电介质 聚丙烯薄膜，自愈 填充物 惰性绝缘气体 损失 电介质：0.2W/kvar 总电容器（50Hz）： <0.4W/kvar
预期寿命 >150,000 h 每年5000次开关 标准 IEC 60381-1/2 GB/12747-1/2 UL 810 | 材质： 圆柱形铝 固定： 螺纹螺栓M12、最大扭矩12nm 防护等级： IP20 端子截面： 16mm², 25mm², 35mm² 放电电阻时间： ＜3分钟至36V 安全装置 过压隔离开关
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拉断保护Pull off protection specifications
常用规格表Common specifications
1）三相 50Hz 电压480V
Order code 订购代码 | Rated power 额定功率 | Rated capacitance 额定容值 | Rated current 额定电流 | Weight 重量 | Dimension 尺寸 |
kvar | μF+10/-5% | A | kg | D×H(mm) | |
IVD-C/480/25 | 25 | 3×115.1 | 30.1 | 2 | 116×235 |
IVD-C/480/30 | 30 | 3×138.2 | 36.1 | 2.5 | 116×280 |
2）三相 50Hz 电压525V
Order code 订购代码 | Rated power 额定功率 | Rated capacitance 额定容值 | Rated current 额定电流 | Weight 重量 | Dimension 尺寸 |
kvar | μF+10/-5% | A | kg | D×H(mm) | |
IVD-C/525/25 | 25 | 3×96.2 | 27.5 | 2 | 116×235 |
IVD-C/525/30 | 30 | 3×115.1 | 33 | 2 | 116×280 |
3）1P 50Hz 电压280V
Order code 订购代码 | Rated power 额定功率 | Rated capacitance 额定容值 | Rated current 额定电流 | Weight 重量 | Dimension 尺寸 |
kvar | μF+10/-5% | A | kg | D×H(mm) | |
IVD-C/280/10-1 | 10 | 1×406 | 35.7 | 1.1 | 85×231 |
IVD-C/280/15-1 | 15 | 1×609 | 56.3 | 1.9 | 116×250 |
4）1P 50Hz 电压300V
Order code 订购代码 | Rated power 额定功率 | Rated capacitance 额定容值 | Rated current 额定电流 | Weight 重量 | Dimension 尺寸 |
kvar | μF+10/-5% | A | kg | D×H(mm) | |
IVD-C/300/10-1 | 10 | 1×354 | 33.3 | 1.1 | 85×231 |
IVD-C/300/15-1 | 15 | 1×531 | 49.9 | 1.9 | 116×250 |
★以上仅列出常用型号，其他规格请洽本公司。
