1. 额定容量 Rated capacitance:? ? ? 电容器容量的设计值,通常在电容器上显示。 ? ? The capacitance value for which the capacitor has been? ? ? designed?and?which is usually indicated upon it.? 2.?类别温度范围 Category temperature range:? ? ? 电容器设计连续工作温度的范围,是由类别温度所定义的。? ? ? The range of ambient temperatures for which the? ? ? capacitor?has?been?designed to operate continuously; This ? ? is defined by the?temperature?limits of the appropriate? ? ? category.? 3. 上限类别温度 Upper category temperature:? ? ? 电容器连续工作下最高的环境温度。 ? ? The maximum ambient temperature for which a capacitor? ? ? has been?designed to operate continuously.? 4.?下限类别温度 Lower category temperature:? ? ? 电容器连续工作下最低的环境温度。 ? ? The minimum ambient temperature for which a capacitor ? ? has??been?designed to operate continuously.? 5.?额定温度 Rated temperature:? ? ? 可连续施加额定电压的最大环境温度。 ? ? The maximum ambient temperature at which rated voltage? ? ? may?be?continuously applied.? 6.?额定电压 Rated voltage:? ? ? 最大的直流电压或最大有效值交流电压或脉冲电压的峰值,可在 ? ? 下限类 别温度与额定温度之间任一温度下连续载入于电容器的电 ? ? 压。 ? ? The maximum direct voltage or the maximum RMS alternating ? ??voltage?or peak value of pulse voltage which may be applied?? ? ? continuously to a?capacitor at any temperature between the? ? ? lower category temperature?and the rated temperature.? 7.?类别电压 Category voltage:? ? ? 電容器在其上限溫度下可連續施加在電容器上的最大電壓。? ? ? The maximum voltage which may be applied continuously to ? ??a capacitor??at its upper category temperature.? 8.?温度降额电压 Temperature derating voltage:? ? ? 对于额定温度和上限类别温度之间的任一温度,降温电压是可以 ? ? 连续施加到电容器上的最大电压。 ? ? For any temperature between the rated temperature and?? ? ? the upper?category temperature, the temperature derating? ? ? voltage is the maximum?voltage that may be applied? ? ? continuously to a capacitor.? | ? ??9. 绝缘电阻(IR)/时间常数(t) ? ? ? ? Insulation resistance (lR)/time constant:? ? ? ? ? 绝缘电阻是电容器充电一分钟后所加的直流电压和流经电容器的 ? ? ? ? 漏电流值的比值。 单位“MΩ”。 时间常数为绝缘电阻和电容量 的 ? ? ? ? 乘积,通常以秒表示,公式如下: ? ? ? ? t (s)=lR (MΩ)×CR (μF) . ? ? ? ? The insulation resistance is the ratio between an applied DC? ? ? ? ? voltage and the resulting leakage current after a minute of charge. ? ? ? ? It is expressed in MΩ. The time constant is expressed in seconds ? ? ? ? with the following formula:? ? ? ? ?t (s)=lR (MΩ)×CR (μF).
? ? 10. 脉冲上升时间 Pulse rise time (dv/dt):? ? ? ? ? 脉冲上升时间决定了电容器承受快速电压变化引起的大电流峰值 ? ? ? ? 的能力。 峰值电流定义公式如下: ? ? ? ? lp(A)=C(uF) × dv/dt ( V/μs)? ? ? ? ? The pulse rise time defines the capability of a capacitor to? ? ? ? ? withstand high current peaks due to fast voltage changes.? ? ? ? ? The peak current is defined by the following formula:? ? ? ? ? lp(A)=C(uF) × dv/dt ( V/μs)? ? ? 11.?损耗角正切及等效串联电阻 ? ? ? ? Dissipation factor and equivalent series resistance:? ? ? ? ? 耗散因数或损耗角正切(tanδ) 是指电容器在规定频率的正弦电压 ? ? ? ? 作用下,电容器损耗的功率除以电容器的无功功率。 等效串联电 ? ? ? ? 阻(ESR)是由电容串联电阻和电感组成的等效电路。 ? ? ? ? The dissipation factor or tangent of loss angle (tanδ) is the power ? ? ? ? loss of the capacitor divided by the reactive power of the capacitor ? ? ? ? at a sinusoidal voltage of specified frequency. The equivalent series ? ? ? ? resistance(ESR) is the resistive part of the equivalent circuit ? ? ? ? composed of capacitance, series resistance and inductance.
![常用技术术语 常用技术术语]()
|