本标准适用于轨道交通机车车辆中使用的电力电子电容器。
This Standard applies to capacitors for power electronics intended to be used on rolling stock.
本标准所涉及的电容器的额定电压最高到10000V。
The rated voltage of capacitors covered by this Standard is limited to 10,000 V.
采用此类电容器系统的工作频率通常低于2500Hz,而脉冲频率可高达几千赫,在某些情况下可能超过10000Hz。
The operating frequency of the systems in which these capacitors are used is usually below 2,500 Hz, while the pulse frequencies may go up to several thousand hertz, in some cases beyond 10,000 Hz.
电容器分为交流电容器和直流电容器两种。
It distinguishes between a.c. and d.c. capacitors.
电容器作为部件安装在壳体中。
They are considered as components mounted in enclosures.
注:本标准适用的电容器技术范围很广,包括过电压保护、直流和交流滤波器、开关电路、直流储能、辅助变流器等许多应用中使用的电容器。
Note: This standard covers an extremely wide range of capacitor technologies for numerous applications: overvoltage protection, d.c. and a.c. filtering, switching circuits, d.c. energy storage, auxiliary inverters, etc.
本标准不适用于以下电容器:
The following are excluded from this Standard:
——频率在40Hz~24000Hz之间的感应加热装置用电容器(见GB/T 3984.1和GB/T 3984.2);
capacitors for induction heat-generating plants operating at frequencies between 40 Hz and 24,000 Hz (see GB/T 3984.1 and GB/T 3984.2);
——交流电动机使用的以及类似的电容器(见GB/T 3667.1);
capacitors for a.c. motor applications and the like (see GB/T 3667.1);
——用于电力供电网中抑制一种或多种谐波的电路中使用的电容器;
capacitors to be used in circuits for blocking one or more harmonics in power supply networks;
——用于荧光灯和放电灯用的小型交流电容器(见GB 18489或GB/T 18504);
small a.c. capacitors as used for fluorescent and discharge lamps (see GB 18489 or GB/T 18504);
——抑制电磁干扰用的电容器(见GB/T 14472);
capacitors for suppression of radio interference (see GB/T 14472);
——额定电压1000V以上交流电力系统用并联电容器(见GB/T 11024.1、GB/T 11024.2);
shunt capacitors for a.c. power systems having a rated voltage above 1,000 V (see GB/T 11024.1 and GB/T 11024.2);
——额定电压1000V及以下的交流电力系统用自愈式并联电力电容器(见GB/T12747.1、GB/T12747.2);
shunt power capacitors of the self-healing type for a.c. systems having a rated voltage up to and including 1,000 V (see GB/T 12747.1 and GB/T 12747.2);
——额定电压1000V及以下的交流电力系统用非自愈式并联电力电容器(见GB/T17886.1、GB/T17886.2和GB/T17886.3);
shunt power capacitor of the non self-healing type for a.c. systems having a rated voltage up to and including 1,000 V (see GB/T 17886.1, GB/T 17886.2 and GB/T 17886.3);
——用于非主电路的电子电容器;
electronic capacitors not used in main power circuits;
——电力系统用串联电容器(见GB/T 6115.1、GB/T 6115.2和GB/T 6115.3);
series capacitors for power systems (see GB/T 6115.1, GB/T 6115.2 and GB/T 6115.3);
——耦合电容器及电容分压器(见GB/T 19749);
coupling capacitors and capacitors dividers (see GB/T 19749);
——用于要求储存能量/大电流放电,如影印机和激光机中的电容器;
capacitors for applications requiring energy storage/high current discharge such as photocopies and lasers;
——微波炉用电容器。
capacitors for microwave ovens.
示例在第9章中给出。
Examples are given in Chapter 9.
2 规范性引用文件
Normative References
下列文件中的条款通过本标准的引用而成为本标准的条款。凡是注日期的引用文件,其随后所有的修改单(不包括勘误的内容)或修订版均不适用于本标准,然而,鼓励根据本标准达成协议的各方研究是否可使用这些文件的最新版本。凡是不注日期的引用文件,其最新版本适用于本标准。
The following normative documents contain provisions which, through reference in this text, constitute provisions of this Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 2423.3 电工电子产品环境试验——第2部分:试验方法——试验Cab:恒定湿热试验
Environmental Testing for Electric and Electronic Products - Part 2: Testing Method - Test Cab: Damp Heat Steady State
(GB/T 2423.3-2006, IEC 60068-2-78: 2001, Environmental Testing - Part2-78: Tests C Test Cab: Damp Heat, Steady State, IDT)
GB/T 2423.22-2002 电工电子产品环境试验——第2部分: 试验方法——试验N: 温度变化
Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Test N: Change of Temperature
(IEC 60068-2-14:1984, Basic Environmental Testing Procedures - Part2: Tests C Test N: Change of Temperature, IDT)
GB/T 2423.28 电工电子产品环境试验——第2部分: 试验方法——试验T: 锡焊
Environmental Testing for Electric and Electronic Products - Part 2:Test Methods - Test T:Soldering
(GB/T 2423.28-2005, IEC 60068-2-20: 1979, Basic Environmental Testing Procedures - Part2: Test - Test T: Soldering, IDT)
GB/T 4798.5 电工电子产品应用环境条件——第5部分: 地面车辆使用
Environmental Conditions Existing in the Application of Electric and Electronic Products - Section 5: Ground Vehicle Installations
(GB/T 4798.5-2007, IEC 60721-3-5:1997, Classification of Environmental Conditions - Part3: Classification of Groups of Environmental Parameters and Their Severities C Section 5: Ground Vehicle Installations, MOD)
GB 13539.1 低压熔断器——第1部分: 基本要求
Low-voltage Fuses - Part 1: General Requirements
(GB 13539.1-2008, IEC 60269-1: 2006, IDT)
GB/T 16935.1 低压系统内设备的绝缘配合——第1部分: 原理、要求和试验
Insulation Coordination for Equipment within Low-voltage Systems - Part 1: Principles Requirements and Tests
(GB/T 16935.1-2008, IEC 60664-1:2007, IDT)
GB/T 21563 轨道交通——机车车辆设备——冲击和振动试验
Railway Applications - Rolling Stock Equipment - Shock and Vibration Tests
(GB/T 21563-2008, IEC 61373: 1999, IDT)
IEC 60068-2-21:1992 电子电工产品基本环境试验规程——第2部分: 试验方法——试验U:引出端及整体安装件强度
Basic Environmental Testing Procedures for Electric and Electronic Products C Part 2: Test Method C Test U: Robustness of Terminations and Integral Mounting Devices
3 术语和定义
Definitions
下列术语和定义适用于本标准。
For the purpose of this Standard, the following definitions apply.
3.1
电容器元件(或元件)
Capacitor element (or element)
电容器不可再分的部件,它由被电介质隔开的两个电极构成。
indivisible part of a capacitor consisting of two electrodes separated by a dielectric
3.2
电容器单元(或单元)
Capacitor unit (or unit)
由一个或多个电容器元件组装于同一外壳中并有引出端子的组装体。
assembly of one or more capacitor elements in the same container with terminals brought out
3.3
电容器组
Capacitor bank
电气上连接在一起的两个或多个电容器单元的组装体。
assembly of two or more capacitor units connected to each other
3.4
电容器
Capacitor
在不需表明其是元件、单元或电容器组时所用的一般术语。
general term used when it is not necessary to state whether reference is made to an element, a unit or a capacitor bank
