17.220.01 电学、磁学综合 标准查询与下载

IEC TR 60909-4:2000 三相交流系统中的短路电流 第4部分:短路电流计算举例

This part of IEC 60909 is a technical report intended to give help for the application of IEC 60909-0 for the calculation of short-circuit currents in 50 Hz or 60 Hz three-phase a.c. systems. This technical report does not include additional requirements but gives support for the modelling of electrical equipment in the positive-sequence, the negative-sequence and the zero-sequence system (clause 2) and the practical execution of calculations in a low-voltage system (clause 3), a medium-voltage system with asynchronous motors (clause 4) and a power-station unit with its auxiliary network feeding a large number of medium-voltage asynchronous motors and low-voltage motor groups (clause 5). The three examples given in clauses 3, 4 and 5 are similar to those given in IEC 60909 (1988) but they are revised in accordance with IEC 60909-0, which replaces it. A subclause is added to the example in clause 3 to give a comparison between the results found with the application of the equivalent voltage source at the short-circuit location following the procedure given in IEC 60909-0 on the one hand, and results found with the superposition method on the other hand, taking into account different load-flow conditions before the short circuit. Clause 6 of this technical report gives the circuit diagram and the data of a test network and the results for a calculation carried out in accordance with IEC 60909-0, to offer the possibility for a comparison between the results found with a digital program for the calculation of short-circuit currents and the given results for Ik", ip, Ib, Ik, Ik1" and ip1 in a high-voltage network with power-station units, generators, asynchronous motors and lines in four different voltage levels 380 kV, 110 kV, 30 kV and 10 kV.

Short-circuit currents in three-phase a.c. systems - Part 4: Examples for the calculation of short-circuit currents

BS EN 60059:1999+A1:2009 IEC 标准额定电流

This standard specifies standard current ratings for electrical devices, apparatus, instruments and equipment text deleted. This standard does not apply to current ratings of components and parts used within electrical devices or items of equipment.

IEC standard current ratings

IEC 60059:1999 IEC标准电流额定值

This standard specifies standard current ratings for electrical devices, apparatus, instruments and equipment and should be applied to the designing of utilization systems or equipment as well as to operating characteristics. This standard does not apply to current ratings of components and parts used within electrical devices or items of equipment.

IEC standard current ratings

IEC 60404-11:1991+AMD1:1998 CSV 磁性材料.第11部分:磁性片和磁性带表面绝缘电阻测定的试验方法

Magnetic materials - Part 11: Method of test for the determination of surface insulation resistance of magnetic sheet and strip

SNI 04-6185.2-1999 短路电流-计算的效果. 第2部分:实例计算

Short-circuit current - Calculation of effects - Part 2: Examples of calculation

IEEE 1309/COR-1998 频率为9KHz～40GHz的不包括天线的电磁场传感器和探针的校正.勘误

Calibration of electromagnetic field sensors and probes, excluding antennas, from 9 kHz to 40 GHz; Corrections

ANSI/ASTM D4470:1997 静电起电的试验方法(10.02)

This test method covers the generation of electrostatic charge, the measurement of this charge and its associated electric field, and the test conditions which must be controlled in order to obtain reproducible results. This test method is applicable to both solids and liquids. This test method is not applicable to gases, since a transfer of a gas with no solid impurities in it does not generate an electrostatic charge. This test method also does not cover the beneficial uses of static electrification, its associated problems or hazards, or the elimination or reduction of unwanted electrostatic charge. The values stated in SI units are to be regarded as the standard. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Test Method for Static Electrification (10.02)

IEEE 1309-1996 频率为9KHz～40GHz的电磁传感器和探针,不包括天线

Calibration of electromagnetic field sensors and probes, excluding antennas, from 9 kHz to 40 GHz

IEC 60865-1/COR1:1995 短路电流.效应的计算.第1部分:计算方法和定义

This standard is Short-circuit currents; calculation of effects; part 1: definitions and calculation methods; Corrigendum 1.

Short-circuit currents; calculation of effects; part 1: definitions and calculation methods

IEC 60865-2:1994 短路电流效应的计算.第2部分:计算举例

The object is to show the application of procedures for the calculation of mechanical and thermal effects due to short circuits as presented in IEC 865-1. Thus, it is in addition to IEC 865-1. However, it does not change the basis for standardized proced

Short-circuit currents - Calculation of effects - Part 2: Examples of calculation

NF C10-103:1994 短路电流.效应计算.第1部分:定义和计算方法

Short-circuit currents. Calculation of effects. Part 1 : definitions and calculation methods.

DIN 40110-1:1994 交流电理论数值.双线电路

Quantities used in alternating current theory; two-line circuits

BS EN 60865-1:1994 短路电流效应计算.定义和计算方法

Applies to a.c. systems having rated voltages up to and including 420 kV.

Short-circuit currents - Calculation of effects - Definitions and calculation methods

IEC 60865-1:1993 短路电流 效应的计算 第1部分:定义和计算方法

Is applicable to the mechanical and thermal effects of short-circuit currents. Contains standardized procedures for the calculation of the effects of the short-circuit currents in two sections: the electromagnetic effect on rigid conductors and flexible

Short-circuit currents; calculation of effects; part 1: definitions and calculation methods

IEC TR3 60909-2:1992 电气设备 按照IEC 60909:1988进行短路电流计算用的数据

Comprises data collected from different countries to be used when necessary for calculating short-circuit currents in accordance with IEC 781 and IEC 909. In general data are presented in the form of curve sheets. For each type of equipment (synchronous

Electrical equipment; data for short-circuit current calculations in accordance with IEC 60909:1988

IEEE Std C62.47-1992 静电放电（ESD）指南：ESD 环境特征 R（1997）

Electrostatic discharge (ESD); characterization of the ESD environment / Note: Approved 1997-00-00.

Guide on Electrostatic Discharge (ESD): Characterization of the ESD Environment R(1997)

IEC TR2 60909-1:1991 三相交流系统中短路电流的计算.第1部分:根据IEC909的三相交流系统中短路电流的计算因子

Short-circuit current calculation in three-phase a.c. systems; part 1: factors for the calculation of short-circuit currents in three-phase a.c. systems according to IEC 909

DIN 1324-3:1988 电磁埸.第3部分:电磁波

This standard deals with the physical principles for electromagnetic waves, their mathematical presentation and related concepts.#,,#

Electromagnetic field; electromagnetic waves

DIN 1324-2:1988 电磁埸.第2部分:材料量值

This standard explains the material quantities which describe the relationship established by the material between the field quantities of the electromagnetic field. It is related to chapter 121 of the international electrotechnical vacubulary (IEV).

Electromagnetic field; material quantities

DIN 1324-1:1988 电磁埸.状态量值

This standard explains the state quantities of the electromagnetic field in a comprehensive form. It is related to chapter 121 of the international electrotechnical vocabulary (IEV).

Electromagnetic field; state quantities