GBZ18039.7-2011 English PDF

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GBZ18039.7-2011: Electromagnetic compatibility -- Environment -- Voltage dips and short interruptions on public electric power supply systems with statistical measurement results
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GB/Z 18039.7-2011	694	Add to Cart	4 days	Electromagnetic compatibility -- Environment -- Voltage dips and short interruptions on public electric power supply systems with statistical measurement results	Valid

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Basic data

Standard ID: GB/Z 18039.7-2011 (GB/Z18039.7-2011)
Description (Translated English): Electromagnetic compatibility -- Environment -- Voltage dips and short interruptions on public electric power supply systems with statistical measurement results
Sector / Industry: National Standard
Classification of Chinese Standard: L06
Classification of International Standard: 33.100
Word Count Estimation: 35,364
Date of Issue: 2011-12-30
Date of Implementation: 2012-06-01
Adopted Standard: IEC/TR 61000-2-8-2002, IDT
Regulation (derived from): ?National Standard Approval Announcement 2011 No.22
Issuing agency(ies): Ministry of Health of the People's Republic of China
Summary: This standard specifies the voltage dips and short interruptions electromagnetic harassment. Sources involved in the harassment, influence, remedial measures, measurement methods and results (in this range applies). Focuses on the common power supply line system and observations on the electronic device that receives energy from the system. " Voltage drop " is a phenomenon of voltage sags a nickname.

GBZ18039.7-2011: Electromagnetic compatibility -- Environment -- Voltage dips and short interruptions on public electric power supply systems with statistical measurement results

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Electromagnetic compatibility.Environment.Voltage dips and short interruptions on public electric power supply systems with statistical measurement results ICS 33.100 L06 People's Republic of China national standardization of technical guidance documents Electromagnetic compatibility environment Voltage sags, short interruptions and short circuits in utility power systems Its measurement results (IEC /T R61000-2-8.2002, IDT) 2011-12-30 published.2012-06-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Preface Ⅰ 1 Scope 1 2 Terms and definitions 1 3 voltage sag and short interruption 2 3.1 source of voltage sags 2 3.2 voltage sag duration 3 3.3 voltage sag amplitude 3 3.4 short interruption 4 3.5 voltage sags and short-term interruption of the reasons 5 3.6 medium voltage grid fault example 5 4 voltage dips and short interruptions 7 4.1 Overview 7 4.2 The impact of some specific equipment 7 5 Remedies 9 5.1 General 9 5.2 Examples of remedial measures 10 6 voltage sag and short interruption measurement 11 6.1 Voltage sag and short-term interruption of the provisions of the measurement 11 6.2 Voltage Sag Measurement 13 6.3 Short-term interruption of the measurement 13 6.4 Classification of measurement results 13 6.5 Summary of Measurement Results 14 7 The resulting measurement 15 7.1 UNIPEDE statistics 15 7.2 EPRI (United States Electric Power Research Institute) survey statistics [9] [10] 17 7.3 Statistics of individual countries 19 8 Results Comparison and General Conclusion 26 8.1 Results Comparison 26 8.2 Conclusions drawn from the statistical results 27 8.3 General conclusions 27 8.4 Recommendation 29 References 30

Foreword

This Guidance Document is one of a series of "Electromagnetic Compatibility Environment" standards that fall into the following sections. GB /Z 18039.1-2000 Electromagnetic compatibility environment Electromagnetic environment classification (IEC 61000-2-5.1996, IDT) GB /Z 18039.2-2000 Electromagnetic compatibility environment Industrial equipment low frequency conducted conducted power transmission disturbance assessment (IEC 61000-2-6.1996, IDT) GB/T 18039.3-2003 Electromagnetic compatibility environment common low voltage power supply system Low frequency conducted disturbances and signal transmission compatible water Flat (IEC 61000-2-2.1990, IDT) GB/T 18039.4-2003 Electromagnetic compatibility environment Factory compatible levels of low frequency conducted disturbances (IEC 61000-2-4.1994, IDT) GB/T 18039.5-2003 Electromagnetic compatibility environment Common power supply system Low-frequency conducted disturbances and electromagnetic signal transmission environment (IEC 61000-2-1.1990, IDT) GB /Z 18039.6-2005 Electromagnetic compatibility Environment Low frequency magnetic fields in various environments (IEC 61000-2-7.1998, IDT) Fruit (IEC 61000-2-8.2002, IDT) This instructional document has been drafted in accordance with the rules given in GB/T 1.1-2009. This Guidance Document is equivalent to IEC /T R61000-2-8.2002 "Electromagnetic Compatibility Environment Part 2-8. Public Power Supply System System voltage sags, short-term interruption and measurement of statistical results. " This guidance document is proposed and managed by the National Electromagnetic Compatibility Standardization Technical Committee (SAC/TC246). The guiding technical document is drafted by Shanghai Electric Apparatus Research Institute, Shanghai Sanji Electronic Industrial Co., Ltd. The main drafters of this technical guidance document. Shou Jianxia, Qian Zhenyu, Ye Qiongyu, Cheng Liling, Meng Zhiping, Xiao Xiao, Liu Yuan, Xing Lin, Zheng Junqi, Liu Xiaodong. Electromagnetic compatibility environment Voltage sags, short interruptions and short circuits in utility power systems Its measurement results

1 Scope

This guidance document establishes the issue of electromagnetic disturbance of voltage sag and short interruption, relating to the sources, effects and remedies of harassment Application, measurement methods and measurement results (within this range apply). Mainly on the phenomenon observed in the line of public power supply system and right The impact of some electronic devices that receive energy from the system. "Voltage sag" is an alias of voltage sags.

2 Terms and definitions

The following terms and definitions apply to this document. 2.1 Voltage dips/voltage drops voltagedip/voltagesag The voltage at a point in the power supply suddenly drops below a specified threshold and then returns to normal after a short period of time. Note 1. Typical dips and shorts are related to the occurrence and termination of short circuits, or to the rapid current increase on the system and its connected devices. Note 2. Voltage sag is a two-dimensional electromagnetic disturbance whose level is determined by voltage and time (duration). 2.2 Shortinterruption of short interruptions The voltage at all phases of the power supply system drops abruptly below the specified interruption threshold, then goes through a brief interval of recovery To normal. Note. Typical short interruptions are related to the action of the switching device caused by the occurrence and termination of a short circuit to the system or system connected device. 2.3 (Voltage sag) Reference voltage < Voltage dips referencevoltage \u003cmeasurement ofvoltagedipsandshortinterruptions > The specified voltage reference, voltage sag depth, threshold, and other values are expressed in terms of their per-unit value or percentage of this reference value. NOTE The rated or nominal voltage of the power supply system is usually selected as the reference voltage. 2.4 Voltage sag threshold < voltage sags> voltagedipstartthreshold \u003cvoltagedipmeasurement\u003e The voltage root mean square value (rms) of the supply system to define the beginning of a voltage sag. Note Typically this threshold is used as a typical value between 0.85 and 0.95 times the reference voltage. 2.5 Voltage sag end threshold < Voltage sag measurement> voltagedipendthreshold \u003cvoltagedipmeasurement\u003e The voltage root mean square value (rms) of the supply system to define the end of the voltage dips. Normally, the end threshold is the same as the start threshold or exceeds the reference voltage 0.01 times the start threshold. 2.6 Interrupt threshold < voltage dips and short interruptions> interruptionthreshold \u003cmeasurementofvoltagedipsand shortinterruptions > In the power supply system, the provisions of a voltage root mean square value as the voltage sag threshold, for each phase voltage is lower than the value of this case ......

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