GBZ26854-2011 English PDFUS$194.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GBZ26854-2011: Standardizing the characteristics of electricity Status: Valid
Basic dataStandard ID: GB/Z 26854-2011 (GB/Z26854-2011)Description (Translated English): Standardizing the characteristics of electricity Sector / Industry: National Standard Classification of Chinese Standard: K04 Classification of International Standard: 29.020 Word Count Estimation: 10,142 Date of Issue: 2011-07-29 Date of Implementation: 2011-12-01 Adopted Standard: IEC/TR 62510-2008, IDT Regulation (derived from): ?National Standard Approval Announcement 2011 No.12 Issuing agency(ies): Ministry of Health of the People's Republic of China Summary: This standard specifies the method described in the quality of power as a commodity. Describes the power quality and electromagnetic compatible relationship, clear and obligations of any of the stakeholders involved in power quality problems. This standard is used to guide the power quality standardization. This standard applies to AC 50Hz power supply system. GBZ26854-2011: Standardizing the characteristics of electricity---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.Standardising the characteristics of electricity ICS 29.020 K04 People's Republic of China national standardization of technical guidance documents Standardization of electrical characteristics (IEC /T R62510.2008, IDT) Posted on.2011-07-29 2011-12-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released ForewordThe report was released by the IEC /TC8 committee. This instructional document has been drafted in accordance with the rules given in GB/T 1.1-2009. This Guidance Document is proposed and managed by the National Technical Committee for Voltage and Current Leveling and Frequency Standardization (SAC/TC1). The main drafting of the guidance of technical documents. China Southern Power Grid EHV Transmission and Maintenance Testing Center, Xi'an Boyu Electric Co., Ltd. Company, Hebei Electric Power Research Institute, China Machine Productivity Promotion Center, China Electric Power Research Institute. The guidance of technical documents to participate in the drafting unit. Wuhan State Measurement Technology Co., Ltd., China Railway Fourth Survey and Design Group Co., Ltd., Guodian Nanjing Automation Co., Ltd., Shanxi Electric Power Company Electric Power Research Institute, Shanghai Chai Ri Electric Co., Ltd. The main drafters of this technical guidance document. Xiao Yao, Liu Juncheng, Duan Xiaobo, Zhang Ping, Lin Haixue. The guiding technical document is drafted by Gao Jun, Bu Zhengliang, Huang Zuoping, Wang Youlong, He Chunguang, Wang Jinhao and Chen Jianguo.IntroductionCurrently, different countries have some characteristic standards for utility grid power supply, IEC 61000-2-1.1990, EN50160 and IEEE1159 Standards such as trying to cover all the features. According to the European Directive on Defective Products (85/374/EEC), EN50160 has formally introduced electric energy Treat as a product. It is the grid operator's responsibility to design and operate the grid in accordance with national laws, national or international standards so that the power quality meets the requirements. The following describes the electrical performance, as well as the relationship between power quality and electromagnetic compatibility (EMC). Most of its content from Europe Europe Power Quality Report (EURELECTRICPQReport, 2nd Edition). Power quality Electricity supply is one of the most basic services of all basic services on which modern society depends. To this end, its important quality characteristics of the main To show in the following areas. a) Continuity of power supply, including. ● In order to ensure a continuous supply of electricity on a day-to-day basis, operational mechanisms are needed to prevent long or frequent disruptions to the supply. ● In order to ensure the safety of medium and long term power supply, the requirements on the user needs and power generation, transmission, distribution and other equipment and a variety of power availability There is a steady balance between. b) The standardization of supply voltage and frequency is necessary for the generation, transmission, distribution and utilization of electrical equipment. Will supply voltage and Frequency control within the reasonable range of the nominal value used is very important. c) Although the voltage and frequency are generally maintained at an acceptable level, there are some fairly short, low amplitude or sporadic in actual operation The amount of irregular superimposed on the voltage, interfere with the user's electrical equipment or electrical equipment in the power grid to play its normal function. Note. There are many different ways to classify the quality of power supplies, and the classification by function from current generation, supply and grid operations is more complicated. For example, the following term was used in a recent report submitted by The Council of European Electricity Regulator. --- Business Quality. A variety of quality of service between suppliers and users (services here, not limited to grid operations); --- Continuity of power supply. The extent to which the user perceives the power supply interruption due to various reasons (see a) above); --- Voltage quality. Voltage technical characteristics of the user-powered indicators, such as amplitude and frequency (see b) above) and potential disturbance problems (see above c)). Standardization of electrical characteristics1 ScopeThis guidance document summarizes the quality of electrical energy as a description of the method; described the relationship between power quality and electromagnetic compatibility; Clarified the responsibilities and obligations of the stakeholders involved in power quality issues. This Guidance Document is used to guide the standardization of power quality. This guideline is applicable to AC 50Hz power supply system.2 power quality phenomenonAnalysis of power quality problems by standardizing network impedance characteristics is a fundamental method, such as the 16A and 75A in IEC 60725 Electrical equipment supply regulations. So that power suppliers, distributors and system users can share power quality responsibilities. NOTE Many countries do not always adopt standardized network impedances because of the special grid architecture that uses other approaches to make power quality management even more Convenient and more reasonable. The degree of economic development has a great impact on the importance of various indicators of power quality. The main concern in the early days was the electrical energy actually Availability; then concerned about the voltage and frequency in most of the power supply time is within the reasonable range of its nominal value, this stage is not yet obvious Concerned about voltage sags, transients and other effects; but with the high degree of economic development, in addition to supply continuity, voltage and frequency, a series of As the beginning to get the attention, with the modern term "power quality" to be summarized. Power quality phenomenon is briefly described below. ● Harmonic, inter-harmonic, 2kHz ~ 9kHz range of frequency components. These components are mainly caused by the electrical equipment in the system, the electrical characteristics of such equipment as current is nonlinear with respect to the voltage Department, in addition to absorbing fundamental current, but also to the power supply network injection of non-fundamental frequency current. Note. Harmonic. The frequency is an integer multiple of the fundamental frequency. Between the harmonic frequency of the power frequency voltage and current, that is, the actual frequency is not an integral multiple of the fundamental frequency. Inter harmonics can be discrete frequencies Rate or in the form of a broadband spectrum. By the inverter inverter, rectifier or similar non-linear load control equipment operation produce. ● Flicker, the main effect of voltage fluctuations. The amplitude of the current absorbed by some powered devices has a fluctuating characteristic, which causes the grid voltage to fluctuate accordingly. ● Short-term rms changes (instantaneous, temporary and short-term). Caused by unexpected events, system shorts and cutouts, motor starts, sudden increases in current in the power supply system or connected devices, and more. ● Transient over-voltage (surge and oscillation over-voltage). A number of electromagnetic phenomena, including switching operations, blown fuses, lightning strikes on the grid, etc., are produced on the distribution network and its connected equipment Health transient over-voltage. ● Short-term power frequency overvoltage and low voltage (long rms changes). According to practice, short-term power overvoltages between live conductors (phase conductors) and ground are often caused by the breaking of the neutral (wire) conductor. Short time Power line overvoltages may also occur during a utility distribution or customer premises equipment ground fault and disappear when the ground fault is cleared. ● unbalanced. The imbalance voltage of the three-phase system is caused by the system failure or the imbalance of phase current absorbed by the system's electrical equipment. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GBZ26854-2011_English be delivered?Answer: Upon your order, we will start to translate GBZ26854-2011_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GBZ26854-2011_English with my colleagues?Answer: Yes. The purchased PDF of GBZ26854-2011_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay. |
