GB/T 21211-2017 English PDFUS$479.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 21211-2017: Equivalent loading and superposition techniques -- Indirect testing to determine temperature rise of rotating electrical machines Status: Valid GB/T 21211: Historical versions
Basic dataStandard ID: GB/T 21211-2017 (GB/T21211-2017)Description (Translated English): Equivalent loading and superposition techniques -- Indirect testing to determine temperature rise of rotating electrical machines Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: K20 Classification of International Standard: 29.160.01 Word Count Estimation: 24,294 Date of Issue: 2017-11-01 Date of Implementation: 2018-05-01 Older Standard (superseded by this standard): GB/T 21211-2007 Regulation (derived from): National Standard Announcement 2017 No. 29 Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China GB/T 21211-2017: Equivalent loading and superposition techniques -- Indirect testing to determine temperature rise of rotating electrical machines---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. Equivalent loading and superposition techniques-Indirect testing to determine temperature rise of rotating electrical machines ICS 29.160.01 K20 National Standards of People's Republic of China Replacing GB/T 21211-2007 Equivalent load and overlay test techniques Indirect method to determine the temperature rise of rotating motor Equivalent loading and superposition techniques - Indirect testingtodetermine (IEC 60034-29.2008, Rotatingelectrmachines-Part 29.Equivalent temperaturerise, IDT) 2017-11-01 Release.2018-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Foreword Ⅲ Introduction IV 1 Scope 1 2 Normative references 1 3 symbols, units and subscript 1 4 General test requirements 2 5 superposition test method 2 5.1 The basic principle 2 5.2 Induction motor 4 5.3 synchronous motor 7 5.4 DC motor 10 Equivalent load method 6.1 Fundamentals 6.2 Induction motor 11 6.3 synchronous motor - zero power factor method 16 Method 7 is preferred Appendix A (informative) Example Calculation 19 References 20 Figure 1 induction motor diagram superimposed method 6 Figure 2 Seek the rated load excitation winding temperature rise (synchronous motor) 9 Figure 3 into the DC equivalent load test circuit Figure 12 Figure 4 superimposed frequency test --- two generators in series 13 Figure 5 stack test --- string into the crossover transformer 14 Figure 6 stack frequency test --- torque and current combination 15 Figure 7 Rotor feed overlap method 16 Table 1 Preferred Method 17 ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 21211-2007 "indirect method of equivalent load and superimposed test to determine the temperature rise of rotating electrical machines," and GB/T 21211-2007 compared to the main technical changes are as follows. --- Modify the level of accuracy of measuring instruments, should not be less than 0.5 (see Chapter 4, see the.2007 edition of Chapter 4); --- Redefinition of the uncertainty of the various indirect methods (see Chapter 5, Chapter 6, see the.2007 edition of Chapter 6, Chapter 7, Section 8 chapter); --- Increasing the uncertainty of the various indirect methods of classification, in accordance with the "low" "medium" "high" guide the preferred method (see Chapter 7); --- Added Appendix A instance calculation. This standard uses the translation method identical with IEC 60034-29.2008 "Rotating Electrical Machinery Part 29. Equivalent load and stacking test technology Indirect determination of temperature rise. " The documents of our country that are consistent with the corresponding international documents that are normative references in this standard are as follows. Rotating electrical machines (other than traction motors) - Test method for determining loss and efficiency (IEC 60034-2-1). 2007, IDT). This standard has the following editorial changes. --- Modify the standard name; --- Remove the IEC 60027-4 listed in Chapter 2 (the document does not normative references in the text), the document IEC 60027-4 is listed New added references --- Increasing the formula number; This standard proposed by the China Electrical Equipment Industry Association. This standard by the National Standardization Technical Committee rotating electrical (SAC/TC26) centralized. This standard was drafted unit. Shanghai Electrical System Engineering Research Center Co., Ltd. energy saving, Shanghai Electric Group Co., Ltd. Shanghai Electric Factory Division, Shandong Huali Motor Group Co., Ltd., Zhejiang Jinlong Electric Co., Ltd., Fujian Anbo Motor Group Co., Ltd., Shanghai Drive Electric Co., Ltd., CSR Zhuzhou Motor Co., Ltd., Xi'an Tai Fu Cima Electric Co., Ltd., Zhejiang Hailong Technology Co., Ltd., Rongcheng Rongjia Power Co., Ltd., Shanghai Chuan Electric Co., Ltd. also. The main drafters of this standard. Wang Chuanjun, Jin Wei, Sun Minglun, Qiu Yuhong, Zhang Wenbin, leaves, Han Shunhu, Wu Yanhong, Chen Xiangen, Guo Xueyan, Zhuang Xiaofen, Zhang Liangjun, Zhuyi Qian, Xie Jiaqing, Tong Zong Song. This standard replaces the standards previously issued as. --- GB/T 21211-2007.IntroductionThe purpose of this standard is to provide a variety of indirect load test method to determine the temperature rise of rotating electrical machines, including AC induction motor, AC synchronous power Machine and DC motor temperature rise. In some cases, this test method also comes with the measurement or estimation of other parameters such as loss and vibration Act, but it is not specifically stated that this method provides these data. As the test methods recommended by this standard are equivalent, it can only be based on applications, test equipment, motor type and test results The accuracy of the choice of test methods. This standard can not be understood as any motor can be tested according to any or all of the test methods. Some specific tests should be pressed A special agreement between the manufacturer and the user is established. NOTE The method described in this standard is only an approximation of the thermal behavior of a motor under normal rated load conditions. Therefore, the tests obtained with these test methods As a result, according to the agreement between the manufacturer and the user, the basis for evaluating whether the heating of the motor conforms to 8.10 of IEC 60034-1 can be evaluated. Equivalent load and overlay test techniques Indirect method to determine the temperature rise of rotating motor1 ScopeThis standard applies GB/T 755-2008 coverage for a variety of reasons can not be loaded to the specified conditions (rated or other load) for Thermal test of motors and generators.2 Normative referencesThe following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 755-2008 Rotating electrical machinery quota and performance (IEC 60034-1.2004, IDT) IEC 60034-2-1 Rotating electrical machines - Part 2-1. Test methods for determining loss and efficiency (except traction motors) (Rotating electricalmachines-Part 2-1.Standardmethodsfordetermininglossesandefficiencyfromtests (ex- cluding machinesfortractionvehicles)) 3 symbols, units and subscripts The following symbols and units apply to this document. K temperature rise factor, in Kelvin per Watt (K/W) Note 1. The full name of K is "Characterize the slope of a linear change in temperature rise with loss", see IEC 60027-4, No. 901. Δθ temperature rise in Kelvin (K) θ temperature, in degrees Celsius (℃) P Power, loss, in watts (W) I current in amperes (A) R resistance in ohms (Ω) X reactance in ohms (Ω) U voltage in volts (V) E potential in volts (V) f Frequency in Hertz (Hz) f1,2 main/sub-frequency in Hertz (Hz) Δt interval in seconds (s) T torque in Newton meters (N · m) J Moment of inertia, in kilograms square meters (kg · m2) cosφ power factor Uncertainty of γ method, the unit is percentage (%) Note 2. This definition indicates that the measured temperature rise at γ > 0 is higher than at actual load conditions. δf modulation frequency amplitude, in Hertz (Hz) λ Vice voltage and the main voltage ratio ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 21211-2017_English be delivered?Answer: Upon your order, we will start to translate GB/T 21211-2017_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 GB/T 21211-2017_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 21211-2017_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. 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