GB/T 22713-2008 English PDF

US$154.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 22713-2008: Effects of unbalanced voltages on the performance of three-phase cage induction motor
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 22713-2008	154	Add to Cart	3 days	Effects of unbalanced voltages on the performance of three-phase cage induction motor	Valid

Similar standards

GB/T 24625   GB/T 15548   GB/T 24625   GB/T 12974.2   GB/T 22711   

Basic data

Standard ID: GB/T 22713-2008 (GB/T22713-2008)
Description (Translated English): Effects of unbalanced voltages on the performance of three-phase cage induction motor
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: K21
Classification of International Standard: 29.160.30
Word Count Estimation: 8,892
Date of Issue: 2008-12-30
Date of Implementation: 2009-10-01
Adopted Standard: IEC 60034-26-2006, IDT
Regulation (derived from): Announcement of Newly Approved National Standards No. 23 of 2008 (No. 136 overall)
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
Summary: This standard specifies the unbalanced voltage three-phase cage induction motor performance. This standard applies to three-phase cage induction motors.

GB/T 22713-2008: Effects of unbalanced voltages on the performance of three-phase cage induction motor

---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.
Effects of unbalanced voltages on the performance of three-phase cage induction motor ICS 29.160.30 K21 National Standards of People's Republic of China GB/T 22713-2008/IEC 60034-26.2006 Voltage unbalance Effect of three-phase cage induction motor performance (IEC 60034-26.2006, IDT) Posted 2008-12-30 2009-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This is equivalent to using the standard IEC 60034-26.2006 "unbalanced voltage on three-phase cage induction motor performance." This standard 60034-26 and IEC on technical content.2006 no difference. The Standard Appendix A, Appendix B is an informative annex. The standard proposed by China Electrical Equipment Industrial Association. The standard rotary motor by the National Standardization Technical Committee (SAC/TC26) centralized. This standard is drafted by. Shanghai Electrical Apparatus Research Institute (Group) Co., Ltd., Shandong Motor Group Co., mountain West Motor Manufacturing Co., Ltd., Beijing Bi Jie Electric Co., Ltd., Siemens (China) Co., Ltd., Hebei Electric Co., Ltd., on Haidian Branch Motor Co., Ltd., Zhejiang Electric Co., Ltd. Jinlong. The main drafters of this standard. Lijun Li, Wang Qingdong, Chen Pu, Zhou Shoulian, Shaohui, Keeping Firmly in Mind Yejin Wu. This standard is the first release. GB/T 22713-2008/IEC 60034-26.2006 Voltage unbalance Effect of three-phase cage induction motor performance

1 Scope

This standard specifies the effects of unbalanced voltage three phase cage induction motor performance. This standard applies to three-phase cage induction motors.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 21210 single-speed three-phase cage induction motor starting performance (GB/T 21210-2007, IEC 60034-12.2002, IDT)

3 in the motor voltage unbalance performance

3.1 to 3.3 The following describes the effects of unbalanced voltages on the motor performance. 3.1 Current Negative sequence voltage imbalance produces a rotation of the rotor in the opposite direction of the magnetic field in the motor air gap. Small negative sequence voltage Components may make the current flowing through the winding voltage much larger than the current equilibrium. Flowing through the rotor cage bars current rated frequency is almost Frequency of 2 times, so squish effect squirrel cage rotor bar current loss is increased so that the value of the rotor winding is larger than the value of the stator winding losses increase a lot of. Unbalanced voltage at the motor rated speed operation, the current imbalance in the degree of large, about six times the voltage unbalance degree ~ 10 times. Voltage unbalance, locked rotor current unbalanced degree of voltage unbalance degree of the same, but stall the apparent value of the power increase is small. 3.2 fever The motor runs at a voltage imbalance, since the current and voltage in the negative sequence component of the stator caused loss increases, so the stator windings Temperature rise than in the equilibrium temperature rise Voltage runtime. The degree of increase in losses due to the rotor squish effect of current and increased. In addition, the voltage imbalance is usually associated with reduced voltage sequence components related to Chiang Kai-shek, Chiang Kai-shek rotor which makes the current sequence component increases. 3.3 Torque When the voltage unbalance, stall torque, minimum torque and maximum torque decrease. If the voltage imbalance is very serious, the motor can not It can operate normally. Voltage unbalance and frequency of twice the frequency of the oscillation of torque generated about. Increases torque oscillation amplitude of the voltage sequence components and Chiang Kai-shek 25% of the range. When the oscillation frequency torsional torque is nearly 2 times the critical frequency, the entire shafting torsional vibration may cause impermissible. 3.4 full speed When the motor is running at full voltage unbalance, because the rotor slip with an additional increase in loss increases, and thus the speed at this time Slightly decreased.

4 derating motor running to prevent overheating

When the three-phase AC motor system voltage frequency power supply is connected, the negative sequence component of long-term (at least for the motor thermal time constant) GB/T 22713-2008/IEC 60034-26.2006 ......

Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 22713-2008_English be delivered?

Answer: Upon your order, we will start to translate GB/T 22713-2008_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 22713-2008_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 22713-2008_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+ countries

Question 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.