GB/T 33984-2017 English PDFUS$199.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 33984-2017: Motor soft-start device -- Terminology Status: Valid
Basic dataStandard ID: GB/T 33984-2017 (GB/T33984-2017)Description (Translated English): Motor soft-start device -- Terminology Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: K46 Classification of International Standard: 29.200 Word Count Estimation: 10,163 Date of Issue: 2017-07-12 Date of Implementation: 2018-02-01 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 33984-2017: Motor soft-start device -- Terminology---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.Motor soft-start device - Terminology ICS 29.200 K46 National Standards of People's Republic of China Terminology of motor soft starter 2017-07-12 released 2018-02-01 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released ForewordThis standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by China Electrical Equipment Industry Association. This standard is nationalized by the National Power Electronics and Equipment Standardization Technical Committee (SAC/TC60). The drafting of this standard unit. vigorously electrician Xiangyang Co., Ltd., Dayu Electric Technology Co., Ltd., Xiangyang City, information and standardization , Shanghai Reynolds Technology Co., Ltd., Wanzhou Electric Co., Ltd., Xi'an Institute of Power Electronics Technology, Machinery Industry Beijing Electric Institute of Technology and Economy. The main drafters of this standard. Yu Longhai, Wang Yihua, Song Shixian, Chen Guocheng, Zhao Shiyun, Wei Hongqi, Xu Yuanfeng, Cheng Jianxun, Zhang Peng, Yang Peixin, Wu Xiujun, Jin Zuyong, Liu Degang. Terminology of motor soft starter1 ScopeThis standard defines the basic terminology of motor soft starter devices, soft starter terms, soft starter terms and other soft starter Off the terms. This standard is applicable to the production and application of AC motor soft starter.2 terms and definitions2.1 Soft start soft-start By changing the motor terminal voltage, frequency or rotor circuit impedance, etc., so that the motor smooth acceleration to the specified speed of the process. 2.2 Soft stop soft-stop By controlling the motor terminal voltage, frequency or rotor circuit impedance, etc., so that the motor from a certain speed smooth deceleration, until the stop Running the process. 2.3 Soft starter soft-startdevice A combination of switching devices and their control, measuring and regulating devices, as well as their interconnection with parts, accessories, protective shell, support A device with a motor soft start function. 2.4 Step-down soft start soft-startbyvoltagereduction The motor's soft start is achieved by reducing the terminal voltage of the motor. 2.5 Liquid resistance soft start soft-startbyliquidresistor The soft start of the motor is achieved by smoothing the resistance value of the liquid resistance in series in the motor stator (or rotor) circuit. 2.6 Thermal resistance soft start soft-startbythermistor The starting current of the motor causes the temperature of the liquid resistance in series with the negative temperature coefficient in the stator circuit to rise, the resistance value is gradually reduced, So that the terminal voltage of the motor is gradually increased to realize the soft start of the motor. 2.7 Self-decompression soft start soft-startbyauto-transformervoltagereduction Two or more taps are extracted from the autotransformer to reduce the terminal voltage at the time of starting the motor, thereby reducing the starting current. The soft start of the motor. Note. rewrite GB/T 2900.18-2008, defined 4.4.22. 2.8 Magnetically controlled soft start soft-startbyseriesreactor By adjusting the excitation current of the reactor in series in the motor stator circuit, the saturation and reactance values of the reactor core are changed, thereby Reduce the motor terminal voltage, to achieve the motor soft start. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 33984-2017_English be delivered?Answer: Upon your order, we will start to translate GB/T 33984-2017_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 33984-2017_English with my colleagues?Answer: Yes. 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