What is a synchronous motor?

An electric motor (Motor) is a device that converts electrical energy into mechanical energy. It uses an energized coil (that is, the stator winding) to generate a rotating magnetic field and acts on the rotor (such as a squirrel-cage closed aluminum frame) to form a magneto-electric rotating torque. Motors are divided into DC motors and AC motors according to the power source used. Most of the motors in the power system are AC motors, which can be synchronous motors or asynchronous motors (the stator magnetic field speed of the motor does not maintain the same speed as the rotor rotation speed). The electric motor is mainly composed of a stator and a rotor. The direction of the energized wire's forced movement in the magnetic field is related to the direction of the current and the direction of the magnetic field lines (magnetic field direction). The working principle of the motor is the force exerted by the magnetic field on the current, causing the motor to rotate.

The motor model is a code that is convenient for use, design, manufacturing and other departments to make business contacts and to simplify the description of product names, specifications, types, etc. in technical documents. The following introduces you to the meaning of the motor model and other information.

1. Motor model composition and meaning

It consists of four sections: motor type code, motor feature code, design serial number and excitation mode code.

1. Type codes are Chinese pinyin letters used to characterize various types of motors.

For example:

Asynchronous motor Y Synchronous motor T

Synchronous generator TF DC motor Z

DC generator ZF

2. The characteristic code represents the performance, structure or use of the motor, and is also represented by Chinese pinyin letters.

For example:

The flameproof type is represented by B, YB axial flow fan is represented by YT

Electromagnetic braking type YEJ Frequency conversion speed regulating type YVP

Pole-changing multi-speed YD, YZD for cranes, etc.

3. The design serial number refers to the order of motor product design, expressed in Arabic numerals. Products designed for the first time will not be marked with design serial numbers, and products derived from a series of products will be marked in the order of design.

For example: Y2 YB2

4. The excitation mode codes are represented by letters, S represents the third harmonic, J represents the thyristor, and X represents the phase compound excitation.

For example: Y2-- 160 M1 – 8

Y: model, indicating asynchronous motor;

2: design serial number, "2" means the first A product with improved design based on the previous design;

160: center height, which is the height from the center of the shaft to the plane of the base;

M1: length specification of the base, M is medium, with the footnote " 2" is the second specification of M-type core, and type "2" is longer than type "1" core.

8: Number of poles, "8" refers to an 8-pole motor.

For example: Y 630-10 /1180

Y means asynchronous motor;

630 means power 630KW;

10 poles, stator The outer diameter of the iron core is 1180MM.

2. The specification code is mainly expressed by the center height, the length of the machine base, the length of the iron core, and the number of poles.

1. The center height refers to the distance from the motor axis to the bottom corner of the machine base. Height; According to the difference in center height, motors can be divided into four types: large, medium, small and micro. Among them, those with center height

H between 45mm and 71mm are micro motors;

H Those with H between 80mm and 315mm are small motors;

H between 355mm and 630mm are medium-sized motors;

H above 630mm are large motors.

2. The length of the machine base is represented by international letters:

S—short machine base

M—medium machine base

L —Long machine base

3. The length of the iron core is represented by Arabic numerals 1, 2, 3, 4,, from long to short.

4. The number of poles is divided into 2 poles, 4 poles, 6 poles, 8 poles, etc.

3. The special environment code has the following provisions:

Special environment code

"Gao" originally used G

Ship ("sea" ”) for H

for outdoor use W

for chemical anti-corrosion F

for tropical zones T

for humid tropical zones Use TH

Use TA in dry tropical zones

IV. Supplementary codes are only applicable to motors with supplementary requirements

Examples:

Products The meaning of each code of the motor model YB2-132S-4 H is:

Y: product type code, indicating asynchronous motor;

B: product feature code, indicating explosion-proof type ;

2: Product design serial number, indicating the second design;

132: Motor center height, indicating that the distance from the axis to the ground is 132 mm;

S: Motor frame length, expressed as short frame;

4: Number of poles, representing 4-pole motor;

H: Special environment code, representing marine motor.

Through the above detailed introduction to the motor model, I believe that when you see the product model in the future, you will be able to know the type, characteristics, design serial number, specifications of the motor, and the environment in which it is used.

Recently, preparations for the "2019 First China Electric Power Procurement and Trading Conference" hosted by Dianhu.com are in full swing. The number of companies signing up is increasing day by day, competing to start the first "big battle" in the spring and prepare for 2019. Strive for more high-quality customers every year!

Dianhu.com, as the leading power and electrical B2B platform in China, holds nearly 100 offline resource meetings every year, with the minimum number of people in each meeting reaching more than 150 and the maximum number of people exceeding 1,000. The procurement-themed conference has been held so far More than 20 events were held, and every event was a hit!

We can’t help but have this question: Why is the “2019 First China Electric Power Procurement and Trading Conference” still so popular? (Held in Nanjing on April 12)

Looking at the reasons, Dianhu.com summarized the following five aspects:

1. Clear purpose

Continuous advancement The upgrading of the electrical industry is the mission of Dianhu.com people. Dianhu.com will use the Internet platform and ecological resources to help more buyers and suppliers achieve all-round cooperation, empower partners, and create a better, more efficient, and more A transparent and smarter industry-wide production and marketing service system for electrical equipment and materials.

2. Focus on the theme

Abandon the gorgeous rhetoric and return to simplicity. Each meeting will invite well-known domestic experts and direct purchasers with actual order plans and needs according to the theme, and the topics will focus around the orders.

3. In-depth topics

The guest speeches in most forums last for 15-20 minutes. Buyers briefly and clearly introduce order requirements and requirements for suppliers; suppliers introduce companies and advantages; Industry experts provide industry-breaking and down-to-earth analysis.

4. Participation of famous companies

Procurement and corporate executives of well-known domestic and foreign companies actively participate, and management exchanges are highly complementary.

5. Different gains

For manufacturing companies:

1. Reach potential customers at low cost

2. Expand corporate influence< /p>

3. Understand peer information

···

For buyers:

1. Improve the supplier database and introduce a group of domestic First-class suppliers;

2. Understand the new products and technologies in the market.

···

In general, no matter what type of meeting it is, as long as it is based on meeting customer needs, it will be successful.

The "2019 First China Power and Electrical Procurement and Trading Conference" starts from an all-round perspective based on the background of procurement pain points, market bottlenecks, etc., combined with the current status of domestic procurement, and does not seek high-level questions, but only practical solutions. To address the pain points of enterprise procurement and market bottlenecks, an annual procurement event that is effective, efficient, practical and down-to-earth will be held.

This conference includes three theme sessions:

1. Direct user procurement sessions such as real estate/urban construction/industrial and mining;

2. Electric power/energy/industrial and mining Special procurement sessions for installation general contracting companies and design institutes;

3. Special procurement sessions for materials/accessories and auxiliary parts for electrical equipment factories.

Do you really want to come and participate? This conference will be held grandly in Nanjing on April 12th. It is currently in the crazy registration stage, so hurry up!

So far, more than 300 companies have registered, including power companies, real estate/urban construction/energy companies, power installation, complete electrical equipment, transformers, electrical materials and other companies. In this procurement and trading conference, Electric Tiger Network will use the Internet platform and ecological resources to help more buyers and suppliers achieve all-round cooperation, empower partners, and create better, more efficient, more transparent, and smarter electrical appliances. Full-industry production and marketing service system for equipment and materials.

Dianhu.com will give you some spoilers first. The following companies have already participated. Why don’t you sign up quickly?

1. Jiangsu Construction Engineering Group Co., Ltd.

Jiangsu Construction Engineering Group Co., Ltd. was founded in 1989 and was established with the approval of the Jiangsu Provincial People's Government. The Ministry of Housing and Urban-Rural Development has approved it as a special-level qualification for general contracting of housing construction projects. It also has first-level general contracting qualifications for municipal public engineering construction, first-level general contracting for mechanical and electrical installation engineering construction, first-level professional contracting for foundation and basic engineering, and professional contracting for building decoration and decoration projects. Level 1, professional contracting of steel structure engineering level 1, mechanical and electrical equipment installation engineering professional contracting level 1, and fire protection facility engineering professional contracting level 2 qualifications. Approved by the Ministry of Commerce, it has the qualifications to operate foreign contracting projects, the qualifications to operate foreign labor services, and the A-level implementation enterprise qualifications for complete sets of foreign aid projects. It has the comprehensive construction capabilities to undertake large and medium-sized projects such as high-rise buildings, large-scale industrial plants, large-scale public facilities construction projects, high-end decoration, large-scale municipal projects, environmental garden projects, and mechanical and electrical equipment installation.

2. Nanjing Jiangning Urban Construction Group Co., Ltd.

Nanjing Jiangning Urban Construction Group Co., Ltd. (referred to as "Jiangning Urban Construction Group") was established in December 2011 and is directly under the Jiangning District Government. state-owned enterprise group. The group has 10 holding subsidiaries, including Dayu Water Conservancy, Tangcheng Garden, Leheng Property, Lecheng Development, and Lelin Commercial Management. It has two member units, Jiangning Water Group and Jiangning China Resources Gas. It is a city construction and transportation company. A comprehensive urban operation service provider that integrates maintenance and development.

Since its establishment, the group has built more than 200 government-invested projects with a total investment of more than 35 billion yuan. As of the end of 2018, the group's total assets exceeded 40 billion yuan, and it was an AA+ subject credit rating enterprise. It has successively won honors such as the national "Worker Pioneer", the national "Ankang Cup" competition winning enterprise, and the national "Youth Civilization". Strive to become a “valuable urban construction investment, operation and maintenance service provider”.

3. Hongxiang Co., Ltd.

Hongxiang Co., Ltd. (stock code: 300427) is a national high-tech enterprise that has long been committed to the research of power system condition maintenance technology. and applications, it can provide customers with comprehensive solutions for power grid status maintenance and intelligent operation. Relying on its technology and brand advantages, the company has a leading market share in the power equipment condition maintenance industry segment with high visibility.

The company has always taken technological innovation and service marketing as the foundation of development, and insists on investing a large amount of manpower and material resources in the research and development of new products and new technologies every year. It has product production bases and technology research institutes in Australia and China. , in order to obtain international front-end information technology, continue to innovate, provide high-quality consulting, products and services to power customers around the world, and continuously launch many products with internationally leading technologies.

4. Jiangsu SUMEC Group Co., Ltd.

Jiangsu SUMEC Group Co., Ltd. (SUMEC Group) was established in 1978 and is an important member of China National Machinery Industry Corporation (SINOMACH) enterprise. SINOMACH is an important state-owned enterprise directly managed by the central government. In 2017, it ranked 256th among the world's top 500 companies.

5. Nanjing Architectural Design and Research Institute Co., Ltd.

Nanjing Architectural Design and Research Institute Co., Ltd. was formerly known as Nanjing Architectural Design and Research Institute, which was founded in 1956. National Construction Industry (Construction Engineering) Grade A Design Institute. At the end of 2003, it was approved by the Nanjing Municipal People's Government to be restructured into a limited liability company. The company has strong design and scientific research capabilities and advanced technical equipment. As of December 2017, *** has 385 employees, including 351 professional and technical personnel, including 250 intermediate and senior professional and technical personnel.

Our company not only has Jiangsu Province's "333" subject leaders and experts who enjoy government subsidies from the State Council, but also has a reserve of high-quality subject talents such as doctors and masters. Among them, there are 23 professor-level senior construction (engineers), 92 senior construction (engineers), 29 national first-class registered architects; 45 national first-class registered structural engineers; 25 national first-class registered public equipment engineers; national first-class registered public equipment engineers; There are 11 registered consulting engineers.

6. China Resources Land Co., Ltd.

China Resources Land Co., Ltd. (company abbreviation: China Resources Land, stock code HK1109) is the flagship real estate business of China Resources Group, a Fortune 500 company. One of the most powerful comprehensive real estate developers in the mainland, its main business includes real estate development, commercial real estate development and operation, property services, etc. As of the end of 2017, the company had more than 30,000 employees, total assets of HK$574.6 billion, presence in 62 cities at home and abroad, and more than 240 development projects.

7. Shanghai Urban Architectural Design Co., Ltd.

Shanghai Urban Architectural Design Co., Ltd. was founded in 1982 and restructured into a mixed-ownership enterprise in 2001. The company has multiple qualifications including Grade A in construction engineering design, Grade B in urban and rural planning, Grade B in landscape design, and special design of pressure pipelines. Its business scope includes architectural design, planning and design, interior design, landscape design, curtain wall design and corresponding commercial services. Planning consulting services.

The company ranks among the top 100 in the national survey and design industry, the top 20 in the Shanghai survey and design industry, a national advanced design enterprise, and has won many national-level design industry outstanding design awards. The company has been awarded the honorary title of 3A-level "Contract-abiding and Reputation-abiding" unit by the Shanghai Administration for Industry and Commerce for many consecutive years, and has passed the ISO9001:2000 international quality standard certification.

The company has nearly 500 professional designers and can provide customers with one-stop services throughout the entire process from early project consultation, scheme design, preliminary design to construction drawing design and later cooperation. The types of projects completed by the company cover various types of residential, commercial, office, hotel, hospital, school, data center and industrial buildings. The design projects cover nearly 30 administrative provinces and autonomous regions across the country. In recent years, the company's annual design sales have exceeded 300 million yuan and continue to maintain a high growth rate.

8. Luculent Smart Technology Co., Ltd.

Founded in 1999, Luculent is a leading domestic overall solution provider for the smart industry. The company adheres to the business philosophy of "connection, sharing, integration, and ecology", continues to innovate, and is open to cooperation, and has built "management consulting, solutions and products, IT operations and maintenance" in the fields of "smart factories, smart parks, and smart cities". services, IT supervision services” full-process and full-life service system.

9. Jilin Aoqi Mechanical and Electrical Group Co., Ltd.

Jilin Aoqi Mechanical and Electrical Group Co., Ltd. was formerly Changchun Dongda Mechanical and Electrical Equipment Co., Ltd., founded in 1992, after more than 20 years of development , has now become a business partner of Schneider Electric (China) Investment Co., Ltd., ABB (China) Co., Ltd., Siemens (China) Co., Ltd. and other internationally renowned electrical companies. Aoqi Group has become one of the well-known domestic enterprises, with various economic Its technical indicators have been at the forefront of the industry for many years, its customers are distributed all over the country, and its products are sold abroad.

Aoqi Group is an enterprise led by the R&D, production and sales of primary and secondary equipment for power systems. While insisting on making its main business stronger and bigger, it also vigorously develops civil electromechanical, environmental protection, Anti-corrosion engineering, exterior wall insulation, foreign trade, education and other undertakings. It is one of the comprehensive electrical enterprise group companies with the most comprehensive products, the best quality, the strongest supporting capabilities and the largest operating scale in the entire industry. It has won a number of national technology patents and provincial awards. In the past 20 years, it has worked for China FAW Group, Yatai Group (600881.SH), China Overseas Real Estate (00688.HK), Vanke Real Estate (000002.SZ), China CNR (601299.SH) and other national key projects and outstanding enterprises. unit, providing more than 1.5 million units (sets) of high-quality power system automation, protection and control products.

10. Hubei Huawang Electric Power Engineering Co., Ltd.

Hubei Huawang Electric Power Engineering Co., Ltd. was established in April 2010. It is a company engaged in new energy and power engineering design and construction. , general contracting and new product R&D high-tech enterprise with a registered capital of 100 million yuan. It is a wholly-owned subsidiary of Hunan Changgao High Voltage Switch Group Co., Ltd. (stock code: 002452). The company has Grade A qualifications for power transmission and transformation engineering design in the electric power industry, Grade B qualifications for new energy power generation, Level II professional contracting for power transmission and transformation projects, Level II power engineering installation qualifications, Level III qualifications for maintenance and test undertaking, and Grade C qualifications for engineering consulting. The company's main business scope includes: Class A engineering design and general contracting in the electric power industry (power transmission engineering and substation engineering); Class B engineering design and general contracting in the electric power industry (new energy power generation); engineering consulting; and Class II power transmission and transformation engineering construction. ; Design, construction, consulting, and contracting of distribution network projects and civil engineering projects; power distribution and sales, and power grid construction and operation; construction of smart grids and microgrids; research and development, production, and sales of new power technology products; sales of complete sets of power equipment and materials.

11. Jiangsu Shangshang Cable Group Co., Ltd.

Jiangsu Shangshang Cable Group was founded in 1967 and has a nationally recognized enterprise technology center and a postdoctoral research workstation. Shangshang Cable won the first place in the first "China's Most Competitive Enterprise in Cable Industry". The global insulated cable company ranks first in China and seventh in the world. In 2018, the company achieved sales of more than 20 billion yuan. The company also won the "China Industrial Award", the "Oscar" of the Chinese industry, and won the second and third "China Quality Award Nomination Award". Chairman Ding Shanhua was jointly rated as the national "Integrity Award" by the Propaganda Department of the CPC Central Committee and the National Development and Reform Commission. star".

Due to limited space, the content of this issue will be spoiled here. If you want to know more spoilers, please follow the WeChat ID of Dianhu.com. If you are still hesitating, take a look at these buyers and suppliers. If you have time and leisure to wait and see, why not sign up and experience it for yourself. As the saying goes, reading ten thousand books is not as good as traveling ten thousand miles. No matter how many miles you watch others travel, it is not as good as one step you take.

For conference sponsorship and participation, please contact the organizing committee:

Manager Dou, 15895895073

Lin Ershao, 18512523785

Manager Xu , 13382789005

Manager Zhang, 13382789006

Manager Yan, 18994110620

Identify the mini program and register now

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