Hubei Tianrui Electronics Co., Ltd. has been focused on research and development and production of current-voltage sensors based on the principle of electromagnetic induction, and the first ring current and voltage converter for the promotion of relay protection and automation devices.
Tianrui Company is a member unit of relay protection and automation equipment branch of China Electrical Equipment Industry Association, a member of Working Committee of Smart Grid Equipment of China Electrical Equipment Industry Association, a member of Communication Committee of National Standardization Technical Committee of Electrical Instruments and Instruments, a “Miniature Current Transformer” Transformer “industry standard main drafting unit. Tianrui has now won two invention patents, 21 utility model patents and 3 software copyrights, the technical strength has been widely recognized by the power industry.
First, the company's main technology development process:
In 1996, Tianrui company was established in Tianmen City, Hubei Province;
In 2000, the leading miniature precision current-to-voltage converter passed the test of the National Relay Quality Supervision and Inspection Center and the technical standards to the competent department of the nation for record keeping and obtained the CMC license of the country to manufacture measuring instruments.
In 2003, it successfully declared ”High-tech Enterprise“ and was awarded ”AA Grade Credit Enterprise“。 The leading product miniature precision current-to-voltage converter won the first prize of scientific and technological progress and passed ISO9001: 2000 quality management system certification at one time.
In 2004, it was elected as a member of National Electrical Instrumentation Standardization Technical Committee, member of relay protection and automation equipment branch of China Electrical Equipment Industry Association, and participated in the drafting of JB / T10665-2006JB / T10667-2006;
In 2006, the manufacture of products to implement RoHS requirements and testing by the certification body;
In 2007, he was elected as the director unit of relay protection and automation equipment branch of China Electrical Equipment Industry Association and successfully undertook the technical seminar for industry in Wuhan.
In 2008, it was appraised as one of ”30 Innovative SMEs in Hunan Province“ by the Information Industry Department of Hubei Province;
In 2009, the trademark of ”Tianrui“ was registered with the Trademark Office of the State Administration for Industry and Commerce for one invention patent and nine utility model patents.
In 2010, it was awarded the ”National Intellectual Property Pilot Unit for Enterprises and Enterprises“ by the State Intellectual Property Office and passed the examination and approval of national high-tech enterprises.
In 2011, it was elected as a member of the Working Committee of Smart Grid Equipment of China Electrical Equipment Industry Association;
In 2012, a self-calibration system and calibration device with a 5A / 1mA ~ 5A / 500mA miniature current transformer ratio error of less than 0.01% was established to fill the gap in China through the expert team led by Zhang Zhonghua, a member of the Chinese Academy of Engineering.
In 2013, Tianrui Series Current and Voltage Transformer was awarded the famous brand in Hubei Province;
In 2014, it was approved by Hubei Provincial Enterprise Technology Center.
In 2015, it obtained 5 utility model patents and 1 software copyright.
Self-developed ”（100 / √3 ~ 480） V / （0.1 ~ 2） V power frequency micro-voltage transformer self-calibration system“ by the Chinese Academy of Sciences Cheng Shijie as the leader of the expert group identified to fill the gaps.
In 2016, it obtained one invention patent.
Electronic sensor has become a research and development center, the company's products from low to high pressure extension.
In 2017, the residual current transformer developed won the experiment certificate of National Electronic Consumption Quality Supervision and Inspection Center.
Tianrui trademark won the title of China Well-known trademarks.
Second, the company focus on technological innovation
Tianrui company is the leader in the field of power sensors, is the largest manufacturer of relays dedicated transformer manufacturer, focusing on the development and production of current-voltage sensors based on the principle of electromagnetic induction, and the first ring current and voltage converter for the promotion of the following Electric protection and automation devices, has now become the mainstream of the industry. Companies to meet customer demand as the focus of work, pay attention to product quality, promote product standardization, business performance has been booming, the past five years the average annual sales revenue increased by more than 20%, of which low-voltage device transformer shipments ranked first in the industry, It is an important force related to power sensing devices based on power sensing devices.
Tianrui now has the Hubei Province Bureau of Quality and Technical Supervision issued the ”People's Republic of China manufacturing measuring instruments permit“， with the power sensor R & D, production and sales qualifications. At the same time, the company is also a state-level high-tech enterprise, has undertaken a national science and technology plan, the provincial science and technology plan 12, with 18 patents, is the current domestic variety, advanced technology and complete functions of the electricity sensor products manufacturer one. In the year of 2013, it was awarded the ”Famous Brand Product of Hubei Province“ awarded by the Quality Association of Hubei Province and the Leading Group Office of Strategy Implementation of Quality-oriented Provinces in Hubei Province. In 2015, it was awarded as ”Famous Trademark of Hubei Province“ by Hubei Famous Trademark Recognition Committee, In 2017, it won the title of China Well-known Trademark.
The company's leading international ”5A / 1mA ~ 5A / 500mA power frequency current proportional self-calibration system“ and ”（100 / √3 ~ 480） V / （0.1 ~ 2） V power frequency micro-voltage transformer self-calibration system “In the micro-current transformer traceability technology to fill gaps in the field at home and abroad to protect the company in the field of charge sensor measurement and measurement with the leading edge.
Third, a high level of research and development team
Tianrui company R & D team by a number of more than 10 years of power sensor product research and development experience of the core technical staff as the backbone, with more than 10 years of power sensor research, design, manufacture, operation experience of the core technical staff, is the design quality Important guarantee. Through active R & D team culture and distribution policies, the company encourages senior R & D personnel to be reassured and develop their own technology. They strive to innovate technically and reach a higher level of R & D technology. And through open and honest, effective technical training mechanism to promote the rapid growth of new joining technical staff, the company's research and development capabilities have always been higher level.
