History

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 Wuhan Nanrui Electrical,Co., Ltd had researched and developed NR3600 digital grounding resistance tester and insulation resistance tester in February, 2012.

 We had researched and developed 50kV-200kV oil-immersed testing transformer successful in Jan, 2002. Then 4 months later, we researched and developed YDQ series 50kV-500kV inflatable testing transformer, and made a mass production in June the same year.

 We had researched and developed CX series multifunctional control box, in March 2003. 5 months later, we researched and developed SLQ-82 strong current generator, and then in the same years of December, we researched and developed 20000A three-phase strong current generator, which with continuous trouble-free operation to date.

 We researched and developed transformer calibrating device successfully in February 2004, now we make it to upgrade HEF-H + type simulation type transformer field calibrator;

 We researched and developed 0.01-0.05 grade HJ series standard transformer and HL series standard transformer, in August of the same year, we finished the R&D work of standard voltage transformer load box and standard current load box, now we make them upgraded to FY-93 current load box and FY-99 tank voltage load box;

 In April of 2005, we researched and developed HEJS-H speed multifunctional transformer calibration table, in December of the same year, we also finished the R&D work of HEF-G transformer calibrator, that means we have made a higher level of R&D strength;

 In July 2006, we researched and developed FRC series AC/DC voltage divider, and gained a widely praise from the users, at the end of this year, the sales reach to 300 sets.

 In February 2007, we researched and developed NRBZ automatic variable ratio group tester, 7 months later, we successfully developed the insulating oil dielectric strength tester;

 On July 1, 2008, we completed the nationalization, and renamed Wuhan Nanrui Electric Co., Ltd, the registered capital is 5 million;

 In August 2008, we successful researched and developed TAG series wireless nuclear phase tester and FRD series voice nuclear phase tester;

 In January 2009, we successful researched and developed NRP series of pulse divider, which marking our company's whole level of the technical strength as in the domestic leading and international first-class level;

 In April 2009, our transformer integrated test stand have been exported to Indonesia successfully, the export sales reached to 3.1 million. In May of the same year, we have started ISO9001:2000 International quality management system certification,

 In 2009, our annual sales is 12 million, and exports sales and export work have made a steadily progress.

 In September 2009, we successful researched and developed JFD-1000 series partial discharge teste, in December of the same year, we have completed JFD-2000 series partial discharge tester, the phase performance have the company developed the r, December the same year successfully completed, the phase performance achieved high level in domestic;

 In December 2009, we held a customer appreciation, and received many domestic and overseas customers, we were given a high evaluation, and the quality and service get a widely favorable comment for a long time;

 In 2010, we launched a comprehensive 6S management mode, at the same year, our company established a broader and more comprehensive partnership with Xi'an Jiaotong University, Huazhong Science and Technology University, Wuhan University and other top universities, to escort our technological strength in a leading position.

 In 2010, the annual sales of  FRC AC/DC voltage divider reached to more than 900 sets, is 942 sets . The annual sales of TAG wireless nuclear phase tester exceeded 400 sets, demonstrating that our company is in the leadership of high-voltage measurements ;

 In February 2010, we researched and developed NRXZ series resonant voltage testing equipment, in June of the same year, we completed R & D of JFD-3000 series of partial discharge tester , the sales exceeded 50 sets at the end of this year;

 In March 2011, we researched and developed NRHLY series high-precision loop resistance tester, the annual sales exceeded 200 sets, this series instrument resolution reach to 0.01 micro ohm, the stability and repeatability belong to the leading domestic level.

 In September 2011, we independent researched and developed three-phase and six-phase microcomputer relay tester, the annual sales reached to 250 sets, and each phase performance indicators has reached the leading domestic level;

 In 2012, we  gained two patent of inventions , namely DC high voltage generator ( Patent No. : ZL 2012 2 0391370.9) and the divider high-voltage measuring device ( Patent No. : ZL 2012 2 0355014.1)

 In January 2013, our company developed the DC resistance tester's accuracy,which can reach 0.1 grade, it’s range from 1A-100A,with nine kinds of specifications totally, the repeatability and stability reached domestic leading level ;

 In May 2013, our company developed the DC resistance tester's accuracy,which can reach 0.2 grade, it’s range from 1A-100A,with nine kinds of specifications totally, the repeatability and stability reached domestic leading level ;

 In 2013, our independent research and development of 800kV pulse divider metering stations have got through the National Identification.
 In April 2013,Wuhan Nanrui Electric Co., Ltd. was awarded as Wuhan City Contract-credit & Trustworthy Enterprise by Wuhan administrative bureau for industry and commerce.