Shanghai Dean Electrical Co., Ltd. is a high-technology enterprise which belongs to DEAN GROUP. It specializes in research, development and production of electrical test equipment for enamelled wire and  EV motor manufactures worldwide.

we are the first one who  invented the " tan delta tester ", "Corona resistant tester " for enamelled wire industry.

recently ,  we had been focusing  on  the research of EV motor testing equipments and our extensive process know how of electrical motor production and quality level, allows Dean to align the features of  their testing equipment with the outmost market requirement.
From income raw material control in laboratory, to inline quality control of all electrical parameters up to finished EV drive evaluation, Dean offers a wide range of systems and devices to measure the production quality.
The strong technical team supports the international customers from R&D up to finished turnkey solutions.  An additional powerful international network of specialists and institutes allows Dean to go beyond boundaries.
As expert in the International Electrical Committee (IEC) to set up international standards for electrical insulation material, all the required testing for the EV drives will be at the highest possible level.