This series high voltage flameproof three phase induction motors are working by self-fan-cooled. This series motors have many remarkable features such as compact construction, light, excellent performance, little vibration, low noise, safe and relaiable operation and easy maintenance etc. The performance conforms to the China National Standard GB3836.1 and GB3836.2. There are "ExdI" and "ExdIIBT4" type in the series of products according to the requirements of the application. They are safe to use in the locations where there are explosive atmospheres and can be use to drive ventilators, water pumps and compressors etc.