Siemens' scope of supply includes: train control and diagnosis system, traction inverter, auxiliary inverter, brake resistor, HV box and Pantograph, as well as traction motor and gear box.
This paper analyzed the working principle and limitation of electrical system of boxresistor-stove. And introduced the principle and practice to remake this system with ac SSR.
Jinan precise scientific instruments co., LTD. Was founded in 1991, the production of boxresistor-stove has successfully exported (OEM) to Japan, Russia, South America and other countries.