... CE, CCC, ISO9001 2.Suitable to AC motor 6KV/10KV/300KW-9000KW 3.It adopts ... free maintenance, save maintenance cost4)highly increase the motor service life5)accurate setup start torque /start current/ ... , and multiple SCR series/parallel to motor, to protect the motor completely.2 . it has a high ... Feature:1.It perfectly protect the stator and motor from faults like short circuit, over current,current ...