small volume,light weight:lt is only1/4and 1/5 of the weight and volume of the outdated products respectively.Low loss:With the actual loss less than 0.1,little radiation,low temperature rise,and good energy conservation effect.Excellent self-healing performance:When a part of the isolation is fed through due to the over voltage,it is capable of self-healing soas to continue the operation,therefore the reliability is improved greatly.