1.The newly fitted parts are the current overlad automatin protection system,the direct viewing ammeter and the power-supply control switch.
新设流过载自动保护系统,直观式流表及源控制开关。
2.The main structure have:Electromagnet and Heng galvanism source, numerical type Gauss account(the effect of Huo Er) and ammeter and volt account, have control dish of illuminate the system.