Input: AC 380V( single-phase), output AC 0-2000V,100A. It can be served as voltage fluctuation simulation source in railway locomotive DC 110V control source cabinet test-------as simulation test equipment for voltage operation of railway grid (25×(1+16%/1-25%)kV\25×(1+16%/1-34%)kV , With big magnitude of constant voltage fluctuation). This equipment can automatically adjust and stabilize voltage by manual control or numerical control. It also has a high output level, which far exceeds users' need and tests' requirement.