Portable substation electrical equipment electrical test mobile power supply

A portable substation electrical equipment electrical test mobile power supply comprises a box body and a power supply module. A control panel is arranged on the upper portion in the box body, a containing frame is fixedly arranged on the lower portion in the box body, a gap is reserved between the containing frame and the inner wall of the box body, a first through hole and a second through hole are correspondingly formed in the two opposite side faces of the box body respectively, an air inlet mechanism is installed in the first through hole, and an air exhaust mechanism is installed in the second through hole. The power module is fixed to the containing frame and connected with the control panel through a wire. According to the utility model, the power supply module is arranged in the box body in a suspended manner, air is conveyed into the box body by using the air inlet mechanism, and hot air in the box body is timely extracted by using the air exhaust mechanism at the other end, so that air flow in the