Power transmission system used for energy storage vehicle

The utility model discloses a power transmission system used for an energy storage vehicle. The system is used for charging an energy storage power supply of the energy storage vehicle. The system comprises a detection device and a display device, wherein the detection device is used for detecting a charging current and a charging voltage of the energy storage power supply, and the display device is in communication connection with the detection device and displays a charging current value and a charging voltage value. With the above-mentioned arrangement, the system can prevent a problem that a driver wrongly operates a vehicle in a charging process to cause an arc discharge between a current collector and a power supply rail.