How to maintain the electrical system of semi-trailer

There are many systems in the semi-trailer, and we need to pay attention to all the maintenance work during use to prevent it from malfunctioning and causing us economic losses.

     The pressure protection of the main power supply of the trailer specifically means that the main circuit can be automatically disconnected after the power supply is interrupted, and it cannot be connected by itself. During operation, the reset button is usually connected to the coil of the main power contactor to realize the power loss protection. .

     Maintenance and inspection of electrical equipment, usually in the event of a power outage. When the isolating switch is in the disconnected state, it should be disconnected from the disconnection point with obvious distance, so that the maintenance personnel can intuitively confirm that the main power circuit has been disconnected, and the short circuit protection of the main power supply. When the insulation of the electrical equipment on the semi-trailer is damaged, and a shell collision or a phase-to-phase short circuit occurs, the short-circuit protection device of the main power supply should act quickly to cut off the faulty power supply.