Rectifier bridge damage causes

Rectifier bridge damage causes

Bad quality of the device itself；

Damage of rear stage circuit, inverter power switching devices, resulting in damage to the rectifier bridge flowing through the short-circuit current；

Too high voltage of the power grid, and the grid encounters lightning strikes and overvoltage surges. Small internal resistance of the grid, resulting in all over-voltage added to the rectifier bridge;

Input is out of phase, causing the rectifier bridge to be damaged due to increased burden;

Rectifier bridge replacement precautions

Find the root cause of the damage caused by the rectifier bridge and eliminate it to prevent damage from occurring again when the new rectifier bridge is replaced;

Replace the new rectifier bridge,and ensure the welding reliability of the welded rectifier bridge.  Ensure that the electrical safety spacing with the surrounding components, with screws coupled to tighten, to prevent contact resistance and heat.;

Conductive heat conduction with the heat sink, require a good coating of silicone grease to reduce thermal resistance;

Replace the rectifier bridge with products of the same model and manufacturer to avoid damage caused by uneven current.