The solutions to controller tripping mainly include the following:

1. Check for circuit short circuit: By carefully observing the circuit diagram or using a circuit tester for testing, identify the short circuit point and repair it. ‌

2. Reduce load: If the load exceeds the rated power of the controller, it is necessary to reduce the load or replace the controller to meet the greater power demand.

3. Check equipment grounding: Ensure good grounding of the equipment to avoid tripping caused by leakage.

4. Balance three-phase load: Calculate the three-phase current, ensure the balance between the three-phase currents, and solve the problem of load imbalance.

The reasons for controller tripping may include:

1. Circuit short circuit: A short circuit in the circuit can cause a sharp increase in current, overload the controller, and lead to tripping.

2. Overload: Electrical appliances operating beyond their rated power result in excessive current, causing the controller to be overloaded and unable to support, leading to tripping.

3. Leakage: Poor grounding of electrical appliances causes current to deviate from the circuit and flow to the ground, triggering the controller's protective measures and tripping protection.

4. Load imbalance: In three-phase electricity, unbalanced three-phase loads can easily cause the controller to trip.

Preventive measures and daily maintenance recommendations:

·Regularly inspect circuits and equipment: ensure that circuits and equipment are in good condition, avoid short circuits and overloads.

·Proper grounding: Pay attention to grounding when installing electrical appliances to ensure good grounding of the equipment.

·Balanced load: When using three-phase electricity, try to maintain a balanced three-phase load to avoid tripping caused by imbalance.

·Regular maintenance: Regularly check the status of the controller, promptly identify problems, and carry out repairs or replacements.