How to determine the LED street lamp power supply has a problem - - How to solve the problem of LED street lamp power supply

How to determine the LED street lamp power supply has a problem - - How to solve the problem of LED street lamp power supply

1-1, LED street lamp power supply problem - - - Heat anomaly:

reasons: 1. Overload, then load does not match; 2. Beyond the rated power of the environment temperature; 3. The power shell heat can't pass out.

elimination method: 1. Check the load and power match, load should be 20% ~ 90% of the power rating is preferred; 2. Confirm whether the environment temperature in the range of specification; 3. Installed correctly according to the requirements of specification, the power supply in ventilation and heat transmission conductor as far as possible.

2, 2 - LED street lamp power supply problems - Power supply cannot be started:

reasons: 1. Wiring is correct, the power cord is connected; 2. Line voltage do not tally with the power input voltage; 3. Beyond the power supply rated running at low temperature.

elimination method: 1. Need to confirm the wiring is correct; 2. Please make sure the grid voltage and the power supply voltage are consistent; 3. Confirm that the environment temperature is outside the range of low temperature

3, 3 - LED street lamp power supply problems - Supply electricity appeared after the LED flashing phenomenon:

reasons: 1. The LED load and power supply don't match each other; 2. The LED light load.

elimination method: 1. The rated working voltage of the LED module, working current is in the range of power supply; 2. Check the matching condition of load and power supply, power load should be 20% to 90% of the rated power is preferred.

4, 4 - LED street lamp power supply problems - Use after a period of time appear unable to work

reasons: 1. A protection actions; 2. Power supply damage

elimination method: 1. Using a multimeter to check the power of the input and output terminal without exception to turn on the juice do after confirmation; 2. As to determine the power damage such as burning, blast machine, the deformation occurs, please contact the service centre to make the right treatment.

5, 5 - LED street lamp power supply problems - Electricity without reaction

reasons: 1. The input voltage is lower than the rated working voltage; 2. Load and power supply does not match the 3. Lug too dirty; 4. Mechanical damage during transport or handling.

elimination method: 1. The multimeter voltage gear confirm whether power grid voltage is lower than the plate shown in the input voltage range; 2. Check the load and the power matching, power load should be 20% ~ 90% of the rated power is preferred; 3. Check whether the terminal of power input and output line oxidation of 4. Confirm whether power body deformation, fracture anomalies.