There are many reasons for photovoltaic inverter damage. The following are some reasons that may cause photovoltaic inverter to burn out:
- Excessive temperature: Photovoltaic inverters need good heat dissipation, otherwise the components on the circuit board will be easily damaged due to excessive temperature. For example, in hot weather, the temperature inside the inverter may rise above the operating temperature of the components, causing the components to be damaged or burned out.
- Overvoltage or overcurrent: If there is overvoltage or overcurrent in the system, the components on the circuit board of the inverter are easily damaged or burned by electric shock. For example, photovoltaic panels may generate excessive voltage due to excessive solar radiation, or may generate excessive current flowing through the inverter circuit board when encountering a short circuit. These abnormal voltages or currents may cause the inverter to malfunction. The device is damaged or burned.
- Load problem: If the current output by the inverter exceeds its rated current, or the connected load has a short circuit or open circuit, the inverter’s output circuits, such as high-power internal switches and multipliers, may be overwhelmed and fail. Malfunction lolsolar.
- Other factors: Other factors that exist during the design, installation, operation and maintenance of the inverter, such as incorrect wiring connections, excessive paint, small electrostatic shock, etc., may increase the risk of the inverter burning out.
In short, there are many reasons for inverter burnout, which are usually related to excessive temperature, over-voltage, over-current, load, etc. In order to extend the service life of the inverter and ensure its stability, we need to pay attention to various factors encountered during the design, installation, operation and maintenance of the inverter, and take necessary measures to avoid the inverter burning out.
Common faults of photovoltaic inverters and their solutions
Common faults of photovoltaic inverters and their solutions are as follows:
- Fault 1: The inverter cannot operate normally
Solution: First check whether the power supply is normal and whether the wiring is correct; then check whether the inverter has a fault code display, and repair it according to the fault code; if the above operations cannot solve the problem, you need to replace the circuit board of the inverter or the entire inverter. device.
- Fault 2: Insufficient output power of the inverter
Solution: Check whether there are shadows, pollution and other factors that affect the power generation efficiency of photovoltaic panels in the system; check whether there are problems such as panel damage and aging; reinstall and adjust the panels to ensure that they can maximize instant power generation.
- Fault 3: Inverter leakage current is too large
Solution: Check whether there is any problem with the ground wire of the power supply and whether the wiring is correct; check whether the internal components of the inverter are damaged and need to be repaired and replaced; check whether there is any personal safety hazard, and power on again after inspection and repair.
- Fault 4: The inverter protection function starts frequently
Solution: First check the inverter data records or fault codes to determine the fault point; check the parameters set by the inverter at the factory to see if they are set appropriately; if the protection function cannot be turned off, it is recommended to replace the inverter lolsolar.
In short, for photovoltaic inverter failures, solutions need to be investigated one by one from both external and internal factors to ensure the stable operation of the inverter and thereby ensure the efficient, safe and stable operation of the photovoltaic power generation system. It should be noted that specific solutions need to be customized according to different brands, models and fault types.
If the photovoltaic inverter is broken, can I replace it directly?
Normally, if the photovoltaic inverter is broken, it can be replaced with a new one. But it’s important to note that replacing an inverter isn’t the only way to solve the problem. Before replacing the inverter, you need to consider the specific cause of the failure to determine whether replacement is needed.
If the inverter is only caused by a faulty circuit board or damaged components, it is also feasible to replace the faulty part or repair the circuit board, which may be more economical than buying a new inverter. At this time, you need to find professional electrical maintenance technicians to carry out inspection and repair.
However, if the inverter failure is too serious, such as the circuit board inside the inverter is damaged, components are burned, etc., it may be more cost-effective to replace it with a new inverter. The specific circumstances of the fault need to be examined to decide whether it would be wiser to replace the entire inverter rather than repair it.
In short, replacing the photovoltaic inverter can solve the problem, but the specific cause of the failure needs to be evaluated and judged to determine whether it needs to be replaced, or which parts need to be replaced, so as to better protect work efficiency and effectively ensure renewable energy power. Continuity of production.
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