The off grid solar inverter is a device that converts DC power into AC power. It is an important part of solar system. Next is an introduction to how to choose off grid solar inverter.
General content:
It should have sufficient rated output capacity and load capacity
It should have high voltage stability
It should have good over-current protection and short circuit protection
Easy to maintain
Choosing the best inverter for your house
It should have sufficient rated output capacity and load capacity
The selection of off grid solar inverters must first consider having sufficient rated capacity to meet the electrical power requirements of the equipment under the maximum load. For the inverter with a single device as the load, the selection of the rated capacity is relatively simple. When the electrical equipment is a purely resistive load or the power factor is greater than 0.9, the rated capacity of the off grid solar inverter is selected as the electrical equipment 1.1 to 1.15 times the capacity is enough. In the inverter apparatus is a plurality of load, the capacity of the inverter is selected to consider several possibilities of electrical equipment work simultaneously, i.e., the “load factor at the same time.”
It should have high voltage stability
In off grid solar inverter systems, batteries are used as energy storage devices. When the nominal voltage of 12V battery charges in a floating state, the voltage up to 13.5V, the overcharge state for a short time up to 15V. When the battery is discharged with a load end voltage can be reduced to or below 10.5V. Battery terminal voltage fluctuations of up to about 30% of the nominal voltage. This requires an off grid solar inverter that has a better performance regulator, solar power generation system to ensure a stable AC voltage supply.
It should have good over-current protection and short circuit protection
During the normal operation of the off grid solar inverter system, an overcurrent or short circuit in the power supply system caused by load failure, personnel mis-operation, and external interference, etc., is completely possible. Off grid solar inverters are most sensitive to overcurrent and short-circuit phenomena in external circuits, and they are the weak link in off grid solar inverter systems. Therefore, when choosing an off grid solar inverter, it must have a good self-protection function against over-current and short-circuit.
Easy to maintain
It should be a normal phenomenon that high-quality off grid solar inverters fail due to component failure after several years of operation. In addition to a good after-sales service system for manufacturers, manufacturers are also required to have good maintainability in terms of the production process, structure, and component selection of off grid solar inverters. For example, there is sufficient damage to components or spare parts readily available, good compatibility components; in the process the structure, easily removable components, easy to replace. Thus, even if the fault occurs off grid solar inverters, may quickly return to normal.
Choosing the Best inverter for your house
It is always necessary to think about above-mentioned items when you choose inverter, but don’t forget there are still many factors that should be taken into consideration: price, performance, and durability.
SUNTAO was established in 2018 and we are always here to offer the most helpful advice to you. Our website is https://www.suntao-solar.com/.