Eternal Inverter 
When installing the low voltage off-grid hybrid solar inverter, correct installation and debugging are the key steps to ensure the stable and efficient operation of the system. Low voltage off-grid hybrid solar inverter is not only the core component of photovoltaic power generation system, but also responsible for converting solar energy into power supply load, so every detail in the installation process is very important. From site selection, equipment connection to safety protection measures, the negligence of any link may affect the performance of the system or even bring security risks. This paper will introduce in detail the key points that should be paid attention to when installing the low voltage off-grid hybrid solar inverter to help you ensure the smooth installation of the system and obtain the best use effect.
Safety precautions during installation
- Power-off operation: before installation, ensure that all equipment is not connected to the power supply. After installation, power-on tests are carried out on the battery, solar panel and load step by step
Appropriate protective equipment: insulating gloves and goggles are required when connecting the battery with the low voltage off-grid hybrid solar inverter; When operating in wet environment, you need to stand on the insulated floor or wear insulated shoes
Check the polarity of wiring: pay special attention to the positive and negative poles of batteries and solar panels when wiring, and ensure that the positive and negative poles of each cable are clearly marked for easy installation and inspection
Safety of location: avoid installation in wet or leaking places; ensure that the installation location has good ventilation; avoid direct sunlight on the equipment
Connection of the battery: avoid accidental contact of metal tools with the positive and negative electrodes of the battery when connecting the battery; install a circuit breaker and fuse suitable for current at the battery connection port; store the battery separately to avoid contact with other conductive objects
Check the grounding: connect the grounding wire to the grounding port of the low voltage off-grid hybrid solar inverter to ensure that the grounding wire is tightly connected without looseness, so as to avoid problems such as electric leakage or equipment failure
Avoid overload use: according to the rated power of the low voltage off-grid hybrid solar inverter, avoid overload connection with high-power load; when the system is just installed, gradually increase the load and observe whether the system is running normally. Do not access a large number of load devices at one time
Maintain fire safety: put fire extinguishers near the installation area for emergencies; avoid direct exposure of cables to sunlight or contact with flammable materials, and keep the insulation layer of cables intact
- Refer to the installation manual: read the installation manual of the low voltage off-grid hybrid solar inverter carefully and operate in strict accordance with the manufacturer’s instructions; don’t change the equipment and devices without permission during installation to avoid safety problems caused by improper settings
Inspection after installation: after all wiring is completed, check whether the battery, solar panel, load wiring port, etc. are firmly connected and not loose; after starting the system, observe the display panel of the low voltage off-grid hybrid solar inverter to confirm that all parameters are running normally. If there are any alarm prompts, the reasons should be investigated and adjusted in time
Common mistakes and avoidance methods
The positive and negative electrodes are connected incorrectly, and the avoidance method: carefully check the polarity identification of each cable and port before wiring to ensure that the positive electrode is opposite to the positive electrode and the negative electrode is opposite to the negative electrode. Before installation, polarity tester can be used to confirm polarity, so as to avoid equipment damage caused by wrong connection
Improper grounding, avoidance method: before installation, determine the grounding conditions of the installation location, ground as required, and ensure that the grounding connection is firm. Use the ground wire test tool to check the grounding effect regularly to ensure that the grounding resistance meets the safety standards
Improper cable specification selection, avoidance method: select the appropriate cable specification according to the current and voltage requirements of the low voltage off-grid hybrid solar inverter. Usually, thicker cables are selected to ensure the stability of current transmission, especially when long-distance transmission is carried out
No circuit breaker or fuse is installed. How to avoid it: Install appropriate circuit breakers and fuses between the battery and the low voltage off-grid hybrid solar inverter and at the load output end to prevent over-current and short circuit and ensure the safety of equipment and personnel
Unreasonable installation location, avoidance method: choose a dry, cool and well-ventilated location for installation, avoid direct sunlight, humidity and overheated areas, and maintain a heat dissipation space of more than 30cm around the equipment
Overload operation, avoidance method: calculate the total load power of the system before installation, ensure that the load power is lower than the rated power of the low voltage off-grid hybrid solar inverter, and gradually increase the response of the load observation equipment to avoid one-time access to high-power load
Incorrect installation sequence, avoidance method: operate in strict accordance with the installation sequence, first connect the battery, then connect the solar panel, and finally connect the load, and then gradually power on the test after all the equipment is connected
Loose connection, avoidance method: tighten the screws at each connection point to ensure that the connection is firm and not loose. Wrap key contacts with locknuts or insulating tape to prevent loosening
Lack of waterproof protection, how to avoid it: When installing outdoors, use waterproof joints and protective covers to ensure the waterproof property of the equipment and wiring parts, and avoid water vapor or rain from entering the equipment
Ignore the setting of battery type, and avoid it: before powering on, set the correct charging mode on the low voltage off-grid hybrid solar inverter according to the battery type (such as lead-acid battery and lithium battery, etc.) to ensure that the battery is charged at the appropriate voltage and current
Lack of testing after installation, avoidance method: After installation, test item by item, including voltage, current, charging state, etc., to ensure the normal operation of various parameters, and observe that the system is normal for at least 15-30 minutes before it is officially activated
Maintenance
Regularly clean the equipment surface and vents: place the low voltage off-grid hybrid solar inverter in a well-ventilated place, check the vents once a month, and clean the vents and shell surfaces with dry cloth or low-pressure air to ensure good heat dissipation effect inside the equipment, and avoid using water for cleaning to prevent moisture from entering the equipment and causing short circuit
Check the firmness of cable connection: check the cable connection once a quarter, especially the terminals of batteries and solar panels, to ensure that there is no looseness and corrosion. It is necessary to pay attention to power off the equipment during inspection and replace the corroded connectors in time
Inspection and maintenance of the battery: check the battery voltage and electrolyte level every month to see whether there is expansion, leakage or deformation, and ensure that the temperature of the battery room is moderate to avoid super-cooling or overheating; replace aging batteries in time
Temperature monitoring and overheating protection: check the temperature sensor of the equipment regularly to confirm whether it works normally, and keep sufficient ventilation gap and check the ventilation effect regularly
Monitoring system operation data: record the system data once a month, analyze the power output and charging efficiency of the equipment, and check the performance of the battery and photovoltaic panel if the data is abnormal, so as to ensure the stable operation of the low voltage off-grid hybrid solar inverter
Test the protection function regularly: you can test the protection function once every six months, gradually increase the load or simulate short circuit, and observe the response speed and protection effect of the low voltage off-grid hybrid solar inverter
Check the waterproof and moisture-proof condition of the system: If the low voltage off-grid hybrid solar inverter installed outdoors needs to ensure its waterproof performance, check the sealing and protective cover of the equipment regularly to avoid aging or damage affecting the equipment
Check the remote monitoring system: check the connection of remote monitoring equipment once a quarter, and ensure the network connection is stable to achieve normal data uploading
Conduct comprehensive performance evaluation every year: contact professional maintenance personnel to conduct comprehensive inspection every year, including battery capacity test, output power measurement, internal component inspection, etc., to ensure long-term stable working condition. If the performance declines, it is necessary to replace the aging parts in time to ensure that the equipment works in the peak state
When installing the low voltage off-grid hybrid solar inverter, the details determine the success or failure. Accurate control of each link can not only ensure the safe and efficient operation of the system, but also directly affect the long-term stability and performance of the photovoltaic system. Correct installation is not only to protect the equipment, but also to maximize the interests of users. By choosing a professional installation team, strictly observing safety regulations and carrying out regular maintenance, you are not only saving energy costs for yourself, but also laying the foundation for future sustainable development
The installation of low voltage off-grid hybrid solar inverter is not a temporary thing, but a solid foundation for your energy independence and green lifestyle. Every decision is contributing to a more energy-saving and environmentally friendly future. When you choose an off-grid photovoltaic system, you not only choose an efficient energy solution, but also choose a more environmentally friendly and self-sufficient lifestyle
Therefore, being meticulous in the installation process is not only a respect for technology, but also an investment in the future. In this era full of changes, having a stable and efficient off-grid system will make your family or enterprise not only enjoy energy freedom, but also walk in the forefront of environmental protection and energy saving. Through today’s efforts, you will reap a smarter and greener future tomorrow！