Solar system operation process
After installing the solar panel and electrical cables to connect the panels to the inverter, electrical cabinet, and DC Combiner Box, proceed to start the solar energy system as follows:
Step 1: Turn on the master circuit board of the electrical cabinet and the DC Combiner Box connector
Step 2: Turn on the CB of the inverter.
Step 3: Wait for the inverter to start up and wait until the display shows “DC off”, then turn the inverter ON switch.
Step 4: Wait for about 5 minutes to 10 minutes, then the inverter works, the green light flashes and on the led screen the words "On grid" are displayed, which means the solar system has started to work.
Normally, the process of operating solar power during operation is done as follows:
– Daily/weekly/monthly: Currently, all solar power systems are equipped with data synchronization devices via wifi, which can be monitored directly via the application on the phone. If the power output is generated regularly, it means the system is operating stably. Normally, in less than 3 months, there is no need to do any work to maintain the solar power system. The systems installed in the past, the old version has not been synchronized, can be viewed directly on the screen of the grid-tied inverter or electricity meter installed with the system. It doesn't have to be daily, but we recommend checking at least once a month how much power your system is producing.
Check solar battery system
– Quarterly (every three months): Quarterly, it is advisable to check if the solar panel rig is too dusty. The high-quality solar panel itself also has a dust-proof coating on the surface, plus the installation of the panel has an angle of inclination to reduce dust, so dust does not normally stick to the surface of the battery. The rains will also make these layers of dust be washed away immediately, but there are dusty areas such as near thermal power plants, near concrete, ceramic, and cement factories, which will also cause dust to accumulate on the surface. The surface of the panel is more than normal, when it rains, it is easy to cause water particles to trap dust on the battery surface, then it is also advisable to clean the battery rig with soft cloth or brush tools. The low roof position can be shaded by trees after growing large, causing reduced efficiency, on the other hand, falling leaves on the battery surface also significantly affect power output. Therefore, cleaning on the roof, on the battery is essential to do regularly.
Clean the battery
– Annually: If the location of the battery is easy to observe and manipulate, we should annually do the following tasks:
+ Solar panels need to be checked that there is not too much dust, surrounding trees or leaves, garbage lying on the surface of the panel. At least twice a year, it is recommended to check to clean the panel to keep the surface of the battery clean.
+ Visually check that the battery rack system, battery frame, wires, terminal boxes, electrical cabinets are still in good condition.
+ Check the parameters of the grid-tied inverter, the grid-tied inverter must be placed in a well-ventilated location with good heat dissipation. Do not place heat-generating devices near the inverter, it will reduce its performance as well as the whole system.
Check the inverter system
– Up to 5 years: overall inspection of the entire system, from the positions of the battery bracket (no rust), to the wiring system (no aging, peeling, outdoor installation must have a protective tube). wire protection), the battery rig is clean, the equipment in the electrical cabinet is still in good working order, without being moved, or leaking, etc. Check the annual power output, you can use the electricity meter to check the operation of the electrical system. fuses, CBs, connectors… in the electrical cabinet. If the power output is stable, most electrical cabinets and equipment are operating in good condition.
Process of maintaining and maintaining solar energy system
Periodic maintenance, system maintenance is 03 months/time, 04 times/year.
[row] [col span__sm=”12″] [ux_slider bullets=”false” bullet_style=”dashes-spaced” timer=”600″] [ux_image id=”5941″] [ux_image id=”5918″ height=”56.25%”] [ux_image id=”5647″ height=”56.25%”] [/ux_slider] [/col] [/row]1. Performance test, solar panel cleaning
- The time from 6 to 7 am is the most appropriate time to clean the battery.
- Disconnect the panels from the inverter by turning off the DC switch in the electrical junction box of the system.
- Get some distilled water and mix it with a little soap or cleaning solution for effective cleaning.
- Look for a soft brush or sponge to start cleaning the panels with an aqueous solution.
- After cleaning all with soap solution, rinse with water with low pressure hose.
- Let the panels dry for about 30-45 minutes and then turn on the DC switch again.
2. Clean the inverter
Prepare a full set of the following tools: The first is a handheld vacuum cleaner (specialized for vacuuming on cars), the second is some brush and soft bristle brush to polish some position on the inverter. In addition, it is necessary to equip more cloth from old clothes to make rags for the inverter.
The routine cleaning and maintenance procedures for the inverter are as follows:
- Check the wire connections: DC + and DC -, network wire, ground wire, 3 phase, ...
- Use a rag to clean the dust on the outside of the inverter. Then use a strong air gun to spray all over the inverter to make the dust fly. Then use a vacuum cleaner to remove the dust.
- Repeat the operation of air spraying and vacuuming several times until the dust feels clean.
- For some terminals, it is necessary to use a soft bristle brush to clean.
- Note to clean the inverter's cooling fan because this is the location for air circulation, so it often sticks to a lot of dirt.
3. Clean and check AC . electrical cabinet
Prepare tools: Personal box with full tools: Gloves, Electric pliers, Normal pliers, Ammeter, Flashlight, Small brush, Vacuum cleaner.
Steps for cleaning AC electrical cabinets:
- Step 1: To ensure safety, first turn off all Aptomat. Then use an electric pen to carefully check that the power is turned off, or if there is a leak somewhere. Avoid unnecessary dangers or problems (just turn off the system before 7am or after 6pm so as not to affect the system's solar power output).
- Step 2: Using a small brush, clean dirt at all positions in the electrical cabinet. Then, check and tighten the connectors, wire ends, and load pressure system with a screwdriver. The wiring terminals must be regularly checked to avoid heat generation and unsafety for the electrical system.
- Step 3: Check and bundle the wiring. Use a vacuum cleaner to clean the nooks and crannies of the cabinet. Periodic cleaning is very necessary, so the electrical cabinet will always be in the best operating state.
- Step 4: Check the overall, open the aptomat to the original state. Note: Open the total aptomat first and then open the load aptomat later.
- Step 5: Use a clamp meter, an electric tester to check the connectors, the device has returned to its original state or not
- Step 6: Clean the shell. hinged door. Make sure the body, hinges, and doors are always well insulated and clean.
4. Clean and test the input combiner DC Combiner Box
Steps to check and clean the DC Combiner Box input combiner:
- Step 1: Set the meter at DC 1000V to test each pair of DC + and DC -, each pair of such DC will measure 800V to 900V.
- Step 2: Next, check to see if the DC wire pairs are touched or leak anywhere by using a meter to adjust the 1000VDC scale and using the red rod to measure DC + and the black rod to measure with the mass of the electrical cabinet. Then, take the black rod to measure DC - and the red stick to measure the mass of the electrical cabinet. If there is a touch somewhere, there will be a high leakage current.
- Step 3: After checking the DC Combiner Box input combiner, take a paper or dry cloth to clean the cabinet and close the cabinet.
