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GRID TIE SOLAR SYSTEM WITH BACKUP

         This is a smart systemthat was  integrated  from two independent systems by AST company  including:

- Solar On Grid System (GTSI): Produces energy from the sun into electricity 220V AC/50Hz to push into the grid.

- Solar Off Grid System (ISCB): Storage energy from the sun to battery and converted into 220VAC/50Hz for priority load line when  grid outage. Also the ISCB is also very convenient for use where there is no electricity grid as islands and mountains.

 

 

 Description of activities - SW switch in OB position:

When the grid on: GTSI’s  ready working. The ISCB’s in Bypass mode: (Connect the priority load line directly to the electricity grid.)

   - Daily battery always is being charged from the sun through the ISCB with priority . In this time of  GTSI not work.

   - When the battery is fully charged the ISCB stop charging and GTSI will automatically switch to work mode: Converts DC power from Sola panel into AC 220V (voltage, frequency, phase polymerization) to mix with grid.

   From the diagram we found that electricity purchased from the grid is the number on W0 meter. The production of electricity from the sun is the value on W1. Power consumption of household consumption on both transmission lines are the numbers on the W2 meter. And     W2=W0+W1  =>    Electricity purchased from the grid W0  =  W2 - W1 will always be less than the power consumption value W2. This is the effect of your system.

   When the power off: The GTSI will stop working after 0.1 seconds to ensure the safety of the grid system. ISCB will automatically switch from bypass to inverter DC backup taken from the Battery and Solar power into 220V AC supply for priority load.

   SW switch in OA position: Used when the electricity company agreed to buy electricity from householdswith grid tie solar power systems.

 Related iterms:

-       Off Grid solar power system(independent of the grid)

-       On grid solar power system - Grid Tie Solar Inverter. 

-       Grid Tie Solar Inverter  with backup. 

-       Solar home system. 

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   VIET LINH MANUFACTURING AND TRADING ELECTRIC-ELECTRONIC LIMITED COMPANY
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 83/ 24 Bach Dang Str., Ward 2, Tan Binh Dist., HCM City, Vietnam (near Tan Son Nhat airport)
(84-8)38955408
(84-8)38941670
 vietlinh@ast-vn.com
 www.ast-vn.com