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  • Yakub Ansari

Delta Zero export device | Delta export limiter | 2021

Updated: Oct 9, 2021


Delta Grid Tie PV Inverters


Delta Energy Systems is Germany based, multi-billion dollar company, founded in 1971 and been producing solar inverters since 1999. Since 2003 Delta Energy Systems is part of Delta Group.


Delta has a range of transformerless grid-tied solar inverters series, RPI from 3kW to 125kW and a DeiCEN series 1 MW to 3MW.


The absence of a transformer leads to higher efficiency, reductions in weight and size and a lower cost due to the reduced number of components.


With Design Ambient temperature of -25 Degree C to + 60 Degree C and Ingress protection class of IP65. Delta makes, Solar string inverters are ideal for installation in harsh conditions.


The cabinet is IP65 rated for outdoor use which means the electronic components are protected against dust and water ingress which reduces the likelihood of damage to components. This is in line with industry standards.




Delta Zero Export Device


On-gird solar power (PV) plant generates excess power when the connected load is lesser than the power generated by the solar power plant (Power generation > Power required).


This excess power is synchronized with grid power hence it can revere the power flow.


In simple words, power will flow from the PV plant owner’s home to the connected grid [when Solar power generation > Power required by connected load].