Inverters, Converters, Controllers, and Interconnection System Equipment for Use with Distributed Energy Resources
Also Known As:
UL 1741:2021 is a standard that covers the requirements for inverters, converters, charge controllers, and interconnection system equipment (ISE) used in distributed energy resources (DERs). This standard addresses both stand-alone power systems and interactive power systems connected to an electric power system (EPS).
For interactive equipment, UL 1741:2021 is designed to supplement and work in conjunction with IEEE 1547, which is the standard for interconnecting distributed resources with electric power systems. It also complements IEEE 1547.1, which defines the conformance test procedures for equipment interconnecting distributed resources with electric power systems.
Additionally, the standard encompasses AC modules, which are combinations of PV modules and inverters that provide AC output power for stand-alone use or interaction with the EPS. It also covers power systems that combine alternative energy sources with inverters, converters, charge controllers, and ISEs in specific combinations.
UL 1741:2021 emphasizes the importance of installation compliance with the National Electrical Code (NEC), specifically NFPA 70, ensuring the safe and reliable installation of the covered products.
Furthermore, the standard includes provisions for rapid shutdown equipment and systems, ensuring the safe and efficient shutdown of power systems in case of emergencies or other situations where rapid disconnection is necessary.
| Edition | 3 |
| ICS Codes | 13.020 - Environmental protection |
| Language(s) | English |
| File Size | 5.3 MB |
