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Acronym Key
Acronym Meaning Acronym Meaning
AHJ Authority having jurisdiction NFPA National Fire Protection Association
CSC Cell supervision circuits OCPD Overcurrent protection device
DSP Digital signal processor P&O Perturb and observe
EGC Equipment grounding conductor PCB Printed circuit board
ESS Energy storage system PF Power factor
GFCI Ground-fault circuit interrupter PLC Powerline communication
HVRT High voltage ride through POI Point of interconnection
IEEE Institute of Electrical and Electronics Engineers PV Photovoltaic
IMM Insulation measurement module PVRSS PV rapid shutdown system
LVRT Low voltage ride through RSD Rapid shutdown
MBMU Master battery management unit SBMU String-level battery management unit
MLPE Module-level power electronics SCADA Supervisory control and data acquisition
MSD Mechanical safety disconnect SPD Surge protective device
MPPT Maximum power point tracker UPS Uninterruptible power supply
NEC National Electric Code
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