Protection&Control Transmission Line Protection Busbar Protection Transformer Protection Circuit Breaker Protection Generator Protection Feeder Protection Capacitor Protection Motor Protection Transfer & Synchronization Arc Protection
Digital Substation PCS-221S Merging Unit PCS-221 Merging Unit PCS-222 Circuit Breaker Controller PCS-9250 AC Electronic CT/VT
Automation PCS-9700 Automation System PCS-9700 HMI Software PCS-9705 Bay Control Unit PCS-9705S Bay Control Unit PCS-9799 Station Manager PCS-9799S Station Manager PCS-9710 Remote Terminal Unit PCS-9710S Remote Terminal Unit PCS-9794 Protocol Converter PCS-9785 Satellite-Synchronized Clock PCS-9882 Ethernet Switch PCS-9882Rx DIN Rail Managed Ethernet Switch PCS-9882XD Managed Ethernet Switch PCS-9884 Managed Ethernet Switch Supporting HSR and PRP MUX-2M/64 Communication Interface
Phasor Measurement PCS-997S Fault Line Locator PCS-996S-G Phasor Data Concentrator PCS-996 Phasor Measurement Unit
Disturbance Fault Recording PCS-996RC Disturbance Fault Recorder PCS-996R Disturbance Fault Recorder PCS-986 Disturbance Fault Recorder PCS-9013 DFR Management System
Stability Control System PCS-992 Power Stability Control System PCS-993 Out-of-Step Controller PCS-994 Frequency & Voltage Controller PCS-994S Frequency and Voltage Controller
Power Grid Monitoring and Control PCS-9000 Energy Management System PCS-9000 Distribution Management System
Configuration Tool PCS-Torch MOT Tool PCS-Studio Configuration Tool PCS-Explorer IED Configuration & Debugging Tool PCS-SCD Configuration Tool PCS-COMM Configuration & Debugging Tool
Accessories MD1501 Series Auxiliary Relays MD1701 Series Test Blocks MD1701S Test Block
FACTS PCS-9580 Static Var Compensator PCS-9583 Static Synchronous Compensator PCS-9570 Series Compensation PCS-9590 DC De-Icer PCS-9578 Controllable Shunt Reactor PCS-8200 Unified Power Flow Controller PCS-9571 Fault Current Limiter PCS-9564A Dynamic Voltage Restorer PCS-9569 Shore Power System
HVDC PCS-8600 UHVDC Converter Valve System PCS-9550 LCC-HVDC Control and Protection System PCS-8100 VSC-HVDC IGBT Valve PCS-9520 VSC-HVDC Control and Protection System PCS-9510 Cooling System PCS-8300 High-voltage DC Circuit Breaker PCS-9250 DC Electronic CT/VT
PV & Wind Power Grid-Connection PCS-9700 Renewable Energy SCADA PCS-9726 Generation Management Unit PCS-9700F Power Forecast System PCS-9700R AGC/AVC
Battery Energy Storage System PCS-9567MV-10000 Medium Voltage Skid PCS-9567MV-7000 Medium Voltage Skid PCS-9567MV-5000 Medium Voltage Skid PCS-9567MV-3500 Medium Voltage Skid PCS-9567-2500 Twin Power Conversion Systems PCS-9567-1750 Power Conversion System PCS-9567-1750 電力変換システム PCS-9567 Power Conversion System Vulnerability Disclosure Policy PCS-9567 パワーコンディショナー脆弱性開示ポリシー
Microgrid PCS-9617MG Microgrid Controller
Static Frequency Converter PCS-9575 Static Frequency Converter
Protection,Automation&Control DMS EMS Stability Control & WAMS Digital Substation
HVDC & FACTS De-Icing Unified Power Flow Controller (UPFC) Series Compensation Static Synchronous Compensator(STATCOM) Static Var Compensator (SVC) LCC-HVDC Transmission VSC-HVDC Transmission
Renewable & Microgrid Energy Storage System Microgrid PV Generation SFC
Power Generation Pumped Storage Power Plant Nuclear Power Plant Hydro Power Plant Thermal Power Plant
Transmission System AC Transmission LCC-HVDC Transmission VSC-HVDC Transmission
Distribution System Distribution Network
Industrial Consumer Urban Track Traffic Electrified Railway Oil & Petrochemical Metals & Mining
Recently, the 2025 annual meeting of the International Electrotechnical Commission (IEC) SC22F was held in Singapore. The IEC SC22F Committee formally reviewed and approved the new working proposal titled “Grid-forming Energy Storage Systems (GFM ESS) in High-voltage AC Systems,” initiated by NR Electric. It agreed to establish a formal working group, with Dr. Changjiang Zhan of NR Electric serving as the convener of this new working group.
Group Photo of All Delegates of IEC SC22F
At the meeting, Dr. Changjiang Zhan presented the new working proposal, outlining the present work conducted by the existing IEC temporary working groups and CIGRE B4 working groups. He highlighted globally the lack of a unified standard system for grid-forming energy storage systems. National Representatives from China, Sweden, Germany, the United Kingdom, Japan, South Korea, India, Singapore, and other participating countries unanimously approved the proposal.
This working group is the first formal working group under IEC SC22F dedicated to develop the series standards of grid-forming technology. It will concentrate on the grid-forming energy storage systems and equipment in high-voltage AC systems (including grid-forming Battery Energy Storage Systems (BESS), grid-forming Static Synchronous Compensator (STATCOM), Static Synchronous Condenser (SSC)/E-STATCOM, and other future grid-forming equipment or systems).
To address grid stability challenges arising from the large-scale integration of high proportions of renewable energy, NR Electric has successfully developed the NR-ISGrid series of solutions. This solution features the full voltage source characteristics with natural response. It can independently establish power systems collaborating with multiple power sources, supporting the smooth transition from traditional to new power systems. NR Electric has pioneered the industry by successfully developing a series of grid-forming equipment, including grid-forming energy storage, grid-forming STATCOM, static synchronous condensers, and grid-forming VSC HVDC systems. To date, over 120 grid-forming projects have been successfully implemented globally, with a total capacity exceeding 14 GW.