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-9567TU-1000/1250/1375/1575/1750 1500V Series Outdoor Power Conversion System PCS-8811CB Centralized energy storage system PCS-8812PB Liquid cooled energy storage cabinet PCS-8813CPB High voltage directly connected energy storage system PCS-9567A Power Conversion System PCS-9567C BESS Control Unit PCS-9700 Energy Storage System
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
On May 10, 2024, the world's first set of Static Self-Synchronous Compensator (SSC: Static Self- Synchronous Compensator, hereinafter referred to as “SSC”), supplied by NR Electric, successfully completed the artificial short-circuit test at the site of Huaneng Bamian wind farm project in Jilin.
SSC is a new type of grid voltage and frequency support equipment based on grid-forming control technology, composed of supercapacitor and high-voltage power electronic converter, which has the advantages of high inertia, high damping, strong support, low loss and easy operation and maintenance. SSC has the characteristics of self-synchronous voltage source, which can build up the potential necessary for the stable operation of the power system in the stages before, during and after the disturbance, and play the role of “pillar” for the stability of the power grid. By providing inertia and voltage support to the system, SSC can improve the system short-circuit capacity and short-circuit ratio, and can effectively solve the renewable energy dominated power system's transient low-voltage and over-voltage, wide-frequency oscillations and other problems.
This 35kV/50MVar SSC project is designed to have a usable energy of more than 200MJ and a short-term overload capacity of 3 times the rated current. The SSC shows excellent performance in this test, responding to the phase and amplitude changes at the connected point without delay, instantaneously outputting a large amount of active and reactive power to support the frequency and voltage of the system. It realized three times the current output during the fault period, which meets the expected requirements. This fault test for SSC shows similar reactive power response characteristics, inertia response characteristics and dynamic damping characteristics as synchronous condenser.
NR Electric has been committed to solving power grid problems through technological innovation. NR is the first in the industry to put forward and carry out the grid-forming technology research and application, has developed a series of products and solutions such as grid-forming energy storage, grid-forming VSC-HVDC, grid-forming STATCOM and Static Self-Synchronous Compensator , keeping grid resilient and reliable for renewable energy dominated electrical power system.