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-9561 Wind Energy Converter System PCS-9700 Renewable Energy SCADA PCS-9726 Generation Management Unit PCS-9700F Power Forecast System PCS-9700R AGC/AVC PCS-9563 PV Grid-Connected Inverter
Battery Energy Storage 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 April 12, 2022, NR PCS-9531 electronic load bank system was successfully put into operation at Ferronickel project in Indonesia. The successful operation of the system will improve the primary frequency modulation capacity of enterprise power grid, enhance the power grid damping, and effectively improve the static and dynamic stability of the grid. It has great application value for ensuring the safe, reliable and stable operation of islanding power network.
Indonesia is known as the "country of thousands of islands". Each island is rich in mineral resources. Special geographical structure and huge demand for electric energy from industrial load, resulted in its unique cluster structure of islanding power grid system. The power grid stability for this kind of system is always a big challenge.
The power grid in this project is an islanding power system composed of generators and several submerged arc furnace loads.
Compared with the large power grid system, the isolated islanding power grid lacks frequency and voltage regulation means. It has small short-circuit capacity, and the power grid structure is fragile. At the same time, the load of industrial submerged arc furnace fluctuates greatly, which will have a great impact on the power grid during operation.
Electronic load bank is a flexible electric load power balance system based on power electronic technology. It has accurate control of kW power, rapid response performance of milliseconds and flexible control strategy.
In this project, NR supplies a complete set of 35kV / 30MW electronic load bank system to carry out dynamic power tracking compensation, accurate load control and passive frequency auxiliary control by tracking the power change of generator and submerged arc furnace load in real time.
Through the "active + passive" control strategy and cooperating with the generator & network coordination system, the power distribution and control of generators and loads are optimized to effectively ensure the stable and reliable operation of industrial isolated network system.
The project adopts the containerized prefabricated cabin structure for the first time, with compact design and all outdoor layout, which greatly reduces the workload of on-site installation and commissioning. A lot of manpower and material resources are saved. The application wins highly praised by users.
NR can provide a package of solutions to improve and optimize the enterprise power grid, which included electronic load bank, energy storage system, generator & network coordination, DCS, low-frequency load shedding and stability control system, so as to ensure the safe production, high efficiency and energy saving of industrial users.
NR will continue to practice the corporate purpose of "creating value and serving the society", and contribute more to the development of reliable green power system.