Flexible Power Transmission

HVDC Transmission Protection & Control

Modern HVDC power transmission asks for high efficient solution featuring true reliability and flexibility.

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  • PCS-9250 DC Electronic CT/VT

    PCS-9250 DC Electronic CT/VT

    NR provides DC ECT, EVT and filter imbalance ECT for both classic and VSC-based HVDC transmission projects. The DC electronic transformers have advantages of small size, light weight, no ferromagnetic resonance problem......

  • PCS-9550 HVDC Control & Protection System

    PCS-9550 HVDC Control & Protection System

    Line Commutated HVDC (LCC) transmission technology is used for long distance bulk power transmission through overhead lines or submarine cables. It is also used in asynchronous interconnection to AC networks.

HVDC

HVDC transmission systems use direct current instead of alternating current for the transmission of electricity.

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HVDC Flexible

HVDC Flexible is a new HVDC transmission technology, based on a voltage source converter (VSC). 

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Flexible DC Transmission

VSC-based HVDC transmission is a newly developed technology based on the control of voltage source converter.

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  • PCS-9520 VSC-HVDC Valve

    PCS-9520 VSC-HVDC Valve

    The converter valve is the core of PCS-9520 VSC-HVDC transmission system. The capacitor and switching devices of converter valve can form a sub-module. Each phase bridge is composed of several sub-modules and a series-connected reactor.

  • PCS-9250 DC Electronic CT/VT

    PCS-9250 DC Electronic CT/VT

    NR provides DC ECT, EVT and filter imbalance ECT for both classic and VSC-based HVDC transmission projects. The DC electronic transformers have advantages of small size, light weight, no ferromagnetic resonance problem......

  • PCS-9550 HVDC Control & Protection System

    PCS-9550 HVDC Control & Protection System

    The control and protection system is the key to the overall performance of HVDC transmission system. It guarantees safe and steady system operation, provides flexible operating modes and accurate control effects, helps to clear fault and assists in...

FACT and Distribution

  • PCS-9580 Static Var Compensator

    PCS-9580 Static Var Compensator

    Static VAr compensator (SVC) system is an effective way to achieve the rapid adjustment of grid reactive power and improve power quality. It is widely used in power transmission, HVDC converter station, industrial field and wind farm......

  • PCS-9583 Static Synchronous Compensator

    PCS-9583 Static Synchronous Compensator

    Modern society consistently relies on electrical power, requiring higher demands of power stability and power quality. High-power rapid impact loads, rapid growth of asymmetrical impact loads, e.g. electrified railway......

  • PCS-9570 Fixed Series Compensator (FSC)

    PCS-9570 Fixed Series Compensator (FSC)

    The fixed series compensator(FSC) can improve the transmission capacity of the transmission network and achieve optimal power flow to optimize dispatching, reduce losses and make full use of power supply at the minimum generation cost......

  • PCS-9590/9591 DC De-Icer

    PCS-9590/9591 DC De-Icer

    Ice coating caused by extremely cold climate can damage transmission lines and lead to the power outage in partial or entire network. To guarantee the safe operation of power system in severe weather in winter......

  • NES5600 Static VAR Compensator System

    NES5600 Static VAR Compensator System

    NES5600 is a type of Static VAR Compensator based on thyristor-controlled reactor. As a FACTs equipment, NES5600 SVC can continuously provide the reactive power control needed to manage dynamic voltage swings under various system conditions. The SVC...

Other Power Electronics

  • PCS-9563 PV Grid-Connection Inverter

    PCS-9563 PV Grid-Connection Inverter

    PV grid-connection system refers to the system that converts solar power to electric power and transmits to the grid. It consists of solar array module, PV convergent cubicle, PV grid-connection inverter, and grid-connection system......

  • PCS-9561 Doubly Fed Converter System

    PCS-9561 Doubly Fed Converter System

    With the rapid development of computer science and control technologies, the wind power technology has been developing fast accordingly. The control mode has evolved from simplex constant pitch stall control to full blade variable pitch and variable...

  • PCS-9575 Static Frequency Converter (SFC)

    PCS-9575 Static Frequency Converter (SFC)

    The static frequency converter (SFC) is a speed governing system for large capacity synchronous motor starting or its speed control in pumped storage power plant, gas turbine power plant and industrial enterprise......