NR Electric Co., Ltd.
NR Electric Co., Ltd.
Digital Substation
PCS-221
PCS-221 Merging Unit Merging units are used to sample AC analog values and transmit the sampled values(SV) to protection devices, bay control units(BCU) or electric meters through optical communication channels based on the IEC61850-9-2 protocol or IEC60044-8 protocol.
Merging Unit
PCS-222 Circuit Breaker Controller The PCS-222 is an intelligent terminal used to control primary switching devices, whichinclude the circuit breaker and main transformer, in the digital substation at all voltage levels.
Merging units are used to sample AC analog values and transmit the sampled values(SV) to protection devices, bay control units(BCU) or electric meters through optical communication channels based on the IEC61850-9-2 protocol or IEC60044-8 protocol.
PCS-223 CB Online Monitoring Unit The PCS-223 circuit breaker(CB) online monitoring unit provides the online monitoring of circuit breaker and switches in the digital substations at all voltage levels.
PCS-9250-EGI/EAI Electronic CT/VT To keep pace with the increasing demands of transmission capacity and rising system voltage, NR Electric has pursued advanced research on electronic CTs and VTs to ensure maximum reliability and availability in the applications of metering and protection relays.
Functions •
IEC61850-9-2 sampled value transmission
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IEC60044-8 sampled value transmission
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GOOSE transmission/reception
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GMRP function
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Voltage and current synchronization
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IEC60044-8 voltage sampled value reception from a busbar MU
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Voltage transfer
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Data synchronization
Features •
Ahigh performance multi-DSP hardware structure is adopted in this device.Therefore, the device can process real-time data with high speed and high precision.
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Modularized hardware design allows for easy upgrade or maintanaice of the device by qualified service technicians.
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Various function optional modules satisfy various scenarios according to the different requirements of each user.
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The adoption of high precision 16 bits A/D converter ensureshigh precision measurement calculations. Two A/D converters are intergrated in a single AC sample channel, and the sampling rate is 80 samples per fundament wave cycle. The real-time data calculation can be completedwithin one sampling period.
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Afriendly and convenient human machine interface (HMI) display is provided for the user to view the status of thedevice.
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Various methods of GPS time synchronization are contained in this device.These includeIEEE1588, pulse per second (PPS) and IRIG-B synchronization.
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This device can support several communication protocols, which are adopted in the modern digital substation. For example, IEC61850-9-2LE and IEC61850-8 (GOOSE).
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Perfect event recording function: 128 latest binary bit change reports, and128 latest device self supervision
PCS-9250-OAI Optical CT The PCS-9250-OAI Fiber Optic CT (FOCT) is a passive optical current transducer; it uses light to accurately measure currents on high voltage systems. The sensor at the high voltage side of the passive optical CT is composed of insulating materials such as optical fiber, glass, etc.
reports.
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Read more on the web www.nrelect.com
Read more on the web www.nrelect.com
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