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- Digital Automation Systems
- Real-time applications
- RTU/SCADA Solutions for powerplants & industrial consumers
- Hardware-based cyber protection - up to Common Criteria EAL 7+
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Protection Relays
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NR PCS-902 Line Distance Relay
The NR PCS-902 relay provides numerical line protection with pilot distance protection, stepped distance protection, current protection, voltage protection, single and/or threepole tripping and auto-reclosing functions. As a full-schemedevice, it integrates frequency protection, breaker failure protection and stub protection.
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NR PCS-9611 Directional Overcurrent Protection
The NR PCS-9611 relay is a protection, control and monitoring unit for various applications (such as overhead line, underground cable and transformer etc.) on solidly grounded, impedance grounded, Peterson coil grounded and ungrounded system. The PCS-9611 features high performance functional library, programmable logic, configurable I/O and integrated frequency-tracking. The PCS-9611 is designed based on advanced multiprocessor platform, fully complying with IEC 61850 station bus; process bus, supporting IEC 61850-8-1 MMS,GOOSE and IEC 61850-9-2 Sampling Value.
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NR PCS-931 Line Differential Relay
The NR RCS-931 relay is an advanced current differential protection with stepped distance elements and overcurrent elements intended for main and backup protection for transmission lines with single-pole trip, three-pole trip and auto-reclosing schemes. Phase segregated current differential, zero sequence current differential and DPFC differential are combined into the unique current differential element. It also integrates voltage protection, frequency protection, breaker failure protection and stub protection.
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NR PCS-978 Transformer Protection
The NR PCS-978 numerical protection system can provide full-scheme protection and control in one rack for various transformer applications, including two-winding transformers,three-winding transformers and auto-transformers. It also can be used to protect shunt reactors. Up to 36 analog input channels including current and voltage inputs are provided. The extensive functional library, programmable logic and configurable I/O are integrated to meet flexible applications. The unique current differential protection includes the unrestraint current differential element, percentage restraint current differential element and DPFC differential element.
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Protection Relays