Functions
• Differential protection
- High impedance differential protection(PDIF, 87X)
• Line differential protection
- Line differential protection, 3 CT sets, 2-3 line ends (PDIF, 87L)
- Line differential protection, 6 CT sets, 3-5 line ends (PDIF, 87L)
- Line differential protection 3 CT sets, with in-zone transformers, 2-3 line ends (PDIF, 87LT)
- Line differential protection 6 CT sets, with in-zone transformers, 3-5 line ends (PDIF, 87LT)
• Distance protection
- Distance protection zones (PDIS, 21)
- Phase selection with load encroachment (PDIS, 21)
- Power swing detection (RPSB, 78)
- Automatic switch onto fault logic (PSOF)
• Current protection
- Instantaneous phase overcurrent protection (PIOC, 50)
- Four step phase overcurrent protection (POCM, 51/67)
- Instantaneous residual overcurrent protection (PIOC, 50N)
- Four step residual overcurrent protection (PEFM, 51N/67N)
- Thermal overload protection, one time constant (PTTR, 26)
- Breaker failure protection (RBRF, 50BF)
- Stub protection (PTOC, 50STB)
- Pole discordance protection (RPLD, 52PD)
• Voltage protection
- Two step undervoltage protection (PUVM, 27)
- Two step overvoltage protection (POVM, 59)
- Two step residual overvoltage protection (POVM, 59N)
- Overexcitation protection (PVPH, 24)
• Frequency protection
- Underfrequency protection (PTUF, 81)
- Overfrequency protection (PTOF, 81)
- Rate-of-change frequency protection (PFRC, 81)
• Multipurpose protection
- General current and voltage protection (GAPC)
• Secondary system supervision
- Current circuit supervision (RDIF)
- Fuse failure supervision (RFUF)
• Control
- Synchrocheck and energizing check (RSYN, 25)
- Autorecloser (RREC, 79)
- Apparatus control for single bay, max 8 app.(1CB) incl. Interlocking (APC8)
- Apparatus control for single bay, max 15 app.(2CBs) incl. Interlocking (APC15)
• Scheme communication
- Scheme communication logic for distance protection (PSCH, 85)
- Current reversal and weak-end infeed logic for distance protection (PSCH, 85)
- Local acceleration logic (PLAL)
- Scheme communication logic for residual overcurrent protection (PSCH, 85)
- Current reversal and weak-end infeed logic for residual overcurrent protection (PSCH, 85)
• Logic
- Tripping logic (PTRC, 94)
- Trip matrix logic
- Configurable logic blocks
- Fixed signal function block
• Monitoring
- Measurements (MMXU)
- Supervision of mA input signals (MVGGIO)
- Event counter (GGIO)
- Event function
- Disturbance report (RBDR)
- Fault locator (RFLO)
• Metering
- Pulse counter logic (GGIO)
• Station communication
- IEC61850-8-1 communication
- LON communication protocol
- SPA communication protocol
- IEC 60870-5-103 communication protocol
- Horizontal communication via GOOSE for interlocking
- Single command, 16 signals
- Multiple Command, 80 blocks with 16 signals each
- Ethernet configuration of links
• Remote communication
- Binary signal transfer
• Basic IED functions
- Self supervision with internal event list
- Time synchronization (TIME)
- Parameter setting groups
- Test mode functionality (TEST)
- Change lock function
- IED identifiers
- Rated system frequency
• Hardware
- Power supply module (PSM)
- Binary input module (BIM)
- Binary output module (BOM)
- Binary in/out module (IOM)
- mA input module (MIM)
- Transformer input module, standard compression connection terminals (TRM)
- Optical ethernet module (OEM)
- SPA/LON/IEC module (SLM)
- Line data communication module (LDCM)
- GPS time synchronization module (GSM)
• Accessories
- GPS antenna, including mounting kit
- External interface converter from C37.94 to G703
- High impedance resistor unit
- Test switch module RTXP24
- On/off switch
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