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General| Type | Feeder Protection Relay |
|---|---|
| Nominal Frequency | 50/60 Hz |
| Rated Current | 1 A / 5 A |
| Protection Functions | Overcurrent, Earth Fault, Under/Over Voltage |
| Communication Protocols | IEC 61850, Modbus, DNP3, IEC 60870-5-103 |
| Mounting | Flush mounting |
| Ingress Protection | IP54 (front), IP20 |
| Operating Temperature Range | -25 to +55 °C |
The technical manual contains application and functionality descriptions and lists function blocks, logic diagrams, input and output signals, setting parameters and technical data sorted per function.
615 series is a product family of IEDs designed for protection, control, measurement and supervision of utility substations and industrial switchgear and equipment.
Describes the Local Human-Machine Interface (LHMI) used for setting, monitoring, and controlling the IED.
Details the communication protocols supported by the IED, including IEC 61850, IEC 60870-5-103, and Modbus.
Covers analog input settings for phase currents, residual current, and phase voltages.
Describes the IED's self-supervision system for software and electronics, covering internal faults and warnings.
Describes the IED's internal real-time clock synchronization methods including SNTP, IRIG-B, Modbus, and IEC 60870-5-103.
Details the IED's capacity to store and analyze fault records including fundamental or RMS current values.
Covers binary input settings such as filter time, inversion, and oscillation suppression.
Details the binary outputs used for tripping, control actions, and connecting to external annunciation equipment.
Explains the functionality, operation principle, input signal type selection, output value format, and linear scaling.
Covers three-phase non-directional overcurrent protection (PHxPTOC) and directional overcurrent protection (DPHxPDOC).
Details non-directional (EFxPTOC), directional (DEFxPDEF), transient/intermittent (INTRPTEF), and admittance-based (EFPADM) earth-fault protection.
Covers line differential protection (LNPLDF) and transformer differential protection (TR2PTDF), including measurements and CT connections.
Covers protection against excessive starting time and locked rotor conditions, including thermal stress calculation.
Provides three-phase conditional or unconditional re-trip and backup trip functions for circuit breaker failure.
Supervises the control circuit of the circuit breaker, detecting invalidity and failure.
Monitors circuit breaker parameters like number of operations, energy calculation, and travel times.
Covers three-phase current, voltage, residual current/voltage, sequence components, frequency, and power/energy measurements.
Describes functions for circuit breaker, disconnector, and earthing switch control and status indication.
Checks synchronization and energizing conditions across power system parts, permitting circuit breaker closing.
Provides programmable auto-reclose shots to clear transient faults automatically.
Covers IDMT curves for overcurrent protection, including standard and user-programmable inverse-time characteristics.
Details IDMT curves for overvoltage and undervoltage protection.
Details current transformer requirements for non-directional overcurrent protection, including accuracy class and accuracy limit factor.
Details communication connections including Ethernet, serial, and fiber-optic options.
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