Technology of Electrical Automatic

F-RLY100 Feeder Terminal Unit

F-RLY100 Feeder Terminal Unit

The F-RLY100 Feeder Terminal Unit is a fully digitalized, microprocessor-based control protection relay designed to provide protective coordination and fault clearance of distribution systems for continuous, high-quality electric service.

The F-RLY100 provides protection, measurements, status monitoring, control, communication, data handling, and distribution automation. It contains DT, IDMT, and user-defined curves according to IEC and ANSI standards to provide fully protective coordination for continuous best-quality electric distribution.

Category:

The F-RLY100 Feeder Terminal Unit is a fully digitalized, microprocessor-based control protection relay designed to provide protective coordination and fault clearance of distribution systems for continuous, high-quality electric service.

The F-RLY100 provides protection, measurements, status monitoring, control, communication, data handling, and distribution automation. It contains DT, IDMT, and user-defined curves according to IEC and ANSI standards to provide fully protective coordination for continuous best-quality electric distribution.

Category:

Feature

  • All parameter measurement;
  • Reclosing control function;
  • Synchronization check function
  • Measurement high alarm and warn;
  • System event recorder – last 10,000 events;
  • Loop automation/auto-changeover scheme;
  • RJ45 Ethernet port, RS232 & RS485/232 serial port optional.

Specification

Parameter F-RLY100
Power supply 24 V DC (20 … 29 V DC)
Max power consumption <10 W
Frequency 50/60 Hz
Analog input 4I+6Us+2Uo
Current transformer ratio 1/5 A
Voltage sensor 0~8 V rms (optimized with secondary rated phase voltage 4 Vrms)
Binary input/output 8 BI/4BO
Binary input rated voltage 24 V DC
Binary input threshold voltage >18 V DC
Binary input reaction time <20 ms
Binary output rated voltage 250 V AC
RTD/mA inputs 4-20 mA
Debugging port on front panel RJ45 Ethernet port
Communication serial port on rear panel RS232 & RS232/485 serial port
Communication ethernet port on rear panel RJ45 Ethernet port
Communication protocol IEC101/104, DNP3.0, MODBUS
Operation temperature range -25°C … +70°C
Storage temperature range -40°C … +85°C
Degree of protection Front panel: IP54, Rear panel: IP20
Dimension 253*172*167 mm

Application

  • High voltage overhead lines;
  • Electric utility and grid infrastructure;
  • Telecommunications infrastructure;
  • Renewable energy generation and distribution;
  • Public transportation and electrified rail system.

Protection functions

Structure Diagram

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