This F-RLY feeder protection relay for recloser has two types: F-RLY100 feeder protection relay and F-RLY200 feeder protection relay. It is suitable for outdoor switchgear up to 10kv -40.5kV, including vacuum circuit breakers, oil circuit breakers, gas circuit breakers, and reclosers. Both of them have the following common features.
Features of feeder protection relay
Multiple protection
Multiple protection for overhead lines includes current protection voltage protection Frequency protection, and other protection such as reclosing function. It also supports the definite time (DT) curve, inverse definite minimum time (IDMT) curves, and user-defined curves.
Terminal and Port Modular Design
The modular interface of supply, control, measurement, and communication are independent so you can easily and costly extend and replace cards at sites.
Fault Records & Waveform Capture Available
According to the recording10 fault records with a maximum of 10 seconds at a storage rate of 128, you can comprehensively analyze the
reason for the fault.
Power Quality Analysis Available
It provides real-time power quality analysis, including detailed harmonic measurements for up to 16 analog quantities.
Load Profile Analysis
It Offers load profile analysis with up to 10 analog quantities, providing detailed historical data for up to 30 days.
Rapid self-healing
A variety of intelligent distributed network solutions can be realized without relying on the master system, which applies to various network topologies, and enables the grid to self-heal in milliseconds, meeting customers’ demand for a grid with higher stability and reliability.
Technical Specification of feeder protection relay
| Parameter/Type | F-RLY100 | F-RLY200 |
| Power Supply | 20Vdc~29Vdc | 18Vdc~29Vdc |
| Voltage Input | 100Vdc~240Vdc | Secondary: 0~8V (CVD or RV |
| Current Input | 1A/5A | Secondary: 1A/5A (Current Transformer |
| Analog Input | 3I+Io+6Us | 2 channels 4-20mA |
| Binary Input | 8 channels | 10 channels signal input. Max is 20 (Option) |
| Binary Output | 4 channels | 4 channels signal output. Max is 8 (Option) |
| Communication Port | 1*RS232/RS485, 1*RS232, 1*RJ45 | |
| Communication Protocol | 101/104/DNP3.0/Modbus | IEC 61850 MMS, IEC 60870-5-101/104, DNP3.0, MODBUS |
| LCD Size | Large LCD (10 lines * 20 characters) 16 Programmable LEDs 10 Programmable buttons | |
| IP Class | Front Panel: IP54; Rear Panel: IP20 | |
| Measurement | Three-phase current, residual current, six-phase voltage, residual voltage, active power, reactive power, apparent power, active energy, reactive energy, apparent energy, power factor, frequency, current sequence, voltage sequence, current and voltage total harmonic distortion, and demand time. | |
| Protection | Over-current protection and earth-fault protection Over-voltage protection and under-voltage protection Over-frequency protection and under-frequency protection Other protection: reclosing function, Synchronization Check function, cold load pickup function, hot line tag. |
Over-current protection and earth-fault protection Over-voltage protection and under-voltage protection Over-frequency protection and under-frequency protection Other protection: reclosing function, Synchronization Check function, cold load pickup function, hot line tag, circuit breaker failuer protection, power direction protection, fault locator function, external trip, zone sequence coordination, etc. |
Application of feeder protection relay
Take F-RLY200 feeder protection relay as an example, solutions are categorized as local or centralized. Local solutions operate independently, performing various functions within the FTU. Centralized solutions require communication and SCADA systems for remote control and monitoring.
