RFL GARD 8000® Current Differential Relay System
Brand: RFL Electronics
Catalog ID: RFL_GARD_8000
The GARD 8000 Current Differential Protection System is a proven current-only, high speed line protection system. The GARD 8000 87L features a wide range of digital communications interfaces. The system is available in both a 3U or 6U chassis size. Multiple communications interfaces can be used in either a redundant configuration or independent. As a result, the system can be used for two- or three-terminal lines as well as tapped load applications.
- Complete Current Differential Protection in the GARD 8000 Protective Relay and Communications System
- Duplicates the highly successful RFL 9300 measuring principle with added features
- Unaffected by up to +/- 4 ms channel asymmetry, giving a tolerance of 8 ms difference in transmit and receive path delays
- Dual Breaker option for breaker and a half or ring bus applications
- Single Pole trip
- Ideal for series compensated line applications
- 3U or 6U chassis depending on number of functional modules included
- Supports NERC/FERC security standards
- Phase-segregated measurement: three phase elements, one ground element
- High speed operation: 10 ms minimum
- Single or redundant communications interface
- Extensive Sequence of Event Reporting
- Digital fault records in COMTRADE: 32 samples per cycle
- Supports DNP 3.0
- A wide range of communication interfaces
- Two or three-terminal line applications
Product details
General
Catalog Number
RFL_GARD_8000
Humidity
Up to 95 percent at +40° C (+104° F), non-condensing
Input Power - Max
100 W
Mounting Method
19” Rack Mount
Radio Frequency Interference
RFI Susceptibility: ANSI PC37.90.2 (35 Volts/Meter), IEC 255-22-3 (RFI Class III)
Temperature Rating
Operating: -20° C to +75° C (-4° F to + 165° F), Storage: -40° C to +85° C (-40° F to +185° F)
Dimensions
Cubic Capacity
NaN cu.in
Depth
14.5 in
Height
- 5.25 in
- 10.5 in
Width
19 in
Electrical Ratings
Dielectric Strength
All contact inputs, solid-state outputs, power supply inputs and relay outputs meet the following specifications: ANSI C37.90-1989 (Dielectric), ANSI C37.90.1-2002 (SWC and Fast Transient), IEC 255-5 (1500 Vrms Breakdown Voltage and Impulse Withstand), IEC 255-22-1 (SWC Class III), IEC 255-22-2 (ESD Class III), IEC 255-22-4 (Fast-Transient Class III), IEC 834-1.
Input Voltage
- 24 VDC
- 48/125 VDC
- 120 VAC
- 250 VDC
- 220 VAC
Voltage Rating
- 19-29 VDC
- 38-150 VDC
- 96-132 VAC
- 200-300 VDC
- 200-240 VAC