Date Code 20210405
Instruction Manual
SEL-FT50/SEL-FR12 Fault Transmitter and Receiver System
SEL-FT50/SEL-FR12 Fault Transmitter and Receiver System
Instruction Manual
Accelerate Tripping, Speed Up Restoration,
and Improve Safety on Distribution Feeders
SEL-RP50 not available in all regions
need new photo
Major Features and Benefits
The SEL-FT50/SEL-FR12 Fault Transmitter and Receiver System speeds up distribution-protection schemes by
detecting and transmitting distribution feeder fault information to recloser controls or relays. Install the SEL-FT50
Fault Transmitters on laterals, branches, and the main line to broadcast fault status to one or more SEL-FR12 Fault
Receivers. The SEL-FR12 communicates the fault data through M
IRRORED
B
ITS
®
communications to a relay or
recloser control within 6 ms.
➤
Real-Time Distribution Fault Detection.
Identify the faulted line segment with fault detection and low-
latency communication while a fault is still active; for use in protection schemes.
➤
Enhanced Protection.
Make real-time changes to the protection strategy based on information from the faulted
distribution-line segment.
➤
Improved Selectivity.
Trip a main feeder or branch recloser only when necessary. Avoid unnecessary entire-
feeder outages.
➤
Customized Reclosing Strategies.
Block or enable reclosing for specific line segments.
➤
Improved Power Quality, Reduced System Stress, Limited Equipment Damage, and Enhanced Safety.
Leverage faulted feeder status to better coordinate between protective elements, leading to faster trip times.
➤
Easy Operation.
Configure the fault transmitters and receiver without additional software.
➤
SEL-RP50 Fault Repeaters facilitate SEL-FT50 installations in locations where line-of-sight might be
obscured by terrain, trees, or buildings.
➤
No Batteries.
Power the SEL-FT50 and SEL-RP50 directly from line current.
SEL-FT50/SEL-FR12
Fault Transmitter and Receiver System
