Pre-emptive condition monitoring
For continuous knowledge of the operational availability of the
REF615R features, a comprehensive set of monitoring func
tions to supervise the relay health, the trip circuit, and the circuit
breaker health is included. The breaker monitoring can include
checking the wear and tear of the circuit breaker, the spring
charging time of the breaker operating mechanism and the gas
pressure of the breaker chambers. The relay also monitors the
breaker travel time and the number of circuit breaker operations
to provide basic information for scheduling breaker mainte nance.
Bus protection via GOOSE
The IEC 61850 implementation in REF615R includes
fast peer-to-peer communication, over the substation bus.
Use GOOSE communication between REF615R IEDs of the
incoming and outgoing feeders of a substation to form a stable,
reliable, and high-speed busbar protection system. The cost-ef
fective GOOSE-based busbar protection is obtained by config
uring the IEDs and the operational availability of the protection
is assured by continuous supervision of the protection IEDs
and their GOOSE messaging over the station bus. No separate
hard-wiring is needed for the horizontal communication between
the switchgear cubicles.
Analog inputs
− Three phase currents: 5/1 A programmable
− Ground current: 5/1 A programmable or 0.2 A
− Rated frequency: 60/50 Hz programmable
− Three-phase and ground voltages: programmable nominal
secondary voltage
Binary inputs and outputs
− Eleven binary inputs standard
− Seven programmable outputs
− Three outputs configurable to NO or NC standard. One con
figurable output if HSO option is selected.
− One Form C self-check alarm output
− High-speed outputs (HSO) optional
Communication
− IEC 61850-8-1 with GOOSE messaging
− DNP3.0 Level 2+ over TCP/IP
− Modbus over TCP/IP
− Time synchronization via SNTP (primary and backup servers)
− Optional serial RS-485 port programmable for DNP3.0 Level
2+ or Modbus RTU
− Optional IRIG-B time synchronization
Control voltage
− Option 1: 48 ... 250 V dc, 48 … 240 V ac
− Option 2: 24 ... 60 V dc
Product dimensions and weights
− Product Dimensions: 19.00” (482.60 mm) W x 5.22” (132.59
mm) H x 9.08” (230.66 mm) D
− Product Weight: 11.9 lb (5.4 kg)
The REF615R fits the same cutout as the DPU2000R. Dimen
sions of that cutout are available in the product guide and pro
duct manual and can be downloaded from the Relion website at
www.abb.com/relion.
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