ABB FS450R12KE3/AGDR-71C IGBT module
Data communicationThe feeder protection relay is equipped with a
serial communication port on the rear panel.
The serial port is used for connecting the
relay to the SPA bus via an optional bus connection module. Two bus connection module
types are available: SPA-ZC 17 and SPAZC 21. The former can be powered from the
host relay and from a separate power source
at the same time, while the latter is powered
from the host relay via the D-type connector.
Output relays and circuit
breaker control
The feeder protection relay is provided with
nine output auxiliary relays, four of which are
heavy-duty output relays for the direct control
of the circuit breaker. Single-pole or doublepole circuit breaker control can be used. One
of the five signalling relays is permanently
allocated for the self-supervision system. The
function of the other four relays can be
defined by the user.
Self-supervision
The relay incorporates a sophisticated selfsupervision system with auto-diagnosis,
which increases the availability of the relay
and the reliability of the system. The selfsupervision system continuously monitors the
hardware and the software of the relay. The
system also supervises the operation of the
auxiliary supply module and the voltages
generated by the module.
Auxiliary supply voltage
The auxiliary supply of the relay is obtained
from an internal plug-in type power supply
module. Two auxiliary power module versions are available: type SPGU 240A1 for the
supply voltage range 80…265 V ac/dc and
type SPGU 48B2 for the supply voltage range
18…80 V dc. The power supply module
forms the internal voltages required by the
protection relay and the I/O module.

Table 1: Energizing inputs
Terminals X0/1-3, 4-6, 7-9,
X0/13-15, 16-18,
X0/19-21, 25-27
X0/37-39
X0/1-2, 4-5, 7-8,
X0/13-14, 16-17,
X0/19-20, 25-26,
X0/37-38
Rated current In 1 A 5 A
Thermal current
withstand
continuously 4 A 20 A
for 10 s 25 A 100 A
for 1 s 100 A 500 A
Dynamic current
withstand
Half-wave value 250 A 1250 A
Input impedance <100 mΩ <20 mΩ
Rated frequency fn, according to order 50 Hz or 60 Hz
Table 2: Output contact ratings
Type of contact Tripping Signalling
Terminals X1/11-12-13-14
X1/15-16-17-18
X2/3-4, 5-6
X2/7-8, 9-10
X2/11-12-13
X2/14-15
X2/16-17-18
Rated voltage 250 V ac/dc
Thermal withstand
capability
Carry continuously 5 A 5 A
Make and carry for 0.5 s 30 A 10 A
Make and carry for 3 s 15 A 8 A
Breaking capacity for dc,
when the signal circuit
time constant
L/R ≤ 40 ms, at the
signalling voltage levels
220 V dc 1 A 0.15 A
110 V dc 3 A 0.25 A
48 V dc 5 A 1 A