Design Description; Technical Data - ABB RET 54 Series Technical Reference Manual, General

1MRS755225
5.2.
5.2.1.
Transformer Terminal
Technical Reference Manual, General

Design description

Technical data

Table 5.2.1-1 Energizing inputs
Rated frequency
Current inputs
Voltage inputs
Table 5.2.1-2 Auxiliary power supplies
Type
Input voltage, AC
Input voltage, DC
Voltage variation
Burden
Ripple in DC auxiliary voltage
Interruption time in auxiliary DC
voltage without resetting
Internal overtemperature
indication
Table 5.2.1-3 Digital inputs
Power supply version
Input voltage, DC
Activating range, DC
Current drain
Power consumption/input
Pulse counting (specific
digital inputs), frequency range
50.0/60.0 Hz
rated current
thermal withstand continuously
capability
for 1 s
dynamic current withstand, half-wave
value
input impedance
rated voltage
voltage withstand, continuous
burden at rated voltage
PS1/240V PS2/240V External
(RET 541, (RET 545 display
RET 543) only) module
110/120/220/240 V
110/125/220 V
AC 85...110%, DC 80...120%
of rated value
<50 W
max. 12% of rated DC value (IEC 60255-11)
<40 ms, 110 V and
<100 ms, 200 V
+78C (+75...+83C)
PS1/240 V (High) PS1/240 V (Medium),
PS2/240 V
220 V 110/125/220 V
155...265 V 80...265 V
~2...25 mA
<0.8 W
0...100 Hz
RET 54_
0.2 A/1 A/5 A
1.5 A/4 A/20 A
20 A/100 A/500 A
50 A/250 A/1250 A
<750 m/<100m
<20 m
100 V/110 V/115 V/120 V
(parameterization)
2 x U (240 V)
n
<0.5 VA
PS1/48V PS2/48V
(RET 541, (RET 545
RET 543) only)
-
24/48/60 V
DC 80...120% of rated
value
<60 ms, 48 V and <100
ms, 60 V
PS1/48 V (Low), PS2/48
V
24/48/60/110/125/220 V
18...265 V
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