Technical Data
4.1 General
SIPROTEC, 7SD5, Manual
C53000-G1176-C169-5, Release date 02.2011
572
4.1.2
Auxiliary Voltage
Direct voltage
Alternating voltage
Voltage supply via integrated converter
Nominal auxiliary voltage DC U
AUX
DC 24 V/48 V DC 60 V/110
V/125 V
DC
110 V/125 V/
220 V/250 V
DC 220 V/250
V
Admissible voltage ranges
DC 19 V to
58 V
DC 48 V to
150 V
DC 88 V to
300 V
DC 176 V to
300 V
Permissible AC ripple voltage,
Peak to peak, IEC 60255-11
≤
15 % of the nominal auxiliary voltage
Power input
- Quiescent
Approx. 5 W
- Energized
7SD5***-*A/E/J
Approx. 12 W
7SD5***-*C/G/L/N/Q/S
Approx. 15 W
7SD5***-*D/H/M/P/R/T
Approx. 18 W
Plus approx. 1.5 W per interface module
Bridging time for failure/short-circuit of the power
supply, IEC 60255-11
≥
50 ms at U
Aux
= 48 V and U
Aux
≥
110 V
≥
20 ms at U
Aux
= 24 V and U
Aux
≥
60 V
Voltage supply via integrated converter
Nominal auxiliary voltage AC U
AUX
AC 115 V
Admissible voltage ranges
AC 92 V to 230 V
Power input
- Quiescent
Approx. 7 VA
- Energized
7SD5***-*A/E/J
Approx. 17 VA
7SD5***-*C/G/L/N/Q/S
Approx. 20 VA
7SD5***-*D/H/M/P/R/T
Approx. 23 VA
plus approx. 1.5 VA per interface module
Bridging time for failure/short circuit of alternating
auxiliary voltage
≥
50 ms
