7SG11 Argus Technical Reference
©2013 Siemens Protection Devices Limited
P20007 Page 8 of 71
1.2.1.2
AC Voltage
Argus 2 and Argus 6 relays only
Nominal Voltage and Range
Nominal
Operating Range
Vn
110 V
250 V continuous
Burden
Attribute
Value
AC Burden
< 0.1 VA at 110 V
1.2.2 Auxiliary Energising Quantity
Auxiliary Power Supply
Nominal
Operating Range
24, 30, 48 V
18 to 60 VDC
V
AUX
110, 220 V
88 to 280 VDC
100 to 130 VAC
Burden
Attribute
Value
Quiescent (typical)
3 W
DC Burden
Maximum
10 W
Status (Digital) Inputs
Nominal
Operating Range
30, 34 V
18 to 37.5 VDC
48, 54 V
37.5 to 60 VDC
110, 125
87.5 to 137.5 VDC
V
ST
220, 250
175 to 280 VDC
When relays with 48/54V status inputs are supplied for 110/125 V or 220/250 V working, external dropper
resistors will be supplied listed in the table below. This will enable the status input performance specified below
for the 48/54V status inputs to be achieved on 110/125 V or 220/250 V.
Nominal Operating Voltage
Resistor Value; Rating
110, 125 V
2K7 5 %; 2.5 W
220, 250 V
8K2 5 %; 6.0 W
Performance
Attribute
Value
V
ST
= 30 – 54 V
10 mA
Minimum DC current for
operation
V
ST
= 110 – 250 V
< 5 mA
Reset/Operate voltage ratio
90 %
Typical response time
5 ms (10ms for ARGUS 2
type II
)
Typical response time when programmed to
energise an output relay contact
< 15 ms
Recommended Minimum pulse duration
40 ms with setting of 20ms PU delay for a.c. rejection
Each status input has associated timers which can be programmed to give time delayed pick-up and time delayed
drop-off. These timers have default settings of 20ms, thus providing rejection and immunity to an AC input signal.
Status inputs will not respond to the following:-
250V RMS 50/60Hz applied for two seconds through a 0.1 F capacitor.
Discharge of a 10 F capacitor charged to maximum DC auxiliary supply voltage.