Auxiliary Energising Quantity - Siemens 7SG11 Manual

1.2.1.2 AC Voltage
Argus 2 and Argus 6 relays only
Nominal Voltage and Range
Nominal
Vn 110 V
Burden
Attribute
AC Burden
1.2.2

Auxiliary Energising Quantity

Auxiliary Power Supply
Nominal
24, 30, 48 V
V
AUX
110, 220 V
Burden
Attribute
DC Burden
Status (Digital) Inputs
Nominal
30, 34 V
48, 54 V
V
ST
110, 125
220, 250
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
110, 125 V
220, 250 V
Performance
Attribute
Minimum DC current for
operation
Reset/Operate voltage ratio
Typical response time
Typical response time when programmed to
energise an output relay contact
Recommended Minimum pulse duration
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.
©2013 Siemens Protection Devices Limited
Operating Range
250 V continuous
Value
< 0.1 VA at 110 V
Operating Range
18 to 60 VDC
88 to 280 VDC
100 to 130 VAC
Value
Quiescent (typical) 3 W
Maximum 10 W
Operating Range
18 to 37.5 VDC
37.5 to 60 VDC
87.5 to 137.5 VDC
175 to 280 VDC
Resistor Value; Rating
2K7
8K2
Value
V = 30 – 54 V 10 mA
ST
V = 110 – 250 V < 5 mA
ST
90 %
5 ms (10ms for ARGUS 2 type II )
< 15 ms
40 ms with setting of 20ms PU delay for a.c. rejection
7SG11 Argus Technical Reference
5 %; 2.5 W
5 %; 6.0 W
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