7SG11 Argus Technical Reference
©2013 Siemens Protection Devices Limited
P20007 Page 28 of 71
Ia
Ib
Ic
>
>
>
P300008 Protection Functions / Instantaneous P/F
1
Dir'n B Fwd
Dir'n C Fwd
Dir'n A Fwd
P/F Lowset Inhib.
P/F Lowset
*
This diagram shows t he logic for
overcurrent elements in the forward
direction; reverse is similar. On relays
with no di rectional elements these
inputs and settings are omitted.
*
*
*
*
Event
Event
Event
Event
Event
Event
Phase A
lowset starter
Phase B
lowset starter
Phase B
lowset starter
Phase A
lowset trip
Phase B
lowset trip
Phase B
lowset trip
P/F Lowset Setting
P/F Lowset Delay
P/F Lowset Dir Control
c
c
c
c
Figure 2.3-3
Functional Diagram – Instantaneous Phase-fault Overcurrent Elements
The earth-fault pole similarly has its own Instantaneous Lowset, Highset1 and Highset2 overcurrent elements with
their own starter settings and selectable DTL characteristic.
Ie
E/F Lowset Delay
>
P300008 Protection Functions / Instantaneous E/F
Dir'n E/F Fwd
E/F Lowset Inhib.
E/F Lowset
*
*
This diagram shows t he logic for
overcurrent elements in the forward
direction; reverse is similar. On relays
with no di rectional elements these
inputs and settings are omitted.
Event
Event
Earth lowset
starter
Earth lowset trip
*
E/F Lowset Setting
E/F Lowset Dir Control
c
c
Figure 2.3-4
Functional Diagram – Instantaneous Earth-fault Overcurrent Elements
Table 2-11
Phase-fault and Earth-fault Overcurrent Settings
Sub-menu:
Protection
Setting name
Range (
bold
= default)
Units Notes
Gn P/F [E/F] Charact. Dir
Control
OFF
, FWD, REV, TRI
Argus 2 and Argus 6 only.
Gn P/F [E/F] Charact. Setting
0.05, 0.10, 0.15…
1.00
…2.50
xIn
Gn P/F [E/F] Charact.
NI
, VI, EI, LTI, DTL
Gn P/F [E/F] Charact. Time Mult
0.025, 0.050…
1.000
…1.600
xt
Gn P/F [E/F] Charact. Delay
0.00, 0.01…
5.00
…20.00, 20.5 …100,
101 … 300
sec
see note 1 below
Gn P/F [E/F] Lowset Dir Control OFF
, FWD, REV, TRI
Argus 2 and Argus 6 only.
Gn P/F [E/F] Lowset Setting
OFF, 0.05, 0.10…
1.00
…3.00,
3.5, 4.0…52.5
xIn
Gn P/F [E/F] Lowset Delay
0.00,
0.01…20.00, 20.5 …100, 101 …
300
sec
see note 1 below
Gn P/F [E/F] Highset 1 Dir
Control
OFF
, FWD, REV, TRI
Argus 2 and Argus 6 only.
Gn P/F [E/F] Highset 1Setting
OFF, 0.05, 0.10…3.00
3.5, 4.0…
10.0
…52.5
xIn
see note 1 below