Siemens Argus 7SR21 - Page 557

7SR210 & 7SR220 Commissioning & Maintenance Guide
© 2013 Siemens Protection Devices Limited Page 45 of 82
Phase
Is
(Amps)
DTL
(sec)
P.U. Current
Amps
Tolerance
Operate Time
0.5 x Is
Tolerance
I
L1
(I
A
)
I
L2
(I
B
)
I
L3
(I
C
)
1.1.1.1 Element Blocking
The Undercurrent elements can be blocked by Binary Input Inhibit. This functionality should be checked.
Element BI Inhibits
37-1
37-2
Check correct indication, trip output, alarm contacts, waveform record.