Siemens Argus 7SR21 Technical Manual page 557
Overcurrent relay
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Also See for Argus 7SR21:
- Manual (71 pages) ,
- Installation manual (22 pages) ,
- Manual (69 pages)
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Is
Phase
(Amps)
I
(I
)
L1
A
I
(I
)
L2
B
I
(I
)
L3
C
1.1.1.1
Element Blocking
The Undercurrent elements can be blocked by Binary Input Inhibit. This functionality should be checked.
Check correct indication, trip output, alarm contacts, waveform record.
© 2013 Siemens Protection Devices Limited
DTL
P.U. Current
(sec)
Amps
Element
37-1
37-2
7SR210 & 7SR220 Commissioning & Maintenance Guide
Operate Time
Tolerance
0.5 x Is
Tolerance
BI Inhibits
Page 45 of 82
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