Siemens Argus 7SR21 Technical Manual page 574

Overcurrent relay
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7SR210 & 7SR220 Commissioning & Maintenance Guide
Power
U/O
(xSn)
32S-1
32S-2
If the element is set as 32S-n U/C Guarded, the setting can be tested by applying the test current at a level below
the 32S-n U/C Guard Setting at a power in the operate range. Increase the current until the relay operates.
UCG
UCG
Power element
Setting
Used for test
(xIn)
U/O
Power
1.1.1.1
Element Blocking
The U/O Power elements can be blocked by Binary Input Inhibit. This functionality should be checked.
Check correct indication, trip output, alarm contacts, waveform record.
When testing is complete reinstate the disabled functions.
Page 62 of 82
DTL
P.U.
D.O.
(sec)
Power
Power
(xSn)
(xSn)
Blocked
Current
(D.O.)
Element
32S-1
32S-2
Operate
UC
Time
Guard
+/- 0.5Hz
Unblocked
Current
(P.U.)
BI Inhibits
© 2013 Siemens Protection Devices Limited
NOTES
NOTES

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