Siemens 7SR12 Argus - Page 306

7SR11 & 7SR12 Commissioning and Maintenance Guide
©2017 Siemens Protection Devices Limited Chapter 6 Page 22 of 72
2.4.1.3 Element Blocking
The 51c Overcurrent elements can be blocked by Binary Input Inhibit. This functionality should be checked.
Element
BI Inhibits
51c
Operate
time
(expected)
Reset time
(calculated)
Operate time
(measured)
50% Reset
Time
(calculated)
50% operate
time
(calculated)
50% operate time
(measured)
First test (c) Second Test (c)