7SR220 Settings Guide
Unrestricted Page 12 of 107 © 2013 Siemens Protection Devices Limited
Description Range Default
Gn Close Cct Supervision
When set to Disabled, no Close Cct Supervision elements will
be functional and all associated settings will be hidden. (The
Setting Dependencies setting being set to Disabled will make
all settings visible but will not allow them to operate).
Enabled, Disabled Disabled
Gn Inrush Detector
When set to Disabled, no Inrush Detector elements will be
functional and all associated settings will be hidden. (The
Setting Dependencies setting being set to Disabled will make
all settings visible but will not allow them to operate).
Enabled, Disabled Disabled
Gn Load Blinder
When set to Disabled, no Load Blinder elements will be
functional and all associated settings will be hidden. (The
Setting Dependencies setting being set to Disabled will make
all settings visible but will not allow them to operate).
Enabled, Disabled Disabled
Gn CB Counters
When set to Disabled, no Gn CB Counter elements will be
functional and all associated settings will be hidden. (The
Setting Dependencies setting being set to Disabled will make
all settings visible but will not allow them to operate).
Enabled, Disabled Disabled
Gn I^2t CB Wear
When set to Disabled, no Gn I^2t CB Wear elements will be
functional and all associated settings will be hidden. (The
Setting Dependencies setting being set to Disabled will make
all settings visible but will not allow them to operate).
Enabled, Disabled Disabled
Gn Arc Flash Detector
When set to Disabled, no Arc Flash Detector elements will be
functional and all associated settings will be hidden. (The
Setting Dependencies setting being set to Disabled will make
all settings visible but will not allow them to operate).
Enabled, Disabled Disabled
3.4. Current Prot’n
3.4.1. Phase Overcurrent
Description Range Default
Gn 67 Char Angle
Maximum torque angle for phase overcurrent elements
-95, -94 ... 94, 95 45 deg
Gn 67 Minimum Voltage
Selects the directional elements minimum voltage, below
which the element will be inhibited
1, 1.5 ... 19.5, 20 1 V
Gn 67 2-out-of-3 Logic
Selects whether 2 out of 3 voting logic is enabled for phase
overcurrent elements
Enabled, Disabled Disabled
Gn 50 Measurement
Selects whether the RMS value used by the 50 elements is
True RMS or only calculated at fundamental frequency
RMS, Fundamental RMS
Gn 51 Measurement
Selects whether the RMS value used by the 51 elements is
True RMS or only calculated at fundamental frequency
RMS, Fundamental RMS
3.4.1.1. 51-1
Description Range Default
Gn 51-1 Element
Selects whether the 51-1 IDMTL Overcurrent element is
enabled
Disabled, Enabled Disabled
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