Current Prot'n; Phase Overcurrent - Siemens Argus 7SR21 Technical Manual

7SR220 Settings Guide
Description
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).
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).
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).
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).
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).
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).

3.4. Current Prot'n

3.4.1.

Phase Overcurrent

Description
Gn 67 Char Angle
Maximum torque angle for phase overcurrent elements
Gn 67 Minimum Voltage
Selects the directional elements minimum voltage, below
which the element will be inhibited
Gn 67 2-out-of-3 Logic
Selects whether 2 out of 3 voting logic is enabled for phase
overcurrent elements
Gn 50 Measurement
Selects whether the RMS value used by the 50 elements is
True RMS or only calculated at fundamental frequency
Gn 51 Measurement
Selects whether the RMS value used by the 51 elements is
True RMS or only calculated at fundamental frequency
3.4.1.1. 51-1
Description
Gn 51-1 Element
Selects whether the 51-1 IDMTL Overcurrent element is
enabled
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Range
Enabled, Disabled
Enabled, Disabled
Enabled, Disabled
Enabled, Disabled
Enabled, Disabled
Enabled, Disabled
Range
-95, -94 ... 94, 95
1, 1.5 ... 19.5, 20
Enabled, Disabled
RMS, Fundamental
RMS, Fundamental
Range
Disabled, Enabled
© 2013 Siemens Protection Devices Limited
Default
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Default
45 deg
1 V
Disabled
RMS
RMS
Default
Disabled