7SR220 Settings Guide
Unrestricted Page 10 of 107 © 2013 Siemens Protection Devices Limited
Description Range Default
Earth Current Input
Selects whether 1 or 5 Amp terminals are being used for
Measured Earth inputs
1, 5 1 A
Earth CT Ratio Prim
Measured Earth CT ratio to scale primary current instruments
( 6 Character String) 2000 A
Earth CT Ratio Sec
Measured Earth CT ratio to scale secondary current instruments
0.2, 0.21 ... 2, 2.1.....7 1
SEF/REF Current Input
Selects whether 1 or 5 Amp terminals are being used for
SEF/REF inputs
1, 5 1 A
SEF/REF CT Ratio Prim
SEF/REF CT ratio to scale primary current instruments
( 6 Character String) 2000 A
SEF/REF CT Ratio Sec
SEF/REF CT ratio to scale primary current instruments
0.2, 0.21 ... 2, 2.1.....7 1
3.3. Function Config
Description Range Default
Gn Phase Overcurrent
When set to Disabled, no Phase Overcurrent 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 Voltage Cont O/C
When set to Disabled, no Voltage Cont O/C 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 Cold Load
When set to Disabled, no Cold Load 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 Derived E/F
When set to Disabled, no Derived E/F 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 Measured E/F
When set to Disabled, no Measured E/F 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 Sensitive E/F
When set to Disabled, no Sensitive E/F 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 Restricted E/F
When set to Disabled, no Restricted E/F 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 NPS Overcurrent
When set to Disabled, no NPS Overcurrent 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
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