DEMA CPM 310 G User Manual page 101

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Please read the warnings on this page!
Secondary Earth Nominal Current
This field enables the declaration of the secondary
earth nominal current and earth protection range. The
options available for the field are listed below.
Option Earth Protection Type
T1-1A T1 (Type 1)
T1-5A T1 (Type 1)
T2-1A T2 (Type 2)
T2-5A T2 (Type 2)
WARNING!
Setting current transformers characteristics on the
Current Transformers Menu does not provide the
correct operation of CPM 310 G by itself; but also, the
dip-switch settings must also be done! Incomplete and
inappropriate settings on the menus and dip-switches
may result in secondary protection, selectivity and
supply continuity failures, performance drops and
misinterpretations!
Dip-Switch Settings
Please see the
information on the secondary signal processing
principles of CPM 310 G, at p.47 of this manual. □
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Range I
en
(0.1 - 40) I 1 A
en
(0.1 - 40) I 5 A
en
(0.02 - 5) I 1 A
en
(0.02 - 5) I 5 A
en
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