System Parameters - Current Related - Eaton EMR-5000 Installation, Operation And Maintenance Manual

System Parameters – Current Related
Parameter Description
CT con Current transformer connection
CT pri Nominal current of the primary side of the current
transformers.
CT sec Nominal current of the secondary side of the current
transformers.
CT dir Protection functions with directional feature can only work
properly if the connection of the current transformers is
free of wiring errors. If all current transformers are
connected to the device with an incorrect polarity, the
wiring error can be compensated by this parameter. This
parameter turns the current vectors by 180 degrees.
XCT pri This parameter defines the primary nominal current of
the connected ground current transformer. If the ground
current is measured via the Residual connection, the
primary value of the phase current transformer must be
entered here.
XCT sec This parameter defines the secondary nominal current of
the connected ground current transformer. If the ground
current is done via the Residual connection, the primary
value of the phase current transformer must be entered
here.
XCT dir Ground fault protection with directional feature depends
also on the correct wiring of the ground current
transformer. An incorrect polarity/wiring can be corrected
by means of the settings "0°" or "180°". The operator has
the possibility of turning the current vector by "180°"
(change of sign) without modification of the wiring. This
means, that – in terms of figures - the determined current
indicator was turned by "180°" by the device.
EMR-5000
Setting range
3-wire,
4th CT IN,
4th CT IG
1 - 50000A
1A,
5A
0°,
180°
1 - 50000A
1A,
5A
0°,
180°
www.eaton.com
IM02602012E
Default Menu path
3-wire [System Para
/General Settings]
10A [System Para
/General Settings]
5A [System Para
/General Settings]
0° [System Para
/General Settings]
50A [System Para
/General Settings]
5A [System Para
/General Settings]
0° [System Para
/General Settings]
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