ComAp IM-NT, Reference Manual

Page: 113 / 328

InteliMains
NT
, SW version 3.0
InteliMains-NT-BTB-3.0-Reference Guide.pdf,
©ComAp – June 2013
113
automatically when this setpoint is changed.
N
OTE
:
The actual setpoint units and range depend on setting of the Power format in
GenConfig.
N
OTE
:
If different voltage on BusL and on BusR is required the following procedure
is required:
Both setpoints (
BusLNomVph-ph and BusRNomVph-ph ) must be adjusted to
the same values according to the value of actual BusL or BusR nominal
voltage. E.g. BusR nominal is 400 V but BusL nominal is 415 V.
In this case both setpoints need to be adjusted to 400 V and setpoints of
corresponding protections for BusL need to be set assymetrically.
For 415 V on BusL it is typical to open BTB when voltage reaches 440 V or
390 V. Since the setpoint is adjusted to 400 V corresponding protection
setpoints need to be adjusted to
BusRight >V = 106% and BusRight <V = 97
% (hence the desired values are reached).
12.2.2.9 Setpoint: Nomin current
Group Basic Settings
Range [units] 1 .. 10000 [A]
Related FW 3.0
Force value
possible YES
Description This setpoint is used for adjusting the maximal allowed current at the busL.
The nominal current is used as the basis (100%) for busL thermal-
overcurrent protection (
2POvrldStEvDel ), and for short current protection
( BusL2Inom del ).
N
OTE
:
The setpoints BusLeftCTprim and BusLeftCTsec must be adjusted properly
to obtain correct busL current readings.
C
AUTION
!
The maximum measurable input current to the controller current terminals is
11A.
W
ARNING
!
Do not discconnect the CT terminals from the controller while there is
nonzero current in the CT primary circuit!