ComAp IM-NT-BB Reference Manual page 105

Intelimains nt series bus tie breaker application
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Related FW
3.0
Description
This setpoint is used to select, which method is used for measurement of the
active power (P) transported from busL to busR. Positive measured value
means that power is transmitted from busL to busR, negative value means
the opposite.
12.2.1.6
Setpoint: I/E-QbL meas
Group
Process Control
Range [units]
NONE, CT INPUTS, ANALOG INPUT [-]
Related FW
3.0
Description
This setpoint is used to select, which method is used for measurement of the
reactive power (Q) transported from busL to busR. Positive measured value
means that power is transmitted from busL to busR, negative value means
the opposite.
N
:
OTE
If the reactive power is measured, then the measurement method should
match the method used for active power measurement, i.e. if the setpoint
PbL meas
ANALOG INPUT and vice versa.
NT
InteliMains
, SW version 3.0
InteliMains-NT-BTB-3.0-Reference Guide.pdf, ©ComAp – June 2013
NONE: Active power from the busL is not measured. IM-NT controller
will not influence gen-sets on the bus even if BTB is closed.
CT INPUTS: Active power from the busL is calculated from the busL
L-N voltages and busL currents measured at the controller CT
terminals.
ANALOG INPUT: Active power from the busL is measured by an
external device and passed the controller via analog input
PbL.
NONE: Reactive power from the busL is not measured.
N
:
OTE
It is possible to perform import/export load control without reactive
power measurement, i.e. based on active power measuement only.
The gen-sets group power factor will be maintained at constant level
given by
#SysPwrFactor
setpoint. However, this kind of operation in
certain conditions may cause bad power factor values.
CT INPUTS: Reactive power from the mains is calculated from the
busL L-N voltages and busL currents measured at the controller CT
terminals.
ANALOG INPUT: Rective power from the busL is measured by an
external device and passed the controller via analog input
QbL.
is set to CT INPUTS, the
I/E-QbL meas
should not be set to
MLC:I/E-
MPF:I/E-
I/E-
105

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