IGS-NT-BC, SW Version 1.2.0,
©ComAp – January 2019
IGS-NT-BC-1.2.0 Reference Guide.PDF
73
Range [units]
/5, /1 [A]
Related FW
3.0
Description
Nominal current of the
secondary side
of the current transformer connected to
the controller terminals labeled
IN
. The primary side is adjusted by setpoint
N
OTE
:
The
IN
terminals can be used either for measurement of earth current or mains
current (mains import). See also the setpoint
I/E-Pm meas
.
N
OTE
:
The CT secondary nominal current is adjustable only in IG-NTC and IS-NT. The
IG-NT has the CT secondary nominal current adjusted fixedly to 5A regardless of
this setpoint.
Setpoint: VT ratio
Group
Basic Settings
Range [units]
0.1 .. 500.0 [V/V]
Related FW
3.0
Description
The setpoint is used to adjust the generator voltage transformers ratio.
N
OTE
:
Adjust the setpoint to the value of
1.0
if the generator voltage is connected directly
to the controller terminals, i.e. without transformers.
N
OTE
:
Example: if you have transformers with ratio 6000/100V adjust the setpoint to the
value of
60.0
.
N
OTE
:
The range of the generator voltage inputs must be adjusted properly. See the
setpoint
Setpoint: Vg InpRangeSel
Group
Basic settings
Range [units]
277V, 120V [-]
Related FW
3.0
Description
This setpoint selects the range of the generator voltage terminals. The 120V
range is available only in IG-NTC and IS-NT. The IG-NT has the range adjusted
fixedly to 277V regardless of this setpoint.
N
OTE
:
The 277V range is suitable for both European (230V) and American (277V)
measurement. The range 120V is intended for high-voltage applications where
voltage transformers with 100V secondary range are used or for alternative
American (120V) measurement.
