ComAp IG-NTC GC

IGS-NT-BC, SW Version 1.2.0, ©ComAp – January 2019
IGS-NT-BC-1.2.0 Reference Guide.PDF
75
the phase-neutral nominal voltage automatically.
NOTE:
The actual setpoint units and range depend on setting of the Power format in
GenConfig.
NOTE:
If different voltage on gen-set and on Bus/Mains is required the following
procedure is required:
Both setpoints (BusNomV and GenNomV) must be adjusted to the same values
according to the value of actual generator nominal voltage. E.g. gen-set nominal is
231 V but Bus/Mains nominal is 240 V.
In this case both setpoints need to be adjusted to 231 V and setpoints of
corresponding protections for Bus/Mains need to be set assymetrically.
For 240 V on Bus/Mains it is typical to open MCB when voltage reaches 254 V or
225 V. Since the setpoint is adjusted to 231 V corresponding protection setpoints
need to be adjusted to Mains >V MP = 106% and Mains <V MP = 97 % (hence
the desired values are reached).
Setpoint: BankNomVph-ph
Group
Basic Settings
Range [units]
17 .. 60000 [V]
Related FW
3.0
Description
This setpoint is used to adjust the nominal (rated) generator voltage (phase to
phase). This setpoint is also recalculated automatically when the phase-neutral
nominal voltage BankNomV is changed.
This setpoint can be used if you know the phase-phase nominal voltage only. The
controller will recalculate the phase-neutral nominal voltage automatically when
this setpoint is changed.
NOTE:
The actual setpoint units and range depend on setting of the Power format in
GenConfig.
NOTE:
If different voltage on gen-set and on Bus/Mains is required the following
procedure is required:
Both setpoints (BankNomVph-ph and BusNomVph-ph) must be adjusted to the
same values according to the value of actual generator nominal voltage. E.g. gen-
set nominal is 400 V but Bus/Mains nominal is 415 V.
In this case both setpoints need to be adjusted to 400 V and setpoints of
corresponding protections for Bus/Mains need to be set assymetrically.
For 415 V on Bus/Mains it is typical to open MCB when voltage reaches 440 V or
390 V. Since the setpoint is adjusted to 400 V corresponding protection setpoints
need to be adjusted to Mains >V MP = 106% and Mains <V MP = 97 % (hence
the desired values are reached).
Setpoint: BusNomV
Group
Basic Settings
Range [units]
10 .. 34641 [V]