ComAp IG-NT Reference Manual page 91

Step: 1°
Range: -45° to +45°
Following is an example of the controller connection to a high voltage system.
T1 shifts phase +30° and no shift is on T2. GtoM AngleReq = +30° for this example.
3
T2
Vm Im
Phase window
Maximum phase angle (mains/bus x generator voltage) ±difference between requested and actual angle for
synchronizing.
Step: 1°
Range: 0° – 90°
Force value possibility: Yes
Hint:
If you want to lock out the GCB (or MCB) closing during synchronizing loop test, set Phase window = 0. This
allows the control loop to be tested while actual GCB (or MCB) closing is blocked.
If force value function is used with this setpoint, it is strongly recommended to use only another setpoint as
the source of an alternative value (preferably from group Force value). Measured values are not optimal for
this purpose.
Dwell time
The period of time that the phase angle must be within Phase window and voltage differece within Voltage
window before a breaker (GCB/MCB) is closed.
Step: 0,1 s
Range: 0,0 – 25,0 s
Force value possibility: Yes
Freq gain
Gain of frequency control loop.
Step: 0,1 %
Range: 0,0 % - 200,0 %
Freq int
Relative integration factor of frequency control loop.
Step: 1 %
Range: 0 % – 100 %
Freq reg loop
ALL THE TIME: Frequency control is active in island operation, running unloaded period and synchronizing.
SYNC ONLY: Frequency control is active during synchronizing only.
Force value possibility: Yes
Inteli NT SPtM, SW Version 2.4, ©ComAp –December 2009
IGS-NT-SPtM-2.4-Reference Guide.PDF
LOAD
T1
MCB
3x10 kV
MCB
IG/IS-NT
[ ° ]
(FV)
[ s ] (FV)
[ % ]
[ % ]
[ ALL THE TIME / SYNC ONLY ]
GCB
4
3x230/400VAC
GCB
G
L1, L2, L3, N
4
Vg Ig
(FV)
91