Sync/Load Ctrl - ComAp IG-NT GC Reference Manual

Sync/Load ctrl

SpeedRegChar
Switch between speed governor characteristic.
When the controller Speed governor output voltage increases – engine speed increases.
POSITIVE:
When the controller Speed governor output voltage decreases – engine speed increases.
NEGATIVE:
Hint:
When set to NEGATIVE, Binary outputs Speed Up and Speed Dn still work without inversion.
Voltage window
Maximum difference between generator and mains/bus voltage.
Step: 0,1 % of GenNomV
0,0 – 100,0 % of GenNomV
Range:
Force value: Yes
Hint:
See Voltage phases match indication on the controller Synchronizing screen.
Example 1.
Voltage match 1 2 3 Note:
1 1 0 Phase L3 is out of voltage window
Example 2.
Voltage match 1 2 3 Note:
1 1 1 All phases are in voltage window
GtoM AngleReq
Requested phase difference between generator and mains voltage during synchronizing. Use this setpoint
for phase correction of potential transformers connection.
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
0 – 90
Range:
Inteli NT GeCon-MARINE SPI, SW Version 3.2, ©ComAp – July 2015
IGS-NT-GeCon-MARINE-SPI-3.2.PDF
[ POSITIVE / NEGATIVE ]
[ % ] (FV)
[  ]
LOAD
T1
MCB
3x10 kV
MCB
IG/IS-NT
[  ]
(FV)
GCB
4
3x230/400VAC
GCB
G
L1, L2, L3, N
4
Vg Ig
93