132 Functional description CG Drives & Automation 01-7318-01r1
Grid Code ROCOF Protection [G13]
This sub menu provides settings related to Rate Of Change
Of Frequency (ROCOF) protection. Trip level, trip time,
hysteresis and reset time can be configured here.
Grid Code ROCOF Protection level [G131]
Trip level for rate of change of frequency (ROCOF)
protection.
Grid Code ROCOF Protection Trip Time
[G132]
Trip time for rate of change of frequency (ROCOF)
protection.
Grid Code ROCOF Protection ROCOF
Hysteresis [G133]
ROCOF hysteresis for grid code ROCOF protection.
Grid Code ROCOF Protection Reset Time
[G134]
Reset time settings for ROCOF protection.
11.12.2 Grid Code Reactive Power
(Q) Functions [G20]
Settings related to different grid code reactive power (Q)
support modes.
Grid Code Reactive Power (Q) support
mode [G21]
Select the required grid code reactive power (Q) support
mode here.
Q control via the set point (Q fix) [G22]
This sub-menu provides the additional settings (over excited
and under excited Q limits) when the reactive power (Q)
reference is controlled via the set point i.e. Q reference is
provided by the set point. Set point can be configured
locally through keyboard [310], from remote (analogue
input) or through serial communication. For details read
section 7.17.2, page 41.
Maximum Reactive Power (Q) in Over
Excitation [G221]
Sets the maximum limit of reactive power (Q) in over-
excited mode.
Default: 2.00%/s
Range: 0.0%/s - 100.0%/s
Default: 2.00s
Range:
0 = Off
0.01s - 60.00s
Default: 0.02%/s
Range: 0.0%/s - 100.0%/s
Default: 1.00s
Range: 0.00s - 60.00s
G131 ROCOF Level
Stp 2.00%/s
G132 ROCOF Time
Stp 2.00s
G133 ROCOF Hyst
Stp 0.02%/s
G134 ROCOF Rst T
Stp 1.00s
Default: Off
Off 0
Disables grid code reactive power sup-
port.
Q fix 1
Reactive power support via the set
point (from Keyb, remote or comm).
CosΦ fix 2
Reactive power support via the set
point (from Keyb, remote or comm).
Q(U) 3
Reactive power support as a function
of grid/network voltage.
Cos
Φ(U) 4
Reactive power support as a function
of grid/network voltage.
Q (P) 5
Reactive power support as a function
of feed in power.
Cos
Φ(P) 6
Reactive power support as a function
of feed in power.
Default: 50%
Range: 0% - 100%
NOTE:
-ve sign in [G221] indicates the under excited mode and
+ve sign indicates the over-excited mode.
To Next Page
Loading...
Need help?
General