Woodward GCP-30 Series - Page 24

Manual 37278B GCP-30 Series - Genset Control
Page 24/174 © Woodward
Instead of these two voltage parameters, The following voltage system parameters are displayed for the RPQ
Package:
The respective system is activated using the discrete input at the terminals 72 and 73. Refer to the Discrete Input
section in Installation Manual 37320 for further information about this.
Parameter 24
Rated Voltage
System y 000V
[y = 1 to 4]
only RPQ Package
Rated voltage system y [y = 1 to 4] [4] 50 to 480 V
This value configures the rated voltage (V
ph-ph
).
The percentage values of the following parameters refer to this value:
- Generator voltage monitoring
- Mains voltage monitoring
- Insensitivity voltage controller
- Synchronizing dV max
- Dead bus start GCB dV max
Parameter 25
Setpoint Voltage
System y 000V
[y = 1 to 4]
only RPQ Package
Generator set point voltage system y [y = 1 to 4] [4] 50 to 530 V
This voltage value configures the set point of the generator voltage in isolated and
no-load operation. The percentage value of the parameter "Start voltage U control."
(Parameter 67) refers to this value.
Parameter 26
CT generator
System y 0000/x
[y = 1 to 4]
only RPQ Package
Current transformer generator system y [y = 1 to 4] 10 to 7.000/{X} A
The input of the CT ratio is necessary in order to display and control the actual val-
ues. The CT ratio must be selected so that, at maximum power, at least 60 % of the
CT nominal current flows. A lower percentage may lead to malfunctions. Addition-
al inaccuracies in the control and monitoring functions also occur.
{x} = 1 A ....... Secondary current = 1 A at primary rated current = {X} A;
{x} = 5 A ....... Secondary rated current = 5 A at primary rated current = {X} A;
{X} ................ e.g. from the main series 10, 15, 20, 30, 50 or 75 A and the decimal
fractions and multiples of these or the corresponding secondary se-
ries with 25, 40 or 60 A.
Parameter 27
Gen Rated curr.
System y 0000A
[y = 1 to 4]
only RPQ Package
Generator rated current system y [y = 1 to 4] 10 to 7.000 A
Here the generator rated current is configured (only the percentage inputs for cur-
rent protection refer to this parameter).
Parameter 28
Gen rated power
System y 0000kW
[y = 1 to 4]
only RPQ Package
Generator rated power system y [y = 1 to 4] 5 to 9.999 kW
Here the generator rated power is configured. The exact value of the generator
rated power is absolutely vital. Many measurement, control and monitoring func-
tions refer to this value (e.g. the percentage input for the power protection).