Manual 37259C
SPM-D11 - Synchronizing Unit
Page 22/79
© Woodward
Additional Conditions
The function of the control is also dependent, apart from the digital input signals, on the state of the available
measured voltages. The particular function must also be enabled in configuration mode:
Condition
A
Synchronization
Generator circuit breaker
- Generator and synchronization voltage must comply with the following:
50 % < V < 125 % of the rated voltage V
N
80 % < f < 110 % of the rated frequency f
N
(after time monitoring expires, the synchronization will be aborted)
B
Dead bus
Generator circuit breaker
- Parameter "Dead bus GCB ON"
- Synchronization voltage must be less then 5% of the rated voltage
- Generator voltage and frequency must be within the configured limits of the dead
bus start
C1
Automatic no-load control
- Parameter "Automatic no-load control ON"
- The frequency controller complies with the following conditions:
Generator voltage > 50 % of the rated voltage V
N
- The voltage controller complies with the following conditions:
Generator frequency > 90 % of the rated frequency f
N
C
No-load operation
- for f control:
Generator voltage > 50 % of rated voltage V
N
- for V control:
Generator frequency > 90 % of rated frequency f
N
D
Isolated operation
- Generator voltage > 50 % of rated voltage V
N
- For voltage controller: Parameter "Voltage controller in no-load operation ON"
- For frequency controller: Parameter "Frequency controller in isolated operation
ON".
E
Shut down
- Parameter "Shut down ON"
F
Load/var sharing control
- for load sharing:
Parameter "Load sharing ON"
- for var sharing:
Parameter "var sharing ON"
Table 4-3: Operating conditions - status of measuring inputs and configuration
