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5. FUNCTIONS DESCRIPTION
5.1 Soft Start
Setting the following parameters, it is possible to set up the excitation ramp of the Generator (Output Voltage vs Time):
Parameter
Description (short)
Description
P.100
R.002
Gen rated voltage
Ramp slope
Generator rated voltage [V]
Ramp slope [%/s]
The slope of the ramp is controlled by the V/Hz limiter.
The soft start function is working only in the AVR mode.
5.2 Compensation and Droop functions
The compensation function (K> 0) is used in order to reduce the voltage drop created by the possible presence of a power transformer
mounted after the Generator.
The ‘droop’ function (K<0) is recommendable in case of operation with more generators in parallel. It applies a machine output voltage
reduction according to the reactive power output. The “droop” function reduces the output voltage according the reactive power output
(higher is the reactive power, lower will be the output voltage).
Compensation and droop functions require:
- AVR mode
- alternator current reading
- digital input 3 programmed as I002= 4 (52G Droop regulation)
Parameter
Description (short)
Description
P.400
Voltage comp K
Voltage comp [%]
Machine voltage (%)
P101
P100
(S)
Machine voltage
(%)
Kq = 1,5%
Kq = -1,5%
Reactive power
(%)
100%
inductive
100%
capacitive
BELTRAME
CENTRO SERVIZI ENERGIA
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