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5. FUNCTIONS DESCRIPTION
5.1 So� Start
Se�ng the following parameters, it is possible to set up the excita�on ramp of the Generator (Output Voltage vs Time):
The voltage ramp is controlled also by the V/Hz limiter (see 5.2)
5.2 V/Hz Limiter (Under-frequency protec�on Effects)
The ramp of the generator voltage is influenced by the frequency. The V/Hz limiter is always ac�ve in order to avoid overflux situa�on. It
reduces the voltage when the frequency (the speed) drops below the knee point.
Parameter
Description (short)
Description
P.100
P.101
R.002
Gen rated voltage
Max Gen voltage
Ramp slope
Generator rated voltage [V]
Generator maximum voltage [%]
Ramp slope [%/s]
Parameter
Description (short)
Description
P.100
P.101
P.130
Gen rated voltage
Max Gen voltage
Gen V – Min Frequency
Generator rated voltage [V]
Generator maximum voltage [%]
Star�ng of the excita�on process (Hz)
P.131
P.132
P.133
Gen V – Max Frequency
Gen V/Hz slope
Gen V/Hz slope over
Below this frequency the voltage starts to decrease (knee point)
Slope of the voltage vs frequency line from P.130 to P.131
Slope of the voltage vs frequency line over P.131 (with P.101 limit)
BELTRAME
CENTRO SERVIZI ENERGIA
Machine voltage (%)
P101
P100
(S)
Machine voltage (%)
Gen. rated V
P. 132
min
freq
max
freq
Gen rated
freq
(Hz)
Содержание S 2022
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