Beltrame S2014, Руководство пользователя

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5.4.3 Maximum excitation current: Over Excitation limiter
The limit of maximum excitation current operates a limitation on the maximum excitation current.
The limit works in order to avoid to overtake the P.001 value, and if the excitation current remains on P.001 for longer than P.032, the AVR
reduce the excitation current to 102%. If the excitation current goes in the area between P.000 and P.001, the AVR calculate the i*t integral
and once P.001xP.032 is reached, the AVR reduces the excitation current to P.000.
5.4.4 Minimum capability: Q- limiter
The curve of minimum capability represents the reactive power limit absorbed by the machine. It is determined by interpolating 5 data:
Parameter Description (short) Description
P.100
P.130
P.131
Gen. rated voltage
Gen. V/f Min freq
Gen. V/f Max freq
Generator rated voltage [V]
Generator minimum frequency ramp (Hz)
Generator maximum frequency ramp (Hz)
P.132 V/f slope Generator V/f slope
P.132 V/f slope Generator V/f slope
Parameter Description (short) Description
P.160
P.161
P.162
Q – lim @ P 0%
Q – lim @ P 25%
Q – lim @ P 50%
Limit Q- a P=0%
Limit Q- a P=25%
Limit Q- a P=50%
P.163
P.164 Q – lim @ P 75%
Q – lim @ P 100%
Limit Q- a P=75%
Limit Q- a P=100%
BELTRAME
CENTRO SERVIZI ENERGIA
(%)
P.001
P.000
D.000
P.032
(S)
Motor
Generator
Q+ (var)
overexcited underexcited
Q-
P (w)
100%
100%
75%
75%
50%
50%
25%
25%
0%