Deif Multi-line 2 Designers Reference Handbook page 134

AGC
To avoid nuisance trips caused by reverse power the synchronising settings can
be set up with a positive slip frequency.
FUEL INDEX
0%
100%
FUEL INDEX
0%
100%
Illustration 1, POSITIVE slip frequency
FUEL INDEX
0%
100%
FUEL INDEX
0%
100%
Reverse power
Illustration 2, NEGATIVE slip frequency
Adjustments
The dynamic synchroniser is selected in 2010 Synchronisation type
in the control setup and is adjusted in 2020 Dynamic synchronisation
Setting Description
2021 f Maximum slip frequency.
MAX
2022 f Minimum slip frequency.
MIN
2023 U Maximum voltage differ-
MAX
rence (+/- value).
2024 t Generator breaker closing
GB
time.
2025 t Mains
MB
time.
DEIF A/S
P
G1
Gen1
P
Gen2
G2
P
G1
Gen1
P
Gen2
G2
Comment
Adjust the maximum positive slip frequency where
synchronising is allowed.
Adjust the maximum negative slip frequency where
synchronising is allowed.
The maximum allowed voltage difference between
the busbar/mains and the generator.
Adjust the response time of the generator breaker.
breaker closing Adjust the response time of the mains breaker.
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Page 134 of 168