Frt - Kaco blueplanet 92.0 TL3 US Manual

10 | Specifications
Country- Men Display/
spec. Set- u Setting
tings level
Threshold Area lower
limit [Hz]
40 – 50 [Hz] /
[%/Hz] /
Threshold Area upper
limit [Hz]
50 – 60 [Hz] /
[Hz] / 0.01
P(f) Deaktivierungszeit
0 – 6,000,000 [ms] /
0 [ms]
P(f) intentional delay
0 – 5,000 [ms] /
[ms] 1
P(f) settling time
200 – 2,000 [ms] /
200 [ms]
Output gradient limita-
1 2 3 4 4
tion increase & Output
gradient limitation de-
crease
0 – 65,534 [%/Min] /
65,534 [%/min] /
1
P(f) deactivation gradi-
ent
1 – 65,534 [% S
min] /
min] /
10.3

FRT

Dynamic grid support (Fault Ride Through)
A generator plant's ability to remain immune to voltage drops and voltage spikes in the supply system is a key element in
establishing a reliable energy supply. Immunity to interference ensures that brief disruptions do not result in a loss of
generation capacity in a larger range of an interconnected grid. Grid support by a fast feeding of residual current also lim-
its the spatial extent of the incident.
With its dynamic grid support by way of immunity, the device has this characteristic. The ability to remain on the grid is
particularly relevant. The protective settings also determine the device's ability to remain on the grid or not. Protective
settings take the upper hand over the capacity of immunity to interference.
Page 92
Action in this menu/meaning
Only evaluated in mode 1.
The function is deactivated if the frequency returns to the deactivation
47.5 range and remains in this range for the duration of the deactivation
0.01 time.
50.5
Only evaluated in mode 1.
The function is disabled if the frequency returns to the range between
1 the minimum and maximum deactivation threshold and remains within
this range for the duration of the deactivation time.
The activation of the function based on the activation threshold is de-
layed by the configured time.
0
Note 1: This function is considered to be critical for the stability of the
transmission grid and is therefore forbidden by many domestic grid con-
nection directives.
Note 2: This function is stipulated as a requirement by some domestic
grid connection directives in order to prevent any negative impact on is-
land detection. However, P(f) has no negative impact on KACO's en-
hanced island detection.
Determines the dynamic behaviour in the event of a change in the ac-
tive power limit. In the event of a change in frequency, the active power
is altered subject to a PT-1 characteristic curve using a settling time of 5
1
Tau.
The settling time is overlaid with the increasing and decreasing gradient.
Specifies the dynamic response on changing the active power for power
increase and decrease. With a voltage change, the active power is
changed with the specified gradient.
Note: The gradient is overlaid with the settling time.
If the available power is above the actual output at the time of deactiva-
tion, the power increase back to the maximum power is limited. The
limitation is implemented by an absolute power limitation that in-
/
lim
creases with a continuous gradient up to the maximum power. The ac-
10 [% S /
lim
tual power of the inverter may vary freely below this limit due to a pos-
1
sible fluctuation in the available power or the target value, but at no
time increases above the absolute power limit.
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