Low Voltage Fault Ride Through; Dc-Injection - Fronius SnapINverter Serviceanleitung

On
Softstart Gradient
for setting the gradient for the startup ramp
0.01 - 100 %/s
Low Voltage Fault

"Low Voltage Fault Ride Through"

Ride Through
Function for bridging a grid voltage drop
IMPORTANT! A detailed explanation of the settings can be found in the "Advanced Grid
Features" section under: LVFRT - Dynamic grid backup during temporary drops in grid volt-
age.
Selection options
LVFRT On/OFF
DeadBand Low
DeadBand High
LVFRT K-Factor

DC-Injection

DC-I. InnerLimit Mode
deactivates/activates the lower set limit values for DC injection
Selection options:
DC-I I.L. Absolute:
DC-I I.L. Relative:
DC-I I.L. TripTime:
DC-I. OuterLimit Mode
deactivates/activates the lower set limit values for DC injection
Selection options:
78
Function activated;
The SoftStart gradient is applied whenever start up is ener-
gised.
LVFRT On/OFF / DeadBand Low / DeadBand High / LVFRT K-
Factor
for activating and deactivating the dynamic reactive current feed
during a voltage drop
for entering the lower limit value for the reactive current feed
0 - 100 %
for entering the upper limit value for the reactive current feed
100 - 200 %
for entering the K-Factor (= increase in characteristic that de-
fines the reactive current feed during a voltage drop)
0 - 10
OFF / ABSOLUTE / RELATIVE
Inner absolute DC injection limit value
0 - 10 A
Inner relative DC injection limit value based on the device nom-
inal current
0 - 10 %
Trip time in seconds for violation events when the inner abso-
lute and relative limit value is exceeded
0 - 10 s
OFF / ABSOLUTE / RELATIVE