KACO Powador XP500-XP550-HV TL outdoor User Manual
Page 86
Operating Instructions Powador XP500/550-OD-TL
Page 87
P a r a m e t e r s
Figure 61: Grid Voltage 60% Drop
The above graphs show the change of electrical values during FRT (Fault Ride Through) control, and the detailed
description for each section is as follows.
Section 1
•
If Grid Voltage drops below standard FRT value (0.9
P.U
) set by parameter, inverter will convert its mode to
FRT.
•
The occurrence of Over Current is decided by the slope and depth, and if when over current occurs, inverter
will stop PWM Modulation for one cycle.
•
Inverter will infuse the reactive power to grid according to parameter setting.
•
Since the reactive power value is proportional to the parameter setting value, you can infuse reactive power
to grid as much as possible.
Section 2
•
Infuse active power and reactive power to grid according to parameter setting.
Section 3
•
The occurrence of Over Current is decided by the slope and depth, and if when over current occurs, inverter
will stop PWM Modulation for one cycle.
•
Infuse active power and reactive power to grid according to parameter setting.
Section 4
• If Grid voltage rises above standard FRT value (0.9
P.U
) set by parameter, inverter will convert its mode to
normal and stop reactive current infusion.