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8 Settings
"Active/reactive power" menu area
8.5.7 Q (V) – Regulating reactive power via volt-
age
These parameters are set according to the
requirements of the selected country. Changing
these parameter settings can invalidate the type
approval of the unit. Change this setting only
after consultation with Delta customer service.
Overview
This function allows you to regulate the reactive power via the
voltage.
This function is only available for medium-voltage grids.
V
2i
Case 1: Grid Voltage > Nominal Voltage
When the grid voltage drops below the lower voltage limit V1s the
inverter begins feeding inductive reactive power.
If the Delay time is greater than 0 (zero), the inverter waits for
the time specified here to see if the grid voltage falls below V1s
again, before feeding capacitive reactive power.
When the grid voltage increases again, the inductive reactive
power is increased according to the ramp specified by the char-
acteristic curve.
When the grid voltage exceeds the upper voltage limit V2s the
inductive reactive power regrid at the level specified in Qs Limit.
Case 2: Grid Voltage < Nominal Voltage
When the grid voltage drops below the upper voltage limit V1i
the inverter begins feeding capacitive reactive power.
If the Delay time is greater than 0 (zero), the inverter waits for
the time specified here to see if the grid voltage rises above V1i
again, before feeding capacitive reactive power.
When the grid voltage increases again, the capacitive reactive
power is increased according to the ramp specified by the char-
acteristic curve.
When the grid voltage drops below the lower voltage limit V2i
the capacitive reactive power regrid at the level specified in
Qi limit.
Setting options
Parameter
Mode
118
V
1i
V
V
1s
2s
Description
Switch the function on and off.
V
Installation and Operation Manual for Power Inverter RPI M6A M8A M10A EU V4 EN 2020-07-13
Setting range
ON | OFF
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