7 Parameters of LCD Operation Manual
32
Parameter Description
Unavailable
LVRT tolera vol min(V)
Refer to Fig. 8-1Lower voltage withstand requirements, U2
Unavailable
LVRT T1(ms) Refer to Fig. 8-1Lower voltage withstand requirements, T1
LVRT T2(ms) Refer to Fig. 8-1Lower voltage withstand requirements, T2
LVRT dynamic Kf factor
Ratio of reactive power compensation and voltage dropping
depth during LVRT
HVRT switch Enable or disable the HVRT switch
HVRT normal vol max(%)
Refer to Fig. 8-2High voltage withstand requirements, U2
Unavailable
HVRT tolera vol max (%)
Refer to Fig. 8-2High voltage withstand requirements, U1
Unavailable
Tmax-HVRT normal(ms) Refer to Fig. 8-2High voltage withstand requirements, T2
Tmax-HVRT tolera(ms) Refer to Fig. 8-2High voltage withstand requirements, T1
Active Islanding Enable or disable the Anti-islanding function
I leakage-pro(A) Set the current leakage protection value
Anti-PID mode
If Anti-PID mode is enabled, you may set the Anti-PID mode
(Invalid, Suppression and Repair)
Ins monitor measure time (S) Set the insulation monitor measure time
Ins monitor protect
threshold(K)
Set the threshold value of the insulation monitor resistance
Setting ranges and default values of the protective parameters are described in the following
table.
Parameter Range Default
Ⅰ_Vgrid-max(V)
346.5~472.5 362
Ⅱ_Vgrid-max(V)
346.5~472.5 409.5
Ⅰ_T-Vhigh trip(ms)
40~600000 2000
Ⅱ_T-Vhigh trip (ms)
40~600000 100
Recover_Vgrid-max(V) 346.5~472.5 346.5
Ⅰ_Vgrid-min(V)
31.5~283.5 252
Ⅱ_Vgrid-min(V)
31.5~283.5 157.5
Ⅰ_T-Vlow trip(ms)
40~600000 2000
Ⅱ_T-Vlow trip (ms)
40~600000 100
Recover_Vgrid-min(V) 31.5~283.5 283.5
Ⅰ_Fgrid-max((Hz)
50.2~53/60.2~63 50.5/61.5
Ⅱ_Fgrid-max((Hz)
50.2~53/60.2~63 50.5/62
Ⅰ_T-Fhigh trip(ms)
40~600000 160
Ⅱ_T-Fhigh trip (ms)
40~600000 160
Recover_Fgrid-max(Hz) 50~53/60~63 50.2/60.2
Ⅰ_Fgrid-min((Hz)
46~50/56~60 47.5/57.5
Ⅱ_Fgrid-min((Hz)
46~50/56~60 47.5/57.5
Ⅰ_T-Flow trip(ms)
40~600000 160
Ⅱ_T-Flow trip (ms)
40~600000 160
Recover_Fgrid-min((Hz) 46~50/56~60 49.5/59.9
LVRT switch Enable/Disable Enable
LVRT normal vol min(V) 270~283.5 283.5
LVRT tolera vol min(V) 15.7~126 63
LVRT T1(ms) 500~1500 1000
LVRT T2(ms) 2500~3500 3000
LVRT dynamic Kf factor 0~3 1.5
HVRT switch Enable/Disable Enable