DOCR-070645-E
Page 70 of 102
1.3
1.25
1.2
1.15
1.1
1.05
1
2 4 6 8 10 12 14 16 18 20 22
1 2
3
4
5，6,7,8
Through
Trip
V
o
lt
a
g
e
N
*r
a
te
d
Time/S
Figure 4.13 HVRT graph
Table 4.4 LVRT and HVRT parameters
LVRT
Parameter name
Description
Setup range (lower limit,
default & upper limit)
LVRTVolt (1,2)
Threshold value of Low voltage ride
through(first or second point)
{0%, 0%, 100%}
{0%, 0%, 100%}
LVRTTime(1,2)
Time of Level Low voltage ride
through(t first or second point)
{0, 0, 655}
{0, 1.2, 655}
LVRTVolt (3,4)
Threshold value of Low voltage ride
through(third or fourth point)
{0%, 45%, 100%}
{0%, 45%, 100%}
LVRTTime(3,4)
Time of Level Low voltage ride
through(third or fourth point)
{0,1.2, 655}
{0, 10.5, 655}
LVRTVolt (5,6)
Threshold value of Low voltage ride
through(fifth or sixth point)
{0%, 65%, 100%}
{0%, 65%, 100%}
LVRTTime(5,6)
Time of Level Low voltage ride
through(fifth or sixth point))
{0, 10.5, 655}
{0, 20.5, 655}
LVRTVolt (7,8)
Threshold value of Low voltage ride
through(seventh or eighth point)
{0%, 83%, 100%}
{0%, 83%, 100%}
LVRTTime(7,8)
Time of Level Low voltage ride
through(seventh or eighth point)
{0, 20.5, 655}
{0, 20.5, 655}
HVRT
HVRTVolt(1,2)
Threshold value of high voltage ride
{100%, 125%, 135%}
V
ol
ta
ge
P
U
(pe
r uni
t)
