CPS SCA60KTL-DO/US-480 - Page 101

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Table 6-5 LVRT Parameters (IEEE1547, Rule21, and ISO-NE)
LVRT Setting Range
Parameter
Name
Description
IEEE1547 Rule21 ISO-NE
Min Default Max Min Default Max Min Default Max
LVRTVolt
(1,2)
Threshold value of
Low voltage
ride through (1
st
& 2
nd
point)
0
0
0
0
100
100
0
0
0
0
100
100
0
0
0
0
100
100
LVRTTime
(1,2)
Time of Level Low voltage
ride
through (1
st
& 2
nd
point)
0
0
0
1.20
655
655
0
0
0
1.20
655
655
0
0
0
0.16
655
655
LVRTVolt
(3,4)
Threshold value of
Low voltage
ride through (3
rd
& 4
th
point)
0
0
45
45
100
100
0
0
50
50
100
100
0
0
30
45
100
100
LVRTTime
(3,4)
Time of Level Low voltage
ride
through (3
rd
& 4
th
point)
0
0
1.20
10.50
655
655
0
0
1.20
10.50
655
655
0
0
0.16
0.21
655
655
LVRTVolt
(5,6)
Threshold value of
Low voltage
ride through (5
th
& 6
th
point)
0
0
65
65
100
100
0
0
70
70
100
100
0
0
45
65
100
100
LVRTTime
(5,6)
Time of Level Low voltage
ride
through (5
th
& 6
th
point)
0
0
10.50
20.50
655
655
0
0
10.50
20.50
655
655
0
0
0.37
0.37
655
655
LVRTVolt
(7,8)
Threshold value of
Low voltage
ride through (7
th
& 8
th
point)
0
0
83
83
100
100
0
0
88
88
100
100
0
0
65
88
100
100
LVRTTime
(7,8)
Time of Level Low voltage
ride
through (7
th
& 8
th
point)
0
0
20.5
20.5
655
655
0
0
20.5
20.5
655
655
0
0
3.05
3.25
655
655