ABB 615 Series - Page 667

Time in ms
Vn
Voltage
xVn
TRIP
PICKUP
(Recovery time 2,
Voltage level 2)
Voltage level 1 = 0.2Vn
Point of
fault
Voltage pickup value = 0.9Vn
500
0.8Vn
0
1500 10000
(Recovery time 1,
Voltage level 1)
(Recovery time 3,
Voltage level 3)
GUID-6C33D2DC-E569-4008-B240-8A4BCD096603 V1 EN
Figure 329: Low voltage ride through example curve A
Vn
TRIP
PICKUP
(Recovery time 1,
Voltage level 1)
(Recovery time 2,
Voltage level 2)
(Recovery time 4,
Voltage level 4)
(Recovery time 5,
Voltage level 5)
Voltage level 1 = 0.0Vn
0.7Vn
Voltage pickup value = 0.9Vn
Time in ms
Point of
fault
150
0
700 3000
1500
(Recovery time 3,
Voltage level 3)
Voltage
xVn
GUID-234F7C66-9EC0-42B3-8B8E-E370B4305DB1 V1 EN
Figure 330: Low voltage ride through example curve B
Table 565: Settings for example A and B
Settings
Curve A Curve B
Voltage start value 0.9 · Un 0.9 · Un
Active coordinates 3 5
Voltage level 1 0.2 · Un 0 · Un
Recovery time 1 500 ms 150 ms
Voltage level 2 0.8 · Un 0.7 · Un
Recovery time 2 1000 ms 150 ms
Voltage level 3 0.9 · Un 0.7 · Un
Recovery time 3 10000 ms 700 ms
Table continues on next page
1MAC059074-MB A Section 4
Protection functions
615 series ANSI 661
Technical Manual