Mdar With Out-Of-Step Block Option - ABB REL-300 Instruction Leaflet

I.L. 40-385.1B
-8 -7 -6 -5 -4 -3
INPUTS: Va = 40 ∠0˚, Vb = 40 ∠-120˚, Vc = 40 ∠120˚
SETTINGS: PANG = 75˚, GANG = 75˚, ZR = 3
ABC FAULT WITH FAULT ANGLE OF 45˚
6-18
jX
22
21
20
19
18
17
16
15
14
13
12
11
Z1 = 10 ∠−75˚
10
9
8
7
6
5
4
3
2
45˚
75˚
1
-2 -1 1 2 3
RT
Figure 6-5. MDAR with Out-of-Step Block Option
Z2 = 20 ∠−75˚
4 5 6 7 8 9 10
RU
Z = 17.3 ∠ -45˚
(I = 2.35 Amps)
ZU = 16 ∠-45˚
(I = 2.5 Amps)
Z = 8.7∠-45˚
(I = 4.7 Amps)
ZT = 8.7∠-45˚
(I = 5.0 Amps)
R
11 12 13 14
Sub 1
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