ABB RET670 Applications Manual page 218

Section 3
IED application
212
2 2
I
L
0 0
-2 -2
0 0 0.02 0.02 0.04 0.04 0.06 0.06
5 5
I
V
0 0
-5 -5
0 0 0.02 0.02 0.04 0.04 0.06 0.06
50 50
U
C
0 0
-50 -50
0 0 0.02 0.02 0.04 0.04 0.06 0.06
0 0
X
-20 -20
C
-40 -40
0 0 0.02 0.02 0.04 0.04 0.06 0.06
IEC06000597 V1 EN
Figure 82: TCSC wave forms presented in capacitive boost mode for a typical
50Hz system
The apparent impedance of the TCSC (the impedance seen by the power system) can
typically be increased to up to 3 times the physical impedance of the capacitor, see
figure 83. This high apparent reactance will mainly be used for damping of power
oscillations.
0.08 0.08 0.1 0.1 0.12 0.12 0.14 0.14 0.16 0.16 0.18 0.18
0.08 0.08 0.1 0.1 0.12 0.12 0.14 0.14 0.16 0.16 0.18 0.18
0.08 0.08 0.1 0.1 0.12 0.12 0.14 0.14 0.16 0.16 0.18 0.18
0.08 0.08 0.1 0.1 0.12 0.12 0.14 0.14 0.16 0.16 0.18 0.18
en06000597.vsd
1MRK504116-UUS C
0.2 0.2
0.2 0.2
0.2 0.2
0.2 0.2
Application manual