ABB REG650 Commissioning Manual page 65

1MRK 502 049-UEN A
Commissioning manual
Where I = U / √(3) / ForwardX = 14107 A. The actual CT ratio must be applied
gen
to this primary current so that correct value of the secondary injected current can
be calculated.
Expected results: As shown in
commands in zone 2 (TRIPZ2) with 1 Hz.
0.8
0.6
0.4
-
X-line
→ ^ ^ ^ ^ ^ ^ ^
0.2
-
determined
-
by the
- -
0
setting
-
-
ReachZ1
-
Zone 1
Zone 1
-0.2
-0.4
Trajectory of the Z(R, X) for
I = I(50Hz) + I(51Hz)
is identical, but the direction
-0.6
of the rotation is the opposite
-0.8 -0.6
IEC10000141 V1 EN
Figure 13: Trajectory of the impedance Z(R, X) for the injected current with
two components: a 50 Hz component and a minor component
with 49 Hz
Figure 14 for the test with 49 Hz. Periodical trip
X
RE
-
- -
-
-
-
A = ForwardX → - - - - -
- - - -
- - -
-
- - -
-
Zone 2
- - -
-
- -
- -
-
- -
-
- -
-
- -
- -
- -
^ ^ ^ ^ ^ ^ ^
- -
- -
- - Ztr
- -
- -
OOS relay
- -
- -
lens →
- -
- -
-
120°
- -
-
- -
- -
-
- -
-
- - - - -
-
- -
- - -
- - - -
- - -
-
- - -
-
-
-
- -
-
SE
-0.4 -0.2 0
Real part (R) of Z in Ohms
Section 6
Testing functionality
trajectory
Z(R, X)
-
-
-
-
-
- -
-
- -
-
- -
- - -
- -
-
- -
-
- -
- -
-
- -
-
- -
^ ^ ^ ^
-
- -
- -
- -
- -
-
- -
- -
-
- -
-
- -
- -
-
- -
-
- -
- - -
- -
-
-
Trajectory of the Z(R, X) for:
-
-
I = I(50Hz) + I(49Hz).
-
-
-
I(50Hz) determines point A;
I(49Hz) makes Z(R, X) rotate
0.2 0.4 0.6 0.8
IEC10000141-1-en.vsd
R
1
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