Verifying The Settings - ABB REG670 Commissioning Manual

1MRK 502 073-UEN A
13.4.7.1
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
Commissioning manual
Testing functionality by secondary injection

Verifying the settings

Distance protection zones
While measuring operating characteristics, keep the current constant. Keep the
current as close as possible to its rated value or lower, however make sure it is
higher than 30% of the rated current.
If the measurement of the operating characteristics runs under constant voltage
conditions, ensure that the maximum continuous current in an IED does not exceed
four times its rated value.
To verify the zone 1 mho characteristic, at least two points must be tested.
X
P3
Z1Rev
P4
IEC11000312 V2 EN-US
Figure 51: Proposed four test points for phase-to-phase fault
Where,
Z1Fwd is the forward positive sequence impedance setting for zone 1
Z1Rev
is the reverse positive sequence impedance setting for zone 1
LineAngle
is the Impedance angle for phase-to-phase fault in degrees
P1
Z1Fwd
P2
LineAngle
IEC11000312-2-en.vsd
Section 13
GUID-202C5606-5F12-4C00-A12F-02A33EB571D9 v1
GUID-69610335-7C97-4134-8A47-05501AB5C620 v3
R
169