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5 FUNCTIONAL TESTS (FACTORY SETTINGS)
1.
Setting:
Z4DISTANCE
(405)
Z4GRND = YES
CURSUPVISN
(502)
IB_PICKUP = 0.2 (0.04) A
2.
Connect the relay as shown in Figure 4–3: PHASE TO GROUND TEST CONNECTIONS on page 4–12.
3.
Set the relay into test mode 35 (IB Detector). The LUI should display IB DETECTOR ON
4.
Set the voltages as follows:
VA = 67 V rms ∠0°
VB = 67 V rms ∠–120°
VC = 67 V rms ∠+120°
5.
Set I
to 0.30 (0.06) A rms and apply to the relay. The A1 contact should close. Lower I
op
which point the A1 contact should open.
6.
Reduce I
to 0.
op
1.
Setting:
Z2DISTANCE
(204)
Z2GROUND = YES
(205)
Z2GRDCHAR = GDOC
CURSUPVIS
(503)
IPT_PICKUP = 0.5 (0.1) Amps
2.
Connect the relay as shown in Figure 4–3: PHASE TO GROUND TEST CONNECTIONS on page 4–12.
3.
Set the voltages as follows:
VA = 55 V rms ∠0°
VB = 67 V rms ∠–120°
VC = 67 V rms ∠+120°.
4.
Set the relay into test mode 36 (Ground Directional Trip). The LUI should display GRD DIR TRIP ON
, to 0.70 (0.14) A rms ∠–85°, and apply to the relay. The A1 contact should close. Lower I
Set IA, the current of I
5.
op
0.40 (0.08) A rms, at which point the A1 contact should open.
Reduce I
6.
to 0.
op
1.
Settings:
CURSUPVIS
(504)
IPB_PICKUP = 0.25 (0.05) A
2.
Connect the relay as shown in Figure 4–3: PHASE TO GROUND TEST CONNECTIONS on page 4–12.
Set VA to 55 V rms ∠0°, VB to 67 V rms ∠-120°, and VC to 67 V rms ∠+120°.
3.
4.
Set the relay into test mode 37 (Ground Directional Block). The LUI should display GRD DIR BLK ON
, to 0.40 (0.08) A rms ∠–265° and apply to the relay. The A1 contact should close. Lower I
5.
Set IA, the current of I
op
0.15 (0.03) A rms, and the A1 contact should open.
6.
Reduce I
to 0 A.
op
GE Power Management
5.2.4 T4 – GROUND DIRECTIONAL TRIP TEST, IPT + NT
5.2.5 T5 – GROUND DIRECTIONAL BLOCK TEST, IPB + NB
ALPS Advanced Line Protection System
5.2 MEASURING UNIT TESTS
5.2.3 T3 – IB BLOCKING SUPERVISION TEST
to 0.10 (0.02) A rms, at
op
5
to
op
to
op
5-3
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