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6 FUNCTIONAL TESTS (USER SETTINGS)
6.2 MEASURING UNIT TESTS
This test has fixed settings that are not user selectable. See Section 5.1.2: T1 – FAULT DETECTOR TEST on
page 5–2 for testing with factory settings.
1. Protection Settings:
CURSUPVISN
(501)
IT_PICKUP = [________] Amps
OVERCURRENT
(601)
50 = NO
(605)
50G = NO
(610)
51G = NO
LINEPICKUP
(801)
LINEPICKUP = NO
where I
is set as follows:
T
I
I
, I
, or I
=
T
A
B
C
The test current, I
, is single phase and applied to I
op
than or equal to I
.
T
2. Connect the relay as shown in Figure 4–3: PHASE TO GROUND TEST CONNECTIONS on page 4–16.
3. Set the relay into test mode 18 (IT Detector). The LUI should display
IT DETECTOR ON
4. Set the voltages to zero.
5. Set the level of I
to I
op
Lower I
to I
– 0.1 = [________] A rms, at which point the A1 contact should open.
op
T
6. Reduce I
to 0 A.
op
1. Protection Settings:
CURSUPVIS
(502)
IB_PICKUP = [________] Amps
OVERCURRENT
(601)
50 = NO
(605)
50G = NO
(610)
51G = NO
LINEPICKUP
(801)
LINEPICKUP = NO
GE Power Management
+ 0.1 = [________] A rms and apply to the relay. The A1 contact should close.
T
LPS-O Line Protection System
6.2 MEASURING UNIT TESTS
6.2.1 T1 – FAULT DETECTOR TEST
6.2.2 T2 – IT TRIP SUPERVISION TEST
. Thus, the LPS-O should pick up when I
A
6.2.3 T3 – IB BLOCKING SUPERVISION TEST
is greater
op
6
6-
3
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