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I.L. 40-385.1B
Step 34.
Increase I
A
PLAY SELECT pushbutton and change to the
metering (VOLTS/AMPS/ANGLE) mode. Press
FUNCTION RAISE pushbutton until the LOI dis-
play is shown. The value should indicate "YES".
Suddenly turn OFF V
not be tripped within 500 ms. It may operate after
500 ms if a delta I is detected by the relay.
Change the setting of LOIB from YES to NO.
1.1.13 Output Contact Test
Step 35. The purpose of this test is to check the
hardware connections and relay contacts. It is
designed for a bench test only. Remove JMP3
(spare on the Microprocessor PC Board) and
place it in the JMP5 position. Open the red-han-
dled FT switch (Trip and Breaker Failure Initiate)
in order to avoid the undesired trip.
NOTE: The red-handled FT switch (#13) controls
the dc supply of BFI, RI2 and the option-
al RI1 relays. In order to test these relays
in the system, the external wiring should
be disconnected to avoid undesired re-
closing or trip. For relays without FT
switches, do not perform the Output
Contact tests using the relay system.
Change the LED mode to "TEST" and select the
tripping function field and the desired contact in
the value field. Push the ENTER button; the EN-
TER LED should be "ON". The corresponding re-
lay should operate when the ENTER button is
pressed. The following contacts can be tested:
• TRIP
• BFI
• RI1
(optional)
• RI2
• RB
• AL1 (with three balanced voltages applied)
• AL2
• GS
• SEND (optional)
• STOP (optional)
Remove JMP5 and replace it on JMP3.
Step 36. This completes the basic Acceptance
Test for the MDAR Non-Pilot system. (See sub-
6-8
to 1.5A. Depress the DIS-
voltage; the relay should
A
sequent segment for optional Single Pole Trip
and Out-of-Step Block tests.)
1.2
PILOT PERFORMANCE TESTS
To prepare the MDAR relay assembly for Pilot Ac-
ceptance Tests, connect the MDAR per Figure 6-1,
Configuration 1.
1.2.1
Front Panel Check
Step 1.
Repeat steps 1 thru 6 in Non-Pilot Accep-
tance Tests, except that in step 6, set values are
in accordance with Table 6-3.
Step 2.
Change the value settings, in Table 6-3,
as follows:
• PLT
YES
• Z3FR REV
• ZIP
OUT
• ZIG
OUT
• PLTG
6.0
The RBSW is always set at "YES" internally, re-
gardless of the display shown by the remote
WRELCOM software.
NOTE: When the dc voltage is applied to TB5
terminals, check jumper position on In-
terconnect module for the appropriate
selection.
Connect a rated dc voltage to PLT/ENA terminals
TB5/9(+) and TB5/10(-).
1.2.2
Blocking (BLK) Scheme
Step 3.
Change the STYP setting to BLK. Apply a
rated dc voltage to RCVR #1 terminals TB5/7(+)
and TB5/8(-). Check the metering mode for RX1
= YES. Apply an AG fault as shown in Step 10 of
the Non-Pilot Acceptance Test (i.e., V
and I
= 4 Amps). The trip A contacts should not
a
be closed. The CARRY SEND should be "open"
and the CARRY STOP should be "closed".
Step 4.
Remove the dc voltage from RCVR #1
and apply AG fault. Trip A contacts should be
"closed" and the target should show "PLTG AG".
Change the LED mode to "TEST" and select the
"RS1" function. Push the ENTER button; the EN-
TER LED should be "ON". Repeat Step 4 with the
ENTER button depressed. The relay should not
trip.
PLTP
6.0
•
Z3P
6.0
•
Z3G
6.0
•
• T3P
BLK
• T3G
BLK
= 30 volts
a
(5/92)
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