ABB REL-300 Instruction Leaflet page 114

I.L. 40-385.1B
Apply an AG fault as shown in Step 5, with I
2 ∠−75°. The relay should not trip. Apply a rated
dc voltage to terminals TB5/3 (+) and TB5/4 (-).
Repeat the test. The relay should trip with a tar-
get of CIF. Remove the 52b voltage and set CIF
to STUB for the next test.
Step 8. Stub Bus Protection (SBP)
Check the blue jumpers on the Interconnect mod-
ule. Jumpers (JMP 7 and JMP 9) should be "IN".
JMP 13 should be at the rated voltage position.
Apply a balanced 3-phase voltage (70 Vac and I
= 2A) using any angle. The relay should not trip.
Apply a rated voltage to the SBP terminals: TB5/
13(+) and TB5/14(-). The relay should trip with a
target of CIF. Change jumpers from JMP 7 and 9
back to JMP 8 and 10; if the Stub Bus Protection
is not used. Reset CIF to "NO".
2.1.4 Input Transformer (I P ) Check
Step 9. Change the settings from Table 6-1 (or
Table 6-3) as follows:
ZIP = OUT
ZIG = OUT
DIRU = DUAL
GBCV = CO-8
GBPU = 0.5
GDIR = YES
GTC = 24
For a dual polarizing ground directional unit (DI-
RU = DUAL) test, connect the test circuit shown
in Figure 6-4. Apply I
12(+) and 11(-), and apply a balanced 3-phase
voltage (70 Vac) to Va, Vb, Vc, and Vn. Apply Ia
= 4A to terminals 6 (+) and 5 (-). The relay should
trip at the following angles:
• -3°
• -90° (± 87°)
• -177°
The relay should not trip at the following angles:
• +3°
• +90° (± 87°)
• +177°
Change the settings back to Table 6-1 or 6-3.
6-12
= 1.0A ∠−90° to terminals
P
= 2.1.5 Output Contact Test
A
Step 10. The purpose of this test is to check the
hardware connections and relay contacts. It is
designed for a bench test only. Remove JMP 3
(spare on the Microprocessor PC Board) and
place it in the JMP 5 position.
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
A
pressed. The following contacts can be tested:
• TRIP
• BFI
• RI1 (optional)
• RI2
• RB
• AL1 (with 3 balanced voltages)
• AL2
• GS
• SEND (optional)
• STOP (optional)
Remove JMP 5 and place it on JMP3.
2.2 Pilot Maintenance Test
Connect the MDAR per Figure 6-1, Configuration 1.
2.2.1 Basic Function Test
Step 1. Repeat Step 1 thru 10 in the Non-Pilot
Maintenance Test (2.1.1 thru 2.1.5).
2.2.2 Input Opto-Coupler Check
Step 2. PLT ENA Terminals
Change the following settings from Table 6-3:
• PLT
• Z1P
• Z1G
• PLTP
• PLTG
• Z3P
• Z3G
• T3P
• T3G
• Z3FR
YES
0UT
OUT
OUT
6.0
OUT
6.0
BLK
BLK
REV
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