ABB REL-300, Инструкция

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I.L. 40-385.1B
6-12 (5/92)
Apply an AG fault as shown in Step 5, with I
A
=
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
A
= 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 (IP) 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
P
= 1.0A
∠−
90
°
to terminals
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.
2.1.5 Output Contact Test
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
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 YES
• Z1P 0UT
• Z1G OUT
• PLTP OUT
• PLTG 6.0
• Z3P OUT
• Z3G 6.0
• T3P BLK
• T3G BLK
• Z3FR REV