Pilot Acceptance Tests (For Rel302 Only); Non-Pilot Acceptance Tests For Rel301/302; Input Opto-Coupler Check - ABB REL 301 Instruction Leaflet

I.L. 40-386.1
The following inputs can be tested, in the "TEST" mode, By applying voltage to each input and
observing the "Inputs" display. Scroll to the "Inputs" display, apply rated voltage and as each
input is energized, the associated display segment changes from "–" to "|".
"PLT ENA" (Pilot Enable, REL 302 only)
"RCVR1" (Receiver 1, REL 302 only)
"RCVR2" (Receiver 2, REL 302 only)
This completes the REL 301 and REL 302 (non-pilot) Acceptance Test.
5. 2. PILOT ACCEPTANCE TESTS (FOR REL 302 ONLY)
5.2.1 Non-Pilot Acceptance Tests for REL 301/302
Perform the acceptance test procedures in Section 5.1 if not previously completed. These tests
are valid tests of hardware and firmware performance for either REL 301 or REL 302.
5.2.2

Input Opto-Coupler Check

STEP 12
Pilot Enable (PLT ENA)
In Step 3, Section 5.1, the settings from Table 5-5 should have been loaded for Non-Pilot Ac-
ceptance Tests. Change the following settings using the procedure in Step 4 above:
"Pilot"
"SystType"
"Pilot Ø"
"Pilot G"
"Dir Type"
"GB Type"
Test Using Blocking System
Apply an AG fault as described in Step 6 above. The REL 302 should not trip.
Apply rated dc voltage to terminals T
scribed in Step 6 above. When the relay trips, remove the fault current. PILOT and AG LED's
will light. The LCD display will switch to the "L-FLT" mode and fault distance will be displayed.
Using the R
4-3 for a description of the displayed fault data quantities.
5-12
Input Under Test
"52a"
"52b"
"EXT RESET"
= "YES" (Enable pilot logic)
= "Blocking" (Pilot system selection setting)
= "4.5 Ohms" (Pilot phase distance reach setting)
= "4.5 Ohms" (Pilot ground distance reach setting)
= "Zero sequence" (Directional overcurrent polarization choice setting)
= "Disabled" (Overcurrent ground backup curve family setting)
and L push-buttons the complete fault record can be reviewed. See Table
AISE OWER
4-9(+) and T 4-10(-). Again apply an AG fault as de-
B B
Display
|- - - - -
- | - - - -
- - | - - -
- - - | - -
- - - - | -
- - - - - |