ABB REL300 Instruction Manual page 148

I.L. 40-385.7
Step 27.
Step 28.
NOTE: Make sure the jumpers (JMP8 and JMP10) are not IN before applying the voltage to
TB5/13(+) and TB5/14(-).
Apply I
voltage from SBP and reset IOM = I L = 0.5 and CIF = NO.
1.1.1.11 Load-Loss-Trip (LLT) and Loss-of-Potential (LOP) Tests
Step 29.
Apply:
A-14
Trip (CIF) and Stub-Bus Protection (SBP) Logic), for the application of CFT setting.
Reset CIF = CF.
LV setting test. Set LV = 60 and with I
The CIF trip should be for V
For STUB Bus Protection (SBP), check the blue jumpers on the Interconnect mod-
ule. JMP7 and 9 should be IN; JMP13 should be at the rated voltage position. Se-
lect CIF = STUB. Disconnect the voltage from 52b and connect it to terminals TB5/
13(+) and TB5/14(-).
= 4A. The STUB bus trips for any V
A
For Load Loss Trip (LLT), set:
LLT = Yes
Z2P = Z2GF = 4.5 ohms
Z2GR = 0.01
T2P = T2G = 2.99 sec (or BLK)
∠
Va = 30
0°
∠
Vb = 70
– 120°
∠
Vc = 70 120°
∠
Ia = 3.5
– 75°
∠
Ib = 1
– 120°
∠
Ic = 1
+120°
Suddenly increase Ia from 3.5 to 4.5A and then turn I
should trip with LLT target. The trip is accelerated due to the pickup of Zone 2 and
the setting of LLT = YES.
Change the setting of LLT = FDOG and the input current Ia from 1.5 to 2.5A; then
turn I OFF immediately. The relay should trip with a target of LLT. The trip is due
b
to the pickup of FDOG and setting of LLT = FDOG.
= 4A, apply AG fault as shown in Step 10.
AN
<60 Vrms ± 5%.
AN
voltage with a target of CIF. Disconnect the
AN
OFF immediately. The relay
b