Due 733,5 ms 4,786 % 2,000 A Passed

Due to Omicron’s restraints, tests for Zones 4 and 5 were only possible
for three-pole short circuits; otherwise, impedances selected would be
presented as out of range. In this test, six of the impedances selected were
less than the Zone 4 impedance, hence the tripping times corresponded to the
tripping time of the Zone 4 (nominal time 700 ms + time deviation), whereas the
other four impedances selected were higher than the Zone 4 impedance and their
tripping times consequently corresponded to the tripping time of the Zone 5
(nominal time 1, 5 s + time deviation) as expected. For all the impedances
selected, the relay tripped within the correct times, depending on which zone
was the impedance a part of.

Test Results

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Shot
Test: Fault Type L1-L2-L3

| Z |

Phi

t nom

t act.

Dev.

ITest

Result

21,20 ?

82,85 °

700,0 ms

733,5 ms

4,786 %

2,000 A

Passed

21,25 ?

85,00 °

700,0 ms

734,2 ms

4,886 %

2,000 A

Passed

21,12 ?

92,00 °

700,0 ms

734,1 ms

4,871 %

2,000 A

Passed

21,55 ?

79,30 °

700,0 ms

733,6 ms

4,8 %

2,000 A

Passed

21,96 ?

74,68 °

700,0 ms

733,5 ms

4,786 %

2,000 A

Passed

24,55 ?

60,00 °

700,0 ms

733,6 ms

4,8 %

2,000 A

Passed

26,26 ?

62,80 °

1,500 s

1,534 s

2,28 %

2,000 A

Passed

25,23 ?

70,00 °

1,500 s

1,534 s

2,26 %

2,000 A

Passed

23,52 ?

85,00 °

1,500 s

1,540 s

2,667 %

2,000 A

Passed

24,00 ?

100,00 °

1,500 s

1,554 s

3,567 %

2,000 A

Passed