GEK-105593C
58
•
Set the relay as follows:
Directionality Settings Group
51 PT Directional
NO
51NT Directional
NO
50PH Directional
NO
50PL Directional
NO
50NH Directional
NO
50NL Directional
YES
Phase Angle
45º
Ground Angle
-45º
V Loss Logic
Permission
•
Apply 4 times the pick up current at 0º to the Ground current inputs. Positive is applied to terminal B3
and negative to terminal B4.
•
Apply 60 V at 0º on phase B. Positive is applied to terminal B5 and negative to terminal B6.
•
Check that relay does not trip.
•
Gradually reduce the voltage to 45 V and check that relay still does not trip.
•
Reduce the voltage to 2.5 V and check that relay trips.
•
Apply 60 V at 180º on phase B.
•
Check that relay trips.
•
Apply 60 V at 230º on phase B.
•
Check that relay does not trip.
•
Apply 60 V at 40º on phase B.
•
Check that relay does not trip.
6.20. UNDERFREQUENCY UNIT (81U)
•
Set the relay as follows:
81 Function Settings Group
81U Pick up
47.5 Hz
Time Delay 81U
2 sec
Inhibit V
35%
•
Enable only 81U function and its related trip.
•
Apply 110 Vac on phase B, varying the frequency from 46 Hz to 54 Hz (inclusive), at intervals of 1 Hz
(switch the voltage source OFF before changing the frequency).
•
Measure the operation time. This should be between 1.9 and 2.1 s, when the frequency is 46 Hz and 47
Hz. For the other frequencies the relay should not trip.
•
Apply 36 Vac on phase B, at a frequency of 46 Hz. The relay should not trip, due to the voltage
supervision.
6.21. OVERFREQUENCY UNIT (81O)
•
Set the relay as follows:
81 Function Settings Group
81O Pick up
52.5 Hz
Time Delay 81U
2 sec
Inhibit V
35%
•
Enable only 81O function and its related trip.
•
Apply 110 Vac on phase B, varying the frequency from 46 Hz to 54 Hz (inclusive), at intervals of 1 Hz
(switch the voltage source OFF before changing the frequency).
•
Measure the operation time. This should be between 1.9 and 2.1 s, when the frequency is 53 Hz and 54
Hz. For the other frequencies the relay should not trip.
Summary of Contents for SMOR-B GEK 105593C
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Page 9: ...GEK 105593C 4 ...
Page 25: ...GEK 105593C 20 FIGURE 5 RECLOSER STATES DIAGRAM 226B2200H1 SUMMARISED ...
Page 51: ...GEK 105593C 46 ...
Page 71: ...GEK 105593C 66 ...
Page 73: ...GEK 105593C 68 ...
Page 88: ...GEK 105593C 83 FIGURES FIGURES FIGURES FIGURES ...
Page 89: ...GEK 105593C 84 FIGURE 1 PANEL DRILLING DIMENSIONS FOR 19 RACK MODELS 226B6086H10 ...
Page 91: ...GEK 105593C 86 FIGURE 3 INVERSE CHARACTERISTIC OPERATING CURVE 226B7414H1 ...
Page 92: ...GEK 105593C 87 FIGURE 4 VERY INVERSE CHARACTERISTIC OPERATING CURVE 226B7414H2 ...
Page 93: ...GEK 105593C 88 FIGURE 5 EXTREMELY INVERSE CHARACTERISTIC OPERATING CURVE 226B7414H3 ...
Page 94: ...GEK 105593C 89 FIGURE 6 RECLOSER PROGRAM FLOWCHART 226B2200H1 ...
Page 95: ...GEK 105593C 90 FIGURE 7 FRONT VIEW FOR 19 RACK MODELS 226B7412H9 ...
Page 96: ...GEK 105593C 91 FIGURE 8 FRONT VIEW FOR 1 2 RACK MODELS ...
Page 97: ...GEK 105593C 92 FIGURE 9 EXTERNAL CONNECTIONS FOR 19 MODELS 189C4101H1 ...
Page 100: ...GEK 105593C 95 FIGURE 13 REAR VIEW FOR 19 MODELS 226B7412H10 ...
Page 102: ...GEK 105593C 97 FIGURE 15 DIMENSIONS DIAGRAM FOR 19 MODELS 226B6086H10 ...