9190700990 Rev F
BE1-67N Testing
5-3
6. Reduce
I
O
to 1.8 Aac.
7. Confirm that the non-directional instantaneous trip output contacts at terminals 14 and 15 open.
8. Adjust the Non-Directional Instantaneous Overcurrent control fully clockwise.
Directional, Instantaneous Overcurrent Pickup Test
1. Perform
the
Preliminary Test Setup
before proceeding with time overcurrent pickup testing.
2. Set the polarizing voltage source (V
O
) for 4.0 Vac at a 0
°
phase angle.
3. Rotate the Directional, Instantaneous Overcurrent control fully clockwise.
4. Apply 2.0 Aac of I
O
.
5. Slowly adjust the Directional, Instantaneous Overcurrent control counterclockwise until the directional
instantaneous trip output contacts (terminal 11 and 13) close.
6. Adjust the V
O
phase angle until the directional instantaneous trip output contacts open and the
Directional Instantaneous Inhibit indicator lights. The V
O
phase angle should be 75
°
±
5
°
.
7. Adjust the V
O
phase angle for 0
°
. The directional instantaneous trip output contacts should close.
8. Reduce
I
O
to 1.8 Aac.
9. Confirm that the directional instantaneous trip output contacts open.
10. Rotate the Directional, Instantaneous Overcurrent control fully clockwise.
V
O
Directional Verification
For the following tests, it will be necessary to adjust and monitor the magnitude of voltage and current as
well as the phase angle relationship between sensing quantities. The results should be recorded on polar
graph paper to understand the significance of the results. Blank polar graph forms are provided in
Appendix B,
Polar Graph Forms
.
1. Perform
the
Preliminary Test Setup
before proceeding with time overcurrent pickup testing.
2. Adjust the polarizing voltage source (V
O
) for 4.0 Vac at a 0
°
phase angle.
3. With the I
O
current source set at 1.0 Aac (low range) or 2.0 Aac (high range), and the Characteristic
Angle switch set at 0
°
, vary the phase angle of the V
O
input through 360
°
and note the phase angles
within which the Directional Timing Inhibit indicator turns off. When these results are illustrated on a
polar plot, the graph should resemble a v-shaped line through the origin from –75
°
to +75
°
,
±
5
°
. This
plot defines the trip region as shown in Figure 5-2.
Figure 5-2. Trip Zone Using V
O
as Polarizing Source (Char. Angle = 0
°
)
Содержание BE1-67N
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Страница 36: ...4 2 BE1 67N Installation 9190700990 Rev F Figure 4 1 Panel Cutting and Drilling Diagram Semi Flush Mounting...
Страница 37: ...9190700990 Rev F BE1 67N Installation 4 3 Figure 4 2 Panel Drilling Diagram Projection Mounting...
Страница 38: ...4 4 BE1 67N Installation 9190700990 Rev F P0002 14 08 10 01 Figure 4 3 Cover Dimensions Front View...
Страница 39: ...9190700990 Rev F BE1 67N Installation 4 5 Figure 4 4 Case Dimensions Rear View...
Страница 43: ...9190700990 Rev F BE1 67N Installation 4 9 Figure 4 7 Typical Internal Connections...
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Страница 60: ...A 2 BE1 67N Characteristic Curves 9190700990 Rev F Figure A 1 Timing Type B1 Short Inverse Switch Position 3...
Страница 61: ...9190700990 Rev F BE1 67N Characteristic Curves A 3 Figure A 2 Timing Type B2 Long Inverse Switch Position 1...
Страница 62: ...A 4 BE1 67N Characteristic Curves 9190700990 Rev F Figure A 3 Timing Type B3 Definite Time Switch Position 5...
Страница 63: ...9190700990 Rev F BE1 67N Characteristic Curves A 5 Figure A 4 Timing Type B4 Moderate Inverse Switch Position 2...
Страница 64: ...A 6 BE1 67N Characteristic Curves 9190700990 Rev F Figure A 5 Timing Type B5 Inverse Switch Position 4...
Страница 65: ...9190700990 Rev F BE1 67N Characteristic Curves A 7 Figure A 6 Timing Type B6 Very Inverse Switch Position 6...
Страница 68: ...A 10 BE1 67N Characteristic Curves 9190700990 Rev F Figure A 9 Timing Type E4 BS 132 Inverse Switch Position 9...
Страница 69: ...9190700990 Rev F BE1 67N Characteristic Curves A 11 Figure A 10 Timing Type E5 BS 142 Inverse Switch Position A...
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