9190700990 Rev F
BE1-67N Testing
5-5
Figure 5-4. Trip Zone Using IO as Polarizing Source (Char. Angle = 0
°
)
Timing Curve Verification
Connect the relay as shown in Figure 5-1. For convenience, verification of timing may be performed at a
low current level. Timing will be measured from the point that the sensed current is applied until the
output contact changes state. The equipment needed to accomplish this task will need to step from 0 to
1.875 Aac (low range) or 0 to 5.625 Aac (high range).
Table 5-2 lists checkpoints for each timing characteristic. Use the Time Overcurrent Characteristic Curve
Selector switch (locator C of Figure 2-2) to select the desired characteristic.
Table 5-2. Expected Timing at Five Times Pickup
Expected Times at Indicated
Time Dial Setting
∗
Timing Type
Selector
Option
00 10
B1
3
0.066 s
0.194 s
B2
1
0.587 s
3.410 s
B3
5
0.103 s
0.494 s
B4
2
0.168 s
0.875 s
B5
4
0.149 s
0.722 s
B6
6
0.126 s
0.551 s
B7
7
0.195 s
1.011 s
B8
0
0.329 s
1.790 s
E2
8
1.560 s
9.060 s
E4
9
0.130 s
0.540 s
E5
A
0.233 s
1.190 s
E6
B
0.160 s
0.770 s
E7
C, D, E, F
0.130 s
0.480 s
∗
Accuracy, with Tap Calibration control rotated fully clockwise, is
±
5% or 50 milliseconds (whichever is greater) within values
shown graphically on the published characteristic curves.
Summary of Contents for BE1-67N
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