5-6
BE1-50/51B-230/-234 Testing
9252000894 Rev D
Figure 5-4. Target Indicator Test Setup
Manual Trip
1. Configure the relay for manual trip testing:
a. Connect the test setup as shown in Figure 5-1.
b. Set circuit board switch SW3 as follows:
SW3-1 = ON for 50 Hz operation or OFF for 60 Hz operation
SW3-2 = OFF (no additional time delay for the 50-A element)
SW3-3 = ON (GE IAC type characteristic curves)
SW3-4 = ON (integrating reset characteristic)
c. Set TIME DIAL to 0.0
d. Set CURVE to S.
e. Set TIME PICKUP to 1.0.
f.
Set INST PICKUP (50-A) to 90.
g. Set INST PICKUP (50-B) (accessed at the top side of the assembly) to 20 (2.0 Aac).
2. Apply 0.9 Aac to terminals 5 and 6 (0.9 Aac provides relay operating power but is below the pickup
threshold.)
3. Connect a jumper to the Time Overcurrent Manual Trip jacks. Verify that the stop input of the test set
timer recognizes a 51 contact closure.
4. Remove the jumper and the current applied at relay terminals 5 and 6.
5. Apply 0.9 Aac to terminals 5 and 6.
6. Connect a jumper to the Instantaneous Overcurrent Manual Trip jacks. Verify that the stop input of
the test set timer recognizes a 50-A contact closure
7. Remove the jumper and the current applied to relay terminals 5 and 6.
8. Reset
targets.
Summary of Contents for BE1-50B-230
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