Basler Electric BE1-50/51B-237 - Manual (Page 47)

9252000899 Rev B BE1-50/51B-237/-238 Testing 5-9
The Target Operating Current Jumpers are located on the circuit board and identified as J1 and J2.
J1 sets the minimum current range for the 50-A target and J2 sets the minimum current range for the
51 target. A jumper installed across pins 1 and 2 gives a minimum operating current of 0.9 to 2.25 A.
A jumper installed across pins 2 and 3 gives a minimum operating current of 80 to 200 mA.
4. Remove the target and sensing current and reset the target.
5. Set TIME PICKUP to 1.8.
6. Set INST PICKUP (50-A) to 0.2.
7. Apply 0.4 Aac to terminals 5 and 6 to trip the 50-A relay output.
8. Slowly increase the voltage source to provide target current and verify that the Instantaneous target
operates at the level of current determined by the Target Operating Current Jumpers.
9. Remove the target and sensing current and reset the targets.
Figure 5-6. Target Indicator Test Setup
1. Configure the relay for manual trip testing:
Manual Trip
a. Connect the test setup as shown in Figure 5-4.
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 0.2.
f. Set INST PICKUP (50-A) to 18.0.
g. Set INST PICKUP (50-B) (accessed at the top side of the assembly) at 20 (0.4 Aac).
2. Apply 0.18 Aac to terminals 5 and 6 (0.18 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 0.18 Aac to terminals 5 and 6.