Basler Electric BE1-50/51B-240 User Manual
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9252000790 Rev B
4.
Remove the jumper and the current applied at relay terminals 8 and 9.
5.
Apply 0.9 Aac to terminals 8 and 9.
6.
Connect a jumper to the Instantaneous Overcurrent Manual Trip jacks. Verify that the stop input of
the test set timer recognizes a 50 contact closure.
7.
Remove the jumper and the current applied to relay terminals 8 and 9.
Warning!
Trip circuit voltage is present at the front panel trip jacks. When
shorting the trip jacks, use insulated jumpers to avoid contact with
these voltages.
Target Indicators
1.
Connect and configure the relay for target indicator testing:
a.
Connect the test setup shown in Figure 11.
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 element)
SW3-3 = ON (Westinghouse CO 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 to 90.
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 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.
2.
Apply 2 Aac to terminals 8 and 9 to trip the 51 relay output.
3.
Set voltage source to provide a target current determined by the target operating current jumpers.
4.
Verify that the 51 target operates.
5.
Remove the target and sensing current and reset the target.
6.
Set TIME PICKUP to 9.0.
7.
Set INST PICKUP to 01.
8.
Apply 2 Aac to terminals 8 and 9 to trip the 50 relay output.
9.
Set voltage source to provide a target current determined by the target operating current jumpers.
10.
Verify that the 50 target operates.
11.
Remove the target and sensing current and reset the target.
Testing
BE1-50/51B-240