Basler Electric BE1-50/51B-233 - Manual (Page 40)

Time Dial Test
Perform preliminary setup:
 Connect test setup as shown in Figure 5-1.
 Insure that SW3 switches are set: SW3-1 to OFF, SW3-2 to OFF, SW3-3 to ON, and SW3-4 ON.
 Set TIME DIAL to 4.5.
 Set CURVE to S
 Set TIME PICKUP to 1.0.
 Set INST PICKUP to 90.
Step 1. Prepare to apply 1.5 amperes input current to terminals 8 and 9 and record the elapsed time from
when current is applied until TIME output contacts close.
Step 2. Apply the current (step from 0 to 1.5 amperes) and record the elapsed time. Elapsed time should
be 0.345 to 0.424 seconds. (This tolerance is greater than ±2 % because it is the accumulation of
both pickup and timing tolerances.)
Step 3. Remove input current.
Target Test
Perform preliminary setup:
 Connect test setup as shown in Figure 5-2.
 Insure that SW3 switches are set: SW3-1 to OFF, SW3-2 to OFF, SW3-3 to ON, and SW3-4 ON.
 Set TIME DIAL to 4.5.
 Set CURVE to S
 Set TIME PICKUP to 1.0.
 Set INST PICKUP to 90.
Step 1. Set voltage source to provide a target current of 1.0 ampere.
Step 2. Apply 5 amperes input current to terminals 8 and 9. Check that the TIME target operates.
Step 3. Remove input current and reset target.
Step 4. Set TIME PICKUP to 15.9 and set INST PICKUP to 01.
Step 5. Set voltage source to provide a target current of 1.0 ampere.
Step 6. Apply 5 amperes input current to terminals 8 and 9. Check that the INST target operates.
Step 7. Remove input current and reset target.
Manual Trip Test
Perform preliminary setup:
 Connect test setup as shown in Figure 5-2.
 Insure that SW3 switches are set: SW3-1 to OFF, SW3-2 to OFF, SW3-3 to ON, and SW3-4 ON.
 Set TIME DIAL to 4.5.
 Set CURVE to S
 Set TIME PICKUP to 1.0.
 Set INST PICKUP to 01.
WARNING!
Trip circuit voltage is present at the front panel test points. When shorting the test
points, use insulated jumpers to avoid contact with these voltages.
Step 1. Set voltage source to provide a target current of 1.0 ampere.
Step 2. Apply 0.9 ampere input current to terminals 8 and 9. (0.9 ampere provides input power but stays
below pickup.)
Step 3. Connect a jumper between TIME MANUAL TRIP test points. Check that TIME target operates.
5-4 BE1-50/51B-233 Testing 9252000897 Rev B