Test procedure for one ampere units, Time pickup test, Inst pickup test – Basler Electric BE1-50/51M User Manual
Page 47: Test procedure for one ampere units -5, Time pickup test -5, Inst pickup test -5
9252000990 Rev R
BE1-50/51M Testing
5-5
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.
Step 3. Connect a jumper between TIME MANUAL TRIP test points. Check that TIME target operates.
Step 4. Connect a jumper between INST MANUAL TRIP test points. Check that INST target operates.
Step 5. Reset targets.
Test Procedure for One Ampere Units
Perform preliminary setup:
TIME Pickup Test
•
Connect test setup as shown in Figure 5-1.
•
Ensure that SW3 switches are set correctly: SW3-1 for operating frequency, SW3-2 to OFF (no
instantaneous delay), SW3-3 to OFF (no instantaneous delay (100 series relays) or ABB type
curves selected (200 series relays)), and SW3-4 to OFF (selects instantaneous reset).
•
Set TIME DIAL to 0.0.
•
Set CURVE to S
•
Set TIME PICKUP to 0.1.
•
Set INST PICKUP to 18.0.
Step 1. Slowly increase current to terminals 8 and 9. ACTIVE/PICKUP LED should turn RED at a
maximum input current of 0.11 ampere.
Step 2. Decrease input current until ACTIVE/PICKUP LED turns GREEN then OFF.
Step 3. Set TIME PICKUP to 0.44.
Step 4. Slowly increase current to terminals 8 and 9. ACTIVE/PICKUP LED should change from GREEN
to RED at an input current of 0.426 to 0.454 amperes.
Step 5. Decrease input current until ACTIVE/PICKUP LED turns Green then OFF.
Perform preliminary setup:
INST Pickup Test
•
Connect test setup as shown in Figure 5-1.
•
Ensure that SW3 switches are set correctly: SW3-1 for operating frequency, SW3-2 to OFF (no
instantaneous delay), SW3-3 to OFF (no instantaneous delay (100 series relays) or ABB type
curves selected (200 series relays)), and SW3-4 to OFF (selects instantaneous reset).
•
Set TIME DIAL to 0.0.
•
Set CURVE to S
•
Set TIME PICKUP to 3.02.
•
Set INST PICKUP to 0.2.
Step 1. Slowly increase current to terminals 8 and 9. INST contacts should close at an input current of
0.191 to 0.209 amperes.
Step 2. Decrease input current until INST output contacts open.
Step 3. Set INST PICKUP to 1.6.
Step 4. Slowly increase current to terminals 8 and 9. INST contacts should close at an input current of
1.563 to 1.637 amperes.
Step 5. Decrease input current until INST output contacts open.