BE1-50/51B-Testing
5-7
Time Dial Test
Perform preliminary setup:
Connect test setup as shown in Figure 5-1.
Insure that SW8 switches are set correctly: SW8-1 for operating frequency, SW8-2 to OFF (no
instantaneous delay), SW8-3 to OFF (no instantaneous delay (100 series relays) or ABB type curves
selected (200 series relays) ), and SW8-4 to OFF (selects instantaneous reset).
Set TIME DIAL to 4.5.
Set CURVE to S
Set TIME PICKUP to 0.2.
Set INST PICKUP to 18.0.
Step 1. Prepare to apply 0.3 ampere 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 0.3 ampere) and record the elapsed time. Elapsed time should be
1.754 to 2.084 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 SW8 switches are set correctly: SW8-1 for operating frequency, SW8-2 to OFF (no
instantaneous delay), SW8-3 to OFF (no instantaneous delay (100 series relays) or ABB type curves
selected (200 series relays) ), and SW8-4 to OFF (selects instantaneous reset).
Set TIME DIAL to 4.5.
Set CURVE to S
Set TIME PICKUP to 0.2.
Set INST PICKUP to 0.2.
Step 1. Set target current source to 1.0 ampere, ac.
Step 2. Apply 1 ampere input current to terminals 8 and 9. Check that both TIME and INST targets operate.
Step 3. Remove input current and reset targets.
Manual Trip Test
Perform preliminary setup:
Connect test setup as shown in Figure 5-2.
Insure that SW8 switches are set correctly: SW8-1 for operating frequency, SW8-2 to OFF (no
instantaneous delay), SW8-3 to OFF (no instantaneous delay (100 series relays) or ABB type curves
selected (200 series relays) ), and SW8-4 to OFF (selects instantaneous reset).
Set TIME DIAL to 4.5.
Set CURVE to S
Set TIME PICKUP to 0.2.
Set INST PICKUP to 0.2
Содержание BE1-50B
Страница 5: ...iv BE1 50 51B Introduction Periodic Test 5 9...
Страница 39: ...BE1 50 51B Installation 4 3 Figure 4 3 Panel Drilling Diagram S1 Case Semi Flush Mount...
Страница 43: ...BE1 50 51B Installation 4 7 Figure 4 8 DC Control Connections And Jumper Configuration Terminals...
Страница 44: ...4 8 BE1 50 51B Installation Figure 4 9 BE1 50 51B Overcurrent Relay Rear View...
Страница 59: ...8 2 BE1 50 51B Relay Differences Figure 8 1 Location of Controls and Indicators 100 Series Relays...