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BE1-50/51M - Testing 5-3

NOTES

When testing TIME overcurrent functions, INST PICKUP settings of 00 will affect the

calibration of the TIME functions. TIME PICKUP settings of 00 also affect INST

functions.

Test Procedure, Models BE1-50/51M-X04 and -X09 (Five Ampere Sensing Input)

Time Pickup Test

Perform preliminary setup:

Connect test setup as shown in Figure 5-1.

Insure 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 0.5.

Set INST PICKUP to 90.

Step 1. Slowly increase current to terminals 8 and 9. ACTIVE/PICKUP LED should turn red at a maximum input

current of 0.550 ampere.

Step 2. Decrease input current until ACTIVE/PICKUP LED turns green then OFF.

Step 3. Set TIME PICKUP to 2.2.

Step 4. Slowly increase current to terminals 8 and 9. ACTIVE/PICKUP LED should change from green to red

at an input current of 2.131 to 2.269 amperes.

Step 5. Decrease input current until ACTIVE/PICKUP LED turns OFF.

INST Pickup Test

Perform preliminary setup:

Connect test setup as shown in Figure 5-1.

Insure 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 15.1.

Set INST PICKUP to 01.

Step 1. Slowly increase current to terminals 8 and 9. INST contacts should close at an input current of 0.955

to 1.045 amperes.

Step 2. Decrease input current until INST output contacts open.

Step 3. Set INST PICKUP to 08.

Courtesy of NationalSwitchgear.com

Basler BE1-50/51M-100 Series User Manual

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