9137200997 Rev D BE1-51 Tests and Adjustments 5-3
Figure 5-3. Test Setup for Sensing Input Type H or V (Three-Phase with Neutral Sensing)
Figure 5-4. Test Setup for Sensing Input Type I or X (Two-Phase with Neutral Sensing)
Time Overcurrent Pickup Test
This test checks the minimum and maximum overcurrent pickup points of the time overcurrent element.
Step 1. Perform the preliminary instructions.
Step 2. Set the front panel TAP selector to A.
Step 3. Adjust the test set, for an overcurrent threshold having one of the following values:
(a) 0.5 for relays with Sensing Input Range 1, 2, or 4.
(b) 1.5 A for relays with Sensing Input Range 3 or 5.
NOTE
During this test, disregard any indication on the test setup timer.
Courtesy of NationalSwitchgear.com
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