9137200997 Rev D BE1-51 Tests and Adjustments i
SECTION 5 • TESTS AND ADJUSTMENTS
TABLE OF CONTENTS
SECTION 5 • TESTS AND ADJUSTMENTS............................................................................................ 5-1
GENERAL.............................................................................................................................................. 5-1
REQUIRED TEST EQUIPMENT ........................................................................................................... 5-1
OPERATIONAL TEST ........................................................................................................................... 5-1
Preliminary Instructions...................................................................................................................... 5-1
Time Overcurrent Pickup Test............................................................................................................ 5-3
Neutral Defeat Test ............................................................................................................................ 5-5
Timed Output Test.............................................................................................................................. 5-5
Instantaneous Overcurrent Pickup Test............................................................................................. 5-7
ADJUSTMENTS OF CONTROLS FOR RELAY OPERATION ............................................................. 5-8
TAP and TAP (NEUTRAL) Selector Setting....................................................................................... 5-8
Time Overcurrent Curve Selection (Timing Type Z1, Z2, and Z3 Only) ............................................ 5-9
Time Delay Selection ....................................................................................................................... 5-10
Neutral Time Delay Selection........................................................................................................... 5-10
INST 1 Control Setting ..................................................................................................................... 5-10
INST 2 Control Setting ..................................................................................................................... 5-11
Figures
Figure 5-1. Test Setup for Sensing Input Type K (Single-Phase Sensing)............................................... 5-2
Figure 5-2. Test Setup for Sensing Input Type G (Three-Phase Sensing)............................................... 5-2
Figure 5-3. Test Setup for Sensing Input Type H or V (Three-Phase with Neutral Sensing).................... 5-3
Figure 5-4. Test Setup for Sensing Input Type I or X (Two-Phase with Neutral Sensing)........................ 5-3
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