9252000899 Rev —
BE1-50/51B-237/-238 Testing
i
SECTION 5
•
TESTING
TABLE OF CONTENTS
TESTING ............................................................................................................................ 5-1
INTRODUCTION.................................................................................................................................... 5-1
DIELECTRIC TEST ............................................................................................................................... 5-1
TEST PROCEDURES ........................................................................................................................... 5-1
Time Overcurrent (51) Pickup......................................................................................................... 5-1
Time Dial......................................................................................................................................... 5-2
Integrating Reset ............................................................................................................................ 5-2
Instantaneous Overcurrent A (50-A) Pickup................................................................................... 5-2
Instantaneous Overcurrent B (50-B) Pickup................................................................................... 5-3
Target Indicators............................................................................................................................. 5-4
Manual Trip ..................................................................................................................................... 5-5
Time Overcurrent (51) Pickup......................................................................................................... 5-6
Time Dial......................................................................................................................................... 5-6
Integrating Reset ............................................................................................................................ 5-7
Instantaneous Overcurrent A (50-A) Pickup................................................................................... 5-7
Instantaneous Overcurrent B (50-B) Pickup................................................................................... 5-8
Target Indicators............................................................................................................................. 5-9
Manual Trip ................................................................................................................................... 5-10
Figures
Figure 5-3. 50-B Pickup Test Setup .......................................................................................................... 5-4
Figure 5-4. Target Indicator Test Setup .................................................................................................... 5-5
Figure 5-3. 50-B Pickup Test Setup .......................................................................................................... 5-9
Figure 5-4. Target Indicator Test Setup .................................................................................................. 5-10
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