Loss of Non-1E Invertor, D-115 cont'd

DOE-HDBK-1099-96

APPENDIX B - EXAMPLE DRILL SCENARIOS

Title:

Loss of Non-1E Invertor, D-115

Drill Number: 062-01

Revision Number: 0

Expected Response/Evaluation Criteria:

Control - announce and initially respond per appropriate alarm responses. These

responses should be prioritized according to the indications and should result in:

(1) stabilization of facility condition,

(2) assessment of facility reveals no apparent cause for the trip, and the breaker

remains closed following reclosure.

Termination and Restoration:

Termination:

1) Normal completion: Normal operation of D-115 is restored.

2) Emergency Termination: Control Room temperature approaching 90 F;

Reactor Cover Gas > 15" and increasing or <5" and decreasing; or, IEM Cell

pressure > 0" and increasing or < -8" and decreasing. Any HTS temperature

outside a 400-440 F band.

D-115 is operating per facility procedures.

B 4-3