ML19093A487

Generic Letter 89-06, Re SPDS Photographs, Which Is Made Up of Series of Colorgraphic Displays Arranged in a Hierarchical Manner

ML19093A487
Person / Time
Site:	Surry
Issue date:	07/24/1989
From:	Virginia Electric & Power Co (VEPCO)
To:	US Atomic Energy Commission (AEC)
References
Download: ML19093A487 (54)

Text

GENERIC LETTER 89-06

• SPDS PHOTOGRAPHS SURRY POWER STATION A. GENERAL INFORMATION The SPDS for the Surry Power Station is made up of a series of colorgraphic displays arranged in a hierarchical manner. The three levels of displays consist of the SPDS top level display, six SPDS mid level displays, and 39 parameter vs. time plots. The top level display gives an overview of all six critical safety functions at a glance, while more detail can be obtained on a given safety function as lower levels are accessed. There is one mid level display for each critical safety function and the time dependent behavior of each parameter making up the critical safety function can be obtained from the parameter vs. time plots.

There are two SPDS workstations in the control room for each Surry unit. The Shift Supervisor's console consists of a 19 inch color CRT and keyboard. The Shift Technical Advisor's console consists of two 19 inch CRT's and two keyboards.

The photographs for Surry were taken from Unit 1 with the unit in e full power operation. The SPDS for Unit 2 is identical.to the Unit 1 SPDS.

B. PHOTOGRAPHIC DETAILS The following photographs, identified by number (upper right corner), are provided in this package:

1. Control Room overyiew - The Shift Technical Advisor's console is in the foreground and the Shift Supervisor's console is in the background. The Shift Technical Advisor is the primary user of the SPDS during transient.

2. Shift Technical Adv~sor's Console

3. Shift Technical Advisor's Console - Alternate View

4. Shift Supervisor's Console

5. SPDS Keyboard

6. SPDS Top Level Display

7. Reactivity Control Mid Level Display

8. Core Heat Removal Mid Level Display

9. Secondary Heat Removal Mid Level Display

10. RCS Integrity Mid Level Display

11. Radioactivity Control Mid Level Display - The magenta bar for secondary steam activity indicates a problem in calculating this parameter and that the value indicated is unreliable at the time the photograph was taken.

12. Containment Conditions Mid Level Display - The magenta bar for hydrogen concentration indicates a problem in calculating this parameter and that the value indicated is unreliable at the time the photograph was taken.

13. Log Source Range Neutron Detectors Parameter vs. Time Plot

14. Log Intermediate Range Neutron Detectors Parameter vs. Time Plot

15. Power Range Neutron Detectors Parameter vs. Time Plot

16. Startup Rate Parameter vs. Time Plot

17. RCCA's Not Full In Indication Parameter vs. Time Plot

18. Wide Range Cold Leg Temperature Parameter vs. Time Plot

19. Peak Core Exit Temperature Parameter vs. Time Plot

20. Core Exit Thermocouple Margin to saturation Parameter vs.

Time Plot

21. Reactor Vessel Level Parameter vs. Time Plot

22. RCS Loop Flow Parameter vs. Time Plot

23. Average Loop Temperature Parameter vs. Time Plot

24. Loop Delta Temperature Parameter vs. Time Plot

25. Steam Generator Level Parameter vs. Time Plot

26. Steam Generator Pressure Parameter vs. Time Plot

27. Average Feedwater Flow Parameter vs. Time Plot

28. Steam Flow Parameter vs. Time Plot

29. Condensate storage Tank Level Parameter vs. Time Plot

30. Residual Heat Removal Flow Parameter vs. Time ?lot

31. RCS Average Pressure Parameter vs. Time Plot

32. Pressurizer Level Parameter vs. Time Plot

33. Pressurizer Relief Paths Out of Position Indication Parameter vs. Time Plot

• 34. Margin to Nil Ductility Transition Limit Parameter vs. Time Plot

35. Cold Leg Safety Injection Flow Par~meter vs. Time Plot

36. Containment Pressure Parameter I

vs. Time Plot

37. Containment Wide Range Sump Level Parameter vs. Time Plot

38. Secondary Activity Parameter vs. Time Plot

39. Condenser Air Ejector Radioactivity Parameter vs. Time Plot

40. Vents and Stacks Radioactivity Parameter vs. Time Plot

41. Liquid Release Radioactivity Parameter vs. Time Plot

42. Primary Water Radioactivity Parameter vs. Time Plot

43. Secondary Steam Radioactivity Parameter vs. Time Plot - The magenta value for secondary steam activity indicates a problem in calculating this parameter and that the value indicated is unreliable at the time the photograph was taken.

44. Containment Monitors Radioactivity Parameter vs. Time Plot

45. Area Monitors Radioactivity Parameter vs. Time Plot

46. Isolation Valves Out of Position Indication Parameter vs.

Time Plot

47. Intermediate Range Containment Pressure Parameter vs. Ti~e Plot

48. Wide Range Containment Pressure Parameter vs. Time Plot

49. Containment Temperature Parameter vs. Time Plot

50. Hydrogen Concentration Parameter vs. Time Plot - The magenta value for hydrogen concentration indicates a problem in calculating this parameter and that the value indicated is unreliable at the time the photograph was taken.

51. Refueling Water storage Tank Level Parameter vs. Time Plot

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