Hanford Atomic Products Department. Monthly report, June 1966
The programmed long outage which started May 1 was concluded on June 6. During this outage, the sixth heat exchanger cell was tied in, the auxiliary steam boiler was completely overhauled, four steam generators were equipped with isolation valves, extensive replacements of the process tube resistance temperature detectors were made, the reactor was re-orificed, a leaking reactor gas seal was repaired, extensive preventive maintenance was done, and numerous smaller pieces of work were accomplished. After startup, testing of the WPPSS generating station equipment was resumed. Electric power up to 320 Mw was generated, generator trip-offs were executed, and data on the reactor plant response were taken. Both the generating station and the reactor plant behaved excellently. The sixth cell installations performed as designed. Electrical power generation is now limited to about 400 Mw by the unavailability of a step down transformer on the BPA system at Vantage. Elevation of the generated power level to the rated 800 Mw will be possible in the early autumn when transformer delivery is expected by BPA. Three scrams from relatively low power levels occurred during the June 6 startup, which may be regarded as being associated with returning the plant to service after a long outage. Later in the month, there was an additional scheduled scram (from 3000 Mw, to check 6-cell operation) and six other unscheduled scrams due to other causes, as follows: a. A BPA power surge, induced by a local electrical storm b. A fuel element rupture (No. 20 since plant startup) c. Loss of coolant to a control rod d. A fuel element rupture (No. 21) e. Manual scram due to indicated loss of flow monitor master logic f. Loss of No. 4 circulating raw water pump due to failure of motor excitation. Production availability was 71.6%; time operated efficiency was 52.3%.
- Research Organization:
- General Electric Co., Richland, WA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 10164102
- Report Number(s):
- RL-GEN-888-6; ON: DE94014829; TRN: 94:007284
- Resource Relation:
- Other Information: PBD: 10 Jul 1966
- Country of Publication:
- United States
- Language:
- English
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