ML18348A637: Difference between revisions
Jump to navigation
Jump to search
StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
||
(One intermediate revision by the same user not shown) | |||
Line 16: | Line 16: | ||
=Text= | =Text= | ||
{{#Wiki_filter:.... !!' | {{#Wiki_filter:.... !!' | ||
iRegulatory Dodtet Fil~ | |||
* consumers | |||
* PDWJr company General Offices: 212 West Michigan Avenue, .Jackson, Michigan 49201 | |||
* Area Code 517 788-0550 August 14, 1975 Division of Reactor Licensing US Nuclear Regulatory Commission Washington, DC 20555 | * Area Code 517 788-0550 August 14, 1975 Division of Reactor Licensing US Nuclear Regulatory Commission Washington, DC 20555 | ||
* DOCKET 50-255, LICENSE DPR-20, PALISADES PLANT, UE-75-9 Attached is Unusual Event Report No. 75-9 covering high cylinder and exhaust temperatures associated with the operation of a Palisades diesel generator | * DOCKET 50-255, LICENSE DPR-20, PALISADES PLANT, UE-75-9 Attached is Unusual Event Report No. 75-9 covering high cylinder and exhaust temperatures associated with the operation of a Palisades diesel generator * | ||
* | * @Jtt~ '7 .*.* | ||
'7 .*.* *David A. Bixe 1 Assistant Nuclear Licensing Administrator CC: JGKeppler, USNRC * -8689 | *David A. Bixe 1 Assistant Nuclear Licensing Administrator CC: JGKeppler, USNRC | ||
.. * | * -8689 | ||
Palisades Plant, Covert, Michigan 4. Identification of Occurrence: | ~ .. | ||
Diesel Generator 1-1 high cylinder and exhaust temperatures. | * 1. Report Number: | ||
: 5. Conditions Prior to Occurrence: | UNUSUAL EVENT REPORI' Palisades Nuclear Plant UE-75-9, Docket 50-255 2a. Report Date: August 14, 1975 2b. Occurrence Date: August 4, 1975 | ||
Plant operating at steady-state power of 6. Description of Occurrence: | : 3. Facility: Palisades Plant, Covert, Michigan | ||
During the monthly testing of Diesel Generator 1-1 (August 4, 1975) cylinder temperatures reached approximately ll00°F af'teri5 to 20 minutes of operation. | : 4. Identification of Occurrence: Diesel Generator 1-1 high cylinder and exhaust temperatures. | ||
The diesel generator was fully loaded at 2.5 MWe. Typical operating temperatures are 950° to l000°F with . temperatures as high as 1200°F considered acceptable although not desirable The diesel generator load test was terminated and the unit declared inoperable in accordance with Palisades Technical Specification 3.7 (i). | : 5. Conditions Prior to Occurrence: Plant operating at steady-state power of 6~. | ||
* 7. Designation of the Apparent Cause of the Occurrence: | : 6. Description of Occurrence: During the monthly testing of Diesel Generator 1-1 (August 4, 1975) cylinder temperatures reached approximately ll00°F af'teri5 to 20 minutes of operation. The diesel generator was fully loaded at 2.5 MWe. Typical operating temperatures are 950° to l000°F with | ||
Failure of a | . temperatures as high as 1200°F considered acceptable although not desirable The diesel generator load test was terminated and the unit declared inoperable in accordance with Palisades Technical Specification 3.7 (i). | ||
* 7. Designation of the Apparent Cause of the Occurrence: Failure of a bellows support bracket resulted in an exhaust manifold bellows failure. | |||
_and an increase of about 100 F in the cylinder temperatures. | This failure caused a decreased exhaust flow to the turbosupercharger (which resulted in a low air intake manifold pressure) _and an increase of about 100 F in the cylinder temperatures. * | ||
: 8. Analysis of Occurrence: The Palisades Technical Specification permits the diesel generator* to be out of service for a limited period of time. In addition, if the diesel would have been required it would have been placed in service and would perform its design function. | |||
The Palisades Technical Specification permits the diesel generator* | : 9. Corrective Action: The bellows support bracket was repaired and new exhaust manifold bellows installed. In addition, the diesel generator testing procedures are being reviewed with respect to acceptable cylinder wall temperatures. | ||
to be out of service for a limited period of time. In addition, if the diesel would have been required it would have been placed in service and would perform its design function. | : 10. Failure .Data: No preVious failure of this type have been recorded * | ||
: 9. Corrective Action: The bellows support bracket was repaired and new exhaust manifold bellows installed. | *}} | ||
In addition, the diesel generator testing procedures are being reviewed with respect to acceptable cylinder wall temperatures. | |||
: 10. Failure .Data: No preVious failure of this type have been recorded *}} |
Latest revision as of 15:16, 2 February 2020
ML18348A637 | |
Person / Time | |
---|---|
Site: | Palisades ![]() |
Issue date: | 08/14/1975 |
From: | Bixel D Consumers Power Co |
To: | Office of Nuclear Reactor Regulation |
References | |
UE-75-9 | |
Download: ML18348A637 (2) | |
Text
.... !!'
iRegulatory Dodtet Fil~
- consumers
- Area Code 517 788-0550 August 14, 1975 Division of Reactor Licensing US Nuclear Regulatory Commission Washington, DC 20555
- DOCKET 50-255, LICENSE DPR-20, PALISADES PLANT, UE-75-9 Attached is Unusual Event Report No. 75-9 covering high cylinder and exhaust temperatures associated with the operation of a Palisades diesel generator *
- @Jtt~ '7 .*.*
- David A. Bixe 1 Assistant Nuclear Licensing Administrator CC: JGKeppler, USNRC
- -8689
~ ..
- 1. Report Number:
UNUSUAL EVENT REPORI' Palisades Nuclear Plant UE-75-9, Docket 50-255 2a. Report Date: August 14, 1975 2b. Occurrence Date: August 4, 1975
- 3. Facility: Palisades Plant, Covert, Michigan
- 4. Identification of Occurrence: Diesel Generator 1-1 high cylinder and exhaust temperatures.
- 5. Conditions Prior to Occurrence: Plant operating at steady-state power of 6~.
- 6. Description of Occurrence: During the monthly testing of Diesel Generator 1-1 (August 4, 1975) cylinder temperatures reached approximately ll00°F af'teri5 to 20 minutes of operation. The diesel generator was fully loaded at 2.5 MWe. Typical operating temperatures are 950° to l000°F with
. temperatures as high as 1200°F considered acceptable although not desirable The diesel generator load test was terminated and the unit declared inoperable in accordance with Palisades Technical Specification 3.7 (i).
- 7. Designation of the Apparent Cause of the Occurrence: Failure of a bellows support bracket resulted in an exhaust manifold bellows failure.
This failure caused a decreased exhaust flow to the turbosupercharger (which resulted in a low air intake manifold pressure) _and an increase of about 100 F in the cylinder temperatures. *
- 8. Analysis of Occurrence: The Palisades Technical Specification permits the diesel generator* to be out of service for a limited period of time. In addition, if the diesel would have been required it would have been placed in service and would perform its design function.
- 9. Corrective Action: The bellows support bracket was repaired and new exhaust manifold bellows installed. In addition, the diesel generator testing procedures are being reviewed with respect to acceptable cylinder wall temperatures.
- 10. Failure .Data: No preVious failure of this type have been recorded *