ENS 53023
ENS Event | |
|---|---|
07:00 Oct 11, 2017 | |
| Title | Part 21 Notification - Hpsi Motor Lead Insulation Gouged |
| Event Description | On October 11, 2017, Arizona Public Service Company (APS) completed an evaluation of a deviation and concluded the condition represented a defect under 10 CFR 21.
On August 25, 2017, a 1000 horsepower, High Pressure Safety Injection critical spare pump motor was discovered to have a gouge in the insulation in one of the three primary leads providing three-phase power to the motor. This deviation was identified by Palo Verde Electrical Maintenance staff during a pre-storage inspection. The gouge was inside the main terminal box, close to the (T2) terminal landing and was deep enough to expose the internal conductive wire. This motor was received on April 5, 2017, following refurbishment at the Westinghouse, Waltz Mill, Pennsylvania, facility. APS concluded this condition could result in the motor failing to perform its safety function and thus could create a substantial safety hazard. The motor was shipped back to the Westinghouse, Waltz Mill facility on October 6, 2017 for repair. The NRC resident inspector has been informed. Vendor: WESTINGHOUSE INTERSTATE 70 MADISON EXIT 54, MADISON, PA 15663 Device: WESTINGHOUSE MOTOR, 1000 HP; 3557 RPM FULL LOAD 3600 SYNC., 4000 VAC, 3 PHASE, 60 HZ - S/N 76F60563 (No model number) |
| Where | |
|---|---|
| Westinghouse Wintersburg, Arizona (NRC Region 4) | |
| Organization: | Palo Verde Nuclear Generatiing |
| Reporting | |
| 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
| Time - Person (Reporting Time:+172.92 h7.205 days <br />1.029 weeks <br />0.237 months <br />) | |
| Opened: | Jorge Rodriguez 11:55 Oct 18, 2017 |
| NRC Officer: | Dong Park |
| Last Updated: | Oct 18, 2017 |
| 53023 - NRC Website
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Westinghouse with 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
WEEKMONTHYEARENS 544402019-12-12T05:00:00012 December 2019 05:00:00
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