IR 05000250/1990037
| ML17348A729 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 11/01/1990 |
| From: | Conlon T, Fillion P NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML17348A728 | List: |
| References | |
| 50-250-90-37, 50-251-90-37, NUDOCS 9011150007 | |
| Download: ML17348A729 (6) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION
REGION II
101 MARIETTASTREET, N.W.
ATLANTA,GEORGIA 30323 Report Nos.:
50-250/90-37 and 50-251/90-37 Licensee:
Florida Power and Light Company 9250 West Flagler Street Miami, FL 33102 Docket Nos.:
50-250 and 50-251 Facility Name:
Turkey Point 3 and 4 Inspection Conducted:
October 15-19, 1990 Inspector:
Paul J. Fill'
Approved by:
T.
E. Conlon, hief Plant Systems Section Engineering Branch Division of Reactor Safety License Nos.:
// /
gII D t Signed Ji Da e igned SUMMARY Scope:
This special, announced inspection was conducted in the areas of general design criteria and qualification for emergency diesel
- generator sets.
The inspector reviewed test and qualification reports, safety-evaluations, various types of procedures, calculations and drawings.
Results:
In the areas inspected, violations or deviations were not identified.
The licensee's design and qualification test program met the requirbments stated in Regulatory Guide 1.9 "Selection, Design, and gualification of Diesel-Generator Units used as Standby (Onsite) Electric Power Systems at Nuclear Power Plants."
This good performance was attributed to:
(a) All of the engineers contacted during the inspection (FP8 L and Ebasco)
were very knowledgeable in their respective areas of responsibility; and (b) Engineering management has been effective.
90111 00C>7 901107 FDR ADOI.V II50002~0
REPORT DETAILS 1.
Persons Contacted Licensee Employees
"C. Bible, Electrical Engineer, Nuclear Engineering J.
Broadwater, Lead Startup Engineer
"R. Gross, Engineering Project Manager, Nuclear Engineering T. Grozan, Nuclear Licensing L. Kennedy, Electrical Engineer, Nuclear Engineering R. Kundalkar, Site Engineering Project Manager W. Luska, Lead Electrical Startup Engineer
"H. Paduano, Manager, Technical Nuclear Engineering
"D. Smith, Manager, Electrical and I8C, Nuclear Engineering
"D. Weeks, Mechanical Engineer, Nuclear Engineering Other licensee employees contacted during this inspection included engineers and security force members, Ebasco Service Incorporated J. Austin, Site Electrical Supervisor H. Bourque, Jr., Site Engineering Project Manager
"A. Schildkraut, Supervisor, Electrical Engineering S.
Segarra, I8C Engineer J.
Strange, Site I8C Engineer R. Vidal, Electrical Engineer
"Attended exit interview 2.
Inspection Details In relation to the Emergency Power System Enhancement Project, the NRC inspector focused on how well the licensee met the following design and qualification criteria:
a.
Diesel - generator power output rating.
The NRC inspector reviewed factory production tests, type tests and margin tests results; and the generator factory tests reports.
b.
Starting the design load.
The NRC inspector reviewed calculations performed by NEI Peebles
- Electric Products, Inc. to show that the diesel generator sets have the capacity and capability to start the design loads while maintaining voltage and frequency within specified limits.
The NRC inspector also reviewed a test report by Morrison-Knudsen, Inc. which concluded that the diesel generator h
I
C.
sets delivered to the Turkey Point Plant will be able to start the design load.
This test applied the design load profile while measuring and recording voltage, frequency, current, KM and KYAR.
Loading calculations and sequencing modifications.
The NRC inspector reviewed the diesel
-
generator loading calculations and the licensee's safety-evaluation for proposed load sequencing changes.
Design control procedures in relation to possible future changes to the loading calculations was also addressed.
d.
System voltage profile.
The NRC inspector asked questions concerning the licensee's analysis of voltage throughout the emergency power system when operating from the diesel - generators.
The licensee presented a preliminary study.
The final voltage profile study will be complete in early 1991.
e.
The NRC inspector reviewed the licensee's calculation which concluded that the generator leads have an ampacity at least equal to the 2000 hour0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br /> rating of the diesel-generator sets.
f.
Reactive power limitation and no-load operation.
The NRC inspector reviewed the relevant portions of the Operations Surveillance Procedures, Operating Procedures and Emergency Operating Procedures to confirm that the operators have proper guidance to avoid exceeding the reactive power limitation and no-load time limit of the diesel generator sets.
g.
Diesel - generator protective trips.
The NRC inspector confirmed by looking at drawings that the diesel-generator automatic protective trips for the emergency mode of operation will be according to Regulatory Guide 1.9.
h.
Diesel - generator protective relays.
The NRC inspector reviewed the application of the diesel
- generator protective relays.
For generator differential (87G), generator backup (51V), reverse power (motoring)
(32)
and loss of excitation (40) relays, the setpoint calculations were reviewed.
Also, the NRC inspector and those persons responsible for the start-up test program discussed the plan for commissioning the diesel -.generator protective relays.
For each of the above mentioned inspection areas, the NRC inspector concluded that the licensee met the NRC's requirements, and used good engineering practice.
3.
Exit Interview The inspection scope and results were summarized on October 19, 1990, with those persons indicated in paragraph 1.
The inspector described the areas inspected and discussed in detail the inspection results.
Proprietary information is not contained in this report.