Application of PLCs for nuclear plant emergency load sequencers

Author

Gonzalez, Raul ; Bible, Carl

Author_Institution

I&C Consulting Eng., Ebasco Services Inc., New York, NY, USA

fYear

1994

fDate

10-13 Apr 1994

Firstpage

217

Lastpage

221

Abstract

To alleviate operational problems and improve reliability, Florida Power & Light Company (FPL) initiated an electrical enhancement project which implemented modifications to its Turkey Point nuclear power plant 4.16 kV emergency power supply and distribution system (EPS). Each nuclear unit at the Turkey Point plant is a 760 MWe Westinghouse pressurized water reactor. The original design featured shared emergency diesel generators (EDGs) and 4.16 kV busses between the two units. Included in the EPS were the addition of two new EDGs, a new EDG building, diesel support systems, 480 V load centers, bus load sequencers plus numerous components necessary to segregate the electrical system between the two units. This paper describes design considerations for performance objectives, design control, equipment qualification, documentation, verification and validation, codes and standards and the regulatory approval process. The design of the emergency bus load sequencer represents either the first or one of the first applications of PLCs for safety related systems in a US nuclear power plant

Keywords

design engineering; diesel-electric generators; distribution networks; emergency power supply; fission reactor safety; load (electric); nuclear power stations; nuclear reactor quality assurance; power station control; power system control; programmable controllers; programmed control; project engineering; standby generators; PLC; PWR; USA; bus load sequencers; codes; design; documentation; electrical enhancement project; emergency diesel generators; emergency power system control; equipment qualification; load centers; nuclear power plant; performance objectives; pressurized water reactor; regulatory approval; reliability; safety; standards; validation; verification; Buildings; Code standards; Documentation; Emergency power supplies; Inductors; Nuclear power generation; Power generation; Power system reliability; Programmable control; Qualifications;

fLanguage

English

Publisher

ieee

Conference_Titel

Southeastcon '94. Creative Technology Transfer - A Global Affair., Proceedings of the 1994 IEEE

Conference_Location

Miami, FL

Print_ISBN

0-7803-1797-1

Type

conf

DOI

10.1109/SECON.1994.324301

Filename

324301