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Information Bulletin No. 46-47
(May-July 2004)

Rovno NPP Unit 4 "Vulcan-RM4" Radiation Monitoring System
Start-up and Pre-SAT

July 30, 2004

"Vulcan-RM4" Radiation Monitoring System (RMS) installation, start-up and pre-SAT related to measuring channels for radiation parameters important for safety were performed at Rovno NPP Unit 4 within the period from 23 June until 26 July 2004.

Rovno NPP Unit 4 "Vulcan-RM4" RMS putting into pilot operation was provided by the personnel of Rovno NPP, Westron and Pozitron accordingly to the Unit 4 building and start schedules. Unit 4 "Vulcan-RM4" RMS hardware was shipped on the agreement between Westron and Atomkomplekt of NAEK ENERGOATOM.

Rovno NPP Unit 4 "Vulcan-RM4" RMS tests has demonstrated that the Radiation Monitoring System based on "Vulcan-RM4" completely meets the applicable requirements on NPP Radiation Monitoring Systems.

"Vulcan-M" Hardware Fully Comply
with NPP Safety Class 2 Requirements

July 28, 2004

On 27 July, 2004 tests of "Vulcan-M" hardware for Information and Control Systems (ICS) and for Safety Class 2 systems were successfully completed.

"Vulcan-M" hardware final tests performed on July 26–27 demonstrated meeting of "Vulcan-M" hardware the safety requirements stated in Requirements on Nuclear and Radiation Safety of Information and Control Systems Important for NPP Safety NP 306.5.02/3.035-2000 related to:

• static electricity discharges - 8 kV

• microsecond pulse noises in power circuits (common mode noise pulse amplitude - 2 kV, normal mode noise pulse amplitude - 4 kV)

• nanosecond pulse noises (noise pulse amplitude for power circuits and safety ground - 4 kV, I/O circuits - 2kV)

Thus, Westron has successfully completed tests of "Vulcan-M" hardware for Control & Information Systems and Safety Class 2 systems according to "Nuclear Power Stations Safety. General. NP 306.1.02/1.034-2000".

"Vulcan-M" hardware is designed for building of the advanced ICS for industrial plants, including nuclear and thermal power plants and manufactured by Westron from 2002. Systems based on "Vulcan-M" hardware are supplied and implemented at the plants and other industrial sites from 2003.

Westron Has Completed Kozloduy NPP CIS Start-up and SAT

July 14, 2004

Westron has successfully completed start-up and SAT of Kozloduy NPP Unit 5 CIS (Bulgaria) performed on Kozloduy NPP Unit 5 CIS replacement project. The chief project company is Westinghouse Electric Company.

Westron's scope of works:

• Development, manufacture, shipment and putting into operation of the new CIS data links interfaces with Unit 5 In-Core Monitoring System (SVRK) and Radiation Monitoring System (AKRB).

• CIS MMI programming.

• Development of some CIS NAPs, i.e. Centralized Testing, Protections and Interlocks Monitoring and Calculation of Technical and Economic Indexes, etc.

"Vulkan-M-CCWS" Hardware-Software System is Ready
for Shipment to Nassiriyah Fossil Power Plant (Iraq)

June 2, 2004

On May 27, 2004, Factory Acceptance Test (FAT) of "Vulkan-M-CCWS" Software-Hardware System (HSS) for Nassiriyah Circulated Cooling Water System I&C (CCWS) was a success.

HSS FAT to demonstrate proper functioning of all HSS control and information functions running in various CCWS hardware modes was performed on Westron's area by FAT commission, including representatives of Interenergoservice (Moscow), "Energoprojekt" institute (Kharkov) and Westron.

FAT commission has made the decision based on HSS FAT results that "Vulkan-M-CCWS" Software-Hardware System is ready for its shipment on site.

HSS was designed and manufactured by Westron on contract concluded with Interenergoservice (Moscow) for Nassiriyah Fossil Power Plant upgrade project implemented by Interenergoservice in Iraq.

HSS is based on "Vulkan-M" hardware designed and manufactured by Westron for building of advanced Control and Information Systems for industrial sites, including nuclear and fossil power plants.

NPP Radiation Monitoring Systems Upgrade Workshop

May 19, 2004

On May 18, 2004 NPP Radiation Monitoring Systems Upgrade Workshop was held at Westron (Kharkov) that discussed in details Radiation Monitoring Systems (RMS) design strategy, hardware and software of Westron and Pozitron applied for RMS design, and experience of implementation and upgrade of RMS based on "Vulkan-RK" Distributed Computer System at Nuclear Power Stations of Ukraine. Russian colleagues furnished the participants of the workshop with the main tendencies of Russian NPP RMS upgrade. Issues related to design of RMS low level (transdusers and actuators) were also covered.

Radiation Monitoring Systems Upgrade Workshop participants:

NAEK "Energoatom", State Nuclear Regulatory Administration of Ukraine, "Rosenergoatom" concern (Russia), Rovno NPP, Zaporozhye NPP, South Ukraine NPP, Chernobyl NPP, Westron, Pozitron, KIEP, KhIEP, "Kharkov Physical and Technical Institute" National Scientific Center, "Institute of Metrology" National Scientific Center, "Shelter" object project management unit, "Ukratompribor" corporation, "Atomkomplekspribor" Research and Production Enterprise, "DARS" Research and Production Enterprise, and Research and Production Complex of Automatics and Machine Building.

Westron and PNNL have Concluded Contract
on Performance of Works at Leningrad NPP

May 11, 2004

Westron and Pacific Northwest National Laboratory (PNNL) have concluded Contract on upgrade of Safety Parameter Display System (SPDS) hardware supplied to Leningrad NPP on International Nuclear Safety Program. The Contract SPDS hardware kit will be similar to SPDS hardware kit manufactured by Westron in 2003.

SPDS hardware will be upgraded by Westron's experts at the same assembly and test area of Leningrad NPP site where the first Leningrad NPP SPDS was manufactured and tested by Westron.

Westron LLC
1 Akademika Proskury Str.,
Kharkiv 61070, Ukraine
Phone: +380-57-717-0601
Phone/Fax: +380-57-717-7956
E-mail: office@westron.kharkov.ua