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Information Bulletin No. 41
(April 2003)

Zaporozhye NPP "Vulkan-MRMR1"
Distributed Computer System FAT Was a Success

April 17, 2003

On April 16-17, 2003, the factory acceptance test of "Vulkan-MRMR1" Distributed Computer System ("Vulkan-Main Radiation Monitoring Room1") developed and manufactured by Westron for Zaporozhye NPP Unit 1 Radiation Monitoring System (ASRK) top level upgrade was successfully performed on Westron's facilities. The "Vulkan-MRMR1" Distributed Computer System works are performed in line with the Contract concluded by Westron and Zaporozhye NPP on "Vulkan-MRMR1" DCS development, shipment and implementation for Zaporozhye NPP Unit 1 Radiation Monitoring System upgrade. The "Vulkan-MRMR1" DCS FAT commission included the representatives of Zaporozhye NPP. The "Vulkan-MRMR1" DCS is planning to be implemented at Zaporozhye NPP within the period of April 20 – 25, 2003.

Seismic Stable NPP Operator Workstation
Development and Test Is Completed

April 9, 2003

Westron has completed the development and seismic test of the workstations with desktop 20.1" liquid-crystal display. The workstation retains its operability before, during and after MSK–64 scale earthquake intensity 7 for elevation up to 70 meters or MSK–64 scale earthquake intensity 8 for elevation up to 13 meters. The requirements for seismic stability at safe shutdown earthquake (maximum calculated earthquake) meet the requirements specified in regulatory documents of Ukraine and Russia for NPP Safety System hardware.

The specific bracket for the display fastening allows operator to place the display with the comfortable tilting angle of 0°…15° and bend it within the range of –30°…+30° without reducing of the seismic stability of the workstation.

The first shipment of the seismic stable workstations is planning for Zaporozhye NPP Unit 1 Radiation Monitoring System in April 2003.

Leningrad NPP SPDS Equipment Manufacture Has Been Completed

April 7, 2003

Westron has completed the manufacture and testing of the equipment for the Safety Parameter Display System (SPDS) for Leningrad NPP. Westron performed all SPDS equipment assembly, installation and test works during six months in Sosnovy Bor (Russia).

Zaporozhye NPP Unit 1 Simulator SPDS Works
Have Been Successfully Completed

April 4, 2003

Westron has manufactured and supplied to ZNPP the workstation enclosures for the ZNPP Unit 1 Full-Scale Simulator Safety Parameter Display System (SPDS). The final assembly of the SPDS workstations was provided in ZNPP Training Center. Thus, Westron has fully completed integration, testing and verification of SPDS as the integral part of the ZNPP Unit 1 Full-Scale Simulator.

Works for Russian NPPs

April 3, 2003

In March Westron completed the manufacture of the workstations to be supplied to Volgodonsk NPP and certified them in UkrSEPRO system. These works were performed within the Agreement on Development and Supply of Gateway System for Volgodonsk NPP concluded between Westron and Research Institute for Nuclear Power Plant Operation (VNIIAES) (Russia).

Protections Control System's Control Members Status
Display Subsystem has been implemented
at Zaporozhye NPP Power Unit  4

February 13, 2003

Over the period of February 4-10, 2003 in ZNPP-4 performance of start-up works and implementation of Protections Control System's Control Members Status Display System (Emergency Control Room) for VVER-1000 reactor were successfully completed. The subsystem pilot-project was implemented in ZNPP-6 in May 2002. Analogous subsystems are planned to be implemented in ZNPP-1, 2, 3, 5 in the year of 2003. The implementation was accomplished by ZNPP and by Westron (the subsystem's developer and manufacturer).

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