Replacement of the earlier existing Computing&Information System "URAN" (CIS "Uran") at the South-Ukraine Nuclear Power Plant No.1 for a new CIS "Vulkan" developed by Consortium Westron

The start-up and tuning activities at the South Ukraine NPP Power Unit 1 that are directed at commissioning of Distributed Computer System (DCS) developed by Consortium Westron (named as "CIS Vulkan") are about to be completed.
The CIS Vulkan is a new generation of the system intended for modernization of the Computing & Information Systems "Uran" and "Titan" earlier installed at the NPP Power Units equipped with VVER-1000 type reactors. The DCS "CIS Vulkan" meets all the up-to-date requirements on systems of the class and provides to the NPP Main Control Room Operators additional possibilities in exercising monitoring of NPP Power Unit operating conditions.
Also the functions of Turbine-Generator Monitoring System (TGMS) and Safety Parameter Display System (SPDS) are realized by the CIS Vulkan installed at the South-Ukraine Nuclear Power Plant No.1.
Interagency testing of the DCS "CIS Vulkan" is to be conducted within the period of June 15-21, 1998. The tests are to be performed following the direction from the side of the Ukrainian State Nuclear Power Generating Co. "Energoatom" (the Energoatom order No.209 of June 5, 1998).

Delivery of Development Unit (DU)

Westron, within the frames of the VVER-1000 SPDS Program, has delivered a Development Unit for the purposes of the Operation Support Institute (the Ukrainian Agency recently established to provide a support in running of the Ukrainian NPPs). The DU is intended for development and debugging of the software. The DU composition: DPU cabinet, workstations, peripherals, basic software.


Safe Parameter Display System (SPDS) for the Khmelnitsk Nuclear Power Plant

Westron has completed manufacture of a SPDS kit for the purposes of the Khmelnitsk Nuclear Power Plant (Ukraine).

The SPDS kit's composition:
  • two cabinets with the attached to them workstations (based on Sparc-5 and Ultra Sparc). The cabinets and workstations provide for interface with the Power Unit existing systems;
  • four cabinets of the DCS "CIS Vulkan" (intended for data acquisition from field sensors);
  • seven workstations;
  • peripherals.

The cabinet enclosures were manufactured by the Hartron-Plant Co. (a Hartron Co. branch).
The cabinet enclosure applied for the purpose of Distributed Computer System "Vulkan" is actually the enclosure that earlier had earlier been developed by Hartron-Enkos Co. for the purpose of "Veres" but then was modified for the purpose of "Vulkan".
Factory acceptance test (Phase 1 preliminary testing) of the KhNPP Unit 1 SPDS is scheduled for mid-June 1998.

The Steering Committee meeting on the VVER-1000 SPDS Program

The Steering Committee meeting on the VVER-1000 SPDS Program took place at the Consortium Westron on June 3-4, 1998. The meeting attendees: from the Ukrainian side: Energoatom Co., the Ukrainian State Scientific & Development Centre of NPP Monitoring & Emergency Systems, the Ukrainian State Scientific & Engineering Centre of Nuclear and Radiation Safety; from the USA side: Department of Energy, PNNL, Burns & Roe (USA), Westinghouse. In the course of the meeting the issue of the VVER-1000 SPDS Program implementation was given its consideration. The meeting attendees praised high the Westron activities on the SPDS Projects.


Safety Parameters Display System (SPDS) for the Khmelnitsky Nuclear Power Plant-1 (Ukraine)

Factory acceptance tests (Phase 1 preliminary tests) of the KhNPP-1 SPDS were conducted at the Consortium Westron facilities in June, 1998. The tests gave quite a good results.
The SPDS composition:
  • two cabinets with the attached to them workstations (based on Sparc-5 and Ultra Sparc). The cabinets and workstations provide for interface with the Power Unit existing systems;
  • four cabinets of the DCS "CIS Vulkan" (intended for data acquisition from field sensors);
  • seven workstations;
  • peripherals.

The cabinet enclousers were manufactured by the Hartron-Plant Co. (a Hartron Co. branch). The cabinet enclosure applied for the purpose of Distributed Computer System "Vulkan" is actually the enclosure that earlier had earlier been developed by Hartron-Enkos Co. for the purpose of NPP Information & Computing System "Veres", but then this enclosure was given the required modification so it would meet the purpose of DCS "CIS Vulkan".
The SPDS was delivered to the KhNPP at the end of this June and at the moment the required start-up and tuning activities are being carried our at the site.


Modernization of Computing & Information System at the South-Ukraine NPP-1

In compliance with the Contract on the Power Unit-1 CIS Reconstruction (also updating of the related equipment) concluded in 1995 between the South-Ukraine NPP and Consortium Westron the earlier existing CIS "Uran-2M" and Turbine-Generator A701-3 monitoring system were replaced for the developed by Westron the Distributed Computer System "CIS Vulkan".
Interagency acceptance testing of the DCS "CIS Vulkan" was conducted within the period of June 16-18, 1998. These tests were performed following the direction from the side of the Ukrainian State Nuclear Power Generating Co. "Energoatom" (the Energoatom order No.209 of June 5, 1998).
The CIS Vulkan is a new generation of the system intended for modernization of the Computing & Information Systems "Uran" and "Titan" earlier installed at the NPP Power Units equipped with VVER-1000 type reactors. The DCS "CIS Vulkan" meets all the up-to-date requirements on systems of the class and provides to the NPP Main Control Room Operators additional possibilities in exercising monitoring of NPP Power Unit operating conditions.
The DCS "CIS Vulkan" installed in the SU NPP Power Unit 1 also realizes the functions of Turbine-Generator monitoring and of Safety Parameter Display System (SPDS).
The Acceptance Commission came to the conclusion that the SU NPP Power Unit 1 CIS built on the bases of the developed by Westron DCS "CIS Vulkan" is an up-to-date CIS which meets all the Technical Assignment requirements on reconstruction of the earlier existing CIS.
At the moment the SU NPP Power Unit 1 is undergoing testing before the Power Unit restart after a pre-planned outage (scheduled preventive repairs).


Factory acceptance test of the SPDS S/W&H/W intended for Chernobyl NPP Unit-3

The scheduled FAT of the SPDS S/W&H/W intended for Chernobyl NPP Unit-3 was conducted on June 29-30, 1998 at the Consortium Westron facilities. Funds for the Project were allocated by the USA Department of Energy. The USA Westinghouse is the Project Contractor (Manufacturer and Supplier of the required completing parts).
Functional design and software were mutually developed by Westinghouse (USA) and OKSAT NIKIET (Russia, Moscow) (OKSAT NIKIET is branch Co. of Research & Development Institute of Power Engineering (Moscow)).
Consortium Westron developed technical documentation on the hardware, also performed assembling and testing of the SPDS equipment.
The SPDS testing was performed in total correspondence with the FAT Plan. The FAT results proved correspondence of the SPDS S/W&H/W to the Techncial Assignment requirements.
Shipment of the SPDS equipment to Chernobyl NPP is scheduled for this early August.


Commercial running of Computing & Information System "Vulkan" at the South-Ukraine Nuclear Power Plant (Power Unit No.1)

A new and updated Computing & Information System has been in commercial running since June 18, 1998 - that is since completion of interagency acceptance tests. The CIS was built on the basis of Distributed Computer System "CIS Vulkan" developed by Consortium Westron. The CIS was put in operation in the total scope of its functions prescribed by the Technical Assignment on the old CIS reconstruction.
The CIS provided for conduct of the restart testing of Power Unit No.1 after the preventive repairs scheduled for 1998, also for start of this Unit on July, 17 and reaching the installed capacity in conformity with the Safe Operation Regulations. The CIS fitness for work and correspondence to the prescribed requirements were proved for all the operative modes of the Power Unit.
The old CIS "Uran-2M" and Turbine-Generator Monitoring System "A701-03" that were outdated and with their exhausted service lives were replaced with new and updated Distributed Computer System "CIS Vulkan".

The DCS "CIS Vulkan" composition:
9 double Distributed Processing Units (DPUs) (redundant DPUs based on DX 486, data highway controller, flash PROMs with standard algorithms’ library, DIOB, I/O cards’ kit (provides for reception of 2271 analog signals and 3765 discrete signals 15% redundancy included));
5 Operator Stations (Sparc-2 based on VME bus) equipped with color graphic 20" and 27" monitors, standard keyboard, trackball and functional (membrane) keyboard. These 5 Operator Stations are the following ones:
- 2 Operator Stations with three items of 27" monitor and one item of 20” monitor for the purpose of Reactor Control Shift Engineer;
- 2 Operator Stations with three items of 27" monitor and one item of 20” monitor for the purpose of Turbine Control Shift Engineer;
- 1 Operator Station with for NPP Power Unit Shift Chief;

2 communication/computing servers (primary server/backup server; Sparc-2 based on VME bus) equipped with industrial PC (486 DX-100, modules to communicate with Reactor Monitoring System "Khortytsia" and Turbine Control Automated System "ÀÑÓÒ-1000Ð", digital data links (to communicate with adjacent systems, 1.2 MBaud));

2 items of LogServer (primary server/backup server; Sparc-2 based on VME bus) equipped with optical disk drive, matrix printer for alarm system, printer to print reports;
1 Engineering Station/Software Server (Sparc-2 based on VME bus) equipped with a double 20” monitor, 1/4” magnetic tape drive and 3.5" disk drive;
1 network printer (intended for printing of black&white reports and screen copies);
1 jet color network printer (intended for printing of color graphic reports and screen copies);
redundant on-line data highway WESTNET (2 MBaud, transmission of up to 16000 points per second, with guaranteed access, capability to transmit additional 16000 points on request; up to 254 drops at the distance of up to 3 km, coaxial cable);
information highway ETHERNET (10 MBaud, TCP/IP protocol, up to 254 workstations at the distance of up to 2.8 km, coaxial cable, transmission of data files between workstations);
kit of technical facilities to communicate with satellite system of uniform astronomical time (GPS).

The whole cycle of the required activities on disassembling/assembling, autonomous and complex tuning, factory acceptance test and at-site acceptance test (interagency test) was carried out within 30 days - starting from the moment of the Vulkan CIS delivery to the South-Ukraine NPP site.

The following requirements were met while implementing the CIS reconstruction:
preservation of the existing cable connections with sensors and adjacent systems (also with terminal blocks in the cross cabinets of the disassembled systems);
preservation of the existing power supply and air-conditioning systems;
reconstruction of the function of the previously existed system in the disassembled functions at a new quality level, including the following:
- input and initial processing of data (maximum allowed calculated error 0.25...0.5%);
- display of operative information to NPP Main Control Room operator (a new library of graphic symbols, a new system of displays (130 displays), periodicity of renewing of the current technological information in the monitors is 1 second);
- registration (logging) of process points (logging resolution of analog and discrete signals - 0.1 second, the same for initiative discrete signals (logging of events’ sequence) - 0.001 second);
- documenting (96 new types of output reports);
- computation and analysis of technical - economics indexes (new functional algorithms);
- monitoring over water-chemical regimes (new functional algorithms);

expansion of the CIS functions up to the level which meets the normative requirements applied to this class of NPP Information & Computing Systems, the following included:
- implementation of digital data links with the Reactor Monitoring System “Khortitsa” and Turbine Control Automated System “ÀÑÓÒ-1000Ð", also input and processing of data from other systems;
- implementation of digital data link with the NPP Information & Computing System, transmission of data for its processing in the NPP Information & Computing System (the Ethernet highway, TCP/IP protocol);
- computing of 500 additional (not directly measured ) process points;
- realization of specific computing tasks, also of data processing tasks required for the hardware conditions’ evaluation and optimal operation modes’ choosing, exactly:
- analysis of energy release coefficients (Kv), also monitoring over the In-Core Monitoring System sensors;
- computation of water exchange in primary circuit, also prediction of reaching a minimum controlled power level;
- processing of redundant measurements (RMP);
- time averaging;
- flows and levels correction;
- computation of the Power Unit operation modes;
- input and maintenance of the exact astronomical time by means of the GPS satellite system (astronomical time maintenance error is 0.005 sec.);
- realization of SPDS functions in the implementation Phase 1 volume (the SPDS functions’ realization in their total volume is foreseen by means of adding to the quantity of Distributed Processing Units (DPUs), also by increase in quantity of Operator Stations and expansion of the specific software applied for realization of the SPDS tasks - all the above if foreseen to be implemented within the Power Unit short outage (preplanned preventive repairs) period scheduled for 1999.

Regarding the CIS components’ influence exerted upon the Power Unit safety the System is classified as Class 3 System, - in compliance with the Rules prescribed for nuclear power engineering (General Safety Rules-88) (the Russian language name for the Document is “ÏÍÀÝÃ 1-011-89 (ÎÏÁ-88)"). The classification index for the CIS is "3H".

The Distributed Computing System "CIS Vulkan" is supported with Certificate of Compliance, which proves that the product meets all the requirements written in the corresponding normative documents. The Certificate of Compliance was granted to the DDS "CIS Vulcan" by the Certification Agency "Certatom" (this Agency a Department of the Ukrainian State Ministry of Ecological Safety).

The documentation on the CIS was subjected to examination by the Ukrainian Scientific & Engineering Center of Nuclear Safety Administration (this Center is a Department of the Ukrainian State Ministry of Ecological Safety). The documentation examination proved that the CIS meets requirements of the norms and rules currently valid for NPP Information & Computing System building and implementation. The Technical Assignment on the CIS reconstruction, also the DCS "CIS Vulkan" Specifications are agreed with both the Ukrainian State Nuclear Power Generating Co. "ENERGOATOM" and the Department of Nuclear Power Installations' Licensing (this Agency is within the Ukrainian State Ministry of Ecological Safety). The DCS "CIS Vulkan" hardware has been subjected to procedure of special acceptance by the Ukrainian State Quality Assuarance Center (this acceptance procedure is obligatory for all the products intended for NPPs). The CIS acceptance proved that the product corresponds to the contents of the DCS "CIS Vulkan" Specifications.

None of the System's failures were registered since this new CIS had been commissioned.


Time Code Conversion Unit

Sample of Time Code Conversion Unit (TCCU) was successfully tested at SUNPP Unit 1 on August 4-7, 1998.
TCCU is a specific unit designed for reception of time signals from GPS interface equipment, generation and transfer of time signals in specific format onto existing I&C systems. TCCU implementation on Power Unit with GPS interface equipment allows to provide time synchronization of operation of the existing and newly connected computation systems and to refuse from presently applied synchronizer ×7-43.
The necessity of application of alternative synchronization devices is defined by the following reasons:
  • In a number of organizations life-time of synchronizers ×7-43 expired or will expire in the nearest future.
  • Presently, synchronizers ×7-43 are not manufactured and their maintenance is not provided.

The expediency to synchnonize computer devices from GPS with the use of TCCU is defined by the following:
Presently, there are no available adequate devices capable to replace synchronizer ×7-43.
GPS is constant and reliable source of time signals. As a rule, in field of vision several satellites are available.
High accuracy of time support (typical error 0.5 õ 10 -8 sec.).
Availability of several companies providing with the reliable antennas and unified GPS interface modules.
Simple construction and small dimensions of antenna.
Wide range of GPS interface modules designed for their installation in various computational devices (industrial and office PCs, workstations based on Sun PCs, including stations with VME crates).
GPS interface module automatically changes its external synchronization mode (GPS antenna) for autonomous mode in case of GPS satellite communications failure.
Availability on GPS interface module of various standard electrical output interfaces applying standard IRIG B data transfer format.
Possibility to synchronize all GPS interface modules installed in various Power Unit I&C systems from one of them with antenna through standard interface.
TCCU allows simple connection of the existing systems to GPS.
Possibility to apply basic GPS interface equipment and its unified output interface for synchronization of newly developed or updated systems.


Conditions for TCCU operation
Power voltage, V 187...242
Power frequency, Hz 50± 1
Ambient temperature, ° C 10...35
Humidity, % 20...80
Atmosphere pressure, kPa 84...106.7


Quality Assurance Inspection

On September 8-10, 1998 in Westron representatives of Westinghouse Quality Assurance Service inspected Chernobyl NPP Power Unit 3 hardware quality assurance and its readiness for shipment to Chernobyl NPP Power Unit 3.

The inspection results are positive. Before this inspection ChNPP Unit 3 hardware was accepted by Westron's Quality Assurance Service and by State Quality Center of Ukrainian Ecological Safety Ministry.


Chernobyl NPP Power Unit 3 SPDS Distributed Computer System Shipment

On September 17, 1998 Westron supplied Safety Parameter Display System (SPDS) Distributed Computer System to Chernobyl Power Unit 3.
Shipment scope:
  • 23 connected DPU cabinets for data acquisition and processing
  • 4 relay cabinets
  • 5 workstations performing functions of Computation Servers, Engineer station, and HSR/Log servers
  • 2 Operator stations in console enclosure for their location in MCR

Works on SPDS equipment installation supervised by Westron have started. SPDS for Chernobyl NPP was developed by RDIPE (Russia), Westinghouse (USA), and Westron (Ukraine). SPDS functional design and application software are developed by RDIPE developed RBMK reactor.  Westron developed technical documentation on SPDS hardware, manufactured and tested it. The project is financed by USA Energy Generating Ministry.
SPDS commissioning at Power Unit 3 is planned in autumn this year.

Functional Design Team Activities

In September VVER-1000 SPDS functional design team worked in Westinghouse Nuclear Projects Division. These works aimed at completion of SPDS functional project for Khmelnitsky NPP Unit 1 and Zaporozhye NPP Unit 5 which is expected to be implemented on second phase of these projects.

Functional design team includes representatives of Ukrainian NPPs, Westron, and Westinghouse, etc.

Four year of Westron's foundation

On September 29 Westron will selebrate four year of its foundation. All these years Westron's main goal was and remains work for our main Customers - Ukrainian Power Plants. We are trying to develop systems required for NPPs, take into consideration all requirements of our Customers applying modern technologies and approaches.
In 1998 Westron jointly with other organizations performed the following works:
  • "Uran 2M" CIS and A701-3 Turbogenerator Monitoring System hardware were replaced by "Vulkan-IVK" Distributed Computer System at South Ukrainian NPP Unit 1.
  • Manufacture and supply SPDS to Khmelnitsky NPP Unit 1 and Zaporozhye NPP Unit 5.
  • Supply Development Unit for SPDS software development and verification to NPP Operation Support Institute.
  • Manufacture and supply of SPDS for Chernobyl NPP Unit 3 (RBMK).

We are optimistic in our future and hope that good relations and cooperation with our Customers will be developed and get stronger.

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