Westron's Information Bulletin No. 3 (August 1998)

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The old CIS "Uran-2M" and Turbine-Generator Monitoring System "A701-03" that were outdated and with their exhausted service lives were replaced with new and updated Distributed Computer System "CIS Vulkan".

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;

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.

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 “АСУТ-1000Р", 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 “ПНАЭГ 1-011-89 (ОПБ-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.


		Main Page -=- Site Map	Русская версия
General Information Our News Production Reference List Quality System Service Center Links Photo & Video Mass-Media Bulletins	Information Bulletin No. 3 (August 1998) 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 "АСУТ-1000Р", 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 “АСУТ-1000Р", 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 “ПНАЭГ 1-011-89 (ОПБ-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.
			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