MELTAC-Nplus — instrumentation and control systems (I&C) for nuclear power plants
The company supplies instrumentation and control (I&C) systems for monitoring, protection and control of nuclear power plants, from sensors to the main control room. The basis of the safety systems is the digital MELTAC-Nplus platform, which operates at 26 nuclear power units. Qualification has been carried out to the requirements of US and Japanese regulators.
- Composition
- main control room with touch-screen panels, MR real-time computer, OPMS, CBP, MELTAC-Nplus safety system, diverse analog platform, in-core monitoring, cybersecurity
- MELTAC-Nplus applications
- RPS, ESFAS, SLS, NIS (ex-core neutron monitoring), RMS (radiation monitoring), safety VDU
- Experience
- the safety platform operates at 26 nuclear power units
- Qualification
- to the requirements of US and Japanese regulators
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
The systems comply with the safety classifications required by the regulators of different countries. Alongside I&C, the company's range for nuclear plants includes turbine generators, GIS, transformers, generator circuit breakers, pump motors, diesel generators, electrical containment penetrations, switchgear and switchboards, and UPS. Design, manufacture and testing are carried out at the company's plants within its own quality system.
The main control room ergonomically brings all information and control functions together in one place. Operator stations with touch screens display any of hundreds of information formats, and from the same panels the operator controls the equipment of all safety channels and of normal operation. Automation aggregates data and simplifies the tasks of the personnel. The company designs the human-machine interface with account of the NUREG-0711 model.
The MR industrial real-time computer with proprietary software operates in the digital interface HSIS, the power unit control system PCCS, the technical support center TSC, the safety parameter display systems SPDS and the post-accident monitoring systems PAMS. The OPMS system tracks parameter trends, equipment condition and signs of aging, and maintenance is planned on that basis. The computerized procedures system CBP presents the operator with interactive instructions with live unit data.
MELTAC-Nplus was created as a digital platform for safety systems that implements the principle of defense in depth. All hardware modules, basic software and maintenance tools are developed and manufactured by the company itself. The platform performs the functions of the reactor protection system RPS, engineered safety features actuation ESFAS, safety logic SLS, ex-core neutron monitoring NIS, radiation monitoring RMS and safety VDU. The MELTAC-Nplus S version for American nuclear plants was developed under a quality program that complies with 10 CFR 50 Appendix B. For the case of a common-cause failure in the software, a diverse analog platform not based on FPGA is provided.
The company performs electromagnetic compatibility testing itself and verifies that the equipment neither generates interference nor is sensitive to it. The scope of supply also includes in-core monitoring and I&C cybersecurity means. The company carries out modernization of I&C systems at operating plants, and plans to apply MELTAC solutions in small modular reactors as well.
Technical specifications
| Composition | main control room with touch-screen panels, MR real-time computer, OPMS, CBP, MELTAC-Nplus safety system, diverse analog platform, in-core monitoring, cybersecurity |
|---|---|
| MELTAC-Nplus applications | RPS, ESFAS, SLS, NIS (ex-core neutron monitoring), RMS (radiation monitoring), safety VDU |
| Experience | the safety platform operates at 26 nuclear power units |
| Qualification | to the requirements of US and Japanese regulators |
Request a price and lead time
MELTAC-Nplus — instrumentation and control systems (I&C) for nuclear power plants. We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
Customs codes
| UKTZED (Ukraine) | 8537 10 98 00 |
|---|---|
| HS, 6 digits | 8537 10 |
| CN (EU) | 8537 10 98 |
| HTSUS (USA) | 8537 10 91 70 |
| China customs tariff | 8537 10 90 90 |
Codes are for reference: the final code is determined at declaration for the specific model.
Questions and answers
At how many power units does the MELTAC-Nplus platform operate?
According to the manufacturer, at 26 nuclear power units.
Which safety functions are implemented on MELTAC-Nplus?
Reactor protection RPS, engineered safety features actuation ESFAS, safety logic SLS, ex-core neutron monitoring NIS, radiation monitoring RMS and safety VDU.
How is protection against common-cause software failure solved?
A diverse analog platform not based on FPGA is provided. It operates independently of the digital part.
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