Izvestiya vuzov. Yadernaya Energetika

The peer-reviewed scientific and technology journal. ISSN: 0204-3327

Comprehensive measurement of diagnostic parameters of equipment at the power unit № 1 of Novovoronezh NPP ii in the process of pilot operation

10/02/2017 2017 - #03 Global safety, reliability and diagnostics of nuclear power installations

Fedorov A.I. Slepov M.T.

DOI: https://doi.org/10.26583/npe.2017.3.07

UDC: 621.039.4

The use of a large number of measuring systems at the stage of commissioning of reactor facilities is a feature of the commissioning of nuclear power plants in our country and on domestic projects abroad unlike foreign experience, where professionals focus more on design rationale, and the commissioning of full-scale tests carried out in smaller amounts [13, 14]. Application during commissioning, the various measuring systems requires the involvement of a large number of staff from different organizations, often not coordinating among themselves work at various stages of the start-up process that ultimately leads to multiple duplication (mounting, installation, commissioning) as measurement channels and the received information, which is one of the sources of distortion, and a substantial increase in the cost of work. At the same time, most modern units are equipped with systems of technical diagnostics (STD) [1 – 3], consisting of a variety of measuring channels. The above problems have been partially solved with the commissioning of the new innovative generation Unit 3+ at the site of Novovoronezh NPP. In [4] is briefly affected by technical decisions, allowed to perform a series of joint measurements on the power Unit № 1 of Novovoronezh NPP II (Unit № 6 in old classification), which should stop in more detail with the aim of collecting experience and replicate it at other nuclear power plants. Distinguishing feature of the present study is the attempt to combine disparate local systems into a unified information system allowing use of the maximum number of standard channels simultaneously with dedicated measurement channels temporarily installed for the commissioning in order to obtain reliable and quality information about the status of the power units.


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commissioning vibration control VVER-1200 technical diagnostics vibration control system commissioning measurement portable analyzer acoustic standing waves natural frequency a function of the coherence phase characteristics the oscillations of the pendulum type