Nuclear Area

In-house designed Nucleonic Instrumentation

The in-house product line of nucleonic instrumentation covers all neutron flux and gamma flux measurement requirements in Nuclear Power Plant cores qualified as IEEE Class 1E for safety critical applications.

The mentioned integral system is a line of electronic chains aimed at receiving signals from standard and wide-range (Campbellian mode) fission counters, compensated and non-compensated ionization chambers, gamma chambers, and Self-Powered Neutron Detectors (SPND).

This is an evolutionary design from the lately 1970s, when necessary changes were made to eliminate dependency on critical components of early obsolescence probability and at the same time to add more features commonly required at “up to date” instrumentation systems.

The standard product line includes:

  • Source/Start-up channel (FC)
  • Intermediate channel (IC)
  • Power channel (IC or CIC) 
  • Wide Range log and linear auto-range channel (WRFC)
  • Gamma measurement channel (IC)
  • SPND channel (SPND)

INVAP I&C Key Features:

Custom Design | From Requirements Specification to Commissioning (SAT).
Qualification Capability | IEEE Class 1E | Extended Qualification capabilities available.
Engineering Services | Support  for Whole I&C life cycle.
Integration, Installation, Commissioning | From Manufacturing Facilities to whole Integration & Testing (FAT) Installation at the site with subcontractors, Commissioning Services.

Engineering Services

Steps of Engineering Services:

  • Requirements – Design Inputs
  • Preliminary Engineering
  • Detail Engineering
  • As built Engineering

Preliminary Engineering:

  • Preliminary P&ID´s
  • Description of Systems
  • List of Components
  • Data sheets
  • Support Reports to Safety Analysis Report

Detail Engineering:

  • P&ID´s
  • Consolidated List of Components
  • Consolidated Data Sheets
  • Loop Diagrams
  • Installation Engineering
  • Pre-operational Procedures
  • Commissioning Procedures

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