Over 20 years of experience in power sector! Technical expertise & refurbishing offered to hundreds of large power transformers and primary equipment of 110-750 kV! NOVA INDUSTRIAL S.A. was the official consultant of CNTEE Transelectrica, for the period 2015-2018, in the field of “Power Stations”, for the second consecutive time after the period 2011 – 2014! Our know-how, for your safety !

HES 6 – Humidity Expert System

Humidity Expert System (HES) – 6 implements six methods to investigate the moisture content of solid insulation of cars / transformers:

  1. Method 1: based on measuring the water content in the oil;
  2. Method 2: based on the measurement of the insulation resistance of the windings, respectively of the tangent of the dielectric loss angle and of the relative dielectric permittivity of the oil;
  3. Method 3: based on measuring the tangent of the dielectric loss angle of the winding and oil insulation;
  4. Method 4: based on measuring the return voltage (RVM method);
  5. Method 5: based on determining the degree of water saturation of the oil;
  6. Method 6: based on the measurement of polarization / depolarization currents (PDC method).

Implemented application:

  • generates reports with the general data and the obtained results (with the possibility to choose the methods included in the report);
  • has the possibility to add a new method of investigation, within the same expertise.

Technologies used: Visual C++, Windows API, SQL.

HES 6 - Humidity Expert System