Services Electricity and Instrumentation & Control Process


We have a consulting and technical analysis area, in which we offer our clients services of:

  • Root causes analysis for incidents on switchgear
  • Engineering and calculation studies for power system analysis: Network analysis (short circuit, load flow), protection coordination, harmonics, cables

QATRO’s engineering service is integrated into all of our technical areas:

  • Resolution of technical queries
  • Editing and review of technical documentation
  • Innovation and development of specialized tests


Electrical assembly and I&C. Support and technical direction in tests and commissioning.

We carry out an exhaustive supervision of the assembly of electricity and instrumentation with a technical control of work and advice according to standards and regulations, with a quality of execution according to the client’s specification, P&IDs, data sheets and adjustments, “as built” review, control delivery / reception of documentation and materials, assembly / engineering incidents, registry of revised protocols, periodic reports on the status-progress of the works, advice on tests and documentation …


We carry out preventive and predictive maintenance of power transformers, surge arresters, measurement and protection transformers, circuit breakers, disconnectors, cables, electrical protections, rotating machines and thermography analysis.

Verification and calibration in the field of process control instruments, functional tests of regulating valves with pneumatic, hydraulic or electric actuators, pressure tests in instrument lines.


Specific within the commissioning of new projects, retrofits or revamping of existing plants.



Execution and complete responsibility for the commissioning of Industrial Electricity and Instrumentation & Control Process in every type of industrial and power plant

Combined Cycles, Thermosolar, Biomass, Waste to Energy, Cogeneration hydroelectric plants, Desulphurisers, Electrical substations, Industrial plants, Refineries

QATRO in association with the specialized company MMYPEM has the capacity, and has done so on several occasions, to offer a Comprehensive Comm Solution:
Mechanics, Electricity, Chemistry, Instrumentation and process control.



+34 881 873 813


Headquarters and offices:

Copérnico 7 – 1º A1 -15008 – A Coruña – Spain