SPNG · Engineering, consulting, service

Engineering activities

Power system studies, protection engineering, design services and problem solving for electrical power systems.

Basic Network Analysis

  • Load flow and load balance
  • Short-circuit studies
  • Motor-starting studies
  • Transformer and on-load tap changer sizing
  • Harmonic analysis

Transient Study

  • Electromechanical transient stability
  • Electromagnetic transient studies

Protections System Engineering

  • Definition of protective functions
  • Current and voltage transformer verification
  • Relay coordination studies

Additional Study and Service

  • Grounding-grid dimensioning
  • Grounding-method definition
  • Arc-flash analysis
  • Fault investigation
  • Reliability assessment

Engineering Service

We develop engineering documentation for the purchase of main electrical equipment, including transformers, generators, switchgear and motors.

  • Basic, detailed and construction engineering
  • Electrical procedures
  • Technical specifications
  • Conceptual design and design criteria
  • Sizing and data sheets of main equipment
  • Purchase requisitions
  • Logic diagrams
  • Key single-line diagrams
  • Assistance with client interfaces

Problem Solving

  • Fault investigation
  • Analysis of events recorded by protection relays
  • Analysis of operational problems and definition of possible solutions
Network model and motor-starting study
Network modelling and motor-starting analysis.
Transient analysis model
Transient study model and simulation outputs.

Let’s discuss your project.

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