These systems involve complex reactive compensation, harmonic mitigation, and specialized protection and switching components and require product-specific technical expertise. Our experienced technicians ensure that equipment is brought online correctly and performs as intended under actual site conditions, identifying potential issues before they escalate into operational failures.

Comprehensive Technical Scope of Services

VarStec supports the full equipment lifecycle, from delivery through live testing and personnel training. Detailed commissioning records, including field reports and as-left checklists, are maintained at each milestone to ensure technical traceability and support final turnover.

Phase I: Pre-Mobilization & Documentation

Prior to site arrival, VarStec streamlines field execution by developing equipment-specific start-up and shut-down procedures. We coordinate with site contractors to confirm installation readiness and equipment arrival, reducing the risk of mobilization delays.

Phase II: Pre-Commissioning Verification

During this phase, our technicians perform a rigorous physical and electrical integrity check:

  • Integrity Inspection: Verification of equipment for shipping or handling damage with on-site repairs as necessary.
  • Electrical Validation: Confirmation of internal and external power, grounding, and control wiring.
  • Safety Readiness: Final verification of the installation to ensure readiness for safe energization.

Phase III: Functional Commissioning & Energization

VarStec executes a structured power-up sequence to validate control logic and system performance:

  • Control System Validation: Control panels, meters, and protection relays are brought online to verify they are functioning properly and correctly set.
  • Supervised Energization: VarStec oversees the energization of high-voltage equipment.
  • In-Situ Performance Evaluation: Equipment performance, including plant interfaces, communications, and control configurations, is evaluated under live plant operating conditions against project design objectives.

Phase IV: Post-Commissioning & Optimization

Following initial energization, VarStec provides ongoing technical support to align the system with long-term site requirements:

  • System Optimization: Software or settings adjustments are performed to ensure optimal performance.
  • Personnel Training: Site personnel receive technical training on the specific operation and maintenance of the MV equipment.
  • Performance Review: Final review of system data to ensure compliance with reactive compensation and harmonic mitigation goals.

Technical Specifications & Scope

Compliance & Standards

All start-up and commissioning activities are performed in accordance with applicable industry standards to ensure system reliability and safety:

  • IEEE 18-2012/IEEE 1036-2020: Shunt Power Capacitor Standards
  • IEEE 519-2022: Harmonic Control in Electric Power Systems
  • NETA ATS-2025: Standard for Acceptance Testing Specifications

Equipment Coverage

VarStec provides product-specific technical expertise for the following medium-voltage systems:

  • Metal-Enclosed Capacitor Banks: Fixed and automatic configurations.
  • Harmonic Filter Banks: Single Tuned/Multi-Tuned, Notch, HP, C-HP
  • MotorVAR™: Specialized motor-starting and reactive compensation solutions.
  • Control & Protection Systems: Specialized control, protection, and switching, and communication components.

Primary Deliverables

Comprehensive documentation is provided to support system turnover and long-term maintenance:

  • Pre-Commissioning Checklists: Documenting physical integrity and installation readiness.
  • As-Left Configuration Records: Final relay settings, controller parameters, and setpoints.
  • Field Service Report: A detailed summary of energization sequences and live-test performance data.
  • Personnel Training Logs: Verification of on-site operator training on equipment O&M.

SHARE