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Technical Service Specification

Complete AIS Substation Installation & Commissioning Services

AIS INSTALLATION & COMMISSIONING

Switch Energy Solutions (SES) delivers end-to-end Air-Insulated Substation (AIS) installation and commissioning services across utilities, industries, and EPC projects. Our engineers ensure mechanical precision, electrical integrity, and safe energization, following IEC/IEEE standards and OEM procedures. AIS systems demand accuracy, alignment, and disciplined execution — SES brings the expertise to deliver it flawlessly.

Complex structured steel works and outdoor Air Insulated Substation line architecture panels

Equipment Installation & Alignment

Installation of all AIS primary equipment, including the following where we ensure proper alignment, torqueing, and mechanical integrity:

  • Circuit Breakers (CBs)
  • Isolators & Earthing Switches
  • Current Transformers (CTs)
  • Voltage Transformers (VTs/PTs)
  • Surge Arresters
  • Busbar systems
  • Support structures

HV/LV Cable Termination & Routing

Terminal link management protocols:

  • HV cable termination (heat shrink / cold shrink)
  • LV control cable termination
  • Cable routing, dressing & glanding
  • Continuity & insulation checks

Primary & Secondary Testing

Comprehensive testing to verify equipment health and performance:

  • Contact resistance
  • Insulation resistance
  • CT/VT ratio & polarity tests
  • Breaker timing tests
  • Functional & interlock checks

Protection & Control Scheme Validation

Operational checks against protection standards:

  • Relay configuration
  • Logic verification
  • Trip circuit testing
  • Synchronization checks
  • Scheme testing (OC, EF, Differential, Distance, etc.)

SCADA / RTU Integration

Remote grid terminal synchronization pathways:

  • I/O mapping
  • Communication testing
  • Protocol validation (IEC 61850, Modbus, DNP3)
  • HMI integration

Final Energization Support

Safe hand-off to standard grid operations:

  • Pre-energization checks
  • Safety clearance
  • Live energization support
  • Post-energization monitoring
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