End-to-End Protection & Control Engineering
From initial design through final energization, YUD.TET Engineering delivers complete protection and control solutions for high, extra-high, and ultra-high voltage power infrastructure.
Protection & Control System Design
Rigorous engineering of protection and control schemes for HV, EHV, and UHV substations — from concept through detailed design documentation.
Scope of Work
- Protection philosophy development and relay coordination studies
- Single-line diagram (SLD) and secondary schematic design
- Relay setting calculations and coordination reports
- Control and interlocking logic design
- IEC 61850 GOOSE and sampled values architecture
- Full documentation packages to IEC and IEEE standards
Substation Secondary Systems Commissioning
Systematic commissioning of all substation secondary systems — ensuring every protection and control function operates correctly before and during energization.
Scope of Work
- Factory Acceptance Testing (FAT) of protection panels and relay systems
- Site Acceptance Testing (SAT) and pre-commissioning checks
- Protection relay functional testing and injection testing
- SCADA and RTU interface verification
- Control and interlocking scheme verification
- Energization support and first-fault analysis
Relay & Annunciator Supply
Authorized supply of precision protection and alarm equipment from leading European manufacturers, with full application engineering support.
Scope of Work
- ARCTEQ protection relays — full range, authorized distributor (Finland)
- EES alarm annunciators — full range, authorized distributor (Germany)
- Technical selection and application engineering support
- Relay configuration and parameter setting services
- Post-delivery commissioning assistance
- Spare parts and replacement unit supply
Our Engineering Process
A structured, stage-gated approach that ensures quality and traceability at every phase of the project.
Requirements & Scope
We begin with a thorough review of network topology, fault levels, protection philosophy, and client specifications to establish a clear engineering scope.
Design & Documentation
Protection schemes, relay settings, SLDs, and control logic are developed and documented to the applicable IEC or IEEE standard, with full traceability.
Factory Acceptance Test
All panels and relay systems are tested at the factory against the approved design documentation before shipment to site.
Site Commissioning
On-site testing, verification, and integration of all secondary systems — culminating in energization support and handover to the operations team.
Discuss your project requirements
Whether you are at the design stage or approaching commissioning, our engineers are available to assess your requirements and propose a tailored solution.
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