Equipment Selection

Equipment selection is not a catalog-based choice — it is a critical engineering decision that directly affects system reliability, cost, and performance.

Mistakes at this stage lead either to overdesign (excess CAPEX) or insufficient reliability and increased failure risk.

Approach

Equipment selection is based on a digital power system model and engineering study results.

The evaluation includes:

• actual operating conditions
• fault and transient scenarios
• interaction with other system components
• process-specific requirements

Each decision is assessed in the context of the entire system, not in isolation.

Selection principles

• Based on operating conditions, not nominal ratings
• Consideration of fault scenarios
• Balance between reliability and cost
• Elimination of unnecessary overdesign
• Verification of equipment compatibility

When it is applied

• during design of new facilities
• when selecting key equipment
• when optimizing project cost
• during system modernization
• when replacing equipment

Strengths of the approach

• Engineering-based selection instead of conservative assumptions
• Reduced capital costs
• Consideration of real operating conditions
• Minimization of failure risks
• Ability to compare alternative solutions

Typical tasks

• selection of transformers, cables, and breakers
• rating verification against load and fault duties
• selection of redundancy level
• comparison of alternative solutions
• assessment of system impact of equipment choices

Positioning

We do not simply select equipment — we determine the right solution for the system.

The result is an optimal balance between cost, reliability, and project requirements.