Protection and control

The problem this solves

Protection is where a design error becomes a safety event. Schemes must clear faults fast enough to protect people and plant, discriminate so healthy circuits stay on, and be documented so they can be set, tested and maintained for decades. Modern IEC 61850 substations add a communications layer that must be engineered with the same discipline.

Project types we support

• Protection schemes for new and extended substations, 11 kV to 400 kV
• Protection replacement and relay upgrade projects
• IEC 61850 digital substation designs
• Generator, interconnector and private network protection

Design, calculation and study work

• Protection studies and settings calculations
• Scheme design and protection block diagrams
• Bespoke scheme logic design
• IEC 61850 system configuration and signal engineering

Deliverables

• Protection scheme designs and settings files
• Panel designs, wiring diagrams and schedules
• Bespoke scheme logic with documented functional descriptions
• Panel assembly and testing
• IEC 61850 configuration and documentation

How this reduces risk

Correct, coordinated protection is a safety control as much as an engineering deliverable. Independent checking of settings and logic, and testing before despatch, reduce the risk of unstable schemes, nuisance tripping and uncleared faults, and give commissioning engineers documentation they can rely on.

Why appoint Saqib Engineering

We design the scheme, engineer the logic and deliver the tested panel as one scope with one accountable team, rather than splitting design intent from implementation across suppliers.