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 and automation layer, including SCADA interfaces, 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
• SCADA and substation automation for new and existing sites
• 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
• SCADA and substation automation design and configuration

Deliverables

• Protection scheme designs and settings files
• Panel designs, wiring diagrams and schedules
• Bespoke scheme logic with documented functional descriptions
• SCADA and automation configuration, signal lists and points schedules
• Panel design, procurement support and coordination of assembly and factory acceptance 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 factory acceptance testing before delivery, 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 coordinate panel assembly and factory acceptance testing as one scope with one accountable team, rather than splitting design intent from implementation across suppliers.

Common questions

Do you design SCADA and substation automation?

Yes. We design SCADA and substation automation interfaces alongside the protection and control scheme, including IEC 61850 station and process bus architectures, signal engineering and points schedules, so automation is engineered with the same discipline as the protection it monitors.

Do you build the protection panels yourselves?

We design the panels and manage the panel design, procurement support and coordination of assembly and factory acceptance testing with panel builders. This keeps design intent and implementation under one accountable team without implying an in-house manufacturing facility.

Can you work with IEC 61850 digital substations?

Yes. We prepare IEC 61850 system configuration, signal engineering and documentation for digital substations, and design conventional hardwired schemes where that suits the site, from 11 kV to 400 kV.