Load flow, short circuit, motor starting and relay coordination studies on ETAP.
ETAP is the industry-standard platform for power system analysis. Our engineers build an accurate digital model of your network, from the utility intake to the last motor control centre, and run the studies needed to confirm ratings, protection settings and operating limits.
The outcome is a clear, defendable report: which equipment is under-rated, which breakers will not discriminate, how motors will start, and exactly what to change.
What's included
Load flow analysis
Voltage profiles, losses, transformer loading and power factor under all operating scenarios.
Short circuit analysis
Fault levels per IEC 60909 to verify breaker, busbar and cable withstand ratings.
Motor starting study
Voltage dip and acceleration analysis for DOL, star-delta, soft-starter and VFD starts.
Relay coordination
Time–current curves and protection settings for full selectivity.
Arc flash assessment
Incident energy calculation, PPE categories and arc flash labels.
Harmonic & stability
Harmonic load flow and transient stability for complex networks.
Backed by S.A. Hamid & Co. since 1964
Engineering depth, in-house manufacturing and disciplined site execution from one accountable team.
Our approach
Data collection
Site survey of nameplates, cables, protection devices and settings.
Modelling
Build and validate the ETAP model against measured values.
Simulation
Run studies under normal, contingency and future-expansion scenarios.
Report & settings
Deliver findings, relay settings and implementation support.
Deliverables
- ETAP network model
- Load flow report
- Short circuit report
- Motor starting results
- TCC curves
- Relay setting sheets
- Arc flash labels
- Recommendations report
Frequently asked questions
Your latest SLD, equipment nameplates, cable lengths and sizes, and existing relay settings. If these are unavailable, our team collects them on site.
Yes. The validated model file is handed over, so future modifications can be studied quickly.
Yes. Our engineers can apply and test the recommended settings on site with secondary injection.
Whenever the network changes significantly, such as new transformers, large motors or generator additions, and as a rule every 3–5 years.
