Power System Modelling & Studies

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Power System Modelling & Studies

Smart systems start with smart studies.

At Hertz Engineering Ltd, we offer advanced Power System Modelling and Studies to support reliable, safe, and optimized power infrastructure. Our solutions help utilities, industrial plants, and mining operations understand and improve system behavior under various operating conditions. Using industry-standard simulation tools like ETAP, DIgSILENT PowerFactory, and PSS®E, we ensure all studies meet IEC, IEEE, and utility-specific standards.

Key Power System Studies

Load Flow Analysis
  • Evaluates voltage profiles, line/load capacity, and system losses
  • Identifies overloaded equipment or voltage drops
  • Supports network planning and expansion decisions
Short Circuit Studies
  • Determines fault levels at different nodes
  • Essential for protection coordination and equipment selection
  • Compliant with IEC 60909 and IEEE standards
Protection Coordination
  • Relay settings and selectivity analysis
  • Time-current characteristic (TCC) curve evaluation
  • Ensures rapid fault isolation with minimal disruption
Arc Flash Hazard Analysis
  • Incident energy calculations and arc flash boundaries
  • Safety labeling and PPE recommendations
  • Enhances worker safety and regulatory compliance (NFPA 70E/IEEE 1584)
Harmonic Analysis
  • Detects harmonics caused by non-linear loads (e.g., VFDs, UPSs)
  • Prevents equipment overheating and control malfunctions
  • Proposes mitigation measures (filters, tuning)
Motor Starting & Inrush Studies
  • Evaluates voltage dip and recovery during motor starts
  • Supports the selection of starters (DOL, star-delta, soft starters)
  • Ensures network stability during equipment startup
Stability & Transient Analysis
  • Assesses system behavior under sudden disturbances
  • Identifies risks of instability, oscillations, or blackouts
  • Helps design remedial actions and system resilience
Applications
  • Industrial & mining plant electrification
  • Utility grid interconnection studies
  • Generator and transformer sizing
  • Renewable energy integration
  • Substation and switchgear design validation
Our Competitive Advantage:
Power System Modelling & Studies
Skilled engineers with deep power systems expertise
Power System Modelling & Studies
Use of licensed simulation software (ETAP, DIgSILENT, PSS®E)
Power System Modelling & Studies
Reports tailored for engineers, regulators, and non-technical stakeholders
Power System Modelling & Studies
Compliance with Ghana’s GRIDCo and ECG interconnection requirements
Power System Modelling & Studies
Experience with LV, MV, and HV networks (up to 330kV)
Trust Hertz Engineering Ltd for precision-driven modelling that powers confident decisions.

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The company has earned a reputation for excellence and professionalism for continuously striving to meet and even exceed standards which set the climate for a sustainable business relationship with its clients. 

Hertz Engineering Ltd
Contacts
Phc-079-0175,Essipon St.Benedict Junction. Takoradi. Ghana
(+233) 0205 115 425

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