Earthing and Grounding

Typical consultancy services provided by PhysElec Solutions in earthing and grounding for power systems and lightning include, but are not limited to:

Soil resistivity measurements and interpretation.
Soil resistivity modelling, including multi-layer and complex soil structures.
Earthing / grounding system design and analysis for power systems – substations and transmission lines, industrial facilities and sites.
Specialised earthing / grounding system design for transients (lightning discharges).
Design optimisation to achieve electrical safety of personnel and equipment (EPR/GPR, step and touch voltages) in compliance with international standards;
Quantitative, risk-based and deterministic earthing/grounding analysis for power systems (depending on the standard with which compliance is required).
Earthing / grounding designs in compliance with national and international standards;
Earthing / grounding system measurements using current injection test techniques;
Computations of fault current distribution in power system networks.
Capacitive, inductive and conductive interference studies, including EMC analysis and mitigation for pipelines, telecommunication cables, railways etc.
Regular delivery of a comprehensive, professional engineering seminar on earthing, namely:
- Fundamentals of Earthing for Power Systems. (Click here for the next seminar date)

Modelling and computations utilise the world-class CDEGS software suite.

Some of the earthing and grounding consultancy projects PhysElec has delivered to clients include:

Transmission and distribution line earthing/grounding improvements under lightning transients for mission critical sites and facilities, particularly mines and processing plants.
Extensive soil resistivity testing around Australia and overseas.
Development of professional computer models of soil resistivity profiles for clients in all industries.
Standards-compliant earthing/grounding designs for major zone substations and distribution substations in many industries, including a variety of mine sites, power authorities, water authorities, wastewater plants, major airports, recycling plants, port authorities, hospitals, commercial and industrial, distribution centres, etc.
Verification of above-mentioned earthing/grounding system designs via current injection testing for various mine sites, power authorities, water authorities, major airports, recycling plants, commercial and industrial, etc.
EPR/GPR studies of lightning/fault current impact on pipelines for water and gas clients.