✓ MIEAust CPEng NER RPEQ

✓ Fully qualified with 18 years experience

✓ Full CDEGS software capability

✓ Full on-site earthing testing capability

✓ Expert in safety risk management, and due

diligence engineering

✓ Active involvement in Australian Standards -

AS 2067 earthing subcommittee

✓ Servicing Australia — Rapid mobilisation for

soil testing and current injection testing

✓ Competitive rates — Affordable access to the

highest quality earthing services

✓ Passionate in knowledge sharing

✓ Friendly, Flexible, Proactive, Reliable

CORE COMPETENCIES

EARTHING SYSTEM DESIGN

• Multilayer soil resistivity modelling • CDEGS earth grid modelling and simulation of earth faults • Modelling high voltage feeders to determine current splits in

cable screens and overhead earth wires • EPR, touch, step and transfer voltage mitigation • Safety criteria calculated from AS2067, ENA EG0 (ARGON), AS/

NZS 60479.1 and due diligence requirements under the WHS act.

• Safety in Design (SiD) & Safety in Construction Support • AC and DC traction earthing and bonding

EARTHING SYSTEM TESTING

• 4-Probe Wenner Method soil resistivity testing using a Syscal • Low-current off-frequency Current Injection Test (CIT) • Fall of Potential / 3 point Impedance Test • 4-Probe Continuity Test • ITP / QA / Earth Grid Installation Verification • Earthing and Lightning Protection System Audits

LIGHTNING PROTECTION SYSTEM (LPS)

• AS/NZS 1768 Rolling Sphere Method • SESShield-3D computer modelling • Specification of air terminals, down conductors, earth termina-

tions and surge protection

LOW FREQUENCY INDUCTION (LFI) & EMI STUDIES

• AS/NZS 4853 Level 1, 2, 3 compliant studies— hazard analysis, risk assessment and touch voltage mitigation design for water and gas pipelines

• Water Corporation DS23 compliant pipeline studies • Assess electromagnetic field emissions from AC and DC power

cables for IEC 61000, APRANSA and ICNIRP compliance

POLICY, STANDARDS DEVELOPMENT AND TRAINING

• Inhouse training courses: Tailored safety in construction, maintenance testing, earthing design, earthing testing, earthing risk management and guidance on due diligence obligations un-der the WHS act

• Drafting of Earthing Standards • Formulating earthing safety management plans for industry

ABOUT HV EARTHING The Hunter Valley in New South Wales has played a pivotal role in the development of the earthing industry in Australia. HV Earthing (HVE) is proud to continue the tradition by championing the field of earthing and providing the highest quality earthing system design, test, EMI and lightning protection services to our clients throughout Australia.

ABOUT HV EARTHING www.hvearthing.com.au P1/5

WHY USE CDEGS?

✓ Industry leading software that has been veri-

fied and validated against field tests, analytical methods and independent published research since 1978

✓ CDEGS is the prescribed earthing software at

most of Australia’s utilities

✓ CDEGS desktop analysis minimises the need

for rework and expensive re-tests

✓ CDEGS designs minimise wastage — Safe

earthing systems are installed with minimum labour and materials costs

HVE DESIGN PROCESS SOIL RESISTIVITY TEST

• Do a Dial Before you Dig (DBYD) search and create a site specific test plan

• Perform multiple 4-Probe Wenner Method soil resistivity test profiles on site using a Syscal resistivity tester

• Utilise CDEGS RESAP module for the inversion of test data to create multi-layer soil resistivity models

EARTHING SYSTEM DESIGN

• Site visit to perform a visual hazard assessment of third-party assets affected by the proposed earthing system

• RFI to obtain relevant input data such as earth fault levels, clearance times, power system parameters, site layouts, etc

• Determine touch and step voltage safety criteria based on the applicable standards and due diligence requirements under the WHS act

• Develop 3D CDEGS models of the earth grid, HV cables, over-head power lines, third-party infrastructure, etc

• Simulate single phase and double phase to earth faults on every HV feeder

• Compute current splits in all earth screens and overhead earth wires and determine the earth potential rise (EPR)

• Mitigate touch and step voltages by applying the hierarchy of controls

• Provide Safety in Design (SiD) & Safety in Construction support

• Provide detailed earthing report including all inputs, outputs, design specifications and compliance to the relevant standards

• Provide general arrangement earthing drawings, connection diagrams and details

LOW FREQUENCY INDUCTION (LFI) & ELECTROMAGNETIC INTERFERENCE (EMI) STUDIES

• Identify sensitive receivers • Construct 3D CDEGS models of earth grids, cables and

powerlines and simulate normal load and earth faults to determine touch voltage hazards on conductive third-party assets and provide mitigation specifications as required

• Perform EMI studies to determine the electric and magnetic field emissions from AC & DC power cables / overhead lines and assess for compliance against APRANSA, ICNIRP, ENA guidelines and IEC 61000 standards

LIGHTNING PROTECTION SYSTEM (LPS) DESIGN

• Carry out AS/NZS 1768 Risk Assessment to determine if a LPS is required

• Construct SESShield-3D models based on the physical arrangement of building or HV plant

• Apply the AS/NZS 1768 Rolling Sphere Method to design LPS for Protection Levels I, II, III and IV

• Produce a detailed report and drawings specifying the position and height of the air terminals, location of down conductors and earth terminations as required

EARTHING DESIGN, LFI & LIGHTNING HV Earthing has the experience and knowledge to get the job done right the first time

EARTHING DESIGN, LFI & LIGHTNING www.hvearthing.com.au P2/5

TEST EQUIPMENT

✓ HVE IS EQUIPPED FOR RAPID MOBILISATION

ANYWHERE IN AUSTRALIA

Iris Instruments - Syscal Kid - High Power - Switched DC

Red Phase —Current Injection Test set and GPS synchronised tuned voltmeter

HVE TESTING PROCESS PRE– TEST PREPARATION

• Do a Dial Before you Dig (DBYD) search • RFI to obtain relevant input data such as earth fault

levels, clearance times, power system parameters, site layouts, etc

• Create a site-specific test plan. Ensure location of re-mote earth and current injection lead minimise test errors

• Produce site specific test sheets to make sure no haz-ards are missed while on site

• Assess existing hazards due to EPR and LFI around live substations to ensure test circuit is as safe as possible for staff and general public

ON SITE TESTING • Set up test circuit. Temporary test leads may be used

or alternatively, an out-of-service HV feeder may be used as part of the injection circuit.

• Set up barricades and insulation to protect staff and public from voltage hazards during testing

• Visual inspection of earth bond integrity, transformer neutral connections, location and effectiveness of fence isolation sections, condition of surface layers, e.g. crushed rocks, asphalt, check accuracy of as-built and mark-ups

• 4 wire continuity testing between main earth bar and items of metallic plant

• Measure earth potential rise and soil voltage gradi-ent, touch voltages, step voltages, transfer voltages, current splits (magnitude and phase angle), touch voltages to third-party assets such as telecommunica-tions, pipeline valves, and fences

• Perform Wenner soil resistivity test if soil model is not already known so that touch voltage limits can be computed

• Take photographs of non-compliances

POST TEST CDEGS CORRECTION MODELLING

• Construct a CDEGS model of the substation and test circuit and run simulations to validate the model by matching test EPR, and current splits. This model is used to correct for any errors due to inductive cou-pling and mutual earth resistance

• Using supplied network data, model the incoming and outgoing HV feeders and simulate the worst-case earth fault scenario in CDEGS to accurately calculate the EPR and touch voltages

• Draft test report utilising geographic information sys-tems to present test data clearly

• If required, prepare remedial action plan to repair damaged or corroded earthing system components

• If required, apply hierarchy of controls to mitigate non-compliant voltage hazards in accordance with the relevant standards

TESTING & VERIFICATION Current injection testing is our speciality. Trust HV Earthing to test your earthing system to the highest accuracy and be confident all touch voltage hazards have been identified

TESTING & VERIFICATION www.hvearthing.com.au P3/5

Anthony Kracyla MIEAust CPEng NER RPEQ is the director and principal electrical engineer at HV Earthing. He received his Bachelor of Electrical Engi-neering (with Honours) and Bachelor of Science (Physics) from the University of Newcastle, Australia in 2000/2001. Anthony has worked as an electrical engineer at a leading earthing consultancy for over 18 years, where he played a key role in developing the company’s capabilities in earthing system design, earthing system testing, lightning protection design, Low Frequency Induction (LFI) and Electromagnetic Interference (EMI) assessments.

Anthony is highly skilled in modelling complex electrical systems using CDEGS software. His capabilities include EPR, touch and step voltage hazard assessments, earthing designs, current injection testing of transmission and distribution substation earthing systems, lightning protection system design as well as AC interference / LFI studies to calculate and mitigate the touch voltage hazards on metallic water and gas pipelines.

Anthony is actively involved in policy and standards preparation. He is cur-rently a member of Standards Australia Subcommittee EL-043-01 which focuses on the earthing section of AS 2067.

KEY STAFF PROFILE www.hvearthing.com.au

INDUSTRY EXPERIENCE DEFENCE

• Earthing system design, earth grid inspection and current injection testing for over 60 substations at air force and navy bases

• Earthing system and lightning protection system audit and current injection testing at remote communications sites

WATER & GAS

• Drafting a water utility earthing and AC interference standard

• AC interference analysis / LFI studies and mitigation designs for over 50 water and gas pipelines around Australia

• Earthing system design, lightning protection design and current injection tests for desalination plants, water pumping stations, treatment plants, dams, reservoirs and gas facilities around Australia

• Validation testing by current injection over out-of-service overhead feeders (330kV, 132kV and 66kV) to directly measure induced voltages

• Mitigate AC corrosion

POWER UTILITIES

• Current injection testing of 500kV and 330kV bulk supply points, power stations and transmission substations

• Earthing system design and commissioning testing for many zone substations and distribution pad mounts.

RENEWABLES

• Solar, wind and hydro

• Soil resistivity testing

• Earthing system and lightning protection design

• Commissioning current injection testing

• AC interference analysis / LFI studies and mitigation designs to mitigate hazardous touch voltages on gas pipelines due to tie-in power lines

RAIL

• Drafting a rail earthing design standard to satisfy due diligence requirements under the WHS act.

• Earthing system design, current injection testing, soil resistivity testing, modelling of 66kV / 33kV / 11kV cable and overhead net-works for over 70 traction substations and padmount substations on the Sydney Trains network

• Current injection testing and modelling AC traction systems to calculate and mitigate AC interference

• Dynamic modelling of DC current distribution in catenaries, con-tact wires and droppers to calculate temperature rise

MINING

• Earthing system design, lightning protection design and current injection tests for main intake substations, mobile substations, distribution substations at coal and metalliferous mine sites and quarries across Australia

• Incident investigations

• Routine earthing testing

• Time domain modelling of lightning impulses and quantifying the transfer of lightning energy to the underground workings via bore-holes and related services

• AC interference / LFI studies to mitigate the induced touch voltage hazards on underground equipment due to transmission lines traversing a mine site

PORTS

• Earthing system audits, soil resistivity testing, lightning audits, HV earthing system design and lightning protection design for passenger terminals and coal loaders

For more details on the projects I have worked on, click on the LinkedIn icon below

KEY STAFF PROFILE

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CONTACT US www.hvearthing.com.au

CONTACT US

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GOT QUESTIONS?

WE HAVE THE ANSWERS...

NAME : Anthony Kracyla MIEAust CPEng NER RPEQ

PHONE: 0411 859 025

EMAIL: tony@hvearthing.com.au

WEB: www.hvearthing.com.au