Unlock Precision Grounding & EMI Solutions with CDEGS SW & Keentel Engineering

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April 29, 2025 | Blog

At Keentel Engineering, we know every reliable power system starts at ground level—literally. That’s why our licensed engineers deliver advanced grounding, earthing, EMI mitigation, and electromagnetic-field (EMF) analysis with the world-renowned CDEGS® software suite.


Since its first validation in 1974, CDEGS (Current Distribution, Electromagnetic Fields, Grounding & Soil-Structure Analysis) has been the global benchmark for grounding-grid design, lightning and surge studies, AC/DC interference mitigation, and environmental EMF compliance. Keentel Engineering couples that toolset with 30 + years of HV/MV project experience to give your substation, transmission line, renewable plant, pipeline, or industrial facility field-proven electrical safety.


Why CDEGS® matters

  • Accurate soil & grid modelling – multilayer or exponential soil resistivity, complex conductor networks
  • Fault-current distribution & GPR – touch/step voltage per IEEE 80, IEC 61936
  • Lightning & switching-surge analysis – high-frequency transients, shielding optimisation
  • EMI / EMF assessment – inductive, capacitive, conductive coupling on pipelines, rail & telecoms
  • Environmental impact – corona, RI/AN, EMF reports for permitting and regulatory compliance


When millivolts—and project dollars—count, CDEGS delivers laboratory-validated results trusted by utilities, energy developers, and regulators worldwide.

CDEGS-Driven Engineering Services at Keentel

1 Grounding & Earthing System Design

  • Field soil-resistivity testing (Wenner, Schlumberger, Dipole-Dipole)
  • IEEE 80 / IEC-compliant grounding-grid sizing and optimisation
  • Ground-potential-rise (GPR), touch- and step-voltage assessments

2 Electromagnetic-Interference (EMI) Mitigation

  • AC / DC interference studies for pipelines, railways, telecom cables
  • Right-of-way impact analysis with inductive- and capacitive-coupling models
  • Mitigation layouts and material specs to meet utility limits

3 Lightning Protection & Surge Analysis

  • Shield-wire and mast optimisation for substations and lines
  • Switching-surge and high-/low-frequency transient simulations
  • EMF impact evaluation of direct and indirect lightning strikes

4 Line & Cable Parameter Computation

  • Self / mutual impedance, admittance and capacitance (overhead, UG, pipe-enclosed)
  • Detailed MultiLines® models for fault-current split and relay studies
  • Support for complex meshed or hybrid AC/DC networks

5 Electrical Environmental Impact Assessments

  • Corona discharge, radio-interference and audible-noise predictions
  • EMF exposure reports for public-health and permitting compliance
  • Complete documentation for state and federal environmental filings

From routine grounding checks to multi-frequency surge investigations, Keentel couples CDEGS precision with PE-sealed engineering to deliver actionable, regulator-ready solutions.

Need system-wide load-flow or stability studies? See our Power-System Studies page.


CDEGS modules we put to work

Keentel Engineering taps the full SES-CDEGS toolbox to match each project’s scope:

  • Grounding: AutoGround®, MultiGround®, MultiGround+®
  • Conductor parameters: MultiLines®, MultiLines+® (overhead, underground, pipe-enclosed)
  • EMF & EMI studies: MultiFields®, MultiFields+®
  • Environmental & lightning: SESEnviro® (RI/AN/EMF), SESShield® (shielding)
  • Advanced analysis: AutoGrid Pro®, SESTLC®, HIFREQ, TRALIN, SPLITS, FFTSES

From a straightforward grounding check to a multi-frequency surge-transient investigation, Keentel blends science, software and PE-sealed engineering into actionable, compliant, and safety-focused solutions.


CDEGS-Powered Engineering — Frequently Asked Questions

1 | What is CDEGS?

A field-validated software suite—Current Distribution, Electromagnetic Fields, Grounding & Soil‐Structure Analysis—used for grounding-grid design, EMF/EMI studies, lightning-surge modelling, soil-resistivity analysis and fault-current distribution.

2 | How long has CDEGS been trusted?

Since 1974. Utilities, EPCs and regulators worldwide rely on its peer-reviewed accuracy.

3 | Which services does Keentel deliver with CDEGS?

Grounding/earthing optimisation • EMF assessments • EMI mitigation
• Lightning-shielding & transient studies • Line/cable parameter modelling • Environmental EMF / corona compliance for transmission projects.

4 | Which CDEGS modules do you use?

AutoGround®, MultiGround+®, MultiLines+®, MultiFields+®, SESEnviro®, SESShield®, plus HIFREQ, TRALIN, SPLITS, FFTSES.

5 | Can CDEGS model complex soils?

Yes—uniform, two-layer, multi-layer and exponential profiles, even in dam forebay/tailbay zones.

6 | How are EMI studies performed?

CDEGS quantifies inductive, capacitive and conductive coupling between energized lines and co-located pipelines, rail or telecom cables, then designs mitigation.

7 | Does it handle lightning and switching surges?

Absolutely—MultiFields+ and AutoTransient simulate high-frequency disturbances on networks and grounding systems.

8 | How accurate are CDEGS results?

Validated by field measurements, scale models and independent analytical checks—one of the most proven tools in the industry.

9 | Do you model fault-current distribution?

Yes. We calculate current split among grids, overhead ground wires, neutrals, sheaths and pipelines for complete fault studies.

10 | Which industries benefit?

Transmission & distribution utilities 
• Solar, wind, BESS developers
• Oil & gas pipelines 
• Rail transit 
• Telecom & data-centre campuses 
• Heavy industry.

11 | What touch-/step-voltage analyses can you provide?

Touch, step and ground-potential-rise (GPR) reports compliant with IEEE 80, IEC 61936 or bespoke specs.

12 | Can you help with environmental compliance?

Yes—SESEnviro® studies for radio interference, audible noise, corona loss and EMF exposure.

13 | Does CDEGS integrate with CAD?

DXF import/export streamlines model build; Keentel leverages this for rapid, precise layouts.

14 | How clear are the visuals and reports?

3-D views via SESSystemViewer / GRServer plus narrative, regulator-ready reports.

15 | Do you provide post-study support?

Full hand-off: we walk clients through results, design tweaks and compliance submissions.


Why choose Keentel Engineering

30 + years of power-system know-how – grounding, HV/MV substations, transmission & renewables

Licensed P.E. team – multi-state credentials for design and sign-off

CDEGS precision – field-validated modelling trusted by utilities worldwide

Standards-ready deliverables – reports that satisfy IEEE, NESC, IEC & utility specs the first time

Client-centric workflow – clear updates, firm schedules and on-budget delivery


Ready for CDEGS-grade precision?


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About the Author:

Sonny Patel P.E. EC

IEEE Senior Member

In 1995, Sandip (Sonny) R. Patel earned his Electrical Engineering degree from the University of Illinois, specializing in Electrical Engineering . But degrees don’t build legacies—action does. For three decades, he’s been shaping the future of engineering, not just as a licensed Professional Engineer across multiple states (Florida, California, New York, West Virginia, and Minnesota), but as a doer. A builder. A leader. Not just an engineer. A Licensed Electrical Contractor in Florida with an Unlimited EC license. Not just an executive. The founder and CEO of KEENTEL LLC—where expertise meets execution. Three decades. Multiple states. Endless impact.

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Let's Discuss Your Project

Let's book a call to discuss your electrical engineering project that we can help you with.

A bald man with a beard is wearing a suit and a white shirt.

About the Author:

Sonny Patel P.E. EC

IEEE Senior Member

In 1995, Sandip (Sonny) R. Patel earned his Electrical Engineering degree from the University of Illinois, specializing in Electrical Engineering . But degrees don’t build legacies—action does. For three decades, he’s been shaping the future of engineering, not just as a licensed Professional Engineer across multiple states (Florida, California, New York, West Virginia, and Minnesota), but as a doer. A builder. A leader. Not just an engineer. A Licensed Electrical Contractor in Florida with an Unlimited EC license. Not just an executive. The founder and CEO of KEENTEL LLC—where expertise meets execution. Three decades. Multiple states. Endless impact.

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