Steady-state ampacity
IEC 60287-based rating across direct burial, ducts, casings, tunnels, troughs, HDD and offshore sections.
Underground HV cable engineering
Cable systems, calculated with confidence.
AmpaCore brings steady-state ampacity, transient loading, bonding, short-circuit, magnetic-field and complex installation assessments into one controlled engineering workflow.
IEC + CIGREStandards-led calculation basis
One workflowRoute, cable, bonding and reports
ControlledValidation-linked engineering output
110 kV cable system
Solved
CROSS-SECTION · DIRECT BURIED IN BACKFILL
TRANSIENT RESPONSE · 48 h
Circuit 1
Circuit 2
Circuit 3
Emergency peak105.3 °C
Continuous90.0 °C
Route rating788 A
110 kV cable system, direct buried in backfill. Three identical 1×1200 mm² Al circuits at 2 m spacing in one 6 m backfill — differing only in bonding. A 1.3 × emergency for six hours takes the both-ends bonded circuit to 105.3 °C, exactly its emergency limit.
Engineering coverage
One platform for the full underground cable route.
Build the route once, assign the cable systems and evaluate the governing thermal, electrical and installation constraints in a consistent project model.
Transient loading
Combined cyclic and emergency temperature response with route-section and circuit-level load assignments.
Short-circuit sizing
Thermally permissible conductor, sheath and metallic-component short-circuit assessments.
Controlled reporting
Engineering PDF, Excel and machine-readable project records linked to calculation inputs and validation status.
Bonding and SVL
Cross-bonding, single-point and both-end bonding with standing-voltage and link-box reporting.
C1 cross-bondedC2 single-pointC3 both-ends
Single-point103 V
Cross-bonded38 V
Both-ends266 A sheath
Magnetic fields
Route-specific magnetic-field output with the cable geometry and current distribution captured in the model.
ResultantC1C2C3
Peak3.28 µT
EU reference100 µT
Height1.0 m
Horizontal directional drilling
The deepest point of the bore is rarely the point you designed for.
An HDD crossing leaves the trench and passes through whatever the ground offers. AmpaCore sweeps the bore depth directly, resolves the effective g-value of the soil mix above the cable at every step, and returns a rating profile along the leg. Edit a layer and the profile recomputes.
BORE PROFILE · 15° ENTRY, 10 m DEEPEST
RATING AND EFFECTIVE g-VALUE vs DEPTH
Rating at entry, 1.2 m954 A
Bottleneck at 6 m625 A
Rating at 10 m, in sand880 A
Governing layerClay, g 2.0
Purpose-built workflow
Designed for cable engineers, not generic simulation users.
AmpaCore keeps the engineering logic behind the interface while presenting the inputs, results, application limits and evidence required for responsible design decisions.
✓
Automatic modelling routeNo exposed solver selector for ordinary users.
✓
Multi-section project structureAssess the complete route instead of isolated calculations.
✓
Version-linked documentationMethods, validation and limits stay connected to the delivered engine.
✓
Backend-authoritative calculationsProduction engine logic remains protected on the server.
app.elerupower.com — 110 kV cable system
Projects
Versions
Calculations
Users & seats
Billing
Documentation
Calculation result
completedRoute rating788 A
Governing90.0 °C
Sections3
| Circuit | Current | Conductor | |
|---|---|---|---|
| Circuit 1 | 787.6 A | 75.9 °C | |
| Circuit 2 | 787.6 A | 83.4 °C | |
| Circuit 3 | 787.6 A | 90.0 °C |
Engine 0.4.3
PDFXLSXJSON
Positioning
Where AmpaCore fits — and where it doesn't.
The established tools are capable and well validated. AmpaCore is not trying to out-feature them. It packages a complete underground HV scope into one browser-based subscription, and makes every result traceable to the engine version that produced it.
| Capability | AmpaCore | CYMCAP Eaton | Grøft Design | ELEK Cable HV |
|---|---|---|---|---|
| Delivery | ||||
| Runs in a browser, no installation | ● | ○ | ● | ○ |
| Named-user cloud project database | ● | ○ | ● | ○ |
| Result carries engine version + hash | ● | ○ | ○ | ○ |
| Immutable project versions | ● | ○ | — | ○ |
| Thermal rating | ||||
| IEC 60287 steady-state | ● | ● | ● | ● |
| IEC 60853 cyclic and emergency | ● | ● | ◐ | ● |
| Finite element method | ● | ◐ | ● | ● |
| Automatic analytical/FEM selection | ● | ○ | — | ○ |
| Soil dry-out | ● | ◐ | ● | ● |
| Multiple backfills and duct banks | ● | ◐ | ● | ● |
| Circuit crossings (IEC 60287-3-3) | ● | ◐ | — | ● |
| 3D / non-parallel geometry | ○ | ◐ | — | ○ |
| Bonding and electrical | ||||
| Cross-bonded, single-point, both-ends | ● | ● | — | ● |
| Standing sheath voltage profile | ● | ● | — | ● |
| SVL selection support | ● | ○ | ○ | ○ |
| IEC 60949 short-circuit rating | ● | ◐ | — | ● |
| Sequence impedances | ○ | ◐ | — | ● |
| HVDC cables | ○ | ● | — | ● |
| Installation types | ||||
| Direct buried, backfill, ducts | ● | ● | ● | ● |
| Troughs, tunnels | ● | ◐ | — | ● |
| Submarine, seabed, J-tubes | ● | ◐ | — | ● |
| Multi-section routes, mixed methods | ● | ◐ | — | ◐ |
| Other | ||||
| Magnetic field profile | ● | ◐ | — | ● |
| Parametric / batch studies | ○ | ◐ | — | ○ |
| Pre-modelled cable library | ◐ | ● | — | ● |
| Independent validation history | ○ | ● | ◐ | ● |
● In base package
◐ Paid add-on or partial
○ Not available
— Not published
One package. Every function. Including the ones not built yet.
AmpaCore has no modules to buy. Steady-state, transient, bonding, short-circuit, magnetic fields, multi-section routes and HDD crossings are all in the base subscription — and every function added in future releases arrives in the same subscription at no extra licence cost.
ELEK Cable HV — Professional, 12-month lease≈ €985
CYMCAP — comparable scope, perpetual over 5 yr≈ €720
Grøft Design — Essentials / Advanced€400 – €600
AmpaCore — all functions included€299 – €149
Prices and capabilities as published, July 2026, excluding VAT. Capability depends on configuration and modules — verify with each vendor. All trademarks belong to their respective owners.
Named-user licensing
A practical structure for engineering teams.
Company subscriptions are designed around individually assigned seats, with project access and calculation rights controlled per named user.
Company plan
For cable-system consultants, utilities, manufacturers, contractors and engineering teams.
✓ Full controlled V1 calculation scope
✓ Organisation project workspace
✓ Named-user access and seat administration
✓ PDF, Excel and machine-readable exports
✓ Validation and methods documentation
✓ Support included — no separate maintenance contract
✓ Every future release and new function, at no extra licence cost
Interactive seat estimate
Each additional named user costs less than the one before it — down to half price.
When you choose to be billed annually, two months are free of charge.
€625 / month
Bring the complete underground cable route into one controlled calculation.
AmpaCore is progressing through controlled pilot and production commissioning under the Eleru brand.