Comprehensive Electrical Engineering Services
From high-voltage grid integration to precision protection coordination and utility-scale solar modelling, LH Electrical Power provides accredited calculation and drafting services.
Medium-Voltage Cable Route Design & Solar Integration
Comprehensive route planning, thermal rating analysis, and parcel segmentation for underground medium-voltage cable networks connecting photovoltaic parks, wind installations, and industrial facilities to the public grid. Proven on major infrastructure projects in Germany.
- • Detailed cable trench profiles & depth cross-sections
- • HDD (Horizontal Directional Drilling) crossing plans
- • Parcel ownership lists & routing cadastral coordination
- • Ampacity calculation according to IEC 60287
Solar PV System Analysis & Engineering Simulation
End-to-end solar photovoltaic system engineering from conceptual layout to multi-megawatt simulation. Backed by verified experience on Canadian 220 MWp-DC / 150 MWp-AC utility-scale projects and European commercial rooftop installations.
- • PV*Syst comprehensive yield simulation reports
- • Inverter matching, DC/AC ratio & string sizing
- • PV*Sol 3D near-shading and irradiance analysis
- • Performance Ratio (PR) & energy loss diagramming
Electrical Panel Design, Schematics & AutoCAD Drafting
Complete design of industrial switchboards, motor control centers (MCC), variable frequency drive (VFD) panels, and automation cabinets. Includes full single-line diagrams (SLD) and physical cabinet layout drawings.
- • Single Line Diagrams (SLD) & Three-Line schematics
- • Control & command cabinet internal layout drawings
- • Terminal connection diagrams & I/O assignment sheets
- • VFD drive selection & harmonic mitigation
Power Flow, Short-Circuit & Grid Analysis (ETAP)
Rigorous numerical power system analysis for utility interconnects, substations, and transmission networks. Verified in Germany on 110/33 kV substations and in North Macedonia on 24kV–110kV high-voltage grid studies.
- • Load Flow Analysis & bus voltage profiling
- • 3-phase and Line-to-Ground short-circuit currents (IEC 60909)
- • Relay protection coordination & time-current curves (TCC)
- • Power factor correction & reactive power compensation
Technical Specifications, Bill of Quantities & Documentation
Preparation of complete engineering tender packages, detailed bills of materials (BOM), cable schedules, equipment data sheets, and commissioning protocols for substations, industrial plants, and commercial buildings.
- • Comprehensive technical equipment descriptions
- • Bill of Materials (BOM) & itemized material lists
- • Factory Acceptance Testing (FAT) / SAT documentation
- • Operation & Maintenance (O&M) manuals
International Engineering Standards Matrix
Our designs, load flow studies, short-circuit calculations, and protection coordination packages adhere to the prevailing statutory codes across Europe, Germany, Canada, and the United States.
| Design / Analysis Area | IEC / EN Standard | Germany – DIN / VDE | Canada – CSA / CEC | USA – IEEE / ANSI / NFPA |
|---|---|---|---|---|
| Short-Circuit Analysis | IEC 60909 | DIN EN 60909 (VDE 0102) | CSA / IEEE 3002 Series | IEEE 3002 Series / ANSI C37 |
| Cable Ampacity | IEC 60287 | DIN EN 60287 | CSA C22.1 / CEC | NEC Article 310 / IEEE |
| MV Cables | IEC 60502-2 | DIN EN 60502-2 (VDE 0276) | CSA C68 Series / CEC | ICEA / AEIC / IEEE |
| HV Cables | IEC 60840 | DIN EN 60840 (VDE 0276) | CSA / IEEE / Utility Standards | ICEA / AEIC / IEEE |
| MV/HV Switchgear | IEC 62271 | DIN EN IEC 62271 (VDE 0671) | CSA C22.2 / IEEE C37 | ANSI/IEEE C37 Series |
| Power Transformers | IEC 60076 | DIN EN IEC 60076 (VDE 0532) | CSA C88 Series | IEEE C57 Series |
| Protection Relays | IEC 60255 | DIN EN IEC 60255 | CSA / IEEE C37 | IEEE/ANSI C37 Series |
| Earthing / Grounding | IEC 60364-5-54 | DIN VDE 0100-540 | CSA C22.1 / CEC | IEEE 80 / NEC |
| Lightning Protection | IEC 62305 | DIN EN 62305 (VDE 0185-305) | CSA / CEC | NFPA 780 / IEEE |
| Harmonics / EMC | IEC 61000 Series | DIN EN 61000 (VDE 0839) | CSA C61000 Series / IEEE 519 | IEEE 519-2022 |
| Harmonics – MV/HV | IEC 61000-3-6 | DIN EN 61000-3-6 | IEEE 519 / Utility Requirements | IEEE 519-2022 |
| PV System Design | IEC 62548 | DIN EN IEC 62548 | CSA C22.1 / CEC Section 64 | NEC Article 690 |
| PV Performance | IEC 61724-1 | DIN EN 61724-1 | CSA / IEC / Utility Requirements | IEC / IEEE / Utility Requirements |
| PV Electrical Installation | HD 60364-7-712 | DIN VDE 0100-712 | CSA C22.1 / CEC | NEC Article 690 |
| LV Electrical Installations | HD 60364 Series | DIN VDE 0100 | CSA C22.1 – CEC | NFPA 70 – NEC |
| VFD / Electrical Drives | IEC 61800 Series | DIN EN 61800 (VDE 0160) | CSA C22.2 / IEEE | IEEE / NEMA / NFPA 70 |
| Power Quality | EN 50160 | DIN EN 50160 | IEEE 519 / CSA | IEEE 519-2022 |
| Arc Flash | IEC 61482 / IEC 60364 | DIN VDE / DIN EN | CSA Z462 | NFPA 70E / IEEE 1584 |
| Grid-Connected PV / IBR | IEC / EN Grid Codes | VDE-AR-N / DIN EN | CSA / IEEE / Utility Grid Code | IEEE 1547 / IEEE 2800 |
| Substation Grounding | IEC 61936-1 | DIN EN 50522 | CSA / IEEE | IEEE 80 |
| Transmission Lines | IEC / EN | DIN EN / VDE | CSA / NESC | NESC – IEEE C2 |
| Indoor Photometric Lighting | EN 12464-1 | DIN EN 12464-1 | CSA / IES | IES / ANSI/IES |
| Outdoor Photometric Lighting | EN 12464-2 | DIN EN 12464-2 | IES / CSA | IES / ANSI/IES RP-8 |
| Emergency Lighting | EN 1838 | DIN EN 1838 | CSA / IES | NFPA / IES |
| Road / Street Lighting | EN 13201 | DIN EN 13201 | IES / TAC / CSA | IES / ANSI/IES RP-8 |
| Glare – Indoor Lighting | CIE 117 | DIN/EN + CIE 117 | IES / CIE | IES / CIE |
| Road Lighting Calculations | CIE 140 / EN 13201 | DIN EN 13201 / CIE 140 | IES / CIE | IES / ANSI/IES RP-8 |
Need Specialized Engineering Calculations For Your Project?
Our 6-engineer dedicated team can support your design, ETAP analysis, or PV*Syst simulation requirements.