Grounding Grid Design: Substation Earthing Guide
Master grounding grid design for substations and renewable plants. Learn IEEE 80 calculations, touch potential limits, conductor sizing, and testing methods.
Insights & Buying Guides
Practical engineering guides on specifying transformers, switchgear, compact substations and battery energy storage — written for buyers, consultants and project engineers.
Articles
Low Voltage Electrical Systems: IEC Standards & Sizing
Master low voltage electrical system engineering. Explore IEC 60364 thresholds, IEC 61439 switchgear assemblies, fault sizing, and protection coordination.
Transformer Selection Chart: Sizing, Current and Breakers
Use our transformer selection chart to calculate full-load currents, primary and secondary breaker ratings, and impedance values across standard kVA ratings.
480V Transformer Guide: Sizing, Wiring & Selection
Master 480V transformer selection with engineering sizing formulas, 480V to 230V configurations, NEC 450 protection rules, and factory testing standards.
Transformer Sales: Industrial Sourcing & Engineering Guide
Navigate commercial transformer sales with technical precision. Compare industrial electrical transformers, evaluate total cost of ownership, and specify RFQs.
110 Volts 220 Guide: Voltage Differences and Transformer Sizing
Master 110 volts 220 power systems. Learn the differences between nominal mains voltages, transformer sizing calculations, autotransformers, and wiring steps.
Transformer Wire Sizing: Cable Engineering & Selection Guide
Master transformer wire sizing and selection. Calculate continuous ampacity, fault withstand, and insulation classes per IEC 60076 and NEC standards.
Earthing Transformer Guide: Design, Sizing & Protection
Master earthing transformer design, sizing calculations, zigzag vs wye-delta connections, and protection schemes for ungrounded medium-voltage networks.
Medium Voltage Power Systems: Engineering and Design Guide
Master medium voltage power distribution. Explore engineering standards, system architectures, protection sizing, and mechanical integration for MV networks.
5 kWh Battery Guide: Sizing, Technical Specs and Cost
Evaluate the 5 kWh battery for residential and commercial backup. Discover 5kw solar battery price factors, usable capacity, C-rates and sizing.
2 Plastic Bushing: Transformer LV & Conduit Engineering Guide
Comprehensive engineering guide to 2 plastic bushing specifications, thermal ratings, NEC 300.4(G) compliance, and transformer enclosure installation.
Transformers Writer Guide: RFQ Specs & Engineering History
Learn how a professional transformers writer structures tender RFQs, evaluates factory data, and applies standards from the 1st transformer to modern units.
Transformer Connections: 3-Phase Vector Groups & Wiring Guide
Master transformer connections with this engineering guide to vector groups, 3-phase wiring diagrams, parallel operation rules, and terminal markings.
Lithium Battery Bank Sizing, Architecture, and BESS Design
Design and size an industrial lithium battery bank. Explore LiFePO4 rack architectures, DC bus calculations, safety standards, and integration specs.
Legacy Transformers: Engineering, Sizing & Replacement Guide
Evaluating legacy transformers for substations or retrofits? Compare IEEE ratings, impedance tolerances, loss evaluation, and modern replacement specifications.
Metal Enclosed Switchgear: Engineering Specs & Selection
Learn how metal enclosed switchgear operates, its IEEE and IEC design criteria, key differences from metal-clad assemblies, and practical sizing rules.
200 Amp Solar System Sizing, Busbars & Battery Guide
Master 200 amp solar system engineering: calculate busbar capacity via NEC 705.12, size battery storage, configure inverters, and specify switchgear.
House Transformer Guide: Engineering Sizing, Types & Specs
Learn how a house transformer works, overhead vs pad-mounted configurations, residential transformer diagrams, 3-phase sizing, and IEEE/IEC standards.
Li Battery Types: Engineering Comparison for Industrial BESS
Compare commercial li battery types for grid and industrial BESS. Evaluate LFP, NMC, LTO, and NCA chemistries by safety, cycle life, and thermal limits.
Battery Module Architecture: Engineering Design & BESS Sizing
Learn battery module engineering for BESS projects. Compare LFP cell topologies, thermal design, electrical sizing calculations, and IEC 62619 standards.
4kW Solar System Guide: Yield, Sizing & Battery Storage
Discover how a 4kw solar system performs. Calculate daily energy yield, inverter sizing, battery integration, and engineering balance of plant specs.
Battery Storage Facility Engineering & Architecture Guide
Design a reliable battery storage facility with this engineering guide covering system architecture, safety standards, fire protection, and management.
How to Hook Up a Transformer: Complete Installation Guide
Learn how to hook up a transformer safely with this engineering guide covering primary and secondary connections, grounding rules, and pre-energisation checks.
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