Transformer Volt Amp Rating: Sizing & Engineering Guide
Understand the transformer volt amp rating, apparent power formulas, power factor impacts, and worked sizing calculations for industrial distribution systems.
Transformers guides
Sizing, selection, losses, vector groups and testing of distribution and power transformers.
Articles
Power Electronics US Transformer Oil Refinery Location Guide
Guide to power electronics us transformer oil refinery location criteria, covering NFPA siting, ester fluids, harmonic derating, and hazardous area safety.
Full Load Amps Calculator: Transformer Current Sizing Guide
Calculate transformer primary and secondary ratings with our full load amps calculator guide. Master 3-phase ampacity formulas, tables, and cable sizing.
European Transformer Guide: Technical Specs & Grid Standards
Specify a European transformer correctly. Compare EN 50588-1 EcoDesign losses, 50 Hz vs 60 Hz derating, vector groups, and US to EU transformer conversions.
PT Transformer Guide: Selection, Accuracy & Sizing
Understand PT transformer operation, accuracy classes, burden calculations, and high voltage potential transformer selection for switchgear and substations.
How Much Does a Transformer Weigh? Engineering Weight Guide
Wondering how much does a transformer weigh? Explore typical weight tables from 25 kVA to 50 MVA, core-and-coil breakdowns, and rigging calculations.
Main Transformer Sizing, Protection and Design Guide
Master main transformer engineering, protection schemes, sizing formulas, and factory testing standards for utility and industrial high-voltage substations.
Transformer Core Lamination Material: Grades & Selection Guide
Evaluate transformer core lamination material grades, CRGO silicon steel specs, thickness effects on no-load losses, and manufacturing quality standards.
Transformer Insulation: Engineering Guide to Thermal Classes
Master transformer insulation classes, thermal limits, dry-type dielectric systems, and testing standards according to IEC 60076-11 and IEEE C57.12.01.
High Voltage Test Guide: Transformer Methods & Standards
Master high voltage test standards, applied and induced voltage procedures, pass-fail criteria, and test kVA calculations per IEC 60076-3 and IEEE C57.12.00.
Solar Power Transformer: Engineering Sizing & Design Guide
Master solar power transformer design, harmonic K-factor derating, dual-LV winding specs, and IEEE C57.159 standards for utility-scale PV plants.
Transformer Relay Guide: Protection Schemes & Sizing
Master transformer relay engineering: ANSI codes, 87T differential slope calculations, CT matching, mechanical trips, and complete testing procedures.
Three Phase Line to Line Voltage: Engineering Guide
Master three phase line to line voltage calculations, vector relationships, standard ratings, and transformer sizing with practical engineering formulas.
Transformer Specification: Complete Engineering Sizing Guide
Learn how to write an accurate transformer specification. Review voltage ratings, impedance calculations, cooling classes, standards, and RFQ schedules.
Pole Transformer Diagram: Engineering Guide & Schematics
Master the pole transformer diagram with this engineering guide to terminal markings, split-phase residential wiring, 3-phase connections, and protection.
The Term Capacity on a Transformer Nameplate Refers to What?
Learn why the term capacity on a transformer nameplate refers to continuous apparent power in kVA or MVA, plus how cooling class and temperature rise affect it.
Phase Shifting Transformer Guide: Principles, Sizing & Design
Master phase shifting transformer selection, core topologies, and power flow control. Explore vector math, OLTC integration, and IEC 60076-57-1202 standards.
Transformer Fan Sizing: Cooling Design, Specs & Sizing
Master transformer fan selection, sizing calculations, and control staging to optimise ONAF heat dissipation in line with IEC 60076-2 thermal standards.
Step Up Transformer Diagram: Engineering Schematics & Wiring Guide
Master the step up transformer diagram: examine circuit schematics, vector groups, loop-feed terminal layouts, and calculated turns ratio specifications.
480 Volt Transformer Guide: Sizing, 3-Phase Specs & Design
Master 480 volt transformer engineering. Learn 480V to 230V 3-phase step-down sizing, Delta-Wye wiring, FLA formulas, and factory procurement specifications.
Wind Turbine Electrical Components: The Engineering Guide
Explore vital wind turbine electrical components, from generators and converters to step-up transformers, drivetrains, and grid-interface switchgear.
Power Factor Test for Transformers: Diagnostic Guide
Master the power factor test for power transformers. Learn IEEE C57.152 criteria, UST and GST test modes, temperature correction, and dielectric analysis.
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