Medium Voltage Equipment Guides
Answers to the questions engineers and buyers ask us most. More guides are in progress.
Solid Dielectric vs SF6 Switchgear
Solid dielectric vs SF6 switchgear compared: ratings, footprint, maintenance and the 2026 EPA and California SF6 rules, with G&W and JST options.
Read GuideMedium Voltage Equipment Lead Times 2026
Wood Mackenzie's Q2 2025 survey: about 30 weeks for distribution transformers, 128 for power transformers. See dated figures and how to shorten yours.
Read GuideDeadbreak vs Loadbreak Elbows
Deadbreak vs loadbreak elbows explained: how 200A loadbreak and 600A deadbreak separable connectors differ, when to use each, and IEEE 386 basics.
Read GuideCast Resin vs VPI Dry Type Transformers
Cast resin vs VPI transformer: how the two dry type designs compare on moisture, voltage, BIL, cost and fire safety, and when liquid-filled fits better.
Read GuideMedium Voltage Equipment for Data Centers
How to plan data center medium voltage equipment: campus MV architecture, GIS vs. metal-clad switchgear, SF6-free options, transformers and BESS.
Read GuideData Center Transformers: Dry Type vs Liquid-Filled
Data center transformer guide: where dry type and liquid-filled units fit on a campus, plus NEC 450 siting, FM Global, DOE efficiency, K-factor and sizing.
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