Hipot testing applies a voltage well above the operating voltage to insulation for a set time to prove it withstands it. This guide
Case Studies, Technical Guides & Industry Insights from Megavar's HV Engineering Team
Megavar’s engineering team shares practical insights from real HV commissioning projects, technical guides for substation testing, and case studies from BESS, solar farm, and wind farm commissioning work across Australia. Our content is written by practising engineers who use this equipment and perform these tests daily.
Battery testing shows whether a stationary standby battery can carry its DC load when the AC supply fails. This guide explains discharge (capacity)
VLF testing applies AC at 0.1 Hz to an MV or HV cable to prove its insulation, joints and terminations. This guide explains
An insulation resistance test applies a steady DC voltage across insulation and measures the small current that flows. This guide explains the test
Ductor testing measures the resistance of circuit breaker contacts, busbar joints, cable lugs and earth bonds in micro-ohms. This guide explains the test
Earth resistance testing shows whether an earth electrode or substation earth grid will carry fault current safely into the ground. This guide explains
Transformer testing covers a defined set of electrical, dielectric and oil tests that together prove a power transformer is fit to energise and
Partial discharge testing finds insulation defects in HV cables, switchgear and transformers before they fail. This guide explains partial discharge detection, the difference
We’re incredibly excited to share a big milestone in Megavar’s story – we’ve officially opened our new Newcastle branch, located at 22 Gavey Street, Mayfield,