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How to Choose a Transformer Monitoring Platform

A transformer monitoring platform should integrate with the systems you already run, cover the fault modes that actually cause failures, and turn data into clear action rather than more alarms. Weigh integration, fault coverage, speed, and explainability together rather than any one in isolation.

By Geethan Navaratnam, Co-founderJune 14, 2026

Integrate with what you already have

The strongest platforms sit on top of your existing SCADA, historians, and CMMS rather than asking you to rip them out. Your systems of record can stay as they are. What changes is the intelligence layer feeding them. Be wary of any platform that requires replacing infrastructure that already works, and favor vendor-agnostic tools that integrate across mixed equipment.

Cover the fault modes that matter

Most serious transformer failures trace back to a handful of areas: windings, bushings, and load tap changers, alongside partial discharge and thermal stress. A platform that monitors only one method will miss faults that other methods would catch, so look for coverage across multiple signal types rather than a single point measurement.

Turn data into action, not alarm floods

More alarms is not the goal. The platform should reduce noise into a clear signal: a health view of each asset, reasoning about likely cause, and a recommended next step. Speed matters here too, since the faster an event is captured and surfaced, the more time an operator has to plan rather than react.

Modern vs legacy

A real distinction in this market is between legacy hardware-first systems and modern software-native platforms. Cloud-native tools built by software teams tend to deploy faster, integrate more openly, and improve more quickly than systems where the analytics are bolted onto older hardware. 42hz sits in the modern, agnostic, software-native category and is designed to work fast across the equipment you already have.

FAQ

Frequently asked questions

Should a monitoring platform replace our CMMS?

No. It should feed your existing work order and SCADA systems. The intelligence layer is what changes, not the systems of record.

What assets should one platform cover?

Ideally transformers, bushings, and substations, and increasingly HVAC and boilers, so monitoring is not fragmented across separate tools.

What separates a modern platform from a legacy one?

Modern platforms are typically cloud-native, vendor agnostic, and built by software teams, which makes them faster to deploy and integrate than hardware-first legacy systems.