AI Predictive Maintenance for Utilities

Know the fault weeks before the transformer trips

Magnefy reads the electromagnetic signature of your transformer fleet and surfaces fault predictions in time to plan the repair, not the outage.

Request Demo How It Works

The Problem

Transformer failures are predictable. Most utilities find out too late.

Conventional monitoring watches temperature and oil chemistry. Both methods detect late-stage symptoms. The fault had been developing in the winding for weeks by that point, which is too late to plan anything.

$1.5M+

Typical cost of an unplanned substation outage including crew dispatch, regulatory reporting, and downstream equipment damage

70%

Of transformer failures show EM signature anomalies 2-6 weeks before conventional sensors register anything

3-6 weeks

Typical advance warning window Magnefy provides, enough time to schedule a maintenance crew and order parts

How It Works

From sensor to scheduled repair in three steps

No new infrastructure beyond our sensor node. No dashboard your team has to monitor.

Continuous EM monitoring

A compact sensor node clips onto the transformer's existing wiring. It captures the full electromagnetic signature at 10-second intervals and transmits to our cloud pipeline.

Fault signature analysis

Our models compare current EM patterns against the transformer's learned baseline and a library of 40+ fault signatures built from field and lab data across oil-filled distribution equipment.

Actionable alerts

When the model detects a developing fault, we push a structured alert: asset ID, fault type, severity, predicted event window, and recommended action. Delivered to your SCADA, CMMS, or email.

See the full process

94%

Fault detection accuracy in a 20-transformer municipal utility pilot, with average lead time of 17 days before predicted event

"We had a transformer on our watch list for two years. Magnefy flagged a winding fault 19 days before it would have taken the substation offline. The scheduled repair cost us one shift. An unplanned outage would have cost us a week and a regulator notice."

Operations Director, municipal electric utility, Pennsylvania, from Magnefy's early-access pilot program

Platform

Built for utility engineering teams

Electromagnetic signature analysis

We monitor the full EM output spectrum, not just temperature or oil samples. Winding faults change the magnetic signature 3 to 6 weeks before thermal or chemical tests register anything.

40+ fault signature library

Trained on oil-filled distribution transformer field data, our library covers insulation degradation, winding shorts, cooling system faults, and core anomalies with per-fault confidence scoring.

SCADA and CMMS integration

Alerts push directly into the systems your team already uses via OPC-UA, REST webhooks, or CSV export. No new dashboard to monitor, no separate workflow.

Fleet health dashboard

A single view of every monitored transformer's health score, active alerts, and trend history. Filter by substation, voltage class, or age to prioritize your maintenance schedule.

The Team

Built by grid engineers

We worked protection relay and fault analysis before building Magnefy. We know what a 2 a.m. transformer call looks like.

Grace Chen

CEO & Co-Founder

Distribution reliability engineer with operational experience managing fault diagnosis programs across large utility transformer fleets. Built asset monitoring workflows for 800+ distribution transformers before co-founding Magnefy.

Marcus Webb

CTO & Co-Founder

Power systems engineer with years of hands-on work in protection relay design and fault analysis. Transitioned into signal processing research focused on extracting diagnostic information from transformer EM output.

Nadia Osei

Head of Data Science

Signal processing and anomaly detection specialist. Graduate-level background in time-series classification applied to industrial sensor data. Joined Magnefy in 2024 to build the fault signature library and classification models.

Full team bios

Pricing

Start with a 3-month pilot at no cost

We prove value on your fleet before you sign a production contract.

Pilot

Free

3-month evaluation on up to 20 transformers. No contract required.

Up to 20 transformer assets
Full fault signature library
Email and webhook alerts
Pilot results report at 90 days

Start Pilot

See Magnefy on your transformer fleet

A 30-minute technical conversation with our engineering team. No sales deck, no commitment.

Request Demo View pricing