PlatformTransformer monitoring
Plan the outage. Don’t wait for one.
Transformers give plenty of warning. 42Hz reads it from the relays and monitors you already have, and tells you which unit needs attention and when.
What it catches.
What goes wrong
What you’d see
42Hz
Running hot
Hot spot above its normal.For the same load and weather.
A forecast, not just an alarm.When it will reach its limit.
Cooling not keeping up
Fans or pumps not starting.At the stage they should.
Names the stage that isn’t working.So the crew brings the right part.
Gas levels rising
A jump in dissolved gas.From your online monitor.
Seen next to load and temperature.Your engineers make the call.
Tap changer wear
Operations climbing fast.Or the tap hunting back and forth.
Maintenance by actual use.Not by the calendar.
What it reads.
Most of it is already wired to a relay.
- Relays, including SEL: load and temperature inputs
- Winding and oil temperature, and cooling status
- Tap position and operation counts
- Online gas monitors, where installed
- RTUs, SCADA and historians
Common questions.
No. Relays and temperature inputs are enough to learn a unit’s normal. Gas monitors add detail if you have them.
No. It flags changes and shows them next to load and temperature. Your engineers or testing provider make the diagnosis.
Yes. Loading and condition history for every unit shows which to refurbish or replace first.
It’s designed for NERC CIP environments: outbound-only, encrypted and read-only by default.