MMS90Intelligent moisture management
for transformer oil — 24/7.
An on-line single-cylinder dehydration system that quietly removes water from transformer insulation before it can rob your asset of life — backed by a PLC, dual sensors and 10 years of onboard data.
Engineered to be seen.
Built for uptime. Designed for engineers.
Six engineered stages — from always-on operation to fail-safe isolation — work as one continuous moisture-management pipeline.
On-line continuous operation
24/7 dehydration without taking the transformer offline.
Where MMS90 earns its place.
Hover or tap any scenario — see how MMS90 performs across the utility, renewables and industrial worlds.
Generator Step-Up (GSU)
Keep critical GSU insulation dry under heavy thermal cycling.
- Continuous on-load drying
- Resilient to thermal cycling
- Zero outage installation
Operators running MMS90 today
Selected utilities, TSOs and industrial operators deploying MMS90 across transmission, generation, and renewables fleets.
Every number that matters.
MMS90 ships with a complete installation kit and is supported by a one-year factory warranty through our worldwide network of authorized representatives.
Download full spec sheet- Flow rate
- 100–300 LPH (motor setting)
- Moisture management
- to ≤ 10 ppm
- Media volume
- 50 kg
- Particulate removal
- 1 / 3 / 6 / 12 micron (spin-on)
- Dimensions (H×W×D)
- 1770 × 860 × 775 mm
- Weight
- 380 kg
- Enclosure
- Mild steel 2.5 mm, RAL 7035, IP56
- Cylinder & piping
- Stainless steel 316
- Oil temp range
- +2 °C to +95 °C
- Ambient temp range
- 0 °C to +65 °C
- Electrical
- 230 VAC, 50/60 Hz, 360 W, 1Ø
- Comms
- Modbus RTU · DNP3 · TCP/IP · IEC 61850
- Display
- 4-inch touch HMI
- Data storage
- 8 GB · ~10 years
Specify MMS90 for your next transformer.
Our engineering team will size, quote and commission MMS90 for any asset in your fleet — typically 5 hours to install, 1 hour to commission.
Other DryTrans technologies
High-capacity dual-cylinder active drying for GSU & HV assets.
Mid-capacity active drying for medium-power transformers.
Continuous dehydration for small to medium power transformers.
Targeted moisture & contamination control for OLTC compartments.
