Replacement Solutions for Legacy Transformer Monitors
Dynamic Ratings offers complete retrofit kits for seamless replacement or upgrades of legacy transformer monitors. The Dynamic Ratings’ E3, C50, and B100 monitors are drop-in alternatives for various legacy monitors such as the Qualitrol 509*, MESSKO MTec EPT** and other products.. Dynamic Ratings’ Lifestream® Support Services provide turnkey service to ensure successful asset monitoring throughout the entire life cycle of an asset. Learn more about retrofit options.
*Qualitrol is a registered trademark of Qualitrol Company LLC.
**MTec and MESSKO are registered trademarks of MESSKO and Maschienfabrik Reinhausen Gmbh.
***SEL is a registered trademark of Schweitzer Engineering Laboratories, Inc.
****GE Multilin D2 is registered trademark of GE Vernova.



Benefits of Replacing a Legacy Transformer Monitor
- Revitalize existing equipment with a new asset monitoring platform with more features such as key gas monitoring
- Easy implementation with LIFESTREAM® Support Services
- Reduce maintenance costs
- Decrease installation time
- Increase sustainability
- Improve safety and reliability through condition-based monitoring
- Integrate with sensor technology to monitor for hydrogen and moisture
Dynamic Ratings Retrofit Monitors
We provide the solution for a drop-in replacement for existing legacy transformer monitors and panel mounts with the B100 Electronic Temperature Monitor and the C50 Transformer Monitor.

Dynamic Ratings B100 Electronic Temperature Monitor
The B100 Electronic Temperature Monitor is a good replacement alternative for the Qualitrol 509-100. The B100 monitors top oil, LTC tank temperature, winding temperature and load current. The B100 has six digital outputs and provides cooling monitoring, hydrogen monitoring and moisture monitoring.

Dynamic Ratings B100 Electronic Temperature Monitor
The B100 Electronic Temperature Monitor is a good replacement alternative for the Qualitrol 509-200. The B100 monitors top oil, LTC tank temperature, winding temperature and load current. The B100 has six digital outputs and provides cooling monitoring, hydrogen monitoring and moisture monitoring.

Dynamic Ratings C50 Transformer Monitor
The C50 Transformer Monitor is a good replacement alternative for the Qualitrol 509-300. The C50 Transformer Monitor offers additional features such as bushing monitoring, partial discharge monitoring, hydrogen and moisture monitoring and more.

Dynamic Ratings C50 Transformer Monitor
The Qualitrol 509-DW is an expansion module for the 509-200 and 509-300 models that provides calculated and direct winding hot spot temperatures and up to 16 fiber optic temperature inputs. The C50 Transformer Monitor is a good replacement option for this expansion.

Dynamic Ratings B100 Electronic Temperature Monitor
The B100 Electronic Temperature Monitor is a good replacement alternative for the MTeC EPT 202. The B100 uses Modbus communication instead of SPI bus communication for a stronger connection through long distances. Dynamic Ratings B100 also monitors top oil, LTC tank temperature, winding temperatures and load currents. The B100 has six digital outputs and provides cooling monitoring, hydrogen monitoring and moisture monitoring.

Dynamic Ratings B100 Electronic Temperature Monitor
The B100 Electronic Temperature Monitor is a good replacement alternative for the MTeC EPT 303. The B100 monitors top oil, LTC tank temperature, winding temperature and load current. The B100 has six digital outputs and provides cooling monitoring, hydrogen monitoring and moisture monitoring.

Dynamic Ratings C50 Transformer Monitor
The C50 Transformer Monitor is a good replacement alternative for the MTeC EPT 303 FO. The C50 Transformer Monitor offers additional features such as bushing monitoring, partial discharge monitoring, hydrogen and moisture monitoring and more.

Dynamic Ratings C50 Transformer Monitor
The C50 Transformer Monitor is a good replacement alternative for the SEL-2414. The C50 Transformer Monitor offers additional features such as bushing monitoring, partial discharge monitoring, hydrogen and moisture monitoring and more.

Dynamic Ratings E3 Transformer Monitor
The E3 Transformer Monitor is a good replacement alternative for the GE Multilin D2. The E3 monitors top oil temperature, bushing health, DGA, and partial discharge. The E3 offers up to 12 modules with the multiport module counting as one of the 12; this is an additional 8 modules if the multiport module is included.
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More About Retrofit Solutions

C50 Transformer Monitor
Dynamic Ratings C50 Transformer Monitor makes condition monitoring easy and affordable. It looks at the condition of your assets so that you can use real-time data to make decisions about your high voltage transformers.

LIFESTREAM®
Successful asset management is a process flow of planning, designing, managing, implementing, verifying, and supporting. Dynamic Ratings LIFESTREAM® Support Services ensures successful asset monitoring throughout the entire life cycle of an asset.

B100 Electronic Temperature Monitor
The B100 Series Electronic Temperature Monitor (ETM) is a complete monitoring solution for any transformer. The B100 ETM is an analog gauge replacement that provides accurate indication of problems inside the transformer via fault gas detection.
Additional Resources
RESOURCE LIBRARY
We offer a variety of resources to help you learn more about monitoring your substation assets.BLOG ARTICLE
Retrofit Transformer Monitoring: A Cost-Effective Approach for Revitalizing Aging Infrastructure
