Retrofit and Modernization

Upgrade to VACUTAP® – Maximum Reliability, Minimal Maintenance!​

Ready to cut down on maintenance? With VACUTAP® technology, you get up to 300,000 tap-change operations—no maintenance required. Simply swap your OILTAP® diverter switch insert:​

• Replace OILTAP® M with VACUTAP® VM®​
• Replace OILTAP® R with VACUTAP® VR®​

It’s a plug-and-play retrofit: fully compatible, fast to install, and backed by our expert MR service team—done in just one day. Components arrive pre-tested and ready to go at your substation.​

Switch to VACUTAP® and start saving - effortlessly.

Is your on-load tap-changer functioning properly, but the motor-drive unit is causing problems? Is your motor-drive unit aging, frequently requiring maintenance and are spare parts getting scarce? Do you want to integrate a voltage regulator or monitoring system and need an intelligent drive to do so? We have an optimal solution for all of these requirements: the TAPMOTION® ED / ETOS. 
With a wide range of adapter and bracket solutions, we can exchange any motor-drive unit, whether old MR type MA2, 3 or 4 drives or drives from various manufacturers, such as ACEC, Alstom, Elin, Elprom, TRO or Trafo Union. After the work is complete, you have a maintenance-free motor-drive unit with proven MR quality, which offers maximum reliability.

Our monitoring solutions measure and calculate the most important operating states of the transformer and its components. This allows them to fulfill all current standards. Sensors can be connected via digital or analog inputs. The operating states are displayed locally in a web browser and can also be sent to the control room using conventional control system protocols. 

Our monitoring solutions for the tap changer monitor motor-drive signals and the OLTC oil temperature. Furthermore, maintenance recommendations can be provided and maintenance intervals calculated for OILTAP® and VACUTAP® tap changers. Calculating the contact wear for OILTAP® tap changers is also possible. In addition, we can carry out vibro-acoustic analyses online and monitor the OLTC torque.

Many Westinghouse UTTs and UVTs were commissioned more than 40 years ago. Spare parts are expensive and difficult to come by. Experts are retiring and the technical knowledge is quickly being lost.

In view of these problems, MR offers the VACUTAP® UTT-LTX and VACUTAP® UVT-LTX products. These retrofit solutions ensure long-term reliability for your transformer fleet thanks to sophisticated, state-of-the-art technology.

On-load tap-changers are key components for reliable operation of the transformer. Replacing an old on-load tap-changer cuts down on high maintenance costs and guarantees you an easy spare parts supply for the future. 

We offer turnkey retrofit solutions for reducing maintenance costs and increasing the reliability of your transformer.

The VACUTAP® on-load tap-changers are maintenance-free up to 300,000 switching operations, there is no time-dependent maintenance criterion. The contact life is 600,000 switching operations. Maintenance can be carried out quickly and easily.