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New model series for stage 2 according to EU-regulation No. 548/2014


Test Systems for Drive Technology


Protection against Voltage Dips

OLIVER – Online Voltage Regulation

Providing Solutions
is our Strength

RPT Ruhstrat Power Technology designs and manufactures solutions for electrical test solutions, voltage optimization and transformers. In electrical test solutions, RPT specialises in testing facilities for temperature rise test, motors and pumps as well as testing systems for high voltage cables (heat cycle tests).

In the area of voltage optimization, RPT relies on more than 80 years of experience and offers modern equipment to protect against voltage dips and to ensure voltage stabilisation. RTP’s transformer production for low and middle voltage with control cabinets guarantees a continuously high quality of all electrical components.


Heat Cycle Test Systems

Test systems for temperature rise testings

Test systems for drive technology

Test systems with voltage, current and frequency regulation

Inductive Load Banks

Resistive Load Banks

Voltage Stabilizers

NESSY – Network Voltage Stabilization

OLIVER – Online Voltage Regulation

EOS – Online Voltage Stabilization

DeltaVolt –  Energy Cost Reduction

Cast-Resin Transformers

Special Transformers

Variable Transformers

High-Current Transformers


Transformer Systems

Dry-Type Transformers

Fields of Applications

Test Systems for Temperature Rise Testings

Pump Test Stand

Series and EOL Tests for electric Motors

Protections against Voltage Dips

Voltage Stabilization Low-Voltage

Voltage Stabilization Medium-Voltage

Distribution Transformer

Transformers for marine Applications

Transformers for Fast-Charge-Stations

Heat Cycle Test of High-Voltage Cable and HVDC Cable

The perfect Partner for your Project


More than 100 years of experience in the design and production of transformers and voltage regulation systems

State of the Art

Innovative high-tech company with own state-of-the-art development department


Ruhstrat specializes in electrical test solutions, voltage optimization and transformers for low and medium voltage. Due to our own transformer production with control cabinets, Ruhstrat guarantees a continuously high quality of all electrical components.

Customer Focus

The entire staff uses our expertise, based on more than 130 years of experience, to absolutely satisfy the requirements of our demanding customers at all times. This is realized by individual solutions, which we develop in close cooperation with our customers. Our only mass produced products are those that meet specific customer requirements.


Career at
RPT Ruhstrat Power Technology

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