Our high-quality current transformers and voltage transformers are installed in projects all over the world.

They are used in applications including switchgear and switchboard assemblies, motor controllers, power transformer bushings and circuit breaker bushings. In short, they’re used everywhere that transmitted energy’s electrical parameters need to be measured and controlled. R&S is your perfect partner, having acquired many years of experience in the field of cast resin-insulated transformers.

Rated insulation level: up to 36 kV
Measurement accuracy class:
from 0.5 to 0.2 s
Protection accuracy class:
3P to 6P (VT) / 5P10 to 5P30 (CT)

CEI-UNEL Current transformer

Benefits that speak for themselves

Increase your accuracy
High-quality production processes mean that our transformers are implemented to meet the highest accuracy classes stipulated by the relevant standards. They can be used in any application where extreme accuracy is required, in the likes of tariff metering or testing laboratories.
Lower your environmental impact
We do not use any hazardous materials during our manufacturing process. The transformers do not release substances into the environment and, at the end of their life, they can be categorised as non-hazardous waste according to European directives.
Achieve maximum safety
The resin and insulating materials used in the design and construction of our transformers guarantee a high level of safety and reliability.
Reduce space and cut costs
The transformers are designed to reach optimum dimensions according to CEI-UNEL 21009 and DIN 42600. Both the small size and the light weight allow you to minimise storage space and handling costs.
Simplify your maintenance
Preventive maintenance involves a simple visual inspection and cleaning. The fact that our transformers are designed to withstand the harshest of climatic and environmental conditions allows you to cut your maintenance costs.

We would like to take the opportunity to express our satisfaction with the manufacturer of measurement transformers, highlighting the proactive approach in the customer/supplier relationship.

José Gonçalves from the Technology and Innovation Department at EDP Distribuição

Want to get technical?

Take a look at our brochure or contact a member of our team today.

Different specifications to meet your requirements

We provide different types of instrument transformers to make sure our solution meets your specific needs. Our voltage and current transformers are designed with a single winding or multiple secondary windings and with the option of primary voltage or current regulation. We will also provide different specifications on request.

CEI-UNEL Current transformer

- Rated insulation level of up to 36 kV
- Single or dual primary current from 5 A to 2,500 A
- Single, dual or triple cores

Brick Type Current transformer

- Rated insulation level of up to 36 kV
- Single or dual primary current from 5 A to 2,500 A
- Single, dual or triple cores

DIN Current transformer

- Rated insulation level of up to 36 kV
- Single or dual primary current from 5 A to 2,500 A
- Single, dual or triple cores

Ring Current transformer

- Rated insulation level of 0.72 kV
- Single primary current ranging from 50 A to 20,000 A

ENEL Phase to Phase Voltage transformer

- Rated insulation level of up to 24 kV

CEI-UNEL Phase to Phase/Phase to Ground Voltage transformer

- Rated insulation level of up to 36 kV
- Single or dual primary voltages
- Single or dual secondary windings

DIN Phase to Phase/Phase to Ground Voltage transformer

- Rated insulation level of up to 36 kV
- Single or dual primary voltages
- Single or dual secondary windings

Fuse-Holder Phase to Ground Voltage transformer

- Rated insulation level of up to 36 kV
- Single or dual primary voltages
- Single or dual secondary windings

Self-protected voltage transformer

- Homologated by Enel
- Pole mounted installation
- Rated insulation level of up to 24 kV

How can I help?

Name

Luigi Corsico

Position

Sales Director Tesar Italy

Phone

+39 0575 317 232
Luigi Corsico