
Measurement and protection
The basis of any safe electrical installation
The measurement and electrical protection are the cornerstones of any facility, regardless of its size or complexity. Before talking about digitisation, efficiency or advanced management, it is imperative to guarantee safety, reliability and accuracy of measurement.
In industrial, tertiary or infrastructure installations, a correct measurement and protection architecture makes it possible to protecting equipment and people, The system is designed to ensure the correct operation of the electrical system and to provide reliable signals for the rest of the installation.
The challenge:
accurately measure and protect in demanding environments
Electrical installations present very diverse conditions that require adapted measurement and protection solutions:
- Different voltage and current levels.
- Overload and short-circuit protection requirements.
- Need for electrical isolation of metering systems.
- Integration of protection and control equipment.
- Adaptation to new and existing installations.
An inadequate selection of measuring and protection elements can compromise both the safety of the installation as well as the reliability of the measurements on which decisions are made.

Instrument transformers and protection transformers:
a key element

Instrument transformers and protection transformers allow adapting the actual electrical quantities emissions from the installation to safe and manageable levels for measuring, protection and control equipment.
These elements guarantee:
- Electrical isolation between the primary and secondary circuit.
- Accuracy of current and voltage measurement.
- Correct operation of protection relays and control equipment.
They are therefore an essential part of both traditional measurement architectures and more advanced electrical systems.

SACI technology applied to the measurement and protection
SACI has a wide range of transformers designed to cover the measurement and protection needs of all types of electrical installations, offering robust, reliable solutions adapted to each application.
SACI's current transformers are available in multiple configurations and technologies, The new system can be adapted precisely to each installation environment:
- Low power transformers for specific applications.
- Traditional closed-core transformers.
- Open core transformers for existing installations.
- Resin or plastic versions, depending on insulation and environmental requirements.
Consult the complete range of current transformers for measurement and protection.


Tailor-made solutions for special requirements
Each installation has its own specific conditions that cannot always be solved with standard solutions. For this reason, SACI offers the possibility of develop customised equipment and transformers, adapted to special electrical specifications or to space limitations within the switchboard.
This approach allows customised solutions to be designed according to:
- Specific protection needs or measures.
- Small spaces or special mechanical configurations.
- Integration into existing switchboards without structural modifications.
The ability to adapt and customise reinforces SACI's role as a technology partner, capable of responding to unique and demanding projects.
Contact our technical team to study a customised measurement and protection solution.
Do you need advice on the selection of suitable instrument transformers and protection transformers for your installation?
Our technical team can help you define the most appropriate solution.







