FAT / SAT – Factory and Site Acceptance Testing

Acceptance tests, whether performed in the factory (FAT – Factory Acceptance Test) or on-site (SAT – Site Acceptance Test), are essential procedures within the lifecycle of electrical systems and equipment used in substations. These tests are conducted to validate the performance, operation, and compliance of critical components before they are put into full operation. Conprove, a national reference in testing and simulation solutions for the electric sector, provides robust equipment and software to ensure these procedures are carried out with precision, efficiency, and agility.

The Importance of Acceptance Testing

In power sector projects, equipment and system reliability is non-negotiable. Conducting FAT and SAT ensures that all contractual requirements, technical specifications, and applicable standards are met, minimizing risks and costs related to rework or operational failures. These tests also provide operational security, increasing customer confidence in the acquisition and installation of the system.

FATs are carried out at the manufacturer’s facilities, prior to shipment. SATs are performed on-site after the system is installed, integrating various components into the plant’s real operating environment. Both are essential to ensure devices function correctly, both individually and in conjunction with other system elements.

Applications of FAT and SAT

The main systems and equipment subject to FAT and SAT include:

Protection relays
Circuit breakers
Current (CT) and potential (PT) transformers
Control and protection panels
SCADA systems
Communication equipment (time synchronization, gateways, switches)

Tests verify aspects such as control logic, protection functions, operating times, parameter settings, I/O operations, and communication with SCADA systems, among others.

Conprove Equipment for FAT and SAT Testing

To meet the strict requirements of FAT and SAT with agility and reliability, Conprove has developed a high-tech line of universal testers, suitable for both lab and field applications. Below are the most widely used models for these processes:

CE-67NET: Compact tester for diagnostics and testing in digital substations, fully supporting IEC 61850 / IEC 61869 standards.
CE-6707: Portable instrument, ideal for both field and laboratory use.
CE-6710: Multifunctional universal tester with 6 current and 4 voltage channels.
CE-7012: Multifunctional universal tester with 6 current and 6 voltage channels. Capable of primary-level testing.
Full compatibility with all types of relays in the market.

In addition to hardware, Conprove offers a complete software testing platform, including tools for automated testing of conventional relays and IEDs, with full support for the IEC 61850 protocol used in digital substations.

Benefits of Conprove Equipment

Conprove’s equipment and software are designed to offer:

Portability and ease of use in the field
High-precision results
Intuitive interface with various testing modes
Comprehensive and customizable reports
Compatibility with leading relay brands
Testing in conventional and IEC 61850 environments

The flexibility of the Conprove line allows a single test set to perform a wide range of FAT or SAT procedures, reducing the need for multiple instruments and optimizing test execution time.

Why Choose Conprove?

With over four decades in the electrical sector, Conprove is a 100% Brazilian company that combines technical expertise, innovation, and a strong commitment to quality. Our mission is to provide solutions that help engineers, technicians, and operators ensure the reliability and performance of electrical systems, directly contributing to the safety and continuity of power system operations.

By choosing Conprove products, your team gains: