Article Overview
Finland offers advanced professional relay protection test benches through local suppliers like Teklab and service providers such as EPF, complemented by international systems like Megger SMRT410 and OMICRON.
Finnish Suppliers and Service Providers
Teklab specializes in manufacturing professional electric test bench solutions for industrial and educational purposes. Their workstations are modular, ergonomic, and designed for realistic training and R&D applications. Teklab's products are Finnish-made, and they provide full support for designing and configuring laboratories or workshops, including layouts and workstation plans tailored to customer needs . Electric Power Finland (EPF) offers testing and commissioning services for substations, including maintenance and relay testing. Their services cover all device models commonly used in Finland, regardless of manufacturer or age, and can be scheduled flexibly to minimize disruption to electricity distribution .
Professional Relay Test Systems
Megger SMRT410 and SMRT410D are portable, multi-phase relay test systems capable of testing electromechanical, solid-state, and microprocessor-based protective relays. They feature up to 4 voltage channels and 6 high-current channels, with the ability to daisy-chain multiple units for synchronized testing of large busbar systems. The systems support manual, semi-automatic, and automatic testing via the Smart Touch View Interface (STVI) and RTMS software, making them suitable for commissioning and maintenance of complex protection systems . OMICRON provides compact, modular relay test sets for primary and secondary injection, including multi-phase testing and IEC 61850 digital relay verification. Their systems can simulate sensor inputs using accessories like LLX1, allowing testing of relays with voltage dividers, Rogowski coils, or low-power current transformers. OMICRON solutions are designed to test protection relays of all generations efficiently without deactivating relay functions . Other Options include high-current primary injection devices like the DDG Primary Current Injector Test Set, which can generate controlled large currents for CT calibration, temperature-rise testing, and safety verification of protection devices .
Key Considerations
When selecting a professional relay protection test bench in Finland, consider:
- Type of relays: Electromechanical, static, microprocessor-based, or IEC 61850 digital relays.
- Testing capabilities: Primary and secondary injection, multi-phase testing, and high-current output.
- Portability and modularity: Field-portable systems versus fixed laboratory benches.
- Software support: Automatic test routines, data logging, and compatibility with Windows-based management software.
- Local support: Availability of Finnish suppliers for installation, training, and maintenance. By combining local expertise from Teklab and EPF with international test systems like Megger and OMICRON, Finland provides comprehensive solutions for professional relay protection testing, suitable for industrial, educational, and substation applications.
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