FREJA 549 relay test system
A multipurpose, light, portable test instrument designed for the secondary testing of protection relays.
A multipurpose, light, portable test instrument designed for the secondary testing of protection relays.
Key Benefits
- Touch screen display
- Circuit breaker simulator
- Perform multi-phase tests
- Immediate error indication
Description
The FREJA549 relay test system is a multipurpose, light, portable test instrument designed for the secondary testing of protection relays. Offering up to 9 current channels, the unit can be operated either manually via the built-in touch screen user interface running FREJA Local or placed under full computer control via the FREJA Win Software. The built-in user interface is Megger’s second generation of automatic/semi-automatic manual user interface.
The FREJA549 has high compliance voltage to test high impedance earth fault relays, and high current to test all electromechanical, solid-state and numerical-based overcurrent relays, including voltage controlled, voltage restraint, and directional overcurrent. All FREJA and SMRT test sets can be daisy-chained where all channels are time synchronised and controlled as one system to cope with extreme test applications, ie large busbar protection systems or simultaneous injection in several Merging Units.
The large, easy to read full colour high resolution, high definition, TFT LCD touch screen display allows you to perform manual, steady-state, and dynamic testing quickly and easily. FREJA Local includes built-in preset test routines for automatic testing of protection relays and protection schemes. Menu screens and touch screen function buttons are provided to quickly and easily select the desired test function.
Tests and test results can be saved in FREJA Local memory and downloaded to a USB drive for test data transfer or to print test reports. Since the test set-ups and results are saved using Microsoft Explorer display, you can create your own test object structure. For fully automatic testing on a PC, each FREJA unit comes with an installed version of RTMS FREJA Remote. RTMS FREJA Remote is the FREJA Local software designed to run on a PC with the Windows 10 operating system. Additionally, both RTMS and the onboard system support direct transfer of installation files over Ethernet, eliminating the need for USB drives.
Frequently Asked Questions
If my unit has a built-in display, can I still control it with my computer?
Yes, you can control all FREJA models with and without display via your PC or laptop.
Choosing the best relay test set to buy is a really challenging task! Why are there so many different options on offer?
The real answer is so that you can buy a test set that’s a good match for your requirements and budget. Relay test sets represent a substantial investment, so there’s little point in spending more than you need on buying one with many facilities you’ll never use. On the other hand, buying a test set that seems inexpensive but can’t readily meet all of your requirements is a false economy. You’ll either end up replacing it or having to use time-consuming and uncertain workarounds to carry out your tests. That’s why Megger offers such a wide range of options. Consider three-phase testing, for example. Most applications require three voltages and three currents, which is enough to simulate most three-phase systems. But sometimes, a fourth voltage is needed to test, for example, the synchro-check function in complex relays. And for testing transformer differential protection, six currents are needed!
Are there test plans for my relays in the FREJA software?
RTMS includes a library of test plans called templates, which is available free of charge. The library can be downloaded and managed using a component of RTMS called “RTMS template manager.” Connect your PC to the internet, open “RTMS template manager”, and all the templates available in the cloud are shown. RTMS template manager will indicate which templates are already available on your PC. You can then download the ones that are not on your PC or update existing ones for which a newer version is available. The RTMS template manager will also indicate whether the templates are compatible with your software version. An upgrade of your local software version may be required to get some newer templates to work for you.
Does Megger have products and tools for IEC 61850 applications?
Yes! Megger is very active in this field. The company released its first products for IEC 61850 applications as early as 2009 and has been active in the development of the IEC 61850 standard since the mid-2000s.Today, Megger offers the FREJA and SMRT relay test sets, the hardware required to access the IEC 61850 network. Furthermore, the software Megger GOOSE Configurator (MGC) and Sampled Values Analyser (SVA) complete the IEC 61850 test system. With the MGC and SVA embedded in the SMRT and FREJA display models, the need to connect a computer to the IEC 61850 network is eliminated, enhancing cyber security.
