CT / VT Testing
Verify instrument transformer performance for reliable measurement and protection.
Explore ServiceA multi-purpose, lightweight, field-portable test set for electro-mechanical, solid-state and microprocessor-based protective relays, motor overload relays and similar protective devices, with an onboard touch display and RTMS software.

Official Megger product photography
| Manufacturer / model | Megger / FREJA 546R |
| Current output | 32 A at 200 VA RMS continuous per channel; 60 A at 319 VA short-duration; up to 180 A at 957 VA with three channels in parallel |
| Voltage output | 0–30/150/300 V at 150 VA per channel; 100 V with two channels in series |
| Compliance voltage | Up to 50 V RMS per phase |
| Display | 25.7 cm full-colour high-resolution TFT LCD touch screen |
| Communications | Isolated Ethernet port for IEC 61850 substation bus testing; USB for test report transfer |
| Software | RTMS Relay Test Management Software (Standard and Enhanced levels) |
| IEC 61850 | GOOSE testing with Megger GOOSE Configurator; 9-2 LE sampled values with Megger Sampled Values Analyser |
| Applications | Electro-mechanical, solid-state and microprocessor-based protective relays; motor overload relays |
Verify instrument transformer performance for reliable measurement and protection.
Explore ServiceAssess the electrical and mechanical performance of critical switching assets.
Explore ServiceDiscuss a testing scope tailored to your electrical infrastructure and industrial assets.
Explore Service
Timing, contact resistance and coil current measurements help form a more complete picture of breaker performance.
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Instrument transformer checks support accurate metering and dependable protection system behavior.
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A portable multifunction test system for power transformers and substation assets, combining more than 20 electrical test functions in one configurable platform.

A true three-phase winding resistance ohmmeter for power, distribution and instrument transformers, with one-time lead connection, automatic adaptive demagnetization and vector confirmation before every test.
Discuss your testing equipment, site services or calibration requirements with our technical team.