Description
Megger SMRT36D Relay Tester Repair
The SMRT36D is Megger’s six-current/six-voltage relay test set — a heavy-duty unit built for testing modern multi-function protective relays and IEC 61850 sampled-values schemes. With that many independent amplifier channels packed into a portable case, the SMRT36D works hard, and the faults we see reflect that: it’s the high-power amplifier and timing sections that wear, not the basics.
June Company repairs and calibrates the SMRT36D for utility relay technicians, substation commissioning crews, and protection engineers who can’t afford a dead channel in the middle of a commissioning job.
Common SMRT36D problems we fix
- One current channel dead or weak — output-stage failure in a single amplifier module; the other channels still work, which is the classic giveaway. Repaired at the component level so all six channels meet rated current again.
- Convertible channels won’t combine — the SMRT36D’s voltage channels convert to current for high-burden testing; when that mode fails it’s usually the internal switching, which we repair and verify.
- Timing/contact errors on trip tests — sense-input or timing-reference drift throwing off pickup/dropout and trip-time measurements.
- IEC 61850 / GOOSE not communicating — Ethernet/network interface faults that stop sampled-values and GOOSE testing.
- STVI controller unresponsive — the Smart Touch View Interface display or its connection.
FAQs
One of my six current channels is down — fixable? Yes, and it’s the most common SMRT36D repair. A single dead amplifier is a component-level fix, then we verify all channels against our standards and return it with NIST-traceable calibration.
Do you test the IEC 61850 functions? Yes. We verify GOOSE and sampled-values operation along with the analog channels so the set is ready for modern substation work.
Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or submit a service request.
