Description
Megger Arc Reflection Filter Repair
The Megger Arc Reflection Filter (ARF) is a cable-fault-location accessory — it couples a surge generator (thumper) and a TDR together so the arc-reflection method (ARM) can capture the fault arc on the TDR trace, while protecting the TDR from the high-voltage surge. As an HV coupling/protection unit, its faults are HV isolation, coupling, and connection faults.
June Company repairs and calibrates the Megger Arc Reflection Filter for utility fault crews and cable contractors.
Common Megger Arc Reflection Filter problems we fix
- TDR not capturing the arc — coupling-network faults that stop the arc-reflection method working, repaired so ARM captures correctly.
- HV isolation / protection breakdown — insulation failure that risks the TDR, repaired so the TDR is protected from the surge.
- Connection / port faults — the surge and TDR connections, serviced.
- Internal arcing — from HV stress, repaired.
FAQs
My arc-reflection traces aren’t capturing the fault — is it the filter? Often, yes — a coupling or isolation fault in the ARF stops the method working. We repair it so ARM captures the arc and the TDR is protected, with documented verification.
Do you verify it with a TDR and surge source? Yes — the coupling is verified end to end.
Every repair includes a 90-day parts-and-labor warranty. Email us or submit a service request.







