Description
Baur PHG 70 TD Diagnostic Tester Repair
The Baur PHG 70 TD is a 70 kV VLF cable test set with integrated tan-delta (TD) diagnostics — it doesn’t just withstand-test cable, it measures dielectric loss to assess the insulation’s actual condition and aging. Combining an HV source with a precision tan-delta measurement means its faults span both the HV side and the sensitive loss measurement.
June Company repairs and calibrates the PHG 70 TD for cable-diagnostics specialists and utility crews.
Common PHG 70 TD problems we fix
- Tan-delta readings off — drift in the loss-measurement circuit, the diagnostic heart of this set, recalibrated against standards.
- Won’t reach 70 kV or output collapses — HV output-stage failure, often post-flashover, rebuilt.
- Waveform distortion — regulation faults on the 0.1 Hz output, corrected.
- Voltage metering drift — recalibrated.
- Internal HV arcing or interlock faults.
FAQs
My tan-delta numbers look wrong — fixable? Yes. TD accuracy drift traces to the loss-measurement circuit; we repair and recalibrate it so cable condition assessments are trustworthy, with a NIST-traceable certificate.
Is the HV side verified too? Yes — withstand output is checked along with the diagnostics.
Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or submit a service request.






