Description
Megger HVB10 High Voltage Bridge Repair
The Megger HVB10 is a high-voltage capacitance and dissipation-factor (tan-delta) bridge — it energizes insulation at high voltage and precisely measures capacitance and dielectric loss to assess the condition of transformer bushings, CTs, and insulation. It pairs an HV source with a precision loss/capacitance bridge, so faults span the HV side and the sensitive measurement side — not the cable-locator/route-tracer faults its category label implies.
June Company repairs and calibrates the Megger HVB10 for insulation-diagnostics and high-voltage test teams.
Common Megger HVB10 problems we fix
- Dissipation-factor / capacitance readings off — drift in the measurement bridge, the critical function, recalibrated against standards.
- HV output low or unstable — the HV source degrading, repaired for stable test voltage.
- Bridge-balance faults — the bridge not balancing correctly, repaired.
- Connection / guard faults — the measurement connections, serviced.
- Display or control faults.
FAQs
My HVB10 tan-delta numbers look wrong — repairable? Yes. Bridge-measurement accuracy drift is repairable and recalibrated so insulation condition assessments are trustworthy, with a NIST-traceable certificate.
Is the HV output verified? Yes — test voltage is checked along with the bridge measurement.
Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or submit a service request.







