Description
HV Diagnostics HVA34 Hipot Tester Repair
The HV Diagnostics HVA34 is a 34 kV VLF (very-low-frequency) hipot test set — it applies very-low-frequency (0.1 Hz) high voltage to withstand-test and diagnose medium-voltage cable insulation, where DC or power-frequency AC would be unsuitable. It combines a VLF HV source with leakage/measurement, so faults span the HV side and the measurement side both.
June Company repairs and calibrates the HV Diagnostics HVA34 for cable-testing and utility crews.
Common HV Diagnostics HVA34 problems we fix
- HV output-stage failure — won’t reach VLF test voltage or output unstable, the HV stage repaired for stable rated output.
- VLF waveform faults — the 0.1 Hz waveform distorted or off-frequency, corrected.
- Leakage / measurement off — the measurement your pass/fail and diagnostics depend on, recalibrated against standards.
- Internal HV arcing or leakage — insulation breakdown from stress.
- Control or interlock faults.
FAQs
My HVA34 won’t reach VLF voltage — repairable? Yes. HV output-stage faults are serviceable; we restore stable rated VLF output and recalibrate the measurement, with a NIST-traceable certificate.
Is the VLF waveform verified? Yes — output voltage and waveform are checked against our standards.
Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or submit a service request.
Brand
HV Diagnostics Repair
HV Diagnostics (HVD) specializes in manufacturing high-voltage diagnostic test equipment primarily used in the maintenance and testing of high-voltage electrical assets. Some of their key products and their functionalities include:
Partial Discharge (PD) Measurement Systems: These systems detect and measure partial discharges within insulation materials of high-voltage equipment. PD testing helps identify potential insulation weaknesses or faults before they lead to failures.
Tan Delta Measurement Systems: Used to measure the dielectric dissipation factor (tan delta) of insulation materials. This measurement helps assess the condition of insulation and detect early signs of deterioration.
Cable Fault Locators: Instruments designed to pinpoint faults and defects in underground cables. They help locate the exact location of faults without the need for extensive excavation, reducing downtime during repairs.
VLF (Very Low Frequency) Test Systems: Used for high-voltage testing of cables and other electrical equipment at frequencies typically between 0.1 Hz and 1 Hz. VLF testing assesses the integrity and condition of insulation under stress, helping predict potential failures.
Transformer Diagnostic Systems: Equipment designed to assess the condition of transformers through various tests such as insulation resistance, transformer turns ratio, and oil testing. These diagnostics help ensure the reliability and longevity of transformers in power distribution networks.
High-Voltage Testing Accessories: HVD also offers a range of accessories and software solutions that complement their diagnostic systems, enhancing the usability and efficiency of high-voltage testing and maintenance procedures.
Overall, HV Diagnostics products are essential tools for utilities, industrial facilities, and service providers involved in the maintenance and reliability testing of high-voltage electrical equipment and systems. They contribute to improving safety, reliability, and efficiency in electrical power networks and installations.
