HVA28TD VLF DC Hipot Tester With Tan Delta

The HVA28TD VLF DC Hipot Tester with Tan Delta is the smallest VLF test system of its kind, designed for testing medium-voltage cables with unmatched portability and performance. This compact and lightweight device is capable of VLF and DC testing, as well as sheath testing with fault location mode, and features TD leakage current correction via a guard terminal. It allows for advanced cable condition assessments through built-in Tan Delta Diagnostics. Additionally, the innovative Monitored Withstand Test (MWT) enables compliance with IEEE 400.2-2013, seamlessly combining Withstand Testing with Tan Delta Diagnostics.

The unit prioritises safety through independent earthing devices and integrated feedback protection, while its rugged IP67-rated case ensures reliable field usage. Connectivity options like USB and Bluetooth simplify data transfer and reporting, making the HVA28TD a versatile solution for use in critical power projects.

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• Compact, portable design for field use.
• Integrated Tan Delta Diagnostics for precise condition assessment.
• Compliance with industry standards such as IEEE and IEC.
• High accuracy and reliability with advanced safety systems.
• Rugged IP67-rated case for harsh environments.
• Monitored Withstand Test (MWT) capability for combined Withstand and Tan Delta testing.

• Output Voltage: 28 kVpeak, 20 kVrms with pure sinusoidal output voltage.
• Output Current: Maximum 20 mA.
• Test Capacity: Up to 10 µF.
• Tan Delta Accuracy: Internal measurement accuracy of 1 x 10⁻⁴.
• Measurement Frequencies: 0.01 – 0.1 Hz.
• Weight: 14 kg (ultra-light and compact).
• Protection Class: IP67 rated case (watertight, dustproof, corrosion proof).
• Display: Large 4.3” color display for easy readability.
• Connectivity: USB and Bluetooth for seamless data management.
• Safety Features:
  • Two independent earthing devices (electronic and mechanical discharge).
  • Integrated 12 kV feedback protection.
• Standards Compliance:
  • IEC60502-2:2015
  • IEEE 400.2-2004 and IEEE400.2-2013
  • CENELEC HD 620/621
• Additional Features:
  • Programmable test sequences.
  • Upgradable with a Partial Discharge diagnostic system (optional).
  • Leakage Guard® for leakage current correction.

• Compact Design: Lightweight construction (14 kg) allows for easy transportation and setup at remote locations.
• Rugged Durability: IP67-rated watertight and dustproof case eliminates the need for additional transport boxes and offers optimal protection.
• Versatile Testing: Perform VLF, DC, and sheath testing, as well as advanced diagnostics like Tan Delta and Monitored Withstand Testing.
• Enhanced Safety: Built-in earthing devices and feedback protection safeguard the operator and instrument during testing.
• User-friendly Reporting: Integrated USB and Bluetooth connectivity enable download and reporting capabilities without the need for an external PC.

The HVA28TD VLF Test Set by B2 Electronics is designed for precision testing in a variety of settings, ensuring the health and reliability of medium-voltage cables. Its applications include:

• Cable testing in power utilities — Essential for routine testing and maintenance of underground cables, the HVA28TD for hire helps in detecting insulation weaknesses before they lead to failures, ensuring continuous power supply. It’s used for testing medium and high-voltage cables in residential areas, industrial plants and distribution networks.
• Installation testing for new cable systems — After laying new cable lines, the HVA28TD is used to perform acceptance testing to verify the integrity of cable insulation. This ensures that newly installed cables meet the required specifications and are safe for operational use.
• Preventive maintenance — In terms of preventive maintenance, the HVA28TD uses Tangent Delta diagnostics to identify potential issues in ageing cable systems, such as moisture ingress or insulation degradation. This allows for timely repairs, reducing downtime and extending the lifespan of the cable network.
• Substation equipment testing — Beyond cables, the HVA28TD can test substation equipment like transformers, switchgear and bushings. This ensures that all components of the power distribution network are in optimal working condition, enhancing system reliability.
• Renewable energy sector — As renewable energy sources like wind and solar farms are connected to the grid, the HVA28TD tests the cables and equipment used in these installations. This ensures that the integration of renewable energy sources does not compromise the grid’s integrity.