- Output voltage up to 29 kV peak / 21 kVrms
- Adjustable VLF frequency from 0.01 Hz to 0.1 Hz
- Sine wave and square wave VLF testing
- DC testing up to ±28 kV
- Integrated Tan Delta diagnostics (HVA28TD model)
- Continuous operation without thermal limitation
- 4.3” color display
- Secure communication via Bluetooth
- Report transfer via USB
- 12 kV backfeed protection
- Dual Discharge Device system (electronic and mechanical discharge)
- Compact IP67 design for field work
- Approximate weight of 14 kg
Frequently Asked Questions
What types of tests can be performed using the HVA28?
The system allows for the performance of sinusoidal VLF tests, DC tests, sheath tests, sheath fault location, and Tan Delta diagnostic tests in the HVA28TD version.
What advantages does the HVA28TD model offer over the standard HVA28?
The HVA28TD features Tan Delta diagnostics and a Monitored Withstand Test (MWT) function, enabling the combination of withstand tests with advanced insulation condition analysis in accordance with IEEE 400.2-2013.
Can the equipment operate continuously?
Yes. The system is designed for continuous operation without thermal limitations, allowing for extended testing campaigns without interruptions due to overheating.
What safety features does the HVA28 include?
It features a dual integrated discharge system (electronic and mechanical), back-feed protection up to 12 kV, and an arc-free contact design, enhancing operational safety during high-voltage testing.
What international standards does the equipment meet?
The HVA28/HVA28TD complies with standards such as IEEE 400.2, DIN VDE 0276-620, DIN VDE 0276-621, IEC 60502-2, and IEC 60229 for VLF testing and power cable testing.
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