- The HVA60 is a portable very low frequency (VLF) testing system designed to assess the condition of insulation in medium-voltage cables. It enables the performance of sinusoidal and DC VLF voltage tests in accordance with international standards, providing a reliable solution for acceptance, maintenance, and diagnostic testing on cables with XLPE, EPR, PE, and PILC insulation. Its compact design, autonomous operation, and high load capacity make it particularly well-suited for field work at substations, industrial plants, and distribution networks.
Frequently Asked Questions
What types of tests can the HVA60 perform?
The HVA60 enables sine-wave VLF dielectric strength testing, DC insulation testing, and sheath testing. These tests are used to verify the integrity of the insulation, detect defects, and validate the operational condition of medium-voltage cables.
Is this equipment suitable for field testing and mobile work?
The equipment can generate up to 44 kV RMS at VLF (62 kV peak), with frequencies adjustable between 0.01 Hz and 0.1 Hz, allowing the test to be adapted to different types of cables and lengths, in accordance with regulatory recommendations such as IEEE 400.2.
What advanced features improve accuracy and reduce testing time?
The HVA60 supports capacitive loads of up to 1.0 μF at 0.1 Hz, allowing for the testing of long cable runs or cables with high capacitance without compromising signal stability or test duration.
How can test results be managed and exported?
Yes. The system is designed as a dry (oil-free) unit with a compact and robust design that makes it easy to transport and operate in the field. It does not require a PC to operate and features automatic discharge systems that enhance operator safety.
Can it be integrated with other diagnostic systems?
The HVA60 can be used as part of an expanded diagnostic system when combined with additional equipment for measuring partial discharge (PD) or tangent delta (TD), enabling more comprehensive assessments of the cable's insulation condition.
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