SebaKMT Easytest 20 kV ? VLF cable tester

Megger easytest 20 kV VLF Cable Test System

The Megger easytest 20 kV is a compact VLF (very low frequency) cable test system designed for utilities, MV cable contractors, and electrical engineers in Ireland who need a portable VLF cable tester for the 6 / 10 / 20 kV cable class. It delivers an AC test voltage up to 20 kV at 0.1 Hz, plus a DC voltage module with leakage measurement for sheath testing, in a single field-deployable instrument.

Where the higher-class Megger VLF Sinus 45 covers cable systems up to the upper end of the MV range, the easytest 20 kV is sized for the cable voltages that dominate the Irish distribution network: 6.6 kV, 10 kV, 11 kV, and 22 / 20 kV. For most everyday cable acceptance and proof testing on these systems, the easytest 20 kV is the right balance of capability and portability.

What the easytest 20 kV does

• VLF withstand testing: AC test voltage up to 20 kV at 0.1 Hz on cable systems up to the 12 / 20 kV class, applied at the test voltage of 1.7 Uo or as required by the local cable testing standard.
• Cable acceptance testing on commissioning of new MV cable circuits.
• Post-repair testing after joints, terminations, or section replacement.
• Periodic maintenance testing on installed cable as part of a condition-based maintenance programme.
• DC sheath testing: integrated DC voltage module with leakage measurement for sheath integrity testing.
• Chip-card or memory-card user access: simple, secure operator setup and test parameter recall.

VLF AC at 0.1 Hz is the recommended test method for modern XLPE and EPR polymeric MV cable, taking advantage of alternating voltage stress without the size and weight of a mains-frequency AC test set.

Why VLF over DC for MV cable testing

DC withstand testing was the standard for older paper-insulated lead-covered cable. On modern XLPE and EPR polymeric cable, DC testing can drive space-charge effects into the insulation that mask defects and in some cases accelerate insulation ageing. VLF AC at 0.1 Hz mirrors service stress far more closely while keeping the test set portable, which is why VLF cable testing has become the default approach for new and in-service MV cable in Ireland.

Specifications: what to confirm before you order

Target users and applications

• Utilities and DNOs commissioning new MV cable circuits and validating repairs
• Electrical engineers running condition-based maintenance programmes on installed MV cable
• HV and MV cable contractors carrying out acceptance testing for asset owners
• Renewable site engineers testing wind, solar, and BESS export and collector cable
• Industrial maintenance teams testing distribution cable in pharmaceutical, semiconductor, and data-centre estates

Typical applications include VLF withstand testing on commissioning, post-repair verification on MV cable joints and terminations, periodic VLF maintenance testing, and combined VLF plus DC sheath testing on a single outage. As authorised Megger distributor in Ireland, Powerpoint Engineering supplies the easytest 20 kV alongside the wider Megger VLF and cable test range, including the higher-class VLF Sinus 45 cable test and diagnosis system for sites that need 45 kV peak output and integrated diagnostic capability.

FAQs

Why use the easytest 20 kV instead of a larger VLF test set?

For MV cable up to the 12 / 20 kV class, the easytest 20 kV is the right level of capability. It is more portable than higher-class VLF systems, faster to set up, and matched to the test voltages required by the cable. For higher-voltage cable (33 kV and above), the larger VLF Sinus 45 is the right tool.

Does the easytest 20 kV do diagnostic testing?

The easytest 20 kV is primarily a withstand and sheath test set. For full diagnostic capability including tan delta and partial discharge, the larger VLF Sinus 45 with the appropriate diagnostic modules is the right system. Many test campaigns use the easytest for proof and the Sinus 45 for diagnostics.

Does the easytest 20 kV need calibration?

Yes. As a precision test instrument used for cable acceptance and reporting decisions, the easytest 20 kV should be recalibrated periodically. Powerpoint Engineering's calibration laboratory recalibrates Megger VLF cable test systems and supplies a traceable certificate.

To match the right Megger easytest configuration to your cable types, voltage class, and test workflow, request a quote or speak to our team for compatibility advice.