HVA28TD

The smallest VLF test system of its kind with integrated Tan Delta Diagnostics. The HVA28TD is a truly compact and portable VLF test set system for testing medium voltage cables. It performs VLF and DC testing, sheath testing with sheath fault location mode and TD leakage current corection (guard terminal) is included. Assessments of cable condition can also be carried out by use of Tan Delta Diagnostics.

The HVA28TD is a truly compact and portable VLF test set system for testing medium voltage cables. It performs VLF and DC testing, sheath testing with sheath fault location mode and TD leakage current corection (guard terminal) is included. Assessments of cable condition can also be carried out by use of Tan Delta Diagnostics.
New – the recently introduced Monitored Withstand Test (MWT), a combination of Withstand Testing and Tan Delta Diagnostics in compliance with IEEE 400.2-2013, can
be performed. Performance – the HVA28TD offers outstanding features in terms of size, weight (14
kg) and performance (max. 10 µF). Safety – the instrument has two independent earthing devices (electronic and
mechanical discharging) and an integrated 12 kV feedback protection system to protect
both operator and instrument.
Field use – a watertight and very rugged case with a protection class of IP67 makes
additional transport boxes obsolete.
Connectivity – on site, no external PC is needed. All results can be downloaded later by
USB or Bluetooth for further investigation and easy report creation on the PC Software.

Features
• Output voltage 28 kVpeak , 20 kVrms
• Pure sinusoidal output voltage  (load-independent)
• Internal TD measurement with high accuracy (1 x 10-4)
• Tan Delta measurement with various frequencies (0,01 – 0,1 Hz)
• Leakage Guard® – leakage current correction
• Output current 20 mA max.
• Highest test capacity of 10 µF
• Ultra light and compact weight (14 kg)
• Protection class IP67 (with closed lid)
• Total protection – almost unbreakable, watertight, dustproof and corrosion proof case
• Large Colour display (4,3”)
• USB and Bluetooth connections
• Cable testing according: IEC60502-2:2015, IEEE 400.2-2004, CENELEC HD 620/621, IEEE400.2-2013 etc.
• Programmable test sequences
• Upgradable with partial discharge diagnostic system (optional)
• Integrated 12 kV transient protection
(50 Hz)